Active stylus and processing circuit and method thereof, and touch processing device and method

Abstract

The invention relates to an active stylus, a processing circuit and method thereof, and a touch processing device and method. The touch control processing device can judge the proximity position and pen touch end information of the active touch control pen according to signals received in pen point and pen tail signal periods after the lighthouse signal. The touch control system can make different responses by using different pen touch end information.

Description

Technical Field

[0001] The present application relates to an active stylus, and more particularly to an active stylus that can detect lighthouse signals through both the pen tip and the pen tail. Background Art

[0002] A general touch panel or screen can use the mutual capacitance principle to detect external conductive objects. For example, a finger or a passive stylus will conduct the charge of the capacitor between the touch electrodes to the ground. However, the mutual capacitance principle cannot be used to distinguish between fingers and passive styluses. An active stylus can actively send an electrical signal to the touch panel or screen, so that the touch processing device connected to it can distinguish between fingers and active styluses.

[0003] Compared with passive stylus, the disadvantage of existing active stylus is that it only has the pen tip electrode, and there is no way to use the pen tail for additional touch control. In addition, there are more components, which requires higher costs, consumes more power, is less resistant to falling and shock. It often breaks down after falling from the desktop to the ground. Therefore, an active stylus with fewer components is needed, which has lower costs and power consumption, is more resistant to falling and shock, and can also use the pen tail to perform additional touch functions. Summary of the invention

[0004] According to one embodiment of the present application, a processing circuit for an active stylus is provided, comprising: a driving circuit for emitting an electrical signal; a sensing circuit for sensing a lighthouse signal; a connection network for respectively connecting a pen tip electrode and a pen tail electrode located at two ends of the active stylus; and a control circuit for: allowing the connection network to simultaneously connect the sensing circuit to the pen tip electrode and the pen tail electrode, and allowing the sensing circuit to detect the lighthouse signal during the lighthouse signal period; and after the sensing circuit detects the lighthouse signal, performing the following steps: allowing the connection network to connect the driving circuit to the pen tail electrode, and allowing the driving circuit to emit a pen tail signal during the pen tail signal period after the lighthouse signal period; and allowing the connection network to connect the driving circuit to the pen tip electrode, and allowing the driving circuit to emit a pen tip signal during the pen tip signal period after the lighthouse signal period.

[0005] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the above-mentioned sensing circuit only includes components of a single channel, which are used to simultaneously detect the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0006] Preferably, in order to provide information about the pen tip pressure to the touch processing device, the active stylus further includes a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes with the force applied to the pen tip electrode, and the first pen tip signal after the first modulation provided by the driving circuit is transmitted through the fixed impedance element to the pen tip electrode, and the second pen tip signal after the second modulation provided by the driving circuit is transmitted through the variable force impedance element to the pen tip electrode.

[0007] Preferably, in order to save costs, resist drops, shocks, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0008] Preferably, in order to provide additional information to the touch processing device, the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the pen tip end of the active stylus, wherein the above-mentioned driving circuit provides a first pen tip signal after a first modulation to the pen tip electrode, and the driving circuit provides a third pen tip signal after a third modulation to the one or more ring electrodes.

[0009] Preferably, in order to save cost, resist falling, resist shock, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0010] Preferably, in order to facilitate adjustment, the processing circuit includes a processor for executing a plurality of instructions stored in a non-volatile memory to implement the control circuit.

[0011] According to an embodiment of the present application, an active stylus is provided, comprising the pen tip electrode, the pen tail electrode and the processing circuit as described above.

[0012] According to one embodiment of the present application, a processing method for an active stylus is provided, wherein the active control pen includes a tip electrode and a tail electrode located at two ends of the active stylus, and the processing method for the active stylus includes: allowing the connection network of the active stylus to simultaneously connect the sensing circuit of the active stylus to the tip electrode and the tail electrode, and allowing the sensing circuit to detect the lighthouse signal during the lighthouse signal period; and after the sensing circuit detects the lighthouse signal, performing the following steps: allowing the connection network to connect the driving circuit of the active stylus to the tail electrode, and allowing the driving circuit to emit a tail signal during the tail signal period after the lighthouse signal period; and allowing the connection network to connect the driving circuit to the tip electrode, and allowing the driving circuit to emit a tip signal during the tip signal period after the lighthouse signal period.

[0013] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the above-mentioned sensing circuit only includes components of a single channel, which are used to simultaneously detect the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0014] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the active stylus further includes a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes with the force applied to the pen tip electrode. The processing method of the active stylus further includes: allowing the first pen tip signal after the first modulation provided by the driving circuit to pass through the fixed impedance element to the pen tip electrode; and allowing the second pen tip signal after the second modulation provided by the driving circuit to pass through the variable force impedance element to the pen tip electrode.

[0015] Preferably, in order to save costs, resist drops, shocks, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0016] Preferably, in order to provide additional information to the touch processing device, the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip of the active stylus, wherein the above-mentioned active stylus processing method further includes: allowing the driving circuit to provide a first pen tip signal after a first modulation to the pen tip electrode, and the driving circuit to provide a third pen tip signal after a third modulation to the one or more ring electrodes.

[0017] Preferably, in order to save cost, resist falling, resist shock, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0018] According to an embodiment of the present application, a touch processing device suitable for a touch panel is provided. The touch panel includes a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis. The touch processing device includes: a connection network module, used to connect the plurality of first electrodes and the plurality of second electrodes respectively; a drive circuit module, used to provide a drive signal; a sensing circuit module, used to sense the signal; and a processor module, used to execute a plurality of instructions in a non-volatile memory to implement: selecting one of the plurality of first electrodes in turn and performing the following steps; causing the connection network module to connect the drive circuit module to the selected first electrode; causing the connection network module to connect the drive circuit module to the selected first electrode; The sensing circuit module is connected to the plurality of second electrodes; the driving circuit module sends out a driving signal; the sensing circuit module detects the pen tail signal during the pen tail signal period to obtain one-dimensional pen tail signal sensing information; and the sensing circuit module detects the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; all the above-mentioned one-dimensional pen tail signal sensing information are combined into a pen tail signal sensing image; all the above-mentioned one-dimensional pen tip signal sensing information are combined into a pen tip signal sensing image; and according to the pen tail signal sensing image and the pen tip signal sensing image, the proximity position of the active stylus and the pen tip information of the pen tip end or the pen tail end being close to the touch panel are calculated.

[0019] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0020] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the processor module is further used to calculate the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0021] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0022] Preferably, in order to provide additional active stylus information to the touch processing device, the stylus tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus tip end of the active stylus, wherein the one-dimensional stylus tip signal sensing information includes sensing information of a first stylus tip signal and a third stylus tip signal, the first stylus tip signal comes from the stylus tip electrode, and the third stylus tip signal comes from the one or more ring electrodes, the processor module is further used to: calculate two proximity positions of the stylus tip electrode and the one or more ring electrodes based on the stylus tip signal sensing image; calculate the projection axis of the active stylus based on the two proximity positions; and calculate the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the stylus tip electrode and the one or more ring electrodes.

[0023] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0024] According to an embodiment of the present application, a touch processing method for a touch processing device applicable to a touch panel is provided. The touch panel includes a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis. The touch processing method includes: selecting one of the plurality of first electrodes in turn and performing the following steps: enabling a connection network module of the touch processing device to connect a driving circuit module of the touch processing device to the selected first electrode; enabling the connection network module to connect a sensing circuit module of the touch processing device to the plurality of second electrodes; enabling the driving circuit module to send a driving signal to the driving circuit module; signal; allowing the sensing circuit module to detect the pen tail signal during the pen tail signal period to obtain one-dimensional pen tail signal sensing information; and allowing the sensing circuit module to detect the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; all of the above-mentioned one-dimensional pen tail signal sensing information are combined into a pen tail signal sensing image; all of the above-mentioned one-dimensional pen tip signal sensing information are combined into a pen tip signal sensing image; and according to the pen tail signal sensing image and the pen tip signal sensing image, calculate the proximity position of the active stylus and the pen touch end information of the pen tip end or the pen tail end being close to the touch panel.

[0025] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0026] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0027] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0028] Preferably, in order to provide additional active stylus information to the touch processing device, the stylus tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus tip end of the active stylus, wherein the one-dimensional stylus tip signal sensing information includes sensing information of a first stylus tip signal and a third stylus tip signal, the first stylus tip signal comes from the stylus tip electrode, and the third stylus tip signal comes from the one or more ring electrodes, the touch processing method further includes: calculating two proximity positions of the stylus tip electrode and the one or more ring electrodes based on the stylus tip signal sensing image; calculating the projection axis of the active stylus based on the two proximity positions; and calculating the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the stylus tip electrode and the one or more ring electrodes.

[0029] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0030] According to one embodiment of the present application, a touch processing device suitable for a touch panel is provided, wherein the touch panel comprises a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, and the touch processing device comprises: a connection network module for respectively connecting the plurality of first electrodes and the plurality of second electrodes; a drive circuit module for providing a drive signal; a sensing circuit module for sensing a signal; and a processor module for executing a plurality of instructions in a non-volatile memory to implement: causing the connection network module to connect the drive circuit module to the plurality of first electrodes; causing the drive circuit module to send a beacon signal; causing the connection network module to connect the sensing circuit module to the plurality of first electrodes and the plurality of The second electrode; enables the sensing circuit module to detect the pen tail signal through the multiple second electrodes and the multiple first electrodes respectively during the pen tail signal period to obtain the first-axis pen tail signal sensing information and the second-axis pen tail signal sensing information; enables the sensing circuit module to detect the pen tip signal through the multiple second electrodes and the multiple first electrodes respectively during the pen tip signal period to obtain the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; and calculates the proximity position of the active stylus and the pen touch end information of whether the pen tip or the pen tail end is close to the touch panel according to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information.

[0031] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0032] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the processor module is further used to calculate the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0033] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0034] Preferably, in order to provide additional active stylus information to the touch processing device, the tip electrode of the active stylus includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the above-mentioned first-axis pen tip signal sensing information and second-axis pen tip signal sensing information include sensing information of a first pen tip signal and a third pen tip signal, the first pen tip signal comes from the pen tip electrode, and the third pen tip signal comes from the one or more ring electrodes, the processor module is further used to: calculate two proximity positions of the pen tip electrode and the one or more ring electrodes according to the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; calculate the projection axis of the active stylus according to the two proximity positions; and calculate the tilt angle of the active stylus and the touch panel according to the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

[0035] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0036] According to an embodiment of the present application, a touch processing method for a touch processing device applicable to a touch panel is provided, wherein the touch panel comprises a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, and the touch processing method comprises: allowing a connection network module of the touch processing device to connect a driving circuit module of the touch processing device to the plurality of first electrodes; allowing the driving circuit module to send a beacon signal; allowing the connection network module to connect a sensing circuit module of the touch processing device to the plurality of first electrodes and the plurality of second electrodes; allowing the sensing circuit module to respectively transmit a lighthouse signal to the plurality of first electrodes and the plurality of second electrodes during a pen tail signal period. The second electrode and the multiple first electrodes detect the pen tail signal to obtain the first-axis pen tail signal sensing information and the second-axis pen tail signal sensing information; the sensing circuit module is enabled to detect the pen tip signal through the multiple second electrodes and the multiple first electrodes during the pen tip signal period to obtain the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; according to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information, the proximity position of the active stylus and the pen tip information of the pen tip end or the pen tail end approaching the touch panel.

[0037] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0038] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0039] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0040] Preferably, in order to provide additional active stylus information to the touch processing device, the tip electrode of the active stylus includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the above-mentioned first-axis pen tip signal sensing information and second-axis pen tip signal sensing information include sensing information of a first pen tip signal and a third pen tip signal, the first pen tip signal comes from the pen tip electrode, and the third pen tip signal comes from the one or more ring electrodes, the touch processing method further includes: calculating two proximity positions of the pen tip electrode and the one or more ring electrodes based on the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; calculating the projection axis of the active stylus based on the two proximity positions; and calculating the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

[0041] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0042] According to an embodiment of the present application, a touch control system is provided, comprising the touch control panel and the touch control processing device as described above. Preferably, the touch control system further comprises the active touch pen as described above.

[0043] The active stylus provided in the present application can detect the beacon signal using a single-channel sensing circuit to save costs, be drop-resistant, shock-resistant, and save power without having to determine whether the beacon signal from the touch panel is received by the pen tip electrode or the pen tail electrode. In addition, the active stylus can also use a single-channel driving circuit to send out electrical signals corresponding to the beacon signal in a time-sharing manner, so that the touch processing device of the touch panel can determine the proximity position and pen touch end information of the active stylus based on the signals received during the pen tip and pen tail signal periods after the beacon signal. Using different pen touch end information, the touch system can make different responses. For example, an active stylus with the pen tail end in proximity can indicate the function of wiping. When the active stylus sends electrical signals in multiple pen tip signal periods, it can send information representing pressure, projection axis, tilt angle, etc. to the touch processing device.

[0044] A person skilled in the art can understand that in other examples of the present application, differently modulated tip signals or tail signals can be used to indicate whether one or more buttons on the active stylus are pressed. For example, when a button is pressed, a tail signal can be produced using one modulation method, and when the button is not pressed, the tail signal can be modulated using another method. The sensing circuit module of the touch processing device can know the button status of the active stylus based on the modulation method of the tail signal received during the tail signal period. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 FIG. 1 is a block diagram of a touch control system 100 according to an embodiment of the present invention.

[0046] Figure 2 FIG. 1 is a block diagram of a stylus pen 130 according to an embodiment of the present application.

[0047] Figure 3 FIG. 3 is a timing diagram of a stylus signal cycle 300 according to an embodiment of the present application.

[0048] Figure 4 FIG. 3 is a timing diagram of a stylus signal cycle 300 according to another embodiment of the present application.

[0049] Figure 5 FIG. 5 is a block diagram of a stylus processing method 500 according to an embodiment of the present application.

[0050] Figure 6 FIG. 1 is a schematic diagram of a user holding the stylus pen 130 .

[0051] Figure 7 FIG. 7 is a flow chart of a stylus sensing method 700 according to an embodiment of the present application.

[0052] Figure 8FIG. 7 is a flow chart of a one-dimensional stylus sensing method 720 according to an embodiment of the present application.

[0053] Fig. 9 FIG. 9 is a flow chart of a stylus sensing method 900 according to an embodiment of the present application.

[0054] Fig.10 FIG. 4 is a schematic diagram of sensing information according to an embodiment of the present application.

[0055] Fig.11 FIG. 4 is a schematic diagram of a two-axis sensing array according to an embodiment of the present application.

[0056]

Main component symbol description

[0057] 100: touch control system 110: touch control processing device

[0058] 111:Interconnection Network Module

[0059] 112: driving circuit module 113: sensing circuit module

[0060] 114: processor module 115: interface module

[0061] 116: non-volatile memory 120: touch panel or screen

[0062] 121: first electrode 122: second electrode

[0063] 130: Touch pen 135: Touchpad eraser

[0064] 140: Host 141: Input / output interface module

[0065] 142: CPU module 143: Graphics processor module

[0066] 144: Memory module 145: Network interface module

[0067] 146: memory module 210: network connection

[0068] 220: driving circuit 230: sensing circuit

[0069] 240: Pen tip electrode 241: Pen tip electrode

[0070] 242: Ring electrode 250: Pen tail electrode

[0071] 260: processor or control circuit 300: stylus signal cycle

[0072] 305: First interval period 310: Lighthouse signal period

[0073] 315: Second isolation period 320: Pen end signal period

[0074] 330: Written Signal Period 335: Third Isolation Period

[0075] 431: first pen signal period 432: second pen signal period

[0076] 433: third pen tip signal period 500: stylus pen processing method

[0077] 510~560: Step 699: Hand

[0078] 700: Touch processing method 710-750: Steps

[0079] 810-880: Step 900: Touch processing method

[0080] 910-970: Step 1010: Sensing Information

[0081] 1011: One-dimensional pen tip signal sensing information

[0082] 1012: One-dimensional first pen tip signal sensing information

[0083] 1013: One-dimensional second pen tip signal sensing information

[0084] 1014: One-dimensional third pen tip signal sensing information

[0085] 1021: Pen end signal sensing image

[0086] 1110: First axis sensing information

[0087] 1111: first axis pen tail signal sensing array

[0088] 1112: first axis pen tip signal sensing array or first axis first pen tip signal sensing array

[0089] 1113: First axis second pen tip signal sensing array

[0090] 1114: First axis third pen tip signal sensing array

[0091] 1120: Second axis sensing information

[0092] 1121: Second axis pen tail signal sensing array

[0093] 1122: Second axis pen tip signal sensing array or second axis first pen tip signal sensing array

[0094] 1123: Second axis second pen tip signal sensing array

[0095] 1124: Second axis third pen tip signal sensing array DETAILED DESCRIPTION

[0096] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than comprehensive embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0097] The terms "first", "second", "third", etc. (if any) in the specification and claims of this application and the drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the objects described are interchangeable where appropriate. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. The functional entities can be implemented in software form, or in one or more hardware circuits or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0098] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0099] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with drawings and specific implementation methods.

[0100] Please refer to Figure 1 , which is a schematic block diagram of a touch control system 100 according to an embodiment of the present invention. The touch control system 100 can be a common desktop, laptop, tablet personal computer, industrial control computer, smart phone or other computer system with touch function.

[0101] The touch control system 100 may include a touch control processing device 110, a touch panel or screen 120 connected to the touch control processing device, and a host 140 connected to the touch control processing device. The touch control system 100 may further include one or more styluses 130 and / or touchpad erasers 135. Hereinafter, in this application, the touch panel or screen 120 may be generally referred to as a touch screen 120, but in an embodiment lacking a display function, a person skilled in the art will know that the touch screen referred to in this application is a touch panel.

[0102] The touch screen 120 includes a plurality of first electrodes 121 parallel to the first axis and a plurality of second electrodes 122 parallel to the second axis. The first electrode 121 can be interlaced with the plurality of second electrodes 122 to form a plurality of sensing points or sensing areas. Similarly, the second electrode 122 can be interlaced with the plurality of first electrodes 121 to form a plurality of sensing points or sensing areas. In some embodiments, the present application may refer to the first electrode 121 as a first touch electrode 121, and the second electrode 122 as a second touch electrode 122. The present application also collectively refers to the first electrode 121 and the second electrode 122 as touch electrodes. In some embodiments of the touch screen 120, the first electrode 121 and the second electrode 122 are made of transparent materials. The first electrode 121 and the second electrode 122 can be in the same electrode layer, and the plurality of conductive sheets of each first electrode 121 or the second electrode 122 are connected by a bridge. The first electrode 121 and the second electrode 122 can also be in different electrode layers stacked up and down. Unless otherwise specified, the present application is generally applicable to embodiments of a single layer or multiple electrode layers. The first axis and the second axis are generally perpendicular to each other, but the present application does not limit the first axis to be perpendicular to the second axis. In one embodiment, the first axis may be a horizontal axis or an update axis of the touch screen 120. The first electrode 121 and / or the second electrode 122 may include a plurality of conductive sheets, and a person skilled in the art may refer to the applicant's previous patent applications to understand various embodiments of the first electrode 121 and / or the second electrode 122.

[0103] The touch processing device 110 may include the following hardware circuit modules: an interconnection network module 111, a driving circuit module 112, a sensing circuit module 113, a processor module 114, an interface module 115, and a non-volatile memory 116. The touch processing device 110 may be implemented in a single integrated circuit, which may include one or more chips. The touch processing device 110 may also be implemented using multiple integrated circuits and an interconnected circuit board carrying the multiple integrated circuits. The touch processing device 110 may also be implemented in the same integrated circuit as the above-mentioned host 140, or in the same chip as the above-mentioned host 140. In other words, the present application does not limit the implementation method of the touch processing device 110.

[0104] The connection network module 111 is used to respectively connect the plurality of first electrodes 121 and / or the plurality of second electrodes 122 of the touch screen 120. The connection network module 111 can receive control commands from the processor module 114, and is used to connect the driving circuit module 112 with any one or more touch electrodes, and is also used to connect the sensing circuit module 113 with any one or more touch electrodes. The connection network module 111 can include a combination of one or more multiplexers (MUX) to implement the above functions.

[0105] The driving circuit module 112 may include components such as a clock generator, a frequency divider, a frequency multiplier, a phase-locked loop, a power amplifier, a DC-DC voltage converter, a rectifier and / or a filter, and is used to provide a driving signal to any one or more touch electrodes through the above-mentioned connection network module 111 according to the control command of the processor module 114. Various analog signals or digital signals can be modulated for the above-mentioned driving signal to transmit certain information. The above-mentioned modulation methods include but are not limited to frequency modulation (FM), phase modulation, amplitude modulation (AM), double sideband modulation (DSB), single sideband modulation (SSB-AM), vestigial sideband modulation (Vestigial Sideband Modulation), amplitude shift modulation (ASK), phase shift modulation (PSK), quadrature amplitude modulation (QAM), frequency shift modulation (FSK), continuous phase modulation (CPM), code division multiple access (CDMA), time division multiple access (TDMA), orthogonal frequency division multiplexing (OFDM), pulse width modulation (PWM) and other technologies. The driving signal may include one or more square waves, sine waves or any modulated waveforms. The driving circuit module 112 may include one or more channels, and each channel may be connected to any one or more touch electrodes through the connection network module 111 .

[0106] The sensing circuit module 113 may include components such as an integrator, a sampler, a clock generator, a frequency divider, a frequency multiplier, a phase-locked loop, a power amplifier, an operational amplifier, a multiplier, a DC-DC voltage converter, a rectifier and / or a filter, and is used to sense any one or more touch electrodes through the above-mentioned connection network module 111 according to the control command of the processor module 114. When the touch signal is sent through the above-mentioned one touch electrode, the other touch electrode can sense the touch signal. The sensing circuit module 113 can cooperate with the modulation method performed by the above-mentioned driving circuit module 112 to perform corresponding demodulation on the driving signal sensed by the other touch electrode, so as to restore the information carried by the driving signal. The sensing circuit module 113 may include one or more channels, each of which can be connected to any one or more touch electrodes through the connection network module 111. At the same time, each channel can perform sensing and demodulation at the same time.

[0107] In one embodiment, the driving circuit module 112 and the sensing circuit module 113 may include an analog front-end (AFE) circuit. In another embodiment, in addition to the analog front-end circuit, the driving circuit module 112 and the sensing circuit module 113 may include a digital back-end (DBE) circuit. When the driving circuit module 112 and the sensing circuit module 113 only include the analog front-end circuit, the digital back-end circuit may be implemented in the processor module 114.

[0108] The processor module 114 may include a digital signal processor, which is used to connect the analog front-end circuits of the driving circuit module 112 and the sensing circuit module 113, and may also connect the digital back-end circuits of the driving circuit module 112 and the sensing circuit module 113. The processor module 114 may include an embedded processor, a non-volatile memory, and a volatile memory. The non-volatile memory may store a common operating system or a real-time operating system, and an application program executed under the operating system. The aforementioned operating system and application program include a plurality of instructions and data, which can be used to control other modules of the touch processing device 110, including the network connection module 111, the driving circuit module 112, the sensing circuit module 113, and the interface module 115, after the processor (including the embedded processor and / or the digital signal processor) executes these instructions. For example, the processor module 114 may include the 8051 series processor commonly used in the industry, the i960 series processor of Intel, the Cortex-M series processor of ARM, etc. The present application does not limit the type and number of processors included in the processor module 114 .

[0109] The above-mentioned multiple instructions and data can be used to implement the various steps mentioned in this application, as well as the processes and methods composed of these steps. Some instructions can operate independently within the processor module 114, such as arithmetic and logic operations. Other instructions can be used to control other modules of the touch processing device 110, and these instructions can include the input and output interfaces of the processor module 114 to control other modules. Other modules can also provide information to the operating system and / or application executed by the processor module 114 through the input and output interfaces of the processor module 114. Ordinary technicians in this field should have general knowledge of computer structure and architecture, and can understand that the processes and methods mentioned in this application can be implemented by means of the above-mentioned modules and instructions.

[0110] The interface module 115 may include various serial or parallel buses, such as a universal serial bus (USB), an integrated circuit bus (IC bus), or a serial bus. 2 C), PCI, PCI-Express, IEEE 1394 and other industrial standard input / output interfaces. The touch processing device 110 is connected to the host 140 via an interface module 115 .

[0111] The non-volatile memory 116 includes a readable and writable memory, such as an electronically erasable rewritable read-only memory (EEPROM) or a flash memory, which can retain the memory content after power failure. The processor module 114 can load and execute the firmware in the non-volatile memory to implement the touch processing function. The firmware can include a real-time operating system and corresponding instructions and programs required for the operation of the processor module 114. In one embodiment, the programs and data contained in the firmware can be used to enable the touch processing device 110 to implement the embodiments provided in the present application.

[0112] The touch control system 100 may include one or more styluses 130 and / or touchpad erasers 135. The stylus 130 or touchpad eraser 135 may be a transmitter that emits an electrical signal, and may include an active transmitter that actively emits an electrical signal, or a passive transmitter that passively emits an electrical signal, or a reactive transmitter that emits an electrical signal in response to an external electrical signal. The stylus 130 or touchpad eraser 135 may include one or more electrodes for synchronously or asynchronously receiving an electrical signal from the touch screen 120, or for synchronously or asynchronously transmitting an electrical signal to the touch screen 120. These electrical signals may be modulated in one or more of the above-described ways.

[0113] The stylus pen 130 or the touchpad eraser 135 may be a conductor for conducting a driving signal or grounding through the user's hand or body. The stylus pen 130 or the touchpad eraser 135 may be connected to the input / output interface module 141 of the host 140 or other modules under the input / output interface module 141 in a wired or wireless manner.

[0114] The touch processing device 110 can detect one or more external conductive objects, such as human fingers, palms, or passive stylus 130 or touchpad eraser 135, through the touch screen 120, and can also detect the stylus 130 or touchpad eraser 135 that emits electrical signals. The touch processing device 110 can use mutual-capacitance or self-capacitance to detect external conductive objects. The above-mentioned stylus 130 or touchpad eraser 135 and the touch processing device 110 can use the above-mentioned signal modulation and corresponding signal demodulation methods to use electrical signals to transmit information. The touch processing device 110 can use electrical signals to detect one or more proximity positions of the stylus 130 or the touchpad eraser 135 approaching or contacting the touch screen 120, the sensor status (such as a pressure sensor or button) on the stylus 130 or the touchpad eraser 135, the direction of the stylus 130 or the touchpad eraser 135, or the tilt angle of the stylus 130 or the touchpad eraser 135 relative to the plane of the touch screen 120.

[0115] The host 140 is the main device for controlling the touch control system 110, and may include an input / output interface module 141 connected to the interface module 115, a central processing unit module 142, a graphics processing unit module 143, a memory module 144 connected to the central processing unit module 142, a network interface module 145 connected to the input / output interface module 141, and a storage module 146.

[0116] The memory module 146 includes a non-volatile memory, common examples of which are a hard disk, an electronically erasable programmable read-only memory (EEPROM), or a flash memory. The memory module 146 can store a common operating system and application programs executed under the operating system. The network interface module 145 can include a hardware network connection interface for wired connection and / or wireless connection. The network interface module 145 can comply with common industrial standards, such as the IEEE 802.11 wireless local area network standard, the IEEE 802.3 wired local area network standard, 3G, 4G, and / or 5G wireless communication network standards, Bluetooth wireless communication network standards, etc.

[0117] The central processing unit module 142 can be directly or indirectly connected to the above-mentioned input / output interface module 141, graphics processor module 143, memory module 144, network interface module 145 and storage module 146. The central processing unit module 142 can include one or more processors or processor cores. Common processors can include processors of x86 and x64 instruction sets from Intel, AMD, and VIA, or processors of ARM instruction sets from Apple, Qualcomm, and MediaTek, and can also include other forms of complex computer instruction sets (CISC) or reduced computer instruction sets (RISC) processors. The aforementioned operating system and application programs include multiple instructions and data corresponding to the above-mentioned instruction sets, which can be used to control other modules of the touch control system 100 after being executed by the central processing unit module 142.

[0118] The optional graphics processor module 143 is generally used to process the calculation part related to the graphics output. The graphics processor module 143 can be connected to the above-mentioned touch screen 120 to control the output of the touch screen 120. In some applications, the host 140 may not need the special processing of the graphics processor module 143, and can directly let the central processing unit module 142 perform the calculation part related to the graphics output.

[0119] The host 140 may also include other Figure 1 Components or parts not shown, such as sound input / output interface, keyboard input interface, mouse input interface, trackball input interface and / or other hardware modules. A person skilled in the art should have general knowledge of computer structure and architecture, and can understand that the touch control system 100 mentioned in the present application is only for illustration, and the rest of the parts related to the technical features of the invention provided in the present application need to refer to the specification and claims.

[0120] In the mutual capacitance detection method, the driving circuit module 112 provides a driving signal to one of the multiple first electrodes 121 in a time-sharing manner. When providing the driving signal, the sensing circuit module 113 is caused to sense all the second electrodes 122 multiple times at the same time in order to obtain multiple sets of one-dimensional array sensing information. Each set of one-dimensional array contains the sensing results for each second electrode 122. And these multiple sets of one-dimensional sensing information can form a two-dimensional array sensing information or sensing image according to the order of the first electrodes 121 that send the driving signal. Using the two-dimensional array or sensing image, the processor module 114 can detect whether there is an external conductive object close to the touch screen 120.

[0121] The stylus 130 is an active stylus, and its general shape is a pen shape for a person to hold, or a long rod shape. The stylus 130 has two corresponding ends. In the present application, the shape of the first end is relatively sharp, and the shape of the second end is thicker than the shape of the first end. The first end can be called the pen tip end, and the second end can be called the pen tail end.

[0122] Please refer to Figure 2 As shown, it is a block diagram of a stylus 130 according to an embodiment of the present application. The tip end of the stylus 130 may include one or more tip electrodes 240, and the tail end may also include one or more tail electrodes 250. The tip electrode 240 and the tail electrode 250 may be collectively referred to as a stylus electrode. The stylus electrode is connected to the processing circuit of the stylus 130. After the stylus electrode receives the beacon signal sent by the touch electrode of the touch panel or screen 120, the processing circuit may also send an electrical signal to the touch electrode of the touch panel or screen 120 through the stylus electrode, so that the touch processing device 110 of the touch panel or screen 120 analyzes the electrical signal and knows the position where the stylus 130 approaches or contacts the touch panel or screen 120. Furthermore, the touch processing device 110 may also know whether the stylus 130 approaches the touch panel or screen 120 from the first end (tip end) or the second end (tail end). When there are multiple pen tip electrodes 240, such as a pen tip electrode 241 and one or more ring electrodes 242 behind the pen tip electrode 241, the touch processing device 110 can know the direction of the stylus 130 projected on the touch panel or screen 120 and the angle between the stylus 130 and the plane of the touch panel or screen 120, or the tilt angle, based on the multiple positions of the multiple pen tip electrodes 240.

[0123] like Figure 2As shown, the stylus 130 includes a connection network 210, a driving circuit 220, a sensing circuit 230, and a processor or control circuit 260. The connection network 210 can be applicable to various embodiments and variations of the connection network 111 of the touch processing device 110. The driving circuit 220 can be applicable to various embodiments and variations of the driving circuit module 112 of the touch processing device 110. The sensing circuit 230 can be applicable to various embodiments and variations of the sensing circuit module 113 of the touch processing device 110. The processor or control circuit 260 can be applicable to various embodiments and variations of the processor module 114 of the touch processing device 110.

[0124] The stylus pen 130 also includes a Figure 2 A battery and a power distribution module are provided to supply power to the operation of the above-mentioned components. The above-mentioned battery can be a rechargeable battery, a disposable battery, a capacitor, or a super fast charging capacitor. When the battery is a rechargeable battery or a capacitor, the stylus 130 can include a charging circuit. Since the volume and weight of the stylus 130 are limited, the capacity of the battery is limited. Therefore, the circuit complexity of the stylus 130 should be reduced as much as possible to reduce the power consumption of the stylus 130 and increase the usage time. At the same time, the shock resistance and drop resistance of the stylus 130 can also be increased, thereby reducing the cost of the stylus 130.

[0125] In one embodiment, the sensing circuit 230 may only include components of a single channel. In other words, the sensing circuit 230 can only receive a single signal source at the same time, and determine whether the received signal is a beacon signal or a drive signal for synchronization. In this embodiment, the user can bring the tip or tail end of the pen close to the touch panel or screen 120, so the processor or control circuit 260 can enable the connection network 210 to connect each stylus electrode to the sensing circuit 230. In this way, whether the tip or tail end of the pen is close to the touch panel or screen 120, the sensing circuit 230 can sense the beacon signal or drive signal for synchronization.

[0126] In one embodiment, the driving circuit 220 may only include components of a single channel. In other words, the driving circuit 220 will only send out an electrical signal or driving signal of one modulation mode at the same time. In this embodiment, the user can bring the pen tip or the pen tail close to the touch panel or screen 120, so the processor or control circuit 260 can make the connection network 210 connect each stylus electrode to the driving circuit 220 in turn after the sensing circuit 230 receives the beacon signal or driving signal for synchronization. In this way, whether the pen tip or the pen tail is close to the touch panel or screen 120, the driving circuit 220 can send out electrical signals through each stylus electrode in turn. The touch processing device 110 can receive the above electrical signals and further obtain information such as the proximity position, the pen tip proximity or the pen tail proximity pen touch end information, the pressure on the pen tip, the stylus projection axis, and the stylus tilt angle.

[0127] In one embodiment, the processor or control circuit 260 may include a processor for executing instructions stored in a non-volatile memory to implement various embodiments provided in the present application. In another embodiment, the processor or control circuit 260 may not include a processor, but only include a customized control logic circuit, which can also be used to implement various embodiments provided in the present application. In other embodiments, a processor such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA) may be included to implement customized control logic or algorithms.

[0128] Please refer to Figure 3 As shown, it is a timing diagram of a stylus signal cycle 300 according to an embodiment of the present application. Figure 3 The stylus signal cycle 300 shown includes a beacon signal period 310, a pen tail signal period 320 and a pen tip signal period 330 following the beacon signal period 310. Figure 3 In the embodiment shown, the pen tail signal period 320 is before the pen tip signal period 330, but the present application does not limit the order of the pen tail signal period 320 and the pen tip signal period 330, and it only needs to be after the lighthouse signal period 310. In one embodiment, because the driving circuit 220 may only include components of a single channel, there may be no turnaround or guard time period between the pen tail signal period 320 and the pen tip signal period 330.

[0129] Before the beacon signal period 310, the beginning of the stylus signal cycle 300 may include a first isolation period 305. The end of the stylus signal cycle 300 may include a third isolation period 335. In one embodiment, when there are multiple consecutive stylus signal cycles 300, the third isolation period 335 of the previous stylus signal cycle 300 will be connected to the first isolation period 305 of the next stylus signal cycle 300 to form a continuous isolation period to separate two stylus signal cycles 300. In another embodiment, when the stylus signal cycle 300 may be preceded and followed by a normal finger touch cycle or an electronic eraser touch cycle, the first isolation period 305 and the third isolation period 335 will be isolated from the normal touch cycle or the electronic eraser touch cycle.

[0130] After the beacon signal period 310 and before the pen tail signal period 320 and the pen tip signal period 330, a second isolation period 315 may be included. The processing circuit of the stylus 130 is used in the second isolation time 315 to determine whether a beacon signal is received during the beacon signal period 310, and to set the connection network 210. The touch processing device 110 may know the lengths of the first isolation period 305, the second isolation period 315, and the third isolation period 335 in advance, so as to perform sensing during the pen tail signal period 320 and the pen tip signal period 330 after the beacon signal or the driving signal is sent during the beacon signal period 310.

[0131] In one embodiment, the pen tail signal and the pen tip signal emitted by the driving circuit 220 may be pulse width modulation (PWM) signals of different duty cycles or electrical signals of different frequencies. In this embodiment, the pulse strengths of the pen tail signal and the pen tip signal may be the same. In another embodiment, the pen tail signal and the pen tip signal emitted by the driving circuit 220 may be pulse width modulation signals of the same duty cycle or electrical signals of the same frequency. The touch processing device 110 may determine whether the pen tail end or the pen tip end is close to the touch panel or screen 120 based on the accumulated total signal strength of the pen tail signal and the pen tip signal. For example, when the signal strength of the pen tail signal is much greater than that of the pen tip signal, it can be determined that the pen tail end is close to the touch panel or screen 120.

[0132] In this embodiment, the sensing circuit 230 only includes a single-channel receiving circuit, and the driving circuit 220 also only includes a single-channel circuit, which sends out electrical signals at different times, so that within a stylus signal cycle 300, the touch processing device 110 can receive the above-mentioned electrical signal and further obtain the proximity position and pen touch end information.

[0133] In another embodiment, the pen tip may include a force sensing element and a fixed impedance element. The impedance of the force sensing element may reflect the degree of pressure applied to the pen tip, such as a force sensing capacitor or a force sensing resistor. The drive circuit 220 may provide a first signal of a first frequency or a first working cycle, and a second signal of a second frequency or a second working cycle. The first signal may be transmitted to the pen tip electrode 240 through the fixed impedance element, and the second signal may be transmitted to the pen tip electrode 240 through the force sensing element. By using the ratio of the two frequencies or the two working cycles within the pen tip signal period 330, the touch processing device 110 may receive the electrical signal emitted from the pen tip electrode 240, and further obtain the pressure information applied to the pen tip.

[0134] Please refer to Figure 4 , which is a timing diagram of a stylus signal cycle 300 according to another embodiment of the present application. Figure 3 The difference compared to the embodiment shown is that Figure 4 The pen tip signal period 430 shown can be divided into a plurality of pen tip signal periods, such as a first pen tip signal period 431, a second pen tip signal period 432, and a third pen tip signal period 433. It can be understood by those skilled in the art that although Figure 4 Three stylus signal periods are shown, but two or more stylus signal periods may also be included.

[0135] In one embodiment, the plurality of pen tip signal periods and the pen tail signal period 320 may not include any turnaround or guard time period. The present application does not limit the order of the pen tail signal period 320 and the plurality of pen tip signal periods, as long as they are after the lighthouse signal period 310.

[0136] During the first pen tip signal period 431, the driving circuit 220 can send out the first signal with the first modulation (first frequency or first duty cycle). The first signal is sent out through the pen tip electrode 241 via the above-mentioned fixed element. During the second pen tip signal period 432, the driving circuit 220 can send out the second signal with the second modulation (second frequency or second duty cycle). The second signal is sent out through the pen tip electrode 241 via the above-mentioned force sensing element. By the ratio of the signal strengths of the two modulations (frequencies or two duty cycles) during the first pen tip signal period 431 and the second pen tip signal period 4322, the touch processing device 110 can obtain the pressure information of the force sensing element at the pen tip end. Therefore, within a period, the driving circuit 220 can only output a modulation signal with one frequency or duty cycle, so as to reduce the complexity of the driving circuit 220.

[0137] In the third pen tip signal period 433, the driving circuit 220 can send an electrical signal through one or more annular electrodes 242 at the pen tip end. By means of the two proximity positions of the pen tip electrode 241 and the annular electrode 242, the touch control processing device 110 can determine information such as the stylus projection axis and the stylus tilt angle. Since the electrical signal strength of one of the multiple pen tip signal periods (e.g., the first pen tip signal period) or a combination thereof, as well as the electrical signal strength of the pen tail signal 320 can be calculated, the touch control processing device 110 can compare the signal strengths to determine whether the pen tip end is close or the pen tail end is close.

[0138] Please refer to Figure 5 FIG. 5 is a block diagram of a stylus pen processing method 500 according to an embodiment of the present application. The stylus pen processing method 500 may be Figure 1 or Figure 2 The stylus pen processing method 500 is implemented by the stylus pen 130 shown. In one embodiment, the processor 260 can execute multiple instructions stored in the non-volatile memory to implement the stylus pen processing method 500. If any two steps have no direct or indirect causal relationship, the present application does not limit their order. The stylus pen processing method 500 can start from step 510.

[0139] Step 510: Instruct the connection network 210 to simultaneously connect the sensing circuit 230 to the pen tip electrode 240 and the pen tail electrode 250. Step 510 may occur before the lighthouse signal period 310, that is, during the first interval period 305. When the stylus 130 has a plurality of pen tip electrodes 240, such as a pen tip electrode 241 and a plurality of ring electrodes 242, step 510 may connect all or part of the pen tip electrodes 240 to the sensing circuit 230.

[0140] Step 520: Allow the sensing circuit 230 to sense the beacon signal or driving signal sent from the touch electrodes of the touch panel or screen 120. Step 520 may be performed during the beacon signal period 310. In one embodiment, the beacon signal or driving signal has a specific modulation method, and the sensing circuit 230 may detect the specific modulated signal to avoid interference.

[0141] Step 530: Determine whether a beacon signal or a driving signal is sensed in step 520. When a beacon signal or a driving signal is sensed, the process proceeds to step 540. When no beacon signal or a driving signal is sensed, the process may return to step 510. Step 530 may be performed during the second interval 315.

[0142] Step 540 : Instruct the connection network 210 to connect the driving circuit 220 to the pen tail electrode 250 . Next, the process may execute step 545 .

[0143] Step 545 : Instruct the driving circuit 220 to issue a pen end signal within the pen end signal period 320 .

[0144] Step 550 : Instruct the connection network 210 to connect the driving circuit 220 to the pen tip electrode 240 . Next, the process may execute step 555 .

[0145] Step 555: Instruct the driving circuit 220 to send out the pen tip signal within the pen tip signal period 330. After executing step 555, the process can return to step 510.

[0146] In one embodiment, the pen tip signal period 330 may include a plurality of pen tip signal periods, such as Figure 4 In the illustrated embodiment, the driving circuit 220 can connect to different pen tip electrodes via the connection network 210 during the plurality of pen tip signal periods and send out different pen tip signals.

[0147] Please refer to Figure 6 As shown, it is a schematic diagram of a user holding the stylus 130 . Figure 6 A portion of the hand 699 shown touches the pen tail electrode 250 of the stylus 130, and another portion touches the pen tip electrode 240 of the stylus 130. Since in the above step 540, the connection network 210 connects the driving circuit 220 to the pen tail electrode 250. Therefore, during the pen tail signal period 320, the pen tail signal is sent from the pen tail electrode 250, passes through the hand 699, and then is transmitted to the touch panel or screen 120 through the pen tip electrode 240. In this way, although the user brings the pen tip electrode 240 close to the touch panel or screen 120, the touch processing device 110 will receive the pen tail signal during the pen tail signal period 320. Similarly, if the user brings the pen tail electrode 250 close to the touch panel or screen 120, the touch processing device 110 will receive the pen tip signal during the pen tip signal period 330. Therefore, the touch processing device 110 can determine that the pen tail end or pen tip end corresponding to the pen tail signal or pen tip signal with greater signal strength is closer to the touch panel or screen 120 according to the signal strength of the received pen tail signal and pen tip signal.

[0148] Please refer to Figure 7 FIG. 7 is a flow chart of a stylus sensing method 700 according to an embodiment of the present application. The stylus sensing method 700 may be applicable to Figure 1 The touch control system 100 shown in FIG. 1 can sense multiple styluses 130. In one embodiment, the stylus sensing method 700 can be implemented as follows: Figure 1The firmware stored in the non-volatile memory 116 shown includes multiple instructions and data. The processor module 114 can execute multiple instructions contained in the above firmware to implement the stylus sensing method 700. In one embodiment, when the modulation method of one or more pen tip signals and pen tail signals emitted by the stylus 130 is different from the driving signal emitted by the touch processing device 110, the stylus sensing method 700 can be performed simultaneously with the sensing method for sensing external conductive objects (such as fingers and passive styluses). If there is no direct or indirect causal relationship between any two steps, the present application does not limit the execution order of the two steps. The stylus sensing method 700 can start from step 710.

[0149] Step 710: Select one of the plurality of first electrodes 121. This step is used to sequentially or randomly select a first electrode 121 that has not yet issued an overdrive signal. In another embodiment, it can be used to select a group of first electrodes 121 that have not yet issued an overdrive signal, the group comprising a plurality of adjacent first electrodes 121. A person of ordinary skill in the art can understand that when using an embodiment of a group of first electrodes, the accuracy of detection will be reduced, but the embodiments provided in this application can still be applied.

[0150] Step 720: Execute a one-dimensional stylus sensing method according to the selected first electrode 121 to obtain one or more one-dimensional sensing information, that is, one or more single-dimensional arrays. Each element of the one-dimensional sensing information corresponds to one of the plurality of second electrodes 122. When the stylus 130 approaches the touch panel or screen 120, one-dimensional pen tail signal sensing information can be obtained during the pen tail signal period 320, and one-dimensional pen tip signal sensing information can be obtained during the pen tip signal period 330. When applicable Figure 4 In the embodiment shown, one-dimensional pen tip signal sensing information can be obtained during multiple pen tip signal periods.

[0151] Please refer to Fig.10 , which is a schematic diagram of sensing information according to an embodiment of the present application. Fig.10 Multiple sets of sensing information 1010 are shown, each set of sensing information 1010 may include one-dimensional pen end signal sensing information 1011, one-dimensional first pen tip signal sensing information 1012, one-dimensional second pen tip signal sensing information 1013, and one-dimensional third pen tip signal sensing information 1014. Each set of sensing information 1010 corresponds to a first electrode 121 selected in step 710. Step 720 may obtain a set of sensing information 1010 or one of the multiple sets of sensing arrays it contains.

[0152] Step 730 : Determine whether the selection of the plurality of first electrodes 121 is complete. When there is no first electrode 121 for which the one-dimensional stylus sensing method has not been executed, the process proceeds to step 740 . Otherwise, the process returns to step 710 .

[0153] Step 740: According to the relative positions of the first electrodes 121 corresponding to the one or more one-dimensional sensing information, the one or more one-dimensional sensing information are respectively combined into one or more sensing images or two-dimensional sensing information. Fig.10 For the embodiment shown, the one-dimensional pen tip signal sensing information 1011 of each set of sensing information 1010 can be combined into a pen tip signal sensing image 1021 according to the position of the first electrode 121 corresponding thereto. Similarly, the one-dimensional first pen tip signal sensing information 1012 of each set of sensing information 1010 can be combined into a first pen tip signal sensing image according to the position of the first electrode 121 corresponding thereto. The one-dimensional second pen tip signal sensing information 1013 of each set of sensing information 1010 can be combined into a second pen tip signal sensing image according to the position of the first electrode 121 corresponding thereto. The one-dimensional third pen tip signal sensing information 1014 of each set of sensing information 1010 can be combined into a third pen tip signal sensing image according to the position of the first electrode 121 corresponding thereto. For convenience, the first pen tip signal sensing image, the second pen tip signal sensing image and the third pen tip signal sensing image are combined into a pen tip signal sensing image, and each element in the image corresponds to three sensing information, namely, the first pen tip signal sensing information, the second pen tip sensing information and the third pen tip sensing information.

[0154] Step 750: Obtain information about the stylus pen based on the one or more sensing images. In one embodiment, the stylus pen 130 can then be judged as the pen tip electrode 240 or the pen tail electrode 250 approaching the touch panel or screen 120 based on the signal strength of the corresponding elements in the two sensing images. When it is judged that the pen tail electrode 250 is approaching the touch panel or screen 120, the approaching position of the stylus pen 130 can be calculated based on the above-mentioned pen tail signal sensing image. When it is judged that the pen tip electrode 240 is approaching the touch panel or screen 120, the approaching position of the stylus pen 130 can be calculated based on the above-mentioned pen tip signal sensing image.

[0155] In one embodiment, when multiple styluses 130 approach the touch panel or screen 120, and one of them approaches with the pen tip electrode 240 and the other approaches with the pen tail electrode 250, the proximity positions of the two styluses 130 can be found using the pen tip signal sensing image and the pen tail signal sensing image respectively.

[0156] When the stylus 130 has a plurality of pen tip electrodes 240, a plurality of pen tip signal sensing images may be obtained in step 740. Then, based on the signal strength of the corresponding elements in at least one of the pen tip signal sensing images and the pen tail signal sensing image, it may be determined whether the stylus 130 is close to the touch panel or screen 120, namely, the pen tip electrode 240 or the pen tail electrode 250. Then, when it is determined that the pen tip electrode 240 is close to the touch panel or screen 120, one or any combination of information such as the close position of the stylus 130, the pressure applied to the stylus 130, the projection axis of the stylus 130 on the touch panel or screen 120, and the tilt angle between the stylus 130 and the surface of the touch panel or screen 120 may be calculated based on the plurality of pen tip signal sensing images.

[0157] Please refer to Figure 8 FIG. 7 is a flow chart of a one-dimensional stylus sensing method 720 according to an embodiment of the present application. The one-dimensional stylus sensing method 720 can be applied to Figure 1 The touch control system 100 shown in FIG. 1 can sense multiple styluses 130. In one embodiment, the one-dimensional stylus sensing method 720 can be implemented as follows: Figure 1 The firmware stored in the non-volatile memory 116 shown includes multiple instructions and data. The processor module 114 can execute multiple instructions contained in the above firmware to implement the one-dimensional stylus sensing method 720. In one embodiment, when the modulation method of one or more pen tip signals and pen tail signals emitted by the stylus 130 is different from the driving signal emitted by the touch processing device 110, the one-dimensional stylus sensing method 720 can be performed simultaneously with the sensing method for sensing external conductive objects (such as fingers and passive styluses). If there is no direct or indirect causal relationship between any two steps, the present application does not limit the execution order of the two steps. The one-dimensional stylus sensing method 720 can start from step 810, in which a first electrode 121 has been selected.

[0158] Step 810 : Instruct the connection network module 111 to connect the driving circuit module 112 to the selected first electrode 121 .

[0159] Step 820 : Instruct the connection network module 111 to connect the sensing circuit module 113 to the plurality of second electrodes 122 .

[0160] Step 830: Instruct the driving circuit module 112 to issue a driving signal. In this embodiment, the driving signal can be used as Figure 3 or Figure 4 A beacon signal for the illustrated embodiment.

[0161] Step 840: Enable the sensing circuit module 113 to detect the pen end signal sent by the stylus 130 during the pen end signal period 320. As mentioned above, this step can obtain one-dimensional pen end signal sensing information or the pen end signal sensing array 1011.

[0162] Step 850: Instruct the sensing circuit module 113 to detect one or more pen tip signals sent by the stylus 130 during one or more pen tip signal periods. As mentioned above, this step can obtain one or more one-dimensional pen tip signal sensing information or pen tip signal sensing arrays 1012 to 1014. In one embodiment, this step can also obtain one or more one-dimensional external object sensing information or external object sensing arrays for recording sensing information of an external conductive object (finger or passive stylus).

[0163] In one embodiment, the process executes optional steps 860 to 880. When there is only one stylus 130 in the historical track, it can be first determined here whether the pen tip electrode 240 or the pen tail electrode 250 is close to the touch panel or screen 120. When it is determined that the pen tail electrode 250 is close, it is not necessary to record the aforementioned one or more one-dimensional pen tip signal sensing information 1012 to 1014. When it is determined that the pen tip electrode 240 is close, it is not necessary to record the aforementioned one-dimensional pen tail signal sensing information 1011. In another embodiment, steps 860 to 880 may not be executed. That is, all one-dimensional sensing information is left for steps 740 and 750.

[0164] Step 860: Calculate the signal strength of the one or more pen tip signals and the pen tail signal respectively.

[0165] Step 870: Based on the signal strength of one or a combination of the one or more pen tip signals and the pen tail signal strength, determine whether the stylus 130 is in proximity to the touch panel or screen 120 with the pen tip electrode 240 or the pen tail electrode 250 .

[0166] Step 880: Retain one or more one-dimensional sensing information or sensing arrays according to the corresponding pen tip signal or pen tail signal. When it is determined that the stylus 130 is approaching the touch panel or screen 120 with the pen tip, the one-dimensional pen tip signal sensing information or the pen tip signal sensing array 1011 can be retained. When it is determined that the stylus is approaching the touch panel or screen 120 with the pen tip, the one-dimensional pen tip signal sensing information or the pen tip signal sensing array 1012 can be retained. Furthermore, when there are multiple pen tip signal periods, multiple one-dimensional pen tip signal sensing information or pen tip signal sensing arrays 1012 to 1014 can be retained.

[0167] Figure 8 The plurality of sets of sensing information 1010 obtained by the embodiment of the present invention can be Figure 7In step 740, one or more two-dimensional sensing information or sensing images are respectively formed. And in step 750, information of one or more stylus 130 is obtained.

[0168] The stylus sensing method 700 uses the driving signal emitted by each first electrode 121 as a beacon signal. Assuming that the touch panel or screen 120 has N first electrodes 121, N stylus signal cycles 300 are required to detect one or more styluses 130 on the entire panel, where N is a positive integer greater than 1. If you want to detect the stylus 130 in a single stylus signal cycle 300, please refer to Fig. 9 FIG. 9 is a flow chart of a stylus sensing method 900 according to an embodiment of the present application. The stylus sensing method 900 may be applicable to Figure 1 The touch control system 100 shown in FIG. 1 can sense one stylus 130, or can sense one stylus 130 approaching the touch panel or screen 120 with the tip electrode 240 and another stylus 130 approaching the touch panel or screen 120 with the tail electrode 250. In one embodiment, the stylus sensing method 900 can be implemented as follows: Figure 1 The firmware stored in the non-volatile memory 116 shown includes a plurality of instructions and data. The processor module 114 can execute the plurality of instructions included in the firmware to implement the stylus sensing method 900. In one embodiment, if there is no direct or indirect causal relationship between any two steps, the present application does not limit the execution order of the two steps. The stylus sensing method 900 can start from step 910.

[0169] Step 910: Instruct the connection network module 111 to connect the driving circuit module 112 to the plurality of first electrodes 121. In another embodiment, the connection network module 111 may connect the driving circuit module 112 to the plurality of first electrodes 121 and the plurality of second electrodes 122.

[0170] Step 920 : Instruct the driving circuit module 112 to send out a beacon signal. Accordingly, the beacon signal is at least sent from the plurality of first electrodes 121 to the nearby stylus 130 .

[0171] Step 930 : Instruct the connection network module 111 to connect the sensing circuit module 113 to the plurality of first electrodes 121 and the plurality of second electrodes 122 .

[0172] Step 940 : Instruct the sensing circuit module 113 to detect the pen tail signal during the pen tail signal period 310 , and obtain a first-axis pen tail signal sensing array from the sensing results of the plurality of second electrodes 122 , and obtain a second-axis pen tail signal sensing array from the sensing results of the plurality of first electrodes 121 .

[0173] Please refer to Fig.11 , which is a schematic diagram of a two-axis sensing array according to an embodiment of the present application. Step 940 can obtain a first-axis pen end signal sensing array 1111 and a second-axis pen end signal sensing array 1121.

[0174] Step 950: Enable the sensing circuit module 113 to detect the pen tip signal in one or more pen tip signal periods respectively, so as to obtain one or more first-axis pen tip signal sensing arrays 1112 from the sensing results of the above-mentioned multiple second electrodes 122, and obtain one or more second-axis pen tip signal sensing arrays 1122 from the sensing results of the above-mentioned multiple first electrodes 121.

[0175] like Fig.11 As shown, step 950 can obtain the first axis first pen tip signal sensing array 1112, and the second axis first pen tip signal sensing array 1122. In addition, step 950 can obtain the first axis second pen tip signal sensing array 1113, and the second axis second pen tip signal sensing array 1123. Step 950 can also obtain the first axis third pen tip signal sensing array 1114, and the second axis third pen tip signal sensing array 1124.

[0176] In one embodiment, the first-axis first pen tip signal sensing array 1112, the first-axis second pen tip signal sensing array 1113, and the first-axis third pen tip signal sensing array 1114 are collectively referred to as the first-axis pen tip sensing information. Each element thereof corresponds to three pen tip signal sensing information, namely, the first pen tip signal sensing information, the second pen tip signal sensing information, and the third pen tip signal sensing information. Similarly, the second-axis first pen tip signal sensing array 1122, the second-axis second pen tip signal sensing array 1123, and the second-axis third pen tip signal sensing array 1124 are collectively referred to as the second-axis pen tip sensing information. Each element thereof corresponds to three pen tip signal sensing information, namely, the first pen tip signal sensing information, the second pen tip signal sensing information, and the third pen tip signal sensing information. The first-axis pen tip sensing information and the optional first-axis pen tail signal sensing array are collectively referred to as the first-axis sensing information 1110. The second-axis pen tip sensing information and the optional second-axis pen tail signal sensing array are collectively referred to as the second-axis sensing information 1120.

[0177] Step 960: Determine the pen tip information of the stylus 130 approaching the touch panel or screen 120 with the pen tip electrode 240 or the pen tail electrode 250 according to the signal strength of the corresponding elements of one of the one or more first-axis pen tip signal sensing arrays and the first-axis pen tail signal sensing array. Similarly, step 960 can also determine the pen tip information of the stylus 130 according to the signal strength of the corresponding elements of one of the one or more second-axis pen tip signal sensing arrays and the second-axis pen tail signal sensing array.

[0178] In one embodiment, when the pen tip signal strength and the pen tail signal strength of a pair of elements are both lower than a critical value, no judgment is required. In another embodiment, the pen tip information of the corresponding stylus 130 approaching the touch panel or screen 120 with the pen tip electrode 240 or the pen tail electrode 250 can be judged based on the maximum and minimum of multiple differences between the pen tip signal strength and the pen tail signal strength of all pairs of elements. For example, when the first stylus 130 approaches the touch panel or screen 120 with the pen tip electrode 240, the difference between the pair of elements of the first axis pen tip signal sensing array and the first axis pen tail signal sensing array at the corresponding position will be the maximum difference. When the second stylus 130 approaches the touch panel or screen 120 with the pen tail electrode 250, the difference between the pair of elements of the first axis pen tip signal sensing array and the first axis pen tail signal sensing array at the corresponding position will be the minimum difference, which is also a negative value.

[0179] When the aforementioned maximum difference exceeds a critical value and the minimum difference is not less than another critical value, it indicates that a stylus 130 is approaching the touch panel or screen 120 using the tip electrode 240. When the aforementioned minimum difference is less than another critical value and the maximum difference does not exceed the critical value, it indicates that another stylus 130 is approaching the touch panel or screen 120 using the tail electrode 250. When the aforementioned maximum difference exceeds the critical value and the minimum difference is less than another critical value, it indicates that a first stylus 130 is approaching the touch panel or screen 120 using the tip electrode 240 and another second stylus 130 is approaching the touch panel or screen 120 using the tail electrode 250.

[0180] Step 970: Obtain information of the stylus 130 according to one or more corresponding first-axis and second-axis pen tip signal sensing arrays or pen tail signal sensing arrays. According to a single first-axis pen tip signal sensing array (e.g., 1112), the proximity position of the pen tip electrode 240 on the first axis can be obtained. Alternatively, according to multiple first-axis pen tip signal sensing arrays (e.g., 1112 and 1114), two proximity positions of the pen tip electrode 241 and the ring electrode 242 on the first axis can be obtained. Similarly, according to a single second-axis pen tip signal sensing array (e.g., 1122), the proximity position of the pen tip electrode 240 on the second axis can be obtained. Alternatively, according to multiple second-axis pen tip signal sensing arrays (e.g., 1122 and 1124), two proximity positions of the pen tip electrode 241 and the ring electrode 242 on the second axis can be obtained.

[0181] The approach position of the stylus pen 130 can be obtained according to the first axis approach position and the second axis approach position of the pen tip electrode 240. The approach position of the pen tip electrode 241 of the stylus pen 130 can be obtained according to the first axis approach position and the second axis approach position of the pen tip electrode 241. The approach position of the ring electrode 242 of the stylus pen 130 can be obtained according to the first axis approach position and the second axis approach position of the ring electrode 242. The projection axis can be calculated according to the approach position of the pen tip electrode 241 and the approach position of the ring electrode 242. When the configuration of the pen tip electrode 241 and the ring electrode 242 is known, the tilt angle can be calculated according to the approach position of the pen tip electrode 241 and the approach position of the ring electrode 242.

[0182] Similarly, the proximity position of the pen tail electrode 250 in the first axis can be obtained according to the first-axis pen tail signal sensing array 1111. The proximity position of the pen tail electrode 250 in the second axis can be obtained according to the second-axis pen tail signal sensing array 1121. According to the first-axis proximity position and the second-axis proximity position of the pen tail electrode 250, the proximity position of the pen tail electrode 250 of the stylus 130 can be obtained.

[0183] When it is known in step 960 that there is only one stylus 130, calculation can be performed only for the tip electrode 240 or the tail electrode 250 of the stylus 130, without calculating both the tip and the tail. This can save computing resources, power, and increase the speed of reporting points.

[0184] According to one embodiment of the present application, a processing circuit for an active stylus is provided, comprising: a driving circuit for emitting an electrical signal; a sensing circuit for sensing a lighthouse signal; a connection network for respectively connecting a pen tip electrode and a pen tail electrode located at two ends of the active stylus; and a control circuit for: allowing the connection network to simultaneously connect the sensing circuit to the pen tip electrode and the pen tail electrode, and allowing the sensing circuit to detect the lighthouse signal during the lighthouse signal period; and after the sensing circuit detects the lighthouse signal, performing the following steps: allowing the connection network to connect the driving circuit to the pen tail electrode, and allowing the driving circuit to emit a pen tail signal during the pen tail signal period after the lighthouse signal period; and allowing the connection network to connect the driving circuit to the pen tip electrode, and allowing the driving circuit to emit a pen tip signal during the pen tip signal period after the lighthouse signal period.

[0185] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the above-mentioned sensing circuit only includes components of a single channel, which are used to simultaneously detect the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0186] Preferably, in order to provide information about the pen tip pressure to the touch processing device, the active stylus further includes a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes with the force applied to the pen tip electrode, and the first pen tip signal after the first modulation provided by the driving circuit is transmitted through the fixed impedance element to the pen tip electrode, and the second pen tip signal after the second modulation provided by the driving circuit is transmitted through the variable force impedance element to the pen tip electrode.

[0187] Preferably, in order to save costs, resist drops, shocks, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0188] Preferably, in order to provide additional information to the touch processing device, the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the pen tip end of the active stylus, wherein the above-mentioned driving circuit provides a first pen tip signal after a first modulation to the pen tip electrode, and the driving circuit provides a third pen tip signal after a third modulation to the one or more ring electrodes.

[0189] Preferably, in order to save cost, resist falling, resist shock, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0190] Preferably, in order to facilitate adjustment, the processing circuit includes a processor for executing a plurality of instructions stored in a non-volatile memory to implement the control circuit.

[0191] According to an embodiment of the present application, an active stylus is provided, comprising the pen tip electrode, the pen tail electrode and the processing circuit as described above.

[0192] According to one embodiment of the present application, a processing method for an active stylus is provided, wherein the active control pen includes a tip electrode and a tail electrode located at two ends of the active stylus, and the processing method for the active stylus includes: allowing the connection network of the active stylus to simultaneously connect the sensing circuit of the active stylus to the tip electrode and the tail electrode, and allowing the sensing circuit to detect the lighthouse signal during the lighthouse signal period; and after the sensing circuit detects the lighthouse signal, performing the following steps: allowing the connection network to connect the driving circuit of the active stylus to the tail electrode, and allowing the driving circuit to emit a tail signal during the tail signal period after the lighthouse signal period; and allowing the connection network to connect the driving circuit to the tip electrode, and allowing the driving circuit to emit a tip signal during the tip signal period after the lighthouse signal period.

[0193] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the above-mentioned sensing circuit only includes components of a single channel, which are used to simultaneously detect the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0194] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the active stylus further includes a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes with the force applied to the pen tip electrode. The processing method of the active stylus further includes: allowing the first pen tip signal after the first modulation provided by the driving circuit to pass through the fixed impedance element to the pen tip electrode; and allowing the second pen tip signal after the second modulation provided by the driving circuit to pass through the force sensing element to the pen tip electrode.

[0195] Preferably, in order to save costs, resist drops, shocks, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0196] Preferably, in order to provide additional information to the touch processing device, the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip of the active stylus, wherein the above-mentioned active stylus processing method further includes: allowing the driving circuit to provide a first pen tip signal after a first modulation to the pen tip electrode, and the driving circuit to provide a third pen tip signal after a third modulation to the one or more ring electrodes.

[0197] Preferably, in order to save cost, resist falling, resist shock, and save power, the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and the driving circuit provides the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0198] According to an embodiment of the present application, a touch processing device suitable for a touch panel is provided. The touch panel includes a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis. The touch processing device includes: a connection network module, used to connect the plurality of first electrodes and the plurality of second electrodes respectively; a drive circuit module, used to provide a drive signal; a sensing circuit module, used to sense the signal; and a processor module, used to execute a plurality of instructions in a non-volatile memory to implement: selecting one of the plurality of first electrodes in turn and performing the following steps; causing the connection network module to connect the drive circuit module to the selected first electrode; causing the connection network module to connect the drive circuit module to the selected first electrode; The sensing circuit module is connected to the plurality of second electrodes; the driving circuit module sends out a driving signal; the sensing circuit module detects the pen tail signal during the pen tail signal period to obtain one-dimensional pen tail signal sensing information; and the sensing circuit module detects the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; all the above-mentioned one-dimensional pen tail signal sensing information are combined into a pen tail signal sensing image; all the above-mentioned one-dimensional pen tip signal sensing information are combined into a pen tip signal sensing image; and according to the pen tail signal sensing image and the pen tip signal sensing image, the proximity position of the active stylus and the pen tip information of the pen tip end or the pen tail end being close to the touch panel are calculated.

[0199] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0200] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the processor module is further used to calculate the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0201] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0202] Preferably, in order to provide additional active stylus information to the touch processing device, the stylus tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus tip end of the active stylus, wherein the one-dimensional stylus tip signal sensing information includes sensing information of a first stylus tip signal and a third stylus tip signal, the first stylus tip signal comes from the stylus tip electrode, and the third stylus tip signal comes from the one or more ring electrodes, the processor module is further used to: calculate two proximity positions of the stylus tip electrode and the one or more ring electrodes based on the stylus tip signal sensing image; calculate the projection axis of the active stylus based on the two proximity positions; and calculate the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the stylus tip electrode and the one or more ring electrodes.

[0203] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0204] According to an embodiment of the present application, a touch processing method for a touch processing device applicable to a touch panel is provided. The touch panel includes a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis. The touch processing method includes: selecting one of the plurality of first electrodes in turn and performing the following steps: enabling a connection network module of the touch processing device to connect a driving circuit module of the touch processing device to the selected first electrode; enabling the connection network module to connect a sensing circuit module of the touch processing device to the plurality of second electrodes; enabling the driving circuit module to send a driving signal to the driving circuit module; signal; allowing the sensing circuit module to detect the pen tail signal during the pen tail signal period to obtain one-dimensional pen tail signal sensing information; and allowing the sensing circuit module to detect the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; all of the above-mentioned one-dimensional pen tail signal sensing information are combined into a pen tail signal sensing image; all of the above-mentioned one-dimensional pen tip signal sensing information are combined into a pen tip signal sensing image; and according to the pen tail signal sensing image and the pen tip signal sensing image, calculate the proximity position of the active stylus and the pen touch end information of the pen tip end or the pen tail end being close to the touch panel.

[0205] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0206] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0207] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0208] Preferably, in order to provide additional active stylus information to the touch processing device, the stylus tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus tip end of the active stylus, wherein the one-dimensional stylus tip signal sensing information includes sensing information of a first stylus tip signal and a third stylus tip signal, the first stylus tip signal comes from the stylus tip electrode, and the third stylus tip signal comes from the one or more ring electrodes, the touch processing method further includes: calculating two proximity positions of the stylus tip electrode and the one or more ring electrodes based on the stylus tip signal sensing image; calculating the projection axis of the active stylus based on the two proximity positions; and calculating the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the stylus tip electrode and the one or more ring electrodes.

[0209] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0210] According to one embodiment of the present application, a touch processing device suitable for a touch panel is provided, wherein the touch panel comprises a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, and the touch processing device comprises: a connection network module for respectively connecting the plurality of first electrodes and the plurality of second electrodes; a drive circuit module for providing a drive signal; a sensing circuit module for sensing a signal; and a processor module for executing a plurality of instructions in a non-volatile memory to implement: causing the connection network module to connect the drive circuit module to the plurality of first electrodes; causing the drive circuit module to send a beacon signal; causing the connection network module to connect the sensing circuit module to the plurality of first electrodes and the plurality of The second electrode; enables the sensing circuit module to detect the pen tail signal through the multiple second electrodes and the multiple first electrodes respectively during the pen tail signal period to obtain the first-axis pen tail signal sensing information and the second-axis pen tail signal sensing information; enables the sensing circuit module to detect the pen tip signal through the multiple second electrodes and the multiple first electrodes respectively during the pen tip signal period to obtain the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; and calculates the proximity position of the active stylus and the pen touch end information of whether the pen tip or the pen tail end is close to the touch panel according to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information.

[0211] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0212] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the processor module is further used to calculate the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0213] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0214] Preferably, in order to provide additional active stylus information to the touch processing device, the tip electrode of the active stylus includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the above-mentioned first-axis pen tip signal sensing information and second-axis pen tip signal sensing information include sensing information of a first pen tip signal and a third pen tip signal, the first pen tip signal comes from the pen tip electrode, and the third pen tip signal comes from the one or more ring electrodes, the processor module is further used to: calculate two proximity positions of the pen tip electrode and the one or more ring electrodes according to the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; calculate the projection axis of the active stylus according to the two proximity positions; and calculate the tilt angle of the active stylus and the touch panel according to the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

[0215] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0216] According to an embodiment of the present application, a touch processing method for a touch processing device applicable to a touch panel is provided, wherein the touch panel comprises a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, and the touch processing method comprises: allowing a connection network module of the touch processing device to connect a driving circuit module of the touch processing device to the plurality of first electrodes; allowing the driving circuit module to send a beacon signal; allowing the connection network module to connect a sensing circuit module of the touch processing device to the plurality of first electrodes and the plurality of second electrodes; allowing the sensing circuit module to respectively transmit a lighthouse signal to the plurality of first electrodes and the plurality of second electrodes during a pen tail signal period. The second electrode and the multiple first electrodes detect the pen tail signal to obtain the first-axis pen tail signal sensing information and the second-axis pen tail signal sensing information; the sensing circuit module is enabled to detect the pen tip signal through the multiple second electrodes and the multiple first electrodes during the pen tip signal period to obtain the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; according to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information, the proximity position of the active stylus and the pen tip information of the pen tip end or the pen tail end approaching the touch panel.

[0217] Preferably, in order to save costs, resist falling, shock, save power and avoid synchronization problems between the two receiving channels, the pen tail signal period and the pen tip signal period can be closely adjacent to each other without the need for a conversion period, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

[0218] Preferably, in order to provide information on the pen tip pressure to the touch processing device, the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

[0219] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the second pen tip signal during the second pen tip signal period included in the pen tip signal period.

[0220] Preferably, in order to provide additional active stylus information to the touch processing device, the tip electrode of the active stylus includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the above-mentioned first-axis pen tip signal sensing information and second-axis pen tip signal sensing information include sensing information of a first pen tip signal and a third pen tip signal, the first pen tip signal comes from the pen tip electrode, and the third pen tip signal comes from the one or more ring electrodes, the touch processing method further includes: calculating two proximity positions of the pen tip electrode and the one or more ring electrodes based on the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; calculating the projection axis of the active stylus based on the two proximity positions; and calculating the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

[0221] Preferably, in order to save costs, be drop-resistant, shock-resistant, and save power, the driving circuit of the active stylus pen only includes components of a single channel, wherein the above-mentioned sensing circuit module senses the first pen tip signal during the first pen tip signal period included in the pen tip signal period, and senses the third pen tip signal during the third pen tip signal period included in the pen tip signal period.

[0222] According to an embodiment of the present application, a touch control system is provided, comprising the touch control panel and the touch control processing device as described above. Preferably, the touch control system further comprises the active touch pen as described above.

[0223] The active stylus provided in the present application can detect the beacon signal using a single-channel sensing circuit to save costs, be drop-resistant, shock-resistant, and save power without having to determine whether the beacon signal from the touch panel is received by the pen tip electrode or the pen tail electrode. In addition, the active stylus can also use a single-channel driving circuit to send out electrical signals corresponding to the beacon signal in a time-sharing manner, so that the touch processing device of the touch panel can determine the proximity position and pen touch end information of the active stylus based on the signals received during the pen tip and pen tail signal periods after the beacon signal. Using different pen touch end information, the touch system can make different responses. For example, an active stylus with the pen tail end in proximity can indicate the function of wiping. When the active stylus sends electrical signals in multiple pen tip signal periods, it can send information representing pressure, projection axis, tilt angle, etc. to the touch processing device.

[0224] A person skilled in the art can understand that in other examples of the present application, differently modulated tip signals or tail signals can be used to indicate whether one or more buttons on the active stylus are pressed. For example, when a button is pressed, a tail signal can be produced using one modulation method, and when the button is not pressed, the tail signal can be modulated using another method. The sensing circuit module of the touch processing device can know the button status of the active stylus based on the modulation method of the tail signal received during the tail signal period.

[0225] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A processing circuit for an active stylus, comprising: A driving circuit for sending an electrical signal; A sensing circuit, used for sensing a lighthouse signal; A connection network, used to respectively connect the pen head electrode and the pen tail electrode located at two ends of the active stylus; as well as Control circuit for: The connection network simultaneously connects the sensing circuit to the pen tip electrode and the pen tail electrode, and the sensing circuit detects the beacon signal during the beacon signal period; as well as When the sensing circuit detects the beacon signal, the following steps are performed: Allow the connection network to connect the drive circuit and the pen tail electrode, and allow the drive circuit to send a pen tail signal during a pen tail signal period after the lighthouse signal period; and The connection network is configured to connect the driving circuit and the pen tip electrode, and the driving circuit is configured to send out a pen tip signal during a pen tip signal period after the lighthouse signal period.

2. The processing circuit of the active stylus pen as described in claim 1, wherein the above-mentioned sensing circuit only includes components of a single channel, which are used to simultaneously detect the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

3. The processing circuit of the active stylus pen as described in claim 1, wherein the active stylus pen further comprises a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes as the force applied to the stylus tip electrode, the first stylus tip signal after the first modulation provided by the driving circuit is transmitted through the fixed impedance element to the stylus tip electrode, and the second stylus tip signal after the second modulation provided by the driving circuit is transmitted through the force sensing element to the stylus tip electrode.

4. The processing circuit of the active stylus as described in claim 3, wherein the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first stylus signal during the first stylus signal period included in the stylus signal period, and the driving circuit provides the second stylus signal during the second stylus signal period included in the stylus signal period.

5. The processing circuit of the active stylus as described in claim 1, wherein the stylus tip electrode comprises a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus tip end of the active stylus, wherein the above-mentioned driving circuit provides a first stylus tip signal after a first modulation to the pen tip electrode, and the driving circuit provides a third stylus tip signal after a third modulation to the one or more ring electrodes.

6. The processing circuit of the active stylus as described in claim 5, wherein the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first stylus signal during the first stylus signal period included in the stylus signal period, and the driving circuit provides the third stylus signal during the third stylus signal period included in the stylus signal period. 7 . The processing circuit of the active stylus pen as claimed in claim 1 , comprising a processor for executing a plurality of instructions stored in a non-volatile memory to implement the control circuit.

8. An active stylus pen, comprising a tip electrode, a tail electrode and a processing circuit as claimed in any one of claims 1 to 7.

9. A processing method for an active stylus pen, wherein the active control pen comprises a pen head electrode and a pen tail electrode located at two ends of the active stylus pen, and the processing method for the active stylus pen comprises: The connection network of the active stylus simultaneously connects the sensing circuit of the active stylus to the pen head electrode and the pen tail electrode, and the sensing circuit detects the beacon signal during the beacon signal period; as well as When the sensing circuit detects the beacon signal, the following steps are performed: The connection network connects the driving circuit of the active stylus pen and the pen tail electrode, and the driving circuit sends a pen tail signal during the pen tail signal period after the lighthouse signal period; as well as The connection network is configured to connect the driving circuit and the pen tip electrode, and the driving circuit is configured to send out a pen tip signal during a pen tip signal period after the lighthouse signal period.

10. The processing method of the active stylus as described in claim 9, wherein the above-mentioned sensing circuit only includes components of a single channel for simultaneously detecting the lighthouse signal from the pen tip electrode and the pen tail electrode, wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

11. The processing method of the active stylus pen as claimed in claim 9, wherein the active stylus pen further comprises a fixed impedance element and a force sensing element, wherein the impedance of the force sensing element changes with the force applied to the stylus tip electrode, and the processing method of the active stylus pen further comprises: Allowing the first modulated pen tip signal provided by the driving circuit to pass through the fixed impedance element to the pen tip electrode; and The second pen tip signal after the second modulation provided by the driving circuit is transmitted to the pen tip electrode through the force sensing element.

12. The processing method of the active stylus as described in claim 11, wherein the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first stylus signal during the first stylus signal period included in the stylus signal period, and the driving circuit provides the second stylus signal during the second stylus signal period included in the stylus signal period.

13. The processing method of the active stylus as described in claim 9, wherein the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip of the active stylus, wherein the processing method of the active stylus further includes: allowing the driving circuit to provide a first pen tip signal after a first modulation to the pen tip electrode, and the driving circuit to provide a third pen tip signal after a third modulation to the one or more ring electrodes.

14. The processing method of the active stylus as described in claim 13, wherein the above-mentioned driving circuit only includes components of a single channel, and the driving circuit provides the first stylus signal during the first stylus signal period included in the stylus signal period, and the driving circuit provides the third stylus signal during the third stylus signal period included in the stylus signal period.

15. A touch processing device suitable for a touch panel, the touch panel comprising a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, the touch processing device comprising: A connection network module, used for respectively connecting the plurality of first electrodes and the plurality of second electrodes; A driving circuit module, used for providing a driving signal; A sensing circuit module, used for sensing a signal; and A processor module that executes multiple instructions in non-volatile memory to achieve: Selecting one of the plurality of first electrodes in turn and performing the following steps; Instructing the connection network module to connect the driving circuit module to the selected first electrode; Allowing the connection network module to connect the sensing circuit module to the plurality of second electrodes; Instructing the driving circuit module to send a driving signal; The sensing circuit module is enabled to detect the pen end signal during the pen end signal period to obtain one-dimensional pen end signal sensing information; as well as The sensing circuit module is configured to detect the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; All the above one-dimensional pen tail signal sensing information form a pen tail signal sensing image; Combining all the one-dimensional pen tip signal sensing information into a pen tip signal sensing image; and According to the pen tail signal sensing image and the pen head signal sensing image, the proximity position of the active touch pen and the pen touch end information of the pen head end or the pen tail end being close to the touch panel are calculated. 16 . The touch processing device as claimed in claim 15 , wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

17. A touch processing device as described in claim 15, wherein the above-mentioned one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the processor module is further used to calculate the value of the pressure based on the strength of the first pen tip signal and the strength of the second pen tip signal.

18. The touch processing device as claimed in claim 17, wherein the sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the second stylus signal during a second stylus signal period included in the stylus signal period.

19. A touch processing device as described in claim 15, wherein the pen tip electrode includes a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the pen tip end of the active stylus, wherein the above-mentioned one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a third pen tip signal, the first pen tip signal comes from the pen tip electrode, and the third pen tip signal comes from the one or more ring electrodes, and the processor module is further used to: calculate two proximity positions of the pen tip electrode and the one or more ring electrodes based on the pen tip signal sensing image; calculate the projection axis of the active stylus based on the two proximity positions; and calculate the tilt angle of the active stylus and the touch panel based on the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

20. The touch processing device as claimed in claim 19, wherein the sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the third stylus signal during a third stylus signal period included in the stylus signal period.

21. A touch processing method of a touch processing device applicable to a touch panel, the touch panel comprising a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, the touch processing method comprising: Select one of the plurality of first electrodes in turn and perform the following steps: Instructing the connection network module of the touch control processing device to connect the driving circuit module of the touch control processing device to the selected first electrode; Enable the connection network module to connect the sensing circuit module of the touch processing device to the plurality of second electrodes; Instructing the driving circuit module to send a driving signal; The sensing circuit module is enabled to detect the pen end signal during the pen end signal period to obtain one-dimensional pen end signal sensing information; as well as The sensing circuit module is configured to detect the pen tip signal during the pen tip signal period to obtain one-dimensional pen tip signal sensing information; All the above one-dimensional pen tail signal sensing information form a pen tail signal sensing image; Combining all the one-dimensional pen tip signal sensing information into a pen tip signal sensing image; and According to the pen tail signal sensing image and the pen head signal sensing image, the proximity position of the active touch pen and the pen touch end information of the pen head end or the pen tail end being close to the touch panel are calculated. 22 . The touch processing method as claimed in claim 21 , wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

23. The touch processing method as described in claim 21, wherein the one-dimensional pen tip signal sensing information includes sensing information of a first pen tip signal and a second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

24. The touch processing method as described in claim 23, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the second stylus signal during a second stylus signal period included in the stylus signal period.

25. The touch processing method of claim 21, wherein the stylus electrode comprises a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the stylus end of the active stylus, wherein the one-dimensional stylus signal sensing information comprises sensing information of a first stylus signal and a third stylus signal, wherein the first stylus signal comes from the pen tip electrode, and the third stylus signal comes from the one or more ring electrodes, and the touch processing method further comprises: Calculate two proximity positions of the pen tip electrode and the one or more ring electrodes according to the pen tip signal sensing image; Calculating the projection axis of the active stylus according to the two proximity positions; and The tilt angle between the active stylus and the touch panel is calculated according to the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

26. The touch processing method as described in claim 25, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the third stylus signal during a third stylus signal period included in the stylus signal period.

27. A touch processing device suitable for a touch panel, the touch panel comprising a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, the touch processing device comprising: A connection network module, used for respectively connecting the plurality of first electrodes and the plurality of second electrodes; A driving circuit module, used for providing a driving signal; A sensing circuit module, used for sensing signals; as well as A processor module that executes multiple instructions in non-volatile memory to achieve: Allowing the connection network module to connect the driving circuit module to the plurality of first electrodes; The driving circuit module sends a beacon signal; Allowing the connection network module to connect the sensing circuit module to the plurality of first electrodes and the plurality of second electrodes; The sensing circuit module detects the pen end signal through the plurality of second electrodes and the plurality of first electrodes respectively during the pen end signal period to obtain first-axis pen end signal sensing information and second-axis pen end signal sensing information; The sensing circuit module detects the pen tip signal through the plurality of second electrodes and the plurality of first electrodes respectively during the pen tip signal period to obtain first-axis pen tip signal sensing information and second-axis pen tip signal sensing information; as well as According to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen head signal sensing information and the second-axis pen head signal sensing information, the proximity position of the active stylus and the pen tip end information of the pen tip end or the pen tail end approaching the touch panel are calculated. 28 . The touch processing device as claimed in claim 27 , wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

29. A touch processing device as described in claim 27, wherein the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element of the pen tip of the active stylus, and the processor module is further used to calculate the value of the pressure based on the strength of the first pen tip signal and the strength of the second pen tip signal.

30. The touch processing device as described in claim 29, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the second stylus signal during a second stylus signal period included in the stylus signal period.

31. The touch processing device as claimed in claim 27, wherein the tip electrode of the active stylus comprises a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the first-axis tip signal sensing information and the second-axis tip signal sensing information comprise sensing information of a first tip signal and a third tip signal, the first tip signal comes from the pen tip electrode, and the third tip signal comes from the one or more ring electrodes, and the processor module is further configured to: Calculate two proximity positions of the pen tip electrode and the one or more ring electrodes according to the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; Calculate the projection axis of the active stylus according to the two proximity positions; as well as The tilt angle between the active stylus and the touch panel is calculated according to the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

32. The touch processing device as described in claim 31, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the third stylus signal during a third stylus signal period included in the stylus signal period.

33. A touch processing method of a touch processing device applicable to a touch panel, the touch panel comprising a plurality of first electrodes parallel to a first axis and a plurality of second electrodes parallel to a second axis, the touch processing method comprising: Enable the connection network module of the touch processing device to connect the driving circuit module of the touch processing device to the plurality of first electrodes; The driving circuit module sends a beacon signal; Allowing the connection network module to connect the sensing circuit module of the touch processing device to the plurality of first electrodes and the plurality of second electrodes; The sensing circuit module is configured to detect the pen tail signal through the plurality of second electrodes and the plurality of first electrodes during the pen tail signal period to obtain first-axis pen tail signal sensing information and second-axis pen tail signal sensing information; the sensing circuit module is configured to detect the pen tip signal through the plurality of second electrodes and the plurality of first electrodes during the pen tip signal period to obtain first-axis pen tip signal sensing information and second-axis pen tip signal sensing information; According to the first-axis pen tail signal sensing information, the second-axis pen tail signal sensing information, the first-axis pen head signal sensing information and the second-axis pen head signal sensing information, the proximity position of the active stylus and the pen tip end information of the pen tip end or the pen tail end approaching the touch panel are calculated. 34 . The touch processing method as claimed in claim 33 , wherein the pen tip signal period and the pen tail signal period are adjacent to each other without a conversion period.

35. A touch processing method as described in claim 33, wherein the above-mentioned first-axis pen tip signal sensing information includes sensing information of the first pen tip signal and the second pen tip signal, the strength of the second pen tip signal corresponds to the pressure exerted on the force sensing element at the pen tip end of the active stylus, and the touch processing method further includes calculating the pressure value based on the strength of the first pen tip signal and the strength of the second pen tip signal.

36. The touch processing method as described in claim 35, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the second stylus signal during a second stylus signal period included in the stylus signal period.

37. The touch processing method as claimed in claim 33, wherein the tip electrode of the active stylus comprises a pen tip electrode; and one or more ring electrodes, wherein the one or more ring electrodes surround the tip end of the active stylus, wherein the first-axis tip signal sensing information and the second-axis tip signal sensing information comprise sensing information of a first tip signal and a third tip signal, the first tip signal comes from the pen tip electrode, and the third tip signal comes from the one or more ring electrodes, and the touch processing method further comprises: Calculate two proximity positions of the pen tip electrode and the one or more ring electrodes according to the first-axis pen tip signal sensing information and the second-axis pen tip signal sensing information; Calculating the projection axis of the active stylus according to the two proximity positions; and The tilt angle between the active stylus and the touch panel is calculated according to the two proximity positions and the relative positions of the pen tip electrode and the one or more ring electrodes.

38. The touch processing method as described in claim 37, wherein the above-mentioned sensing circuit module senses the first stylus signal during a first stylus signal period included in the stylus signal period, and senses the third stylus signal during a third stylus signal period included in the stylus signal period.

39. A touch control system, comprising the touch panel and the touch control processing device as claimed in any one of claims 15 to 20 and claims 27 to 32.

40. The touch control system as claimed in claim 39, further comprising the active stylus as described above.

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