Touch control processing device and method thereof, touch pen and processing method thereof, and touch control system

Abstract

The present invention is a touch control processing device and method thereof, a touch pen and processing method thereof, and a touch control system. The touch control processing method comprises: sending a beacon signal through multiple touch electrodes of a touch panel; in the first time period after sending the beacon signal, receiving the first electrical signal sent by N styluses in sequence through the multiple touch electrodes; when receiving the first electrical signal sent by the i-th stylus among the N styluses in the first time period, receiving the j-th electrical signal of the i-th stylus through the multiple touch electrodes in the i-th time slots of multiple j-th time periods after sending the beacon signal; and when the first electrical signal sent by the i-th stylus is not received in the first time period, performing other types of detection in the i-th time slots of the multiple j-th time periods, wherein 1<=i<=N, 2<=j<=M, N and M are both positive integers greater than or equal to 2, and i and j are positive integers.

Description

Technical Field

[0001] The present application relates to a touch control system, and more particularly to a touch control system including a stylus. Background Art

[0002] Styluses are increasingly used in touch systems, especially styluses that actively send out electrical signals, which allow users to operate on touch panels or screens more accurately. As touch panels or screens become larger, touch systems may allow more than one active stylus to operate.

[0003] However, in addition to detecting the active stylus, the touch system also needs to detect external conductive objects such as fingers. Since both the detection of the active stylus' electrical signals and the detection of external conductive objects need to be performed through the electrodes of the touch panel or screen, most of the time-division multiplexing is used to detect the active stylus and external conductive objects at different time periods. In this case, the detection of the stylus and the external conductive object cannot be performed at the same time.

[0004] In addition, users have higher and higher requirements for the performance of touch systems, that is, users require faster and faster touch responses. In other words, within a unit of time, the touch processing device must increase the number of reports of proximity events caused by the stylus and external conductive objects, that is, the reporting rate. When the number of active styluses in operation increases, how to maximize the reporting rate of proximity events of external conductive objects is the main problem that this application aims to solve. Summary of the invention

[0005] According to one embodiment of the present application, a touch processing method is provided, comprising: sending a beacon signal through multiple touch electrodes of a touch panel; in a first time period after sending the beacon signal, receiving a first electrical signal sent by N styluses in a time sequence through the multiple touch electrodes; when the first electrical signal sent by the i-th stylus among the N styluses is received in the first time period, receiving a j-th electrical signal from the i-th stylus through the multiple touch electrodes in i-th time slots of multiple j-th time periods after sending the beacon signal; and when the first electrical signal sent by the i-th stylus is not received in the first time period, performing other types of detection in i-th time slots of the multiple j-th time periods, wherein 1<=i<=N, 2<=j<=M, N and M are both positive integers greater than or equal to 2, and i and j are positive integers.

[0006] According to one embodiment of the present application, a touch processing method is provided, comprising: sending a beacon signal through multiple touch electrodes of a touch panel; receiving indication signals sent by N styluses in a time sequence through the multiple touch electrodes during an indication period after the sending of the beacon signal; when an indication signal sent by an i-th stylus among the N styluses is received during the indication, receiving an electrical signal sent by the i-th stylus through the multiple touch electrodes during the i-th period after the sending of the beacon signal; and when an indication signal from the i-th stylus is not received during the indication period, performing other types of detection during the i-th period, wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

[0007] According to one embodiment of the present application, a touch processing device is provided, comprising: a driving circuit for sending a beacon signal through a plurality of touch electrodes of a touch panel; a sensing circuit for receiving an electrical signal sent by a stylus through the plurality of touch electrodes; and an embedded processor connected to the driving circuit and the sensing circuit for executing a plurality of instructions stored in a non-volatile memory to implement the following steps: causing the driving circuit to send the beacon signal through the plurality of touch electrodes; in a first period after sending the beacon signal, causing the sensing circuit to receive N styluses in sequence through the plurality of touch electrodes the first electrical signal emitted; when the first electrical signal emitted by the i-th stylus among the N styluses is received in the first time period, at the i-th time slot of multiple j-th time periods after the beacon signal is emitted, the sensing circuit receives the j-th electrical signal from the i-th stylus through the multiple touch electrodes; and when the first electrical signal emitted by the i-th stylus is not received in the first time period, other types of detection are performed at the i-th time slots of the multiple j-th time periods, wherein 1<=i<=N, 2<=j<=M, N and M are positive integers greater than or equal to 2, and i and j are positive integers.

[0008] According to one embodiment of the present application, a touch processing device is provided, comprising: a driving circuit for sending a beacon signal through a plurality of touch electrodes of a touch panel; a sensing circuit for receiving an electrical signal sent by a stylus through the plurality of touch electrodes; and an embedded processor connected to the driving circuit and the sensing circuit for executing a plurality of instructions stored in a non-volatile memory to implement the following steps: causing the driving circuit to send the beacon signal through the plurality of touch electrodes; causing the sensing circuit to send the beacon signal through the plurality of touch electrodes during an indication period after sending the beacon signal; A plurality of touch electrodes receive indication signals emitted by N styluses in sequence; when an indication signal emitted by the i-th stylus among the N styluses is received during the indication period, the sensing circuit receives the electrical signal emitted by the i-th stylus through the plurality of touch electrodes during the i-th period after the beacon signal is emitted; and when an indication signal from the i-th stylus is not received during the indication period, other types of detection are performed during the i-th period, wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

[0009] According to an embodiment of the present application, a touch control system is provided, including the touch control processing device and the touch control panel.

[0010] In summary, the touch processing method, device and touch system provided by the present application can detect the electrical signals sent by multiple styluses, and in a cycle, according to whether a certain stylus sends the first electrical signal, determine whether to continue to detect the subsequent electrical signals of the stylus in the subsequent time period. When the first electrical signal sent by the stylus cannot be detected, the time period for detecting the subsequent electrical signals is used for other purposes, so as to improve the utilization rate of the touch system.

[0011] For example, increasing the detection rate or reporting rate related to external conductive objects.

[0012] According to one embodiment of the present application, a stylus pen processing method is provided, comprising: receiving a lighthouse signal through a stylus pen tip electrode; and sending a jth electrical signal through the stylus pen tip electrode in an i-th time slot of a j-th time period after detecting the lighthouse signal, wherein 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, and i is a positive integer.

[0013] According to one embodiment of the present application, a stylus pen processing method is provided, comprising: receiving a beacon signal through a pen tip electrode of the stylus pen; sending a presence signal through the pen tip electrode in the i-th time slot of the indication period after the beacon signal is detected; and sending an electrical signal through the pen tip electrode in the i-th time period after the beacon signal is detected, wherein i is a positive integer.

[0014] According to one embodiment of the present application, a stylus is provided, comprising: a pen tip electrode; a receiving circuit connected to the pen tip electrode to receive a lighthouse signal; a transmitting circuit for sending an electrical signal through the pen tip electrode; and a processor connected to the receiving circuit and the transmitting circuit, for executing multiple instructions stored in a non-volatile memory to implement the following steps: causing the receiving circuit to detect the lighthouse signal; causing the transmitting circuit to send a jth electrical signal in the i-th time slot of the j-th time period after detecting the lighthouse signal, wherein 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, and i is a positive integer.

[0015] According to one embodiment of the present application, a stylus is provided, comprising: a pen tip electrode; a receiving circuit connected to the pen tip electrode to receive a lighthouse signal; a transmitting circuit for sending an electrical signal through the pen tip electrode; and a processor connected to the receiving circuit and the transmitting circuit, for executing multiple instructions stored in a non-volatile memory to implement the following steps: allowing the receiving circuit to detect the lighthouse signal; sending a presence signal through the pen tip electrode in the i-th time slot of the indication time period after the lighthouse signal is detected; and sending an electrical signal through the pen tip electrode in the i-th time period after the lighthouse signal is detected, where i is a positive integer.

[0016] In summary, the stylus and stylus processing method provided by the present application send out multiple electrical signals in one cycle, so that the touch processing device can decide whether to continue to detect the subsequent electrical signals of a certain stylus in the subsequent time period according to whether the stylus sends out the first electrical signal. When the first electrical signal sent by the stylus cannot be detected, the time period for detecting the subsequent electrical signals is used for other purposes, so as to improve the utilization rate of the touch system, such as increasing the detection rate or reporting rate related to the external conductive object. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a touch control system 100 according to an embodiment of the present invention.

[0018] Figure 2 FIG. 1 is a block diagram of a touch processing device 130 according to an embodiment of the present invention.

[0019] Figure 3 FIG. 1 is a block diagram of a stylus pen 110 according to an embodiment of the present invention.

[0020] Figure 4A FIG. 1 is a schematic diagram of a signal period according to an embodiment of the present invention (I).

[0021] Figure 4B FIG. 2 is a schematic diagram of a signal period according to an embodiment of the present invention. FIG.

[0022] Figure 4C FIG. 3 is a schematic diagram of a signal period according to an embodiment of the present invention. FIG.

[0023] Figure 4D FIG. 4 is a schematic diagram of a signal period according to an embodiment of the present invention. FIG.

[0024] Figure 5A FIG. 5 is a schematic diagram of a signal period according to an embodiment of the present invention. FIG.

[0025] Figure 5B FIG6 is a schematic diagram of a signal period according to an embodiment of the present invention. ...

[0026] Figure 5C FIG. 7 is a schematic diagram of a signal period according to an embodiment of the present invention. FIG.

[0027] Figure 6 FIG. 6 is a flow chart of a touch processing method 600 according to an embodiment of the present invention.

[0028] Figure 7 FIG. 7 is a flow chart of a stylus processing method 700 according to an embodiment of the present invention.

[0029] Figure 8 FIG. 8 is a flow chart of a touch processing method 800 according to an embodiment of the present invention.

[0030] Fig. 9 FIG. 9 is a flow chart of a stylus processing method 900 according to an embodiment of the present invention.

[0031]

Main component symbol description

[0032] 100: Touch control system 110, 110A, 110B: Stylus pen 112: Hand 115A, 115B: Electronic eraser

[0033] 120: touch panel 121: first electrode

[0034] 122: second electrode 130: touch processing device

[0035] 140: Host 150: Display processing device

[0036] 160: Display 210: Network connection

[0037] 220: driving circuit 230: sensing circuit

[0038] 240: Embedded Processor 250: Host Interface

[0039] 310: Power module 320: Processor

[0040] 350: Transmitting circuit 360: Receiving circuit

[0041] 370: Force sensor 380: Multiplexer

[0042] 390: Pen tip electrode 395: Ring electrode

[0043] 410: Sending a beacon signal Box 411-443: Time slot

[0044] 450, 450A~450K: other types of detection time slots 511~513: indication signal time slots

[0045] 510~530: Time period 550, 550A~550C: Other types of detection time period 600: Touch processing method 610-690: Steps 700: Stylus pen processing method 710-750: Steps 800: Touch processing method 820-890: Steps 900: Stylus pen processing method 920-930: Steps DETAILED DESCRIPTION

[0046] Please refer to Figure 1 , which is a schematic diagram of a touch control system 100 according to an embodiment of the present invention. The touch control system 100 includes a host 140, which includes a device for controlling the overall operation of the touch control system 100, such as a central processing unit, a memory, and an interface for connecting peripheral input and output devices. The interface may include industrial standard interfaces such as PC I, PC IE, SATA, ATA, USB, UART, etc., or may include a dedicated interface. The host 140 is connected to a display processing device 150 through the interface, which is used to connect to a display 160 and process the display content of the display 160. The host 140 is also connected to a touch control processing device 130 through the interface, which is used to connect to a transparent touch panel 120 formed by a plurality of touch control electrodes, and is used to use the touch panel 120 to detect an external conductive object (such as a hand 112), a stylus 110A and 110B, an electronic eraser 115A and an electronic eraser 115B, etc. that is close to or in contact (referred to as proximity). The transparent touch panel 120 includes a plurality of first electrodes 121 parallel to a first axis and a plurality of second electrodes 122 parallel to a second axis. The transparent touch panel 120 can be directly disposed on the display 160, or the touch panel 120 and the liquid crystal display 160 can be integrated together to form an embedded touch panel. The present invention does not limit the form in which the transparent touch panel 120 and the display 160 are combined. In one embodiment, the touch screen 120 can be collectively referred to as the touch panel 120 and the display 160.

[0047] The central processing unit of the host 140 can execute the instructions and data stored in the non-volatile memory to execute the operating system and application programs. The host 140 and the display processing device 150 can control the display of the display 160 or the touch screen 120 individually or jointly according to the instructions of the operating system and application programs. In the present invention, it is generally referred to as the display being controlled by the host 140. When the host 140 executes certain programs, the touch screen 120 will display a drawing area. When the stylus 110A or 110B is input in the drawing area, the drawing area will display the handwriting range of the stylus 110A or 110B accordingly. The display content within the handwriting range will change according to the input of the stylus 110A or 110B. Similarly, when the electronic eraser 115A or 115B is input in the drawing area, there will be an erasing area corresponding to the electronic eraser 115A or 115B in the drawing area. The display content in the erasing area will change according to the input of the electronic eraser 115A or 115B.

[0048] Please refer to Figure 2 , which is a block diagram of a touch processing device 130 according to an embodiment of the present invention. The touch processing device 130 includes an embedded processor 240, which is used to connect and control a connection network 210, a driving circuit 220, a sensing circuit 230 and a host interface 250. The driving circuit 220 can be connected to each first electrode 121 and each second electrode 122 through the connection network 210, respectively, for using these electrodes to send a driving signal. The sensing circuit 230 can be connected to each first electrode 121 and each second electrode 122 through the connection network 210, respectively, for using these electrodes to sense signals. The embedded processor 240 can communicate with the host 140 through the host interface 250. The embedded processor 240 can execute a program module stored in a non-volatile memory to detect the aforementioned proximity objects and proximity events.

[0049] Please refer to Figure 3, which is a block diagram of a stylus pen 110 according to an embodiment of the present invention. The stylus pen 110 may include a power module 310, which may include a battery or a capacitor for supplying power to the stylus pen 110. One end of the stylus pen 110 may include a pen tip electrode 390. There may be at least one ring electrode 395 around the pen tip electrode 390, which is used to surround the pen tip electrode 390. The pen tip electrode 390 and the ring electrode 395 may send electrical signals in a time-sharing or simultaneous manner. The touch processing device 130 may detect the electrical signal through the first electrode 121 and the second electrode 122 of the touch panel 120, and the pen tip electrode position and the ring electrode position of the stylus pen 110 may be known. Then, according to the pen tip electrode position and the ring electrode position, the pen axis direction of the stylus pen 110 projected on the touch panel 120 is calculated, and the inclination angle of the stylus pen 110 relative to the touch panel 120 is calculated.

[0050] The stylus pen 110 may include a multiplexer 380, a receiving circuit 360, a transmitting circuit 350, and a processor 320. The multiplexer 380 may be connected to the pen tip electrode 390 and the ring electrode 395. The touch processing device 130 sends a beacon signal to the stylus pen 110 through the first electrode 121 and the second electrode 122 of the touch panel 120. When the stylus pen 110 receives the beacon signal, the multiplexer 380 is set to connect to the pen tip electrode 390. The receiving circuit 360 may receive the beacon signal through the multiplexer 380 and the pen tip electrode 390. After receiving the beacon signal, the receiving circuit 360 may notify the processor 320 to perform subsequent processing.

[0051] When the stylus pen 110 sends an electrical signal, the multiplexer 380 is configured to connect the pen tip electrode 390 and / or the ring electrode 395. The transmission circuit 350 can send an electrical signal to the touch panel 120 through the pen tip electrode 390 and the ring electrode 395 simultaneously or in a time-sharing manner. The stylus pen 110 may also include a force sensor 370 connected to the pen tip electrode 390 for sensing the pressure received by the pen tip. The pressure received by the force sensor 370 may be transmitted to the processor 320. The processor 320 may modulate the electrical signal according to the received force, so that the touch processing device 130 may calculate the force sensing value according to the modulated electrical signal.

[0052] Although Figure 3 The force sensor 370 shown senses force in digital form, but the present invention can apply the method adopted by US Pat. No. 9,581,816 and its continuation and continuation-in-part to directly use the force sensor to modulate the output electrical signal.

[0053] In one embodiment of the present application, the touch control system 100 may include a plurality of styluses 110. These styluses 110 have a number, which may be a natural number greater than 1. The user may learn the number of a certain stylus 110 through the human-machine interface of the stylus 110 or through other means, and may also set the number of the stylus 110 through the human-machine interface of the stylus 110 or through other means. The number may be stored in the memory of the stylus 110. The processor 320 may access the memory to learn the number.

[0054] When the touch control system 100 includes styluses 110 with different numbers, these styluses 110 will send electrical signals in turn in a time-sharing manner according to their numbers. The basic timing point of the time-sharing is the beacon signal sent by the touch processing device 130 through the touch panel 120. When receiving the beacon signal, the processor 320 of the stylus 110 will send an electrical signal according to the time period corresponding to the number. In other words, when two styluses 110 with different numbers are operated in the same touch control system 100, there will be no situation where the two styluses 110 send electrical signals at the same time.

[0055] Please refer to Figure 4A , which is a schematic diagram of a signal period according to an embodiment of the present invention (I). The touch control system 100 can be designed to allow N styluses 110 to operate, where N is a positive integer greater than or equal to 2. Figure 4A In the embodiment of , N is 3. That is, the touch control system 100 can accommodate up to three styluses 110 for operation. After receiving the lighthouse signal, each stylus 110 does not send out an electrical signal only once, but sends out M signals, where M is a positive integer greater than or equal to 2. Figure 4A In the embodiment of the present invention, M is 4.

[0056] Box 410 indicates that the touch processing device 130 sends a beacon signal through the first electrode 121 and / or the second electrode 122 of the touch panel 120. The first stylus 110A has a number 1. After receiving the beacon signal, its processor 320 will send an electrical signal in the first time slot of the four time periods according to its number 1. Figure 4A As shown, the first stylus pen 110A will respectively send out the first, second, third and fourth electrical signals in time slots 411, 421, 431 and 441. The present application does not limit the modulation method and content of the electrical signals sent in these time periods, nor does it limit the electrodes from which these electrical signals are sent. For example, the first electrical signal and the second electrical signal may contain different contents, and they may be sent out from the ring electrode 395 and the pen tip electrode 390, respectively.

[0057] Similarly, the second stylus 110B has a number 2. After receiving the beacon signal, its processor 320 will send out an electrical signal in the second time slot of the four time periods according to its number 2. Figure 4A As shown, the second stylus pen 110B will send out the first, second, third and fourth electrical signals in time slots 412, 422, 432 and 442 respectively. Similarly, the third stylus pen 110C has a number 3. After receiving the beacon signal, its processor 320 will send out electrical signals in the third time slot of the four time periods according to its number 3. Figure 4A As shown, the third stylus pen 110C will respectively send out the first, second, third and fourth electrical signals in time slots 413, 423, 433 and 443. After these time slots, the touch processing device 130 can perform other types of detection in the period of block 450.

[0058] When the touch control system 110 is designed to accommodate N styluses, and each stylus sends out an electrical signal M times after receiving a beacon signal, the touch control processing device 130 will receive the electrical signal in N x M time slots after the beacon signal. Figure 4A As shown, after the beacon signal is sent, there are a total of 12 time slots. Since each stylus 110 can send M electrical signals in each cycle, the position of each stylus 110 can be reported at most M times in each cycle.

[0059] However, when less than N styluses 110A are involved in the operation, the touch processing device 130 can use the vacated time slots to perform other types of detection. For example, the mutual capacitance and / or self-capacitance mechanism is used to detect external conductive objects, whether there is a large area of ​​conductive liquid covering the touch panel 120, detect environmental interference sources, or even power saving and sleep. In this application, other types of detection are generally referred to as detection of external conductive objects. However, those skilled in the art can understand that the time period used to detect external conductive objects can also be used for other types of detection.

[0060] Please refer to Figure 4B As shown, it is a schematic diagram of a signal period according to an embodiment of the present invention (II). Figure 4A Compared with the embodiment, Figure 4BThe embodiment shown only includes the first stylus 110A, and the second and third stylus 110B and 110C are not present. The touch processing device 130 does not detect the first electrical signal sent by the stylus 110B and 110C in the time slots corresponding to the blocks 412 and 413. Therefore, the touch processing device 130 only detects the electrical signal of the first stylus 110A in the time slots 421, 431, and 441, and performs other types of detection in the originally scheduled time slots 422, 432, 442, 423, 433, and 443.

[0061] Since the above-mentioned time slots may include turnaround periods, the touch processing device 130 may combine these turnaround periods with the time slots into a continuous period to facilitate other types of detection. For example, the original time slots 422 and 423 and the turnaround period may be combined into another type of detection period 450A, and the original time slots 432 and 433 and the turnaround period may be combined into another type of detection period 450B. In addition to being combined with the turnaround period, the original time slots 442 and 443 may also be combined with the original period 450 to form a longer continuous period 450C. Accordingly, the touch processing device 130 may determine whether the subsequent time slots are used to detect the electrical signal of the stylus 110 or to perform other types of detection based on whether the three time slots 411, 412, and 413 of the first period detect the first electrical signal of the three styluses.

[0062] Please refer to Figure 4C As shown, it is a schematic diagram of a signal period according to an embodiment of the present invention (III). and Figure 4A Compared with the embodiment, Figure 4C The illustrated embodiment does not include the first stylus 110A, but includes the second and third stylus 110B and 110C. Therefore, when the first electrical signal from the first stylus 110A is not received in the time slot 411, the touch processing device 130 will convert the original time slots 421, 431, 441 into other types of detection periods 450D, 450E, 450F respectively.

[0063] Please refer to Figure 4D As shown, it is a schematic diagram of a signal period according to an embodiment of the present invention (IV). and Figure 4A Compared with the embodiment, Figure 4DThe embodiment shown only includes the second stylus 110B, and does not include the first and third stylus 110A and 110C. Therefore, when the first electrical signal of the first stylus 110A is not received in the time slot 411, and the first electrical signal of the third stylus 110C is not received in the time slot 413, the touch processing device 130 will convert the time slots originally reserved for the first and third stylus 110A and 110C into other types of detection periods 450H, 450I, and 450J respectively. The last time slot 443 will be combined with the original period 450 to become another type of detection period 450K.

[0064] exist Figure 4A to Figure 4C In an embodiment, the stylus 110 sends out an electrical signal M times in one cycle in order to increase the update rate. However, the touch processing device 130 requires a relatively complex calculation method to change the time slots and interval periods that will not be used into other types of detection periods. In another embodiment, the stylus 110 may send out an electrical signal twice in one cycle. The electrical signal sent out for the first time is an existence signal indicating the existence of the stylus 110, and the electrical signal sent out for the second time is an electrical signal indicating the status of the stylus 110. In a preferred embodiment, the time period for sending the existence signal may be relatively short, and the time period for sending the electrical signal for the second time may be relatively long in order to carry more information. However, the present application does not limit the modulation method and time period of the two electrical signals.

[0065] Please refer to Figure 5A As shown, it is a schematic diagram of a signal time period according to an embodiment of the present invention (V). After receiving the lighthouse signal in time period 410, the first stylus 110A sends a presence signal in time slot 511. Then, the second stylus 110B and the third stylus 110C send presence signals in time slots 512 and 513, respectively. Time slots 511, 512, and 513 can constitute an indication time period. The touch processing device 130 can determine whether there are three styluses 110A to 110C based on these three time slots, respectively. When an existence signal is detected in the corresponding time slot, the touch processing device 130 will detect the electrical signal of the stylus in the corresponding electrical signal time period. Otherwise, the touch processing device 130 will perform other types of detection in the corresponding electrical signal time period.

[0066] In time periods 510, 520, and 530, the stylus 110A-110C send out electrical signals to indicate the status of the stylus. According to the assigned number, the stylus 110 will send out electrical signals in the corresponding time period after receiving the lighthouse signal. In a cycle, the touch processing device 130 can perform other types of detection in time period 550 after the electrical signal period of each stylus.

[0067] Please refer to Figure 5BAs shown, it is a schematic diagram of a signal period according to an embodiment of the present invention (VI). Figure 5A Compared with the embodiment, Figure 5B The touch processing device 130 shown does not receive the presence signal of the first stylus 110A during the time slot 511. Therefore, the time period 510 originally scheduled to receive the electrical signal of the first stylus 110A is converted into another type of detection time period 550A.

[0068] Please refer to Figure 5C As shown, it is a schematic diagram of a signal period according to an embodiment of the present invention (VII). Figure 5A Compared with the embodiment, Figure 5B The touch processing device 130 shown receives the presence signal of the second stylus 110B only in the time slot 512. Therefore, the time period 510 originally scheduled to receive the electrical signal of the first stylus 110A is converted into another type of detection time period 550A. The time period 530 originally scheduled to receive the electrical signal of the third stylus 110C, together with the interval time period and the original time period 550, are combined into another type of detection time period 550C.

[0069] It will be appreciated by those skilled in the art that although Figure 4A to Figure 5C In the embodiment shown, other types of detection periods are after the time slot of receiving the stylus pen electrical signal, but the present application does not limit the order between the transmission period of the lighthouse signal, the period / time slot of the stylus pen transmitting the electrical signal, and other types of detection periods. The present application only requires that in a cycle, the period / time slot of the stylus pen transmitting the electrical signal must be after the transmission period of the lighthouse signal. In addition, the period of the stylus pen transmitting the electrical signal must be after the time slot of transmitting the presence signal.

[0070] Please refer to Figure 6 FIG. 6 is a flow chart of a touch processing method 600 according to an embodiment of the present invention. The touch processing method 600 may be applicable to Figure 2 The touch processing device 130 is shown. In one embodiment, it can be a program stored in a non-volatile memory and executed by the embedded processor 240. If no causal relationship is specified, the application does not limit the execution order of any two steps.

[0071] The touch processing method 600 may start from step 610 or step 690, which may refer to Figure 4A to Figure 4D When executing the touch processing method 600, two variables i and j of positive integer type need to be maintained. i represents the number of stylus, j represents the number of time period, where 1<=i<=N, 2<=j<=M. N is a positive integer greater than 2. M is also a positive integer greater than 2. The initial value of i is 1, and the initial value of j is 2.

[0072] Step 610 : The driving circuit 220 sends a beacon signal through the first electrode 121 and / or the second electrode 122 of the touch panel 120 .

[0073] Step 620: The sensing circuit 230 sequentially receives the first electrical signals from the N styluses in the N time slots of the first period. The first period referred to herein may include: Figure 4A to Figure 4D The time slots 411, 412, 413 and / or interval periods are shown.

[0074] Step 630: Determine whether the first electrical signal transmitted by the i-th stylus is received in the i-th time slot. If the first electrical signal is received, the process proceeds to step 640. Otherwise, the process proceeds to step 650.

[0075] Step 640: Receive the electrical signal of the i-th stylus in the i-th time slot of the j-th time period.

[0076] Step 650: Perform other types of detection in the i-th time slot of the j-th period.

[0077] Step 660: Increase the value of i by 1. Then proceed to step 665 of determination.

[0078] Step 665: Determine whether i is greater than N. If the result is true, it means that the detection modes of the N time slots in the jth period have been determined, and the process proceeds to step 670. Otherwise, it means that the detection modes of all time slots in the jth period have not been determined, and the process returns to step 630.

[0079] Step 670: Increase the value of j by 1 and restore i to its initial value.

[0080] Step 675: Determine whether j is greater than M. If the result is true, it means that the detection modes of all time periods have been determined, and the process proceeds to step 680. Otherwise, it means that the detection modes of each time slot in the jth time period are still waiting to be determined, and the process returns to step 630.

[0081] Step 680: Perform other types of detection. As mentioned above, other types of detection include one or any combination of the following: using mutual capacitance and / or self-capacitance to detect external conductive objects, whether there is a large area of ​​conductive liquid covering the touch panel 120, detecting environmental interference sources, and power saving sleep.

[0082] Step 690: Reset i and j to return these two variables to their initial values.

[0083] Please refer to Figure 7 FIG. 7 is a flow chart of a stylus pen processing method 700 according to an embodiment of the present invention. The stylus pen processing method 700 may be applicable to Figure 3The stylus pen 110 is shown. In one embodiment, it can be a program stored in a non-volatile memory and executed by the processor 320. If no causal relationship is specified, the application does not limit the execution order of any two steps.

[0084] The stylus pen processing method 700 may start from step 710 or step 750, which may refer to Figure 4A to Figure 4D When executing the stylus processing method 700, two constants i and variables j in the form of positive integers need to be maintained. i represents the positive integer number of the stylus executing the method, and j represents the time period, where 1<=j<=M. M is a positive integer greater than 2. The initial value of i can be set through the human-machine interface or when the stylus is shipped from the factory, and the initial value of j is 1.

[0085] Step 710: The receiving circuit 360 receives a beacon signal.

[0086] Step 720: In the i-th time slot of the j-th time period, the transmission circuit 350 sends the j-th electrical signal.

[0087] Step 730: Increase the value of j by 1.

[0088] Step 740: Determine whether j is greater than M. If the result is true, it means that M electrical signals have been sent, and the process proceeds to step 750. Otherwise, it means that M electrical signals have not been sent, and the process returns to step 720.

[0089] Step 750: Reset j to the initial value. Then, the process returns to step 710.

[0090] Please refer to Figure 8 FIG. 8 is a flow chart of a touch processing method 800 according to an embodiment of the present invention. The touch processing method 800 may be applicable to Figure 2 The touch processing device 130 is shown. In one embodiment, it can be a program stored in a non-volatile memory and executed by the embedded processor 240. If no causal relationship is specified, the application does not limit the execution order of any two steps.

[0091] The touch processing method 800 may start from step 610 or step 890, and may refer to Figure 5A to Figure 5C When executing the touch processing method 800, a variable i of a positive integer type needs to be maintained. i represents the number of time periods, where 1<=i<=N. N is a positive integer greater than 2. The initial value of i is 1. Steps 610 and 680 have already been Figure 6 The above has been described in the embodiments of the present invention and will not be described in detail here.

[0092] Step 820 : The sensing circuit 230 sequentially receives the presence signals corresponding to the N styluses during the indication period. Then, the process proceeds to step 830 .

[0093] Step 830: Determine whether a presence signal from the i-th stylus pen is received during the indication period. If the result is true, the process proceeds to step 840. Otherwise, the process proceeds to step 850.

[0094] Step 840 : In the i-th time period, the sensing circuit 230 receives the electrical signal sent by the i-th stylus.

[0095] Step 850: Perform other types of detection during the i-th time period.

[0096] Step 860: Increase the value of i by 1.

[0097] Step 870: Determine whether i is greater than N. If the result is true, it means that the detection modes of all N time periods have been determined, and the process goes to step 680. Otherwise, the process returns to step 830.

[0098] Step 890: Reset i to the initial value. The process returns to step 610.

[0099] Please refer to Fig. 9 FIG. 9 is a flow chart of a stylus pen processing method 900 according to an embodiment of the present invention. The stylus pen processing method 900 may be applicable to Figure 3 The stylus pen 110 is shown. In one embodiment, it can be a program stored in a non-volatile memory and executed by the processor 320. If no causal relationship is specified, the application does not limit the execution order of any two steps.

[0100] The stylus processing method 900 may start from step 710, which may refer to Figure 5A to Figure 5C When executing the stylus processing method 900, it is necessary to maintain a constant i in the form of a positive integer. i represents the positive integer number of the stylus executing this method. The initial value of i can be set through the human-machine interface or set when the stylus is shipped. Step 710 has been Figure 7 The above is described in the embodiments and will not be described in detail here.

[0101] Step 920: At the i-th time slot of the indication period, the transmission circuit 350 sends a presence signal. The presence signal may be sent from one or both of the ring electrode 395 and the pen tip electrode 390.

[0102] Step 930: In the i-th time period, the transmitting circuit 350 sends an electrical signal. Then, the process returns to step 710.

[0103] According to one embodiment of the present application, a touch processing method is provided, comprising: sending a beacon signal through multiple touch electrodes of a touch panel; in a first time period after sending the beacon signal, receiving a first electrical signal sent by N styluses in a time sequence through the multiple touch electrodes; when the first electrical signal sent by the i-th stylus among the N styluses is received in the first time period, receiving a j-th electrical signal from the i-th stylus through the multiple touch electrodes in i-th time slots of multiple j-th time periods after sending the beacon signal; and when the first electrical signal sent by the i-th stylus is not received in the first time period, performing other types of detection in i-th time slots of the multiple j-th time periods, wherein 1<=i<=N, 2<=j<=M, N and M are both positive integers greater than or equal to 2, and i and j are positive integers.

[0104] In one embodiment, in order to facilitate calculation of the length of the time slot, the length of reception time from the first electrical signal to the Mth electrical signal is the same.

[0105] According to one embodiment of the present application, a touch processing method is provided, comprising: sending a beacon signal through multiple touch electrodes of a touch panel; receiving indication signals sent by N styluses in a time sequence through the multiple touch electrodes during an indication period after the sending of the beacon signal; when an indication signal sent by an i-th stylus among the N styluses is received during the indication period, receiving an electrical signal sent by the i-th stylus through the multiple touch electrodes during the i-th period after the sending of the beacon signal; and when an indication signal from the i-th stylus is not received during the indication period, performing other types of detection during the i-th period, wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

[0106] In one embodiment, in order to minimize the waste caused by the indication signal, the receiving time length of the indication signal is shorter than the receiving time length of the electrical signal.

[0107] In one embodiment, in order to enable the touch system to perform other functions, the other types of detection include one of the following or any combination thereof: detecting external conductive objects; detecting whether a large area of ​​conductive liquid covers the touch panel; detecting environmental interference; and power saving sleep.

[0108] In one embodiment, in order to make the best use of idle interval time periods, the touch processing method further includes: when two adjacent time periods or time slots perform other types of detection, the interval time period between the two adjacent time periods or time slots also performs other types of detection.

[0109] According to one embodiment of the present application, a touch processing device is provided, comprising: a driving circuit for sending a beacon signal through a plurality of touch electrodes of a touch panel; a sensing circuit for receiving an electrical signal sent by a stylus through the plurality of touch electrodes; and an embedded processor connected to the driving circuit and the sensing circuit for executing a plurality of instructions stored in a non-volatile memory to implement the following steps: causing the driving circuit to send the beacon signal through the plurality of touch electrodes; in a first period after sending the beacon signal, causing the sensing circuit to receive N styluses in sequence through the plurality of touch electrodes the first electrical signal emitted; when the first electrical signal emitted by the i-th stylus among the N styluses is received in the first time period, at the i-th time slot of multiple j-th time periods after the beacon signal is emitted, the sensing circuit receives the j-th electrical signal from the i-th stylus through the multiple touch electrodes; and when the first electrical signal emitted by the i-th stylus is not received in the first time period, other types of detection are performed at the i-th time slots of the multiple j-th time periods, wherein 1<=i<=N, 2<=j<=M, N and M are positive integers greater than or equal to 2, and i and j are positive integers.

[0110] In one embodiment, in order to facilitate calculation of the length of the time slot, the length of reception time from the first electrical signal to the Mth electrical signal is the same.

[0111] According to one embodiment of the present application, a touch processing device is provided, comprising: a driving circuit for sending a beacon signal through a plurality of touch electrodes of a touch panel; a sensing circuit for receiving an electrical signal sent by a stylus through the plurality of touch electrodes; and an embedded processor connected to the driving circuit and the sensing circuit for executing a plurality of instructions stored in a non-volatile memory to implement the following steps: causing the driving circuit to send the beacon signal through the plurality of touch electrodes; causing the sensing circuit to receive an electrical signal in a timed manner through the plurality of touch electrodes after sending the beacon signal;

[0112] sequentially receiving indication signals emitted by N styluses; when an indication signal emitted by the i-th stylus among the N styluses is received during the indication period, the sensing circuit receives the electrical signal emitted by the i-th stylus through the multiple touch electrodes during the i-th period after the beacon signal is emitted; and when an indication signal from the i-th stylus is not received during the indication period, other types of detection are performed during the i-th period, wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

[0113] In one embodiment, in order to minimize the waste caused by the indication signal, the receiving time length of the indication signal is shorter than the receiving time length of the electrical signal.

[0114] In one embodiment, in order to enable the touch system to perform other functions, the other types of detection include one of the following or any combination thereof: detecting external conductive objects; detecting whether a large area of ​​conductive liquid covers the touch panel; detecting environmental interference; and power saving sleep.

[0115] In one embodiment, in order to make the best use of idle interval time periods, the embedded processor is further configured to: when two adjacent time periods or time slots perform other types of detection, perform other types of detection in the interval time period between the two adjacent time periods or time slots.

[0116] According to an embodiment of the present application, a touch control system is provided, including the touch control processing device and the touch control panel.

[0117] In one embodiment, the touch control system further includes: at least one stylus among the N stylus pens.

[0118] In one embodiment, in order to enable the touch system to perform other functions, the other types of detection include one of the following or any combination thereof: detecting external conductive objects; detecting whether a large area of ​​conductive liquid covers the touch panel; detecting environmental interference; and power saving sleep.

[0119] In one embodiment, in order to make the best use of idle interval time periods, the embedded processor is further configured to: when two adjacent time periods or time slots perform other types of detection, perform other types of detection in the interval time period between the two adjacent time periods or time slots.

[0120] In summary, the touch processing method, device and touch system provided by the present application can detect the electrical signals sent by multiple styluses, and in a cycle, according to whether a certain stylus sends the first electrical signal, determine whether to continue to detect the subsequent electrical signals of the stylus in the subsequent time period. When the first electrical signal sent by the stylus cannot be detected, the time period for detecting the subsequent electrical signals is used for other purposes, so as to improve the utilization rate of the touch system, such as increasing the detection rate or reporting rate related to external conductive objects.

[0121] According to one embodiment of the present application, a stylus pen processing method is provided, comprising: receiving a lighthouse signal through a stylus pen tip electrode; and sending a jth electrical signal through the stylus pen tip electrode in an i-th time slot of a j-th time period after detecting the lighthouse signal, wherein 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, and i is a positive integer.

[0122] In one embodiment, in order to facilitate calculation of the length of the time slot, the transmission time lengths from the first electrical signal to the Mth electrical signal are the same.

[0123] According to one embodiment of the present application, a stylus pen processing method is provided, comprising: receiving a beacon signal through a pen tip electrode of the stylus pen; sending a presence signal through the pen tip electrode in the i-th time slot of the indication period after the beacon signal is detected; and sending an electrical signal through the pen tip electrode in the i-th time period after the beacon signal is detected, wherein i is a positive integer.

[0124] In one embodiment, in order to minimize the waste caused by the indication signal, the transmission time length of the indication signal is shorter than the transmission time length of the electrical signal.

[0125] In one embodiment, in order to allow the touch processing device to know the tilt angle of the stylus and expand the range of electrical signals that can be detected, the stylus processing method further includes sending an electrical signal through a ring electrode of the stylus, wherein the ring electrode is arranged around the pen tip electrode and is electrically insulated from the pen tip electrode.

[0126] According to one embodiment of the present application, a stylus is provided, comprising: a pen tip electrode; a receiving circuit connected to the pen tip electrode to receive a lighthouse signal; a transmitting circuit for sending an electrical signal through the pen tip electrode; and a processor connected to the receiving circuit and the transmitting circuit, for executing multiple instructions stored in a non-volatile memory to implement the following steps: causing the receiving circuit to detect the lighthouse signal; causing the transmitting circuit to send a jth electrical signal in the i-th time slot of the j-th time period after detecting the lighthouse signal, wherein 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, and i is a positive integer.

[0127] In one embodiment, in order to facilitate calculation of the length of the time slot, the transmission time lengths from the first electrical signal to the Mth electrical signal are the same.

[0128] According to one embodiment of the present application, a stylus is provided, comprising: a pen tip electrode; a receiving circuit connected to the pen tip electrode to receive a lighthouse signal; a transmitting circuit for sending an electrical signal through the pen tip electrode; and a processor connected to the receiving circuit and the transmitting circuit, for executing multiple instructions stored in a non-volatile memory to implement the following steps: allowing the receiving circuit to detect the lighthouse signal; sending a presence signal through the pen tip electrode in the i-th time slot of the indication time period after the lighthouse signal is detected; and sending an electrical signal through the pen tip electrode in the i-th time period after the lighthouse signal is detected, where i is a positive integer.

[0129] In one embodiment, in order to minimize the waste caused by the indication signal, the transmission time length of the indication signal is shorter than the transmission time length of the electrical signal.

[0130] In one embodiment, in order to allow the touch processing device to know the tilt angle of the stylus and expand the range of electrical signals that can be detected, the stylus further includes an annular electrode arranged around the pen tip electrode, the annular electrode is electrically insulated from the pen tip electrode, and the transmission circuit is further used to send electrical signals through the annular electrode.

[0131] In summary, the stylus and stylus processing method provided by the present application send out multiple electrical signals in one cycle, so that the touch processing device can decide whether to continue to detect the subsequent electrical signals of a certain stylus in the subsequent time period according to whether the stylus sends out the first electrical signal. When the first electrical signal sent by the stylus cannot be detected, the time period for detecting the subsequent electrical signals is used for other purposes, so as to improve the utilization rate of the touch system, such as increasing the detection rate or reporting rate related to the external conductive object.

[0132] 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 touch processing method, characterized in that: Include: Sending a beacon signal through multiple touch electrodes of the touch panel; In the N time slots of the first period after the beacon signal is sent, the first electrical signal sent by the N styluses is received in time sequence through the plurality of touch electrodes; When the first electrical signal sent by the i-th stylus among the N styluses is received at the i-th time slot of the first period, the j-th electrical signal of the i-th stylus is received through the plurality of touch electrodes at the i-th time slots of the plurality of j-th periods after the beacon signal is sent; as well as When the first electrical signal sent by the i-th stylus is not received in the i-th time slot of the first period, other types of detection are performed in the i-th time slots of the plurality of j-th time slots respectively. Wherein 1<=i<=N, 2<=j<=M, N and M are both positive integers greater than or equal to 2, and i and j are positive integers.

2. The touch processing method according to claim 1, characterized in that: The receiving time lengths from the first electrical signal to the Mth electrical signal are the same.

3. A touch processing method, characterized in that: Include: Sending a beacon signal through multiple touch electrodes of the touch panel; In N time slots of the indication period after the beacon signal is sent, indication signals sent by N styluses are received in time sequence through the plurality of touch electrodes; When an indication signal sent by the i-th stylus among the N styluses is received in the i-th time slot of the indication period, the electrical signal sent by the i-th stylus is received through the plurality of touch electrodes in the i-th time slot after sending the beacon signal; as well as When the indication signal of the i-th stylus is not received in the i-th time slot of the indication period, other types of detection are performed in the i-th time slot. Wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

4. The touch processing method according to claim 3, characterized in that: The receiving time length of the indication signal is shorter than the receiving time length of the electrical signal.

5. The touch processing method according to any one of claims 1 to 4, characterized in that: The other types of detection mentioned above include one or any combination of the following: Detection of external conductive objects; Detecting whether a large area of ​​conductive liquid covers the touch panel; Detect environmental disturbances; and Power saving hibernation.

6. The touch processing method according to any one of claims 1 to 4, characterized in that: Also includes: When other types of detection are performed in two adjacent time periods or time slots, other types of detection are also performed in the interval period between the two adjacent time periods or time slots.

7. A touch processing device, characterized in that: Include: A driving circuit, used for sending a beacon signal through a plurality of touch electrodes of the touch panel; A sensing circuit, used for receiving an electrical signal sent by the stylus through the plurality of touch electrodes; as well as The embedded processor is connected to the driving circuit and the sensing circuit, and is used to execute a plurality of instructions stored in the non-volatile memory to implement the following steps: Allowing the driving circuit to send out the beacon signal through the plurality of touch electrodes; In the N time slots of the first period after the beacon signal is sent, the sensing circuit receives the first electrical signal sent by the N styluses in a time sequence through the plurality of touch electrodes; When the first electrical signal sent by the i-th stylus among the N styluses is received at the i-th time slot of the first period, the sensing circuit receives the j-th electrical signal from the i-th stylus through the plurality of touch electrodes at the i-th time slots of the plurality of j-th periods after the beacon signal is sent; as well as When the first electrical signal sent by the i-th stylus is not received in the i-th time slot of the first period, other types of detection are performed in the i-th time slots of the plurality of j-th time slots respectively. Wherein 1<=i<=N, 2<=j<=M, N and M are both positive integers greater than or equal to 2, and i and j are positive integers.

8. The touch processing device according to claim 7, characterized in that: The receiving time lengths from the first electrical signal to the Mth electrical signal are the same.

9. A touch processing device, characterized in that: Include: A driving circuit, used for sending a beacon signal through a plurality of touch electrodes of the touch panel; A sensing circuit, used for receiving an electrical signal sent by the stylus through the plurality of touch electrodes; as well as The embedded processor is connected to the driving circuit and the sensing circuit, and is used to execute a plurality of instructions stored in the non-volatile memory to implement the following steps: Allowing the driving circuit to send out the beacon signal through the plurality of touch electrodes; In N time slots of the indication period after the beacon signal is sent, the sensing circuit receives indication signals sent by N styluses in a time sequence through the plurality of touch electrodes; When an indication signal sent by the i-th stylus among the N styluses is received in the i-th time slot of the indication period, the sensing circuit receives the electrical signal sent by the i-th stylus through the plurality of touch electrodes in the i-th time slot after sending the beacon signal; as well as When the indication signal of the i-th stylus is not received in the i-th time slot of the indication period, other types of detection are performed in the i-th time slot. Wherein 1<=i<=N, N is a positive integer greater than or equal to 2, and i is a positive integer.

10. The touch processing device according to claim 9, characterized in that: The receiving time length of the indication signal is shorter than the receiving time length of the electrical signal.

11. The touch processing device according to any one of claims 7 to 10, characterized in that: The other types of detection mentioned above include one or any combination of the following: Detection of external conductive objects; Detecting whether a large area of ​​conductive liquid covers the touch panel; Detect environmental disturbances; and Power saving hibernation.

12. The touch processing device according to any one of claims 7 to 10, characterized in that: The embedded processor is also used for: When other types of detection are performed in two adjacent time periods or time slots, other types of detection are also performed in the interval period between the two adjacent time periods or time slots.

13. A touch control system, characterized in that: Include: The touch processing device and the touch panel as claimed in any one of claims 7-10.

14. The touch control system according to claim 13, characterized in that: Also includes: At least one stylus among the N stylus pens.

15. The touch control system according to claim 13, characterized in that: The other types of detection mentioned above include one or any combination of the following: Detection of external conductive objects; Detecting whether a large area of ​​conductive liquid covers the touch panel; Detect environmental disturbances; and Power saving hibernation.

16. The touch control system according to claim 13, characterized in that: The embedded processor is also used for: When other types of detection are performed in two adjacent time periods or time slots, other types of detection are also performed in the interval period between the two adjacent time periods or time slots.

17. A touch pen processing method, characterized in that: Include: Receiving the beacon signal via the stylus tip electrode; and At the i-th time slot of the j-th period after the beacon signal is detected, the j-th electrical signal is emitted through the pen tip electrode. Wherein, 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, i is a positive integer, and i is the serial number of the stylus.

18. The stylus pen processing method according to claim 17, characterized in that: The transmission time lengths from the first electrical signal to the Mth electrical signal are the same.

19. A touch pen processing method, characterized in that: Include: The beacon signal is received through the stylus tip electrode; At the i-th time slot of the indication period after the beacon signal is detected, a presence signal is sent through the pen tip electrode; as well as In the i-th period after the beacon signal is detected, an electrical signal is sent through the pen tip electrode. Where i is a positive integer and i is the number of the stylus.

20. The stylus pen processing method according to claim 19, characterized in that: The transmission time length of the presence signal is shorter than the transmission time length of the electrical signal.

21. The stylus pen processing method according to any one of claims 17-20, characterized in that: The invention further comprises sending an electrical signal through a ring electrode of the stylus, wherein the ring electrode is arranged around the pen tip electrode and is electrically insulated from the pen tip electrode.

22. A touch pen, characterized in that: Include: Pen tip electrode; A receiving circuit connected to the pen tip electrode to receive a beacon signal; a transmitting circuit, used for sending an electrical signal through the pen tip electrode; and A processor, connected to the receiving circuit and the transmitting circuit, is used to execute a plurality of instructions stored in a non-volatile memory to implement the following steps: enabling the receiving circuit to detect the beacon signal; At the i-th time slot of the j-th period after the beacon signal is detected, the transmission circuit sends the j-th electrical signal. Wherein, 1<=j<=M, M is a positive integer greater than or equal to 2, j is a positive integer, i is a positive integer, and i is the serial number of the stylus.

23. The stylus pen according to claim 22, characterized in that: The transmission time lengths from the first electrical signal to the Mth electrical signal are the same.

24. A touch pen, characterized in that: Include: Pen tip electrode; A receiving circuit connected to the pen tip electrode to receive a beacon signal; a transmitting circuit, used for sending an electrical signal through the pen tip electrode; and A processor, connected to the receiving circuit and the transmitting circuit, is used to execute a plurality of instructions stored in a non-volatile memory to implement the following steps: enabling the receiving circuit to detect the beacon signal; At the i-th time slot of the indication period after the beacon signal is detected, a presence signal is sent through the pen tip electrode; as well as In the i-th period after the beacon signal is detected, an electrical signal is sent through the pen tip electrode. Where i is a positive integer and i is the number of the stylus.

25. The stylus pen according to claim 24, characterized in that: The transmission time length of the presence signal is shorter than the transmission time length of the electrical signal.

26. The stylus pen according to any one of claims 22-25, characterized in that: It further comprises a ring electrode arranged around the pen tip electrode, the ring electrode is electrically insulated from the pen tip electrode, wherein the transmission circuit is further used to send out an electrical signal through the ring electrode.

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