Transmission system, processor and transmission method
By switching electrode modes and collecting sensing signals when working together between touch devices, the problem of touch devices having difficulty obtaining absolute movement trajectories or rotation angles in the prior art is solved, thereby improving the operating efficiency and energy utilization in application modes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NOVATEK MICROELECTRONICS CORP
- Filing Date
- 2022-01-28
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, touch devices have difficulty efficiently acquiring absolute movement trajectories or absolute rotation angles when operating in conjunction with each other, resulting in low operational efficiency in application modes.
When working together between touch devices, the electrodes of the self-capacitive touch panel switch between transmitting and receiving electrodes in different modes, and the processor collects the sensing signals to obtain the absolute movement trajectory or absolute rotation angle, thereby realizing operation in the application mode.
It improves the operational efficiency and energy utilization efficiency of touch devices in application mode, and simplifies the network connection and resource sharing process between devices.
Smart Images

Figure CN115617207B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a technology related to touch devices. In particular, it relates to a transmission system, processor, and transmission method. Background Technology
[0002] With the development of technology, more and more electronic devices are equipped with touch devices. Generally speaking, touch devices can detect touch events and touch locations, and perform related operations based on the touch location. Summary of the Invention
[0003] Some embodiments disclosed herein relate to a transmission system. The transmission system includes a first touch device and a second touch device. The first touch device is used to cooperate with the second touch device in a touch mode or an application mode. When the first touch device and the second touch device cooperate in the application mode, the first touch device is used to obtain an absolute movement trajectory or an absolute rotation angle of the second touch device and execute an application based on the absolute movement trajectory or absolute rotation angle.
[0004] In some embodiments, the first touch panel and the second touch panel are self-contained.
[0005] In some embodiments, the first touch device includes a first touch panel and a first processor. The first touch panel includes a plurality of first electrodes. The first processor is coupled to the first touch panel. When the first touch device operates in touch mode, each of the first electrodes functions as a transmitting electrode and a receiving electrode. When the first touch device and a second touch device cooperate in application mode, the first electrodes function as receiving electrodes.
[0006] In some embodiments, the second touch device includes a second touch panel and a second processor. The second touch panel includes a plurality of second electrodes. The second processor is coupled to the second touch panel. When the second touch device operates in touch mode, each of the second electrodes functions as a transmitting electrode and a receiving electrode. When the first touch device and the second touch device cooperate in application mode, the second electrodes function as transmitting electrodes.
[0007] In some embodiments, the second touch panel includes a first transmission area, and the second electrodes in the first transmission area are used to output a plurality of first transmission signals having a first frequency.
[0008] In some embodiments, the second touch panel further includes a second transmission area, and the second electrodes in the second transmission area are used to output a plurality of second transmission signals having a second frequency. The second frequency is different from the first frequency.
[0009] In some embodiments, the first transmission area is T-shaped.
[0010] In some embodiments, the second touch panel includes a second transmission area, and the second electrodes in the second transmission area are used to output a plurality of second transmission signals having a second frequency. The second frequency is the same as the first frequency.
[0011] In some embodiments, a first transmission region corresponds to a first digital code, and a second transmission region corresponds to a second digital code. Each bit in the first or second digital code corresponds to a phase.
[0012] In some embodiments, the first transmission area of the second touch panel corresponds to an invisible barcode, the first electrodes of the first touch panel are used to receive a plurality of sensing signals corresponding to the invisible barcode, and the first processor is used to determine whether to unlock the first touch device based on the sensing signals.
[0013] In some embodiments, when the first touch device and the second touch device operate in an application mode, the first processor controls a first group of electrodes among the first electrodes to operate as a receiving electrode, and controls a second group of electrodes among the first electrodes to operate as a dummy electrode.
[0014] Some embodiments disclosed herein relate to a processor. A first touch device and a second touch device operate collaboratively in a touch mode or an application mode. When the first touch device and the second touch device operate collaboratively in the application mode, the processor in the first touch device obtains an absolute movement trajectory or an absolute rotation angle of the second touch device and executes an application based on the absolute movement trajectory or absolute rotation angle.
[0015] In some embodiments, the processor is used to collect multiple sensing signals received by multiple electrodes in the first touch device to obtain the absolute movement trajectory or absolute rotation angle of the second touch device.
[0016] Some embodiments disclosed herein relate to a processor. A first touch device and a second touch device operate collaboratively in a touch mode or an application mode. When the first touch device and the second touch device operate collaboratively in the application mode, the processor in the second touch device controls a touch panel in the second touch device to include a first transmission area, and controls multiple electrodes in the first transmission area to output multiple first transmission signals having a first frequency, so that the first touch device can obtain an absolute movement trajectory or an absolute rotation angle of the second touch device.
[0017] In some embodiments, the processor controls the touch panel in the second touch device to further include a second transmission area, and controls a plurality of electrodes in the second transmission area to output a plurality of second transmission signals having a second frequency. The second frequency is different from the first frequency.
[0018] In some embodiments, the processor controls the touch panel in the second touch device to further include a second transmission area, and controls a plurality of electrodes in the second transmission area to output a plurality of second transmission signals having a second frequency. The second frequency is the same as the first frequency.
[0019] In some embodiments, the processor controls a first transmission region to correspond to a first digital code and a second transmission region to correspond to a second digital code. Each bit in the first or second digital code corresponds to a phase.
[0020] Some embodiments disclosed herein relate to a transmission method. The transmission method includes the following operations: cooperating with a first touch device and a second touch device in a touch mode or an application mode; when the first touch device and the second touch device are cooperating in the application mode, obtaining an absolute movement trajectory or an absolute rotation angle of the second touch device through the first touch device; and executing an application through the first touch device based on the absolute movement trajectory or absolute rotation angle.
[0021] In some embodiments, the transmission method further includes: controlling a plurality of first electrodes in the first touch device to operate as receiving electrodes via a first processor in the first touch device.
[0022] In some embodiments, the transmission method further includes: controlling a plurality of second electrodes in the second touch device to operate as transmission electrodes via a second processor in the second touch device. Attached Figure Description
[0023] To make the above and other objects, features, advantages and embodiments disclosed herein more apparent and understandable, the accompanying drawings are described below:
[0024] Figure 1 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0025] Figure 2 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0026] Figure 3 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0027] Figure 4 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0028] Figure 5 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0029] Figure 6 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0030] Figure 7 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0031] Figure 8 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0032] Figure 9 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0033] Figure 10 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0034] Figure 11 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0035] Figure 12 This is a schematic diagram of a transmission system illustrated in accordance with some embodiments of this disclosure;
[0036] Figure 13 This is a schematic diagram illustrating an application of a transmission system according to some embodiments of this disclosure;
[0037] Figure 14 This is a schematic diagram illustrating an application of a transmission system according to some embodiments of this disclosure;
[0038] Figure 15 This is a schematic diagram illustrating an application of a transmission system according to some embodiments of this disclosure;
[0039] Figure 16 This is a schematic diagram illustrating an application of a transmission system according to some embodiments of this disclosure;
[0040] Figure 17 This is a schematic diagram illustrating an application of a transmission system according to some embodiments of this disclosure;
[0041] Figure 18 This is a schematic diagram of a touch device illustrated according to some embodiments of the present disclosure; and
[0042] Figure 19 This is a flowchart illustrating a touch method according to some embodiments of the present disclosure.
[0043] [Symbol Explanation]
[0044] 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700: Transmission System
[0045] 110, 120, 1310, 1320, 1410, 1420, 1510, 1520, 1610, 1620, 1710, 1720, 1820: Touchscreen device
[0046] 111,121,211,221,311,321,411,421,511,521,611,621,711,721,811,821,911,921,1011,1021,1111,1121,1211,1221,1821: Touch panel
[0047] 112,122: Processor
[0048] 2111,2211,3111,3211,4111,4211,5111,5211,6111,6211,7111,7211,8111,8211,9111,9211,10111,10211,11111,11211,12111,12211,18211: Electrode
[0049] 1900: Transmission Method
[0050] A2, A31, A32, A4, A51, A52, A53, A61, A62, A7, A8, A9, A10, A11, A12, A18: Transmission Area
[0051] E1, E2, F1, F2, G1, G2: Electrode groups
[0052] C: Network Connection
[0053] S1910, S1920, S1930: Operation Detailed Implementation
[0054] The term "coupled" as used in this article can also refer to "electrical coupling," and the term "connection" can also refer to "electrical connection." "Coupled" and "connection" can also refer to two or more components cooperating or interacting with each other.
[0055] refer to Figure 1 . Figure 1 This is a schematic diagram of a transmission system 100 illustrated in accordance with some embodiments of this disclosure.
[0056] by Figure 1For example, the transmission system 100 includes a touch device 110 and a touch device 120. In this example, the touch device 110 is a tablet computer and the touch device 120 is a smartphone, but this disclosure is not limited thereto. In some embodiments, the touch device 110 or the touch device 120 may be a notebook computer, an in-vehicle display device, or other touch-enabled devices. The touch device 110 has a touch panel 111 and a processor (e.g., a touch panel sensor chip (TDDI)) 112, and the processor 112 is coupled to the touch panel 111. The touch device 120 has a touch panel 121 and a processor (e.g., a touch panel sensor chip (TDDI)) 122, and the processor 122 is coupled to the touch panel 121. The touch panels 111 and 121 are embedded and self-contained structures. In other words, the electrodes in the touch panel 111 (121) are disposed on a single layer.
[0057] Touch device 110 or touch device 120 can operate in a first mode (general touch mode) or a second mode (application mode / non-touch mode).
[0058] When the touch device 110 (120) operates independently and in a normal touch mode, the processor 112 (122) can determine the touch events on the touch panel 111 (121). In other words, the electrodes in the touch panel 111 (121) can act as transmission electrodes in a first time interval and as receiving electrodes in a second time interval.
[0059] Additionally, touch devices 110 and 120 can operate collaboratively in an application mode. In some embodiments, touch panel 121 is in contact with touch panel 111 in a face-to-face (e.g., panel-to-panel) manner. In some other embodiments, touch panel 121 is very close to touch panel 111 in a face-to-face (e.g., panel-to-panel) manner. For example, when touch panel 121 is in contact with or very close to touch panel 111 in a face-to-face (e.g., panel-to-panel) manner and there is movement or rotation (movement trajectory or rotation angle) between touch panel 121 and touch panel 111, processor 112 can execute an application based on this movement trajectory or rotation angle. As described above, since touch panel 111 and touch panel 121 are embedded and self-contained structures, processor 112 can obtain the absolute movement trajectory or absolute rotation angle of touch panel 121 and execute an application based on this absolute movement trajectory or absolute rotation angle.
[0060] As mentioned earlier, touch panels 111 and 121 have a self-capacitive structure. That is, each electrode (at each position) on touch panels 111 and 121 can independently transmit or receive signals. Accordingly, for processor 112, each electrode on touch panel 111 has an absolute position (absolute coordinates). For processor 122, each electrode on touch panel 121 has an absolute position (absolute coordinates).
[0061] In this architecture, when the touch device 120 is in the transmitting state and some electrodes on the touch panel 121 emit transmission signals, the touch device 110 will be in the receiving state and some electrodes on the touch panel 111 will receive corresponding sensing signals. The processor 112 of the touch device 110 can obtain the absolute movement trajectory or absolute rotation angle based on the changes in the absolute position (absolute coordinates) of these electrodes that have received sensing signals.
[0062] refer to Figure 2 . Figure 2 This is a schematic diagram of a transmission system 200 illustrated according to some embodiments of the present disclosure. In some embodiments, Figure 2 The transmission system 200 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0063] The transmission system 200 includes a touch panel 211 and a touch panel 221. As described above, the two touch devices can operate collaboratively in application mode. Figure 2 For example, the electrodes 2211 in the touch panel 221 correspond to a specific pattern. Figure 2 In this configuration, the specific pattern corresponds to a transmission area A2, and the transmission area A2 is square. Electrode 2211 in the transmission area A2 functions as a transmission electrode to emit a transmission signal with a first frequency, and electrode 2111 in the touch panel 211 functions as a receiving electrode to receive a sensing signal. In some embodiments, the touch device with touch panel 211 and the touch device with touch panel 221 can pre-execute a handshake procedure to determine which device functions as the transmitter, which device functions as the receiver, the shape of the transmission area A2, and the frequency value of the first frequency.
[0064] When touch panel 221 touches or comes very close to touch panel 211 and there is movement between touch panel 221 and touch panel 211, electrodes 2111 in touch panel 211 can receive sensing signals. A processor coupled to touch panel 211 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 221 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory.
[0065] Based on the above description, in this configuration, when the two touch devices operate independently in normal touch mode, the electrodes in the two touch panels can function as both transmission electrodes (e.g., as transmission electrodes for a first period of time) and reception electrodes (e.g., as reception electrodes for a second period of time). When the two touch devices operate collaboratively in application mode, the electrodes in one touch panel function as transmission electrodes, while the electrodes in the other touch panel function as reception electrodes.
[0066] refer to Figure 3 . Figure 3 This is a schematic diagram of a transmission system 300 illustrated according to some embodiments of the present disclosure. In some embodiments, Figure 3 The transmission system 300 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0067] Figure 3 Touch panels 311 and 321 are similar to Figure 2 The touch panel 211 and touch panel 221 are included. Figure 3 and Figure 2 One key difference is that the electrodes 3211 in the touch panel 321 correspond to a specific pattern, which in turn corresponds to two transmission areas A31 and A32. Each of transmission areas A31 and A32 is square. The electrodes 3211 in transmission area A31 can emit a transmission signal with a first frequency, while the electrodes 3211 in transmission area A32 can emit a transmission signal with a second frequency, which is different from the first frequency. In other words, different transmission areas can emit transmission signals of different frequencies. In some embodiments, the touch device containing touch panel 311 and the touch device containing touch panel 321 can pre-execute a handshake procedure to determine which device operates as the transmitter, which device operates as the receiver, the shape of transmission areas A31-A32, the frequency value of the first frequency, and the frequency value of the second frequency.
[0068] by Figure 3 For example, when touch panel 321 touches or comes very close to touch panel 311 and there is rotation between touch panel 321 and touch panel 311, electrodes 3111 in touch panel 311 can receive sensing signals. A processor coupled to touch panel 311 can collect these sensing signals and obtain the absolute rotation angle of touch panel 321 based on these collected sensing signals. Then, the processor can execute an application based on this absolute rotation angle.
[0069] refer to Figure 4 . Figure 4 This is a schematic diagram of a transmission system 400 illustrated according to some embodiments of the present disclosure. In some embodiments, Figure 4The transmission system 400 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0070] Figure 4 The touch panel 411 and touch panel 421 are similar. Figure 3 The touch panel 311 and touch panel 321 are included. Figure 4 and Figure 3 One of the main differences is that the electrodes 4211 in the touch panel 421 correspond to a specific pattern, which corresponds to a transmission area A4. The transmission area A4 is T-shaped, and the electrodes 4211 in the transmission area A4 can emit a transmission signal with a first frequency. In some embodiments, the touch device where the touch panel 411 is located and the touch device where the touch panel 421 is located can perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission area A4, and the frequency value of the first frequency.
[0071] by Figure 4 For example, when touch panel 421 touches or is very close to touch panel 411 and there is rotation between touch panel 421 and touch panel 411, electrodes 4111 in touch panel 411 can receive sensing signals. A processor coupled to touch panel 411 can collect these sensing signals and obtain the absolute rotation angle of touch panel 421 based on these collected sensing signals. Then, the processor can execute an application based on this absolute rotation angle.
[0072] refer to Figure 5 . Figure 5 This is a schematic diagram of a transmission system 500 illustrated according to some embodiments of the present disclosure. In some embodiments, Figure 5 The transmission system 500 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0073] Figure 5 Touch panels 511 and 521 are similar to Figure 3 The touch panel 311 and touch panel 321 are included. Figure 5 and Figure 3One key difference is that the electrodes 5211 in the touch panel 521 correspond to a specific pattern that corresponds to more than two transmission areas (e.g., three transmission areas A51-A53), each of which is square, and the electrodes 5211 in the transmission areas A51-A53 can emit transmission signals with a first frequency (the same frequency). In some embodiments, the touch device with touch panel 511 and the touch device with touch panel 521 can perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission areas A51-A53, and the frequency value of the first frequency.
[0074] by Figure 5 For example, when touch panel 521 touches or comes very close to touch panel 511 and there is rotation between touch panel 521 and touch panel 511, electrodes 5111 in touch panel 511 can receive sensing signals. A processor coupled to touch panel 511 can collect these sensing signals and obtain the absolute rotation angle of touch panel 521 based on these collected sensing signals. Then, the processor can execute an application based on this absolute rotation angle.
[0075] refer to Figure 6 . Figure 6 This is a schematic diagram of a transmission system 600 illustrated according to some embodiments of the present disclosure. In some embodiments, Figure 6 The transmission system 600 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0076] Figure 6 The touch panels 611 and 621 are similar to Figure 3The touch panel 311 and touch panel 321 are described. Electrodes 6211 in touch panel 321 correspond to a specific pattern corresponding to two transmission areas A61 and A62. Each of transmission areas A61 and A62 is square. Electrodes 6211 in transmission area A61 can emit a transmission signal with a first frequency and a first digital code, while electrodes 6211 in transmission area A62 can emit a transmission signal with a first frequency and a second digital code. In other words, different transmission areas A61-A62 emit transmission signals with the same frequency but different digital codes. Different digital codes correspond to different phase combinations. For example, the first digital code is "101" and the second digital code is "111". In some embodiments, the phase of the digital value "1" differs from the phase of the digital value "0" by 180 degrees. In some embodiments, the touch device where the touch panel 611 is located and the touch device where the touch panel 621 is located may perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission areas A61-A62, the frequency value of the first frequency, and the aforementioned digital codes.
[0077] by Figure 6 For example, when touch panel 621 touches or is very close to touch panel 611 and there is rotation between touch panel 621 and touch panel 611, electrodes 6111 in touch panel 611 can receive sensing signals. A processor coupled to touch panel 611 can collect these sensing signals and obtain the absolute rotation angle of touch panel 621 based on these collected sensing signals. Then, the processor can execute an application based on this absolute rotation angle.
[0078] refer to Figure 7 . Figure 7 This is a schematic diagram of a transmission system 700 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 7 The transmission system 700 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0079] Figure 7 The touch panels 711 and 721 are similar to Figure 2 The touch panel 721 and touch panel 721 are described. The electrodes 7211 in touch panel 721 correspond to a specific pattern, which is similar to... Figure 2 .by Figure 7 For example, this particular pattern corresponds to a transmission area A7, which is square, and the electrode 7211 in the transmission area A7 can emit a transmission signal with a first frequency. Figure 7 and Figure 2 One of the main differences between them is that, Figure 7In this configuration, electrodes 7111 in some columns (enabled) can receive sensing signals, while electrodes 7111 in other columns (disabled) cannot receive sensing signals. For example, electrodes 7111 in odd-numbered columns can receive sensing signals, while electrodes 7111 in even-numbered columns cannot. In other words, electrodes 7111 in odd-numbered columns function as receiving electrodes, while electrodes 7111 in even-numbered columns function as dummy electrodes. In some embodiments, the touch device with touch panel 711 and the touch device with touch panel 721 can perform a handshake procedure in advance to determine which device functions as the transmitter, which device functions as the receiver, the shape of the transmission area A7, the frequency value of the first frequency, and which electrodes 7111 are enabled.
[0080] by Figure 7 For example, when touch panel 721 contacts or is very close to touch panel 711 and there is rotation between touch panel 721 and touch panel 7111, electrodes 7111 located in the odd-numbered columns can receive sensing signals. A processor coupled to touch panel 711 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 721 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy can be saved.
[0081] refer to Figure 8 . Figure 8 This is a schematic diagram of a transmission system 800 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 8 The transmission system 800 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0082] Figure 8 The touch panels 811 and 821 are similar to Figure 7 The touch panel 711 and touch panel 721 are described. The electrode 8211 in touch panel 721 corresponds to a specific pattern, which is similar to... Figure 7 .by Figure 8 For example, this particular pattern corresponds to a transmission area A8, which is square, and the electrode 8211 in the transmission area A8 can emit a transmission signal with a first frequency. Figure 8 and Figure 7 One of the main differences between them is that, Figure 8In this configuration, electrodes 8111 located in some rows (enabled) can receive sensing signals, while electrodes 8111 located in other rows (disabled) cannot receive sensing signals. For example, electrodes 8111 located in odd-numbered rows can receive sensing signals, while electrodes 8111 located in even-numbered rows cannot receive sensing signals. In other words, electrodes 8111 located in odd-numbered rows function as receiving electrodes, while electrodes 8111 located in even-numbered rows function as dummy electrodes. In some embodiments, the touch device where the touch panel 811 is located and the touch device where the touch panel 821 is located can perform a handshake procedure in advance to determine which device functions as the transmitter, which device functions as the receiver, the shape of the transmission area A8, the frequency value of the first frequency, and which electrodes 8111 are enabled.
[0083] by Figure 8 For example, when touch panel 821 contacts or is very close to touch panel 811 and there is movement between touch panel 821 and touch panel 811, electrodes 8111 located in the odd-numbered rows can receive sensing signals. A processor coupled to touch panel 811 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 821 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy can be saved.
[0084] refer to Figure 9 . Figure 9 This is a schematic diagram of a transmission system 900 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 9 The transmission system 900 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0085] Figure 9 The touch panels 911 and 921 are similar to Figure 8 The touch panel 811 and touch panel 821 are described. The electrode 9211 in touch panel 821 corresponds to a specific pattern, which is similar to... Figure 8 .by Figure 9 For example, this particular pattern corresponds to a transmission area A9, which is square, and the electrode 9211 in the transmission area A9 can emit a transmission signal with a first frequency. Figure 9 and Figure 8 One of the main differences between them is that, Figure 9In this configuration, some electrodes 9111 (enabled) at certain locations can receive sensing signals, while electrodes 9111 (disabled) at other locations cannot receive sensing signals. For example, the electrode 9111 with coordinates (1+2M, 1+2N) can receive sensing signals, while other electrodes 9111 cannot, where M and N are 0 or positive integers. In other words, the electrode 9111 with coordinates (1+2M, 1+2N) functions as a receiving electrode, while other electrodes 9111 function as dummy electrodes. In some embodiments, the touch device where the touch panel 911 is located and the touch device where the touch panel 921 is located can perform a handshake procedure in advance to determine which device functions as the transmitter, which device functions as the receiver, the shape of the transmission area A9, the frequency value of the first frequency, and which electrodes 9111 are enabled.
[0086] by Figure 9 For example, when touch panel 921 contacts or is very close to touch panel 911 and there is movement between touch panel 921 and touch panel 9111, electrode 9111 with coordinates (1+2M, 1+2N) can receive sensing signals. A processor coupled to touch panel 911 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 921 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy can be saved.
[0087] refer to Figure 10 . Figure 10 This is a schematic diagram of a transmission system 1000 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 10 The transmission system 1000 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0088] Figure 10 The touch panels 1011 and 1021 are similar to Figure 2 The touch panel 211 and touch panel 221 are described. The electrode 10211 in touch panel 1021 corresponds to a specific pattern, which is similar to... Figure 2 .by Figure 10 For example, this particular pattern corresponds to a transmission area A10, which is square, and the electrode 10211 in the transmission area A10 can emit a transmission signal with a first frequency. Figure 10 and Figure 2 One of the main differences between them is that, Figure 10In this configuration, every two electrodes 10111 in a first direction (e.g., horizontal direction) are connected. For example, one electrode 10111 in the first column is connected to its adjacent electrode 10111 in the second column to form a first electrode group E1. One electrode 10111 in the third column is connected to its adjacent electrode 10111 in the fourth column to form a second electrode group E2. And so on. In some embodiments, the touch device where the touch panel 1011 is located and the touch device where the touch panel 1021 is located may perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission area A10, the frequency value of the first frequency, and the configuration of the electrode groups E1-E2.
[0089] by Figure 10 For example, when touch panel 1021 contacts or is very close to touch panel 1011 and there is movement between touch panel 1021 and touch panel 1011, the electrode groups on touch panel 1011 can receive sensing signals. A processor coupled to touch panel 1011 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 1021 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy and processing time can be saved.
[0090] refer to Figure 11 . Figure 11 This is a schematic diagram of a transmission system 1100 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 11 The transmission system 1100 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0091] Figure 11 The touch panel 1111 and touch panel 1121 are similar to Figure 2 The touch panel 211 and touch panel 221 are described. The electrodes 11211 in touch panel 1121 correspond to a specific pattern, which is similar to... Figure 2 .by Figure 11 For example, this particular pattern corresponds to a transmission area A11, which is square, and the electrode 11211 in the transmission area A11 can emit a transmission signal with a first frequency. Figure 11 and Figure 2 One of the main differences between them is that, Figure 11In this configuration, every two electrodes 11111 in the second direction (e.g., the vertical direction) are connected. For example, one electrode 11111 in the first row is connected to its adjacent electrode 11111 in the second row to form a first electrode group F1. One electrode 11111 in the third row is connected to its adjacent electrode 11111 in the fourth row to form a second electrode group F2. And so on. In some embodiments, the touch device where the touch panel 1111 is located and the touch device where the touch panel 1121 is located may perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission area A11, the frequency value of the first frequency, and the configuration of the electrode groups F1-F2.
[0092] by Figure 11 For example, when touch panel 1121 touches or is very close to touch panel 1111 and there is movement between touch panel 1121 and touch panel 1111, the electrode groups in touch panel 1111 can receive sensing signals. A processor coupled to touch panel 1111 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 1121 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy and processing time can be saved.
[0093] refer to Figure 12 . Figure 12 This is a schematic diagram of a transmission system 1200 illustrated according to some embodiments of this disclosure. In some embodiments, Figure 12 The transmission system 1200 in the middle can be used to implement Figure 1 The transmission system 100 in the middle.
[0094] Figure 12 The touch panel 1211 and touch panel 1221 are similar to Figure 2 The touch panel 211 and touch panel 221 are described. The electrodes 12211 in touch panel 1221 correspond to a specific pattern, which is similar to... Figure 2 .by Figure 12 For example, this particular pattern corresponds to a transmission area A12, which is square, and the electrode 12211 in the transmission area A12 can emit a transmission signal with a first frequency. Figure 12 and Figure 2 One of the main differences between them is that, Figure 12In this configuration, every four electrodes 12111 are connected together. For example, the electrode 12111 located in the first column and first row, its adjacent electrode 12111 located in the first column and first row, its adjacent electrode 12111 located in the second column and second row, and its adjacent electrode 12111 located in the second column and second row are connected to form a first electrode group G1. The electrode 12111 located in the first column and third row, its adjacent electrode 12111 located in the second column and third row, its adjacent electrode 12111 located in the first column and fourth row, and its adjacent electrode 12111 located in the second column and fourth row are connected to form a second electrode group G2. And so on. In some embodiments, the touch device where the touch panel 1211 is located and the touch device where the touch panel 1221 is located can perform a handshake procedure in advance to determine which device operates as the transmitter, which device operates as the receiver, the shape of the transmission area A12, the frequency value of the first frequency, and the configuration of the electrode groups G1-G2.
[0095] by Figure 12 For example, when touch panel 1221 touches or is very close to touch panel 1211 and there is movement between touch panel 1221 and touch panel 1211, the electrode groups in touch panel 1211 can receive sensing signals. A processor coupled to touch panel 1211 can collect these sensing signals and obtain the absolute movement trajectory of touch panel 1221 based on these collected sensing signals. Then, the processor can execute an application based on this absolute movement trajectory. In this embodiment, energy and processing time can be saved.
[0096] refer to Figure 13 . Figure 13 This is a schematic diagram illustrating an application of the transmission system 1300 according to some embodiments of the present disclosure. The transmission system 1300 can be used to implement one of the aforementioned transmission systems 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, and 1200.
[0097] by Figure 13 For example, the transmission system 1300 includes a touch device 1310 and a touch device 1320. In this example, the touch device 1310 is a tablet computer and the touch device 1320 is a smartphone, but this disclosure is not limited thereto.
[0098] As described above, touch device 1310 and touch device 1320 can cooperate to operate in application mode. For example, when the panel of touch device 1320 contacts or is very close to the panel of touch device 1310 and there is movement or rotation (absolute movement trajectory or absolute rotation angle) between touch device 1320 and touch device 1310, touch device 1310 can execute an application according to this absolute movement trajectory or absolute rotation angle. Figure 13 In this application, images (e.g., videos) on the screen of touch device 1320 can be projected onto the screen of touch device 1310. Thus, the user can view images (e.g., videos) on a larger screen on touch device 1310.
[0099] refer to Figure 14 . Figure 14 This is a schematic diagram illustrating an application of the transmission system 1400 according to some embodiments of the present disclosure. The transmission system 1400 can be used to implement one of the aforementioned transmission systems 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, and 1200.
[0100] by Figure 14 For example, the transmission system 1400 includes a touch device 1410 and a touch device 1420. In this example, the touch device 1410 is a tablet computer and the touch device 1420 is a smartphone, but this disclosure is not limited thereto.
[0101] As described above, touch device 1410 and touch device 1420 can operate collaboratively in application mode. For example, when the panel of touch device 1420 touches or is very close to the panel of touch device 1410 and there is movement or rotation (absolute movement trajectory or absolute rotation angle) between touch device 1420 and touch device 1410, a network connection (e.g., Wi-Fi technology) between touch device 1420 and touch device 1410 can be quickly established based on this absolute movement trajectory or absolute rotation angle. In some related technologies, it is necessary to turn on the hotspot of one device, and the other device needs to search for this hotspot and enter a password to establish a network connection between the two. These operations will consume a lot of time. Compared with these related technologies, the network connection C (e.g., Wi-Fi technology) between touch device 1420 and touch device 1410 can be quickly established by moving or rotating touch device 1420 on touch device 1410. Once this network connection C (e.g., WIFI technology) is established, the touch device 1410 can use the network resources (e.g., 4G technology) of the touch device 1420 through this network connection C (e.g., WIFI technology).
[0102] refer to Figure 15 . Figure 15 This is a schematic diagram illustrating an application of the transmission system 1500 according to some embodiments of the present disclosure. The transmission system 1500 can be used to implement one of the aforementioned transmission systems 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, and 1200.
[0103] by Figure 15 For example, the transmission system 1500 includes a touch device 1510 and a touch device 1520. In this example, the touch device 1510 is a tablet computer and the touch device 1520 is a smartphone, but this disclosure is not limited thereto.
[0104] As described above, touch device 1510 and touch device 1520 can cooperate to operate in application mode. For example, when the panel of touch device 1520 contacts or is very close to the panel of touch device 1510 and there is movement or rotation (absolute movement trajectory or absolute rotation angle) between touch device 1520 and touch device 1510, touch device 1510 can execute an application according to this absolute movement trajectory or absolute rotation angle. Figure 15 In this application, a touch device 1520 (e.g., a smaller touch device) can be used to capture a screenshot of a touch device 1510 (e.g., a larger touch device), and the range of the screenshot corresponds to the range of this absolute movement trajectory or this absolute rotation angle.
[0105] refer to Figure 16 . Figure 16 This is a schematic diagram illustrating an application of the transmission system 1600 according to some embodiments of the present disclosure. The transmission system 1600 can be used to implement one of the aforementioned transmission systems 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, and 1200.
[0106] by Figure 16 For example, the transmission system 1600 includes a touch device 1610 and a touch device 1620. In this example, the touch device 1610 is a tablet computer and the touch device 1620 is a smartphone, but this disclosure is not limited thereto.
[0107] As described above, touch device 1610 and touch device 1620 can operate in cooperation to perform an application mode. For example, when the panel of touch device 1620 contacts or is very close to the panel of touch device 1610 and there is movement or rotation (absolute movement trajectory or absolute rotation angle) between touch device 1620 and touch device 1610, touch device 1610 can execute an application according to this absolute movement trajectory or absolute rotation angle. Figure 16 In this application, touch device 1610 (e.g., a larger touch device) can display the webpage displayed by touch device 1620 (e.g., a smaller touch device). Thus, the user can browse webpages from the larger screen on touch device 1610.
[0108] refer to Figure 17 . Figure 17 This is a schematic diagram illustrating an application of the transmission system 1700 according to some embodiments of the present disclosure. The transmission system 1700 can be used to implement one of the aforementioned transmission systems 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, and 1200.
[0109] by Figure 17 For example, the transmission system 1700 includes a touch device 1710 and a touch device 1720. In this example, the touch device 1710 is a tablet computer and the touch device 1720 is a smartphone, but this disclosure is not limited thereto.
[0110] As described above, touch device 1710 and touch device 1720 can operate in cooperation to perform an application mode. For example, when the panel of touch device 1720 contacts or is very close to the panel of touch device 1710 and there is movement or rotation (absolute movement trajectory or absolute rotation angle) between touch device 1720 and touch device 1710, touch device 1710 can perform an application according to this absolute movement trajectory or absolute rotation angle. Figure 17 In this application, touch device 1710 can perform an authentication unlocking procedure based on a specific movement trajectory or rotation angle of touch device 1720. For example, when touch device 1720 moves along... Figure 17 When moving along the path on the upper left, the touch device 1710 can be logged in or unlocked, but when the touch device 1720 moves along... Figure 17While moving along the path on the upper right, the touch device 1710 cannot be logged in or unlocked. In this method, less data is transmitted, and the touch device 1710 can analyze different movement trajectories or rotation angles to determine different usernames or passwords. Furthermore, since these usernames or passwords (different movement trajectories or rotation angles) are not typed on the screen, security is high. In some embodiments, this method can be combined with other information (e.g., fingerprints) to achieve a dual unlocking mechanism.
[0111] refer to Figure 18 . Figure 18 This is a schematic diagram illustrating a touch device 1820 according to some embodiments of the present disclosure. In some embodiments, the touch device 1820 (e.g., a mobile phone) can be used to implement... Figure 17 The touch device 1720 in the middle can be used to unlock the touch device 1710 (e.g., a smart TV) or even enable the touch device 1710 to log in to specific services (e.g., login information with an invisible barcode that can carry a URL).
[0112] by Figure 18 For example, touch device 1820 includes touch panel 1821, and touch panel includes electrodes 18211. Figure 18 For example, electrode 18211 corresponds to a specific pattern, and this specific pattern is an invisible barcode. Specifically, electrode 18211, indicated in dark, forms multiple transmission areas A18, and these transmission areas A18 form an invisible barcode. In application mode, electrode 18211, indicated in dark, can operate as a transmission electrode to transmit transmission signals, while electrode 18211, indicated in white, cannot transmit transmission signals.
[0113] Because users cannot see the shape of the invisible barcode, it is more secure than other visible barcodes (e.g., 1D barcodes, QR codes).
[0114] How to generate invisible barcodes will be described in the following paragraphs.
[0115] In some embodiments, an application in the touch device 1820 may generate this invisible barcode based on the touch chip in the touch device 1820. This invisible barcode can be recognized by the same touch chip or other compatible touch chips.
[0116] In some other embodiments, an application in the touch device 1820 may generate this invisible barcode based on authentication information sent by the server and an identification code in the touch device 1820.
[0117] In some other embodiments, an application in the touch device 1820 may generate the invisible barcode based on the touch chip in the touch device 1820 and an operation by the user (the operation is determined by the user and is not limited to an unlocking operation).
[0118] The following explanation will use the unlocking process as an example.
[0119] The touch device (master device) 1820 can use an invisible barcode to unlock another touch device (slave device). In this application, the master device is the invisible barcode transmitter, and the slave device is the invisible barcode receiver. That is, electrodes on the touch panel of the slave device can receive corresponding sensing signals, and the processor in the slave device can determine whether to unlock based on these sensing signals.
[0120] In some embodiments, the main device may be a mobile phone, which can use an invisible barcode to unlock a smart TV. In some other embodiments, the main device may be a smartwatch, which uses an invisible barcode to unlock a mobile phone or a door lock with a touch panel. However, this disclosure is not limited to the foregoing.
[0121] In some related technologies, if a user wants to log in to a secondary device using an invisible barcode on a primary device (or if the user shares the primary device's login information with the secondary device so that the secondary device can automatically log in to a specific service), the user must first unlock the secondary device and then control the secondary device to log in to the specific service. Compared to these related technologies, the invisible barcode on the primary device disclosed herein can be used to unlock the secondary device and enable the secondary device to automatically log in to a specific service. Specifically, the primary device can transmit unlock information and login information (e.g., a URL) to the processing chip (e.g., a touch chip or display chip) in the secondary device using an invisible barcode, and the processing chip in the secondary device can directly connect to the specific service based on the login information (e.g., a URL).
[0122] The first communication method between the master and slave devices is as follows: The slave device periodically sends requests to the master device. The master device responds to these requests by sending an acknowledgment signal (ACK). Once the slave device detects and receives this acknowledgment signal, it can communicate with the master device. For example, information about invisible barcodes can be transmitted between the master and slave devices. This information includes format, encoding information, transmission frequency, clock rate, or other information. When the slave device receives this information and authentication between the two devices is confirmed, the transmission of the aforementioned information will cease, and the slave device can decode this information and perform corresponding operations.
[0123] The second communication method between the master device and the slave device is as follows: The master device's wireless system can transmit parameters to the slave device's wireless system. The master device's wireless system can be Bluetooth or a near-field communication module, while the slave device's wireless system can be a touch panel used to transmit or receive radio frequency signals. When the slave device receives these parameters, it can perform the corresponding operation.
[0124] In another embodiment, the master device can be a wearable electronic device, such as a smart bracelet or smartwatch. The slave device can be a networked electronic device with touch functionality, such as a computer, display device, multimedia interactive machine, touch-sensitive keypad lock, etc.
[0125] Users can first identify their fingerprints via the touch panel of a wearable electronic device. Based on the user's needs, a processor within the wearable device generates an invisible barcode based on the user's fingerprint characteristics and uploads this barcode to a server. The slave device periodically checks with the server to confirm the existence of information corresponding to that slave device. Once the slave device retrieves the invisible barcode from the server, a controller within the slave device interprets the function corresponding to the barcode. When the touch panel of the slave device detects a match with the invisible barcode on the master device, the slave device executes the corresponding function.
[0126] Specifically, the user first touches the fingerprint recognition touch panel on their smartwatch. The processor inside the smartwatch generates a corresponding invisible barcode and uploads it to a server. Next, the user brings the smartwatch close to the touch panel of a touch-sensitive combination lock on a gate. When the touch panel receives the invisible barcode, it unlocks the gate. In another embodiment, the user uses an app within the smartwatch corresponding to an electric vehicle and generates an invisible barcode using their fingerprint to start the vehicle. When the user brings the invisible barcode close to a touch panel on the electric vehicle, a processor inside the vehicle confirms the code, and the vehicle is started.
[0127] The aforementioned method can store the user's password-related information in a self-defined master device, avoiding the presence of the user's confidential information on every slave device and reducing the possibility of confidential information being leaked from slave devices.
[0128] refer to Figure 19 . Figure 19 This is a flowchart illustrating a touch method 1900 according to some embodiments of this disclosure. Figure 19 For example, touch method 1900 includes operations S1910, S1920, and S1930. For ease of understanding, the following will be used in conjunction with... Figure 1 The transmission system 100 describes the touch method 1900, but this disclosure does not use it as a basis for further discussion. Figure 1 The transmission system is limited to 100.
[0129] In operation S1910, touch device 110 and touch device 120 cooperate in touch mode or application mode. For example, when touch device 110 or touch device 120 operates independently and in general touch mode, touch device 110 or touch device 120 can detect touch events on its panel.
[0130] When touch device 110 and touch device 120 work together in application mode, such as in operation S1920, touch device 110 can obtain the absolute movement trajectory or absolute rotation angle of touch device 120.
[0131] In operation S1930, an application is executed via the touch device 110 based on an absolute movement trajectory or an absolute rotation angle. For example, the aforementioned application could be... Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 or Figure 18 Applications in [the context of the text].
[0132] In summary, in this disclosure, the two touch devices can perform various applications based on the absolute movement trajectory or absolute rotation angle between them. Accordingly, various applications can be completed using a simpler and more convenient operating method.
[0133] Although this disclosure has been described above with reference to embodiments, it is not intended to limit this disclosure. Any person skilled in the art can make various modifications and refinements without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of this disclosure shall be determined by the scope defined in the appended claims.
Claims
1. A transmission system, characterized in that, Include: A first touch device includes a first touch panel, the first touch panel including a plurality of first electrodes; and A second touch device includes a second touch panel, the second touch panel including a plurality of second electrodes. The first touch device is used to work in conjunction with the second touch device in a touch mode or an application mode. When the first touch device and the second touch device work together in the application mode, the second electrodes in a first transmission area of the second touch panel are used to output a plurality of first transmission signals with a first frequency. The first touch device is used to obtain an absolute movement trajectory or an absolute rotation angle of the second touch device and execute an application based on the absolute movement trajectory or the absolute rotation angle.
2. The transmission system according to claim 1, characterized in that, The first touch panel and the second touch panel are self-contained.
3. The transmission system according to claim 1, characterized in that, The first touch device also includes: A first processor is coupled to the first touch panel. When the first touch device operates in the touch mode, each of the first electrodes functions as a transmitting electrode and a receiving electrode. When the first touch device and the second touch device work together in the application mode, the first electrodes function as receiving electrodes.
4. The transmission system according to claim 3, characterized in that, The second touch device also includes: A second processor is coupled to the second touch panel. When the second touch device operates in the touch mode, each of the second electrodes functions as a transmitting electrode and a receiving electrode. When the first touch device and the second touch device work together in the application mode, the second electrodes function as transmission electrodes.
5. The transmission system according to claim 4, characterized in that, The second touch panel further includes a second transmission area, and the second electrodes in the second transmission area are used to output a plurality of second transmission signals having a second frequency, wherein the second frequency is different from the first frequency.
6. The transmission system according to claim 4, characterized in that, The first transmission area is T-shaped.
7. The transmission system according to claim 4, characterized in that, The second touch panel includes a second transmission area, and the second electrodes in the second transmission area are used to output a plurality of second transmission signals having a second frequency, wherein the second frequency is the same as the first frequency.
8. The transmission system according to claim 7, characterized in that, The first transmission area corresponds to a first digital code, and the second transmission area corresponds to a second digital code, wherein each bit in the first digital code or the second digital code corresponds to a phase.
9. The transmission system according to claim 4, characterized in that, The first transmission area of the second touch panel corresponds to an invisible barcode, the first electrodes of the first touch panel are used to receive multiple sensing signals corresponding to the invisible barcode, and the first processor is used to determine whether to unlock the first touch device based on the sensing signals.
10. The transmission system according to claim 1, characterized in that, When the first touch device and the second touch device work together in the application mode, the first processor controls a first group of electrodes among the first electrodes to operate as receiving electrodes, and controls a second group of electrodes among the first electrodes to operate as dummy electrodes.
11. A processor, characterized in that, One of the first touch devices and one of the second touch devices operate in a touch mode or an application mode. When the first touch device and the second touch device operate in the application mode, the processor in the first touch device controls a first group of electrodes among the plurality of electrodes in the first touch device to operate as receiving electrodes and controls a second group of electrodes among the electrodes in the first touch device to operate as dummy electrodes. The processor is further used to obtain an absolute movement trajectory or an absolute rotation angle of the second touch device and execute an application based on the absolute movement trajectory or the absolute rotation angle.
12. The processor according to claim 11, characterized in that, The processor is used to collect multiple sensing signals received by the first set of electrodes in the first touch device to obtain the absolute movement trajectory or the absolute rotation angle of the second touch device.
13. A processor, characterized in that, One of the first touch devices and one of the second touch devices operate in a touch mode or an application mode. When the first touch device and the second touch device operate in the application mode, the processor in the second touch device controls a touch panel in the second touch device to include a first transmission area, and controls multiple electrodes in the first transmission area to output multiple first transmission signals with a first frequency, so that the first touch device can obtain an absolute movement trajectory or an absolute rotation angle of the second touch device.
14. The processor according to claim 13, characterized in that, The processor controls the touch panel of the second touch device to include a second transmission area, and controls multiple electrodes in the second transmission area to output multiple second transmission signals with a second frequency, wherein the second frequency is different from the first frequency.
15. The processor according to claim 13, characterized in that, The processor controls the touch panel of the second touch device to include a second transmission area, and controls multiple electrodes in the second transmission area to output multiple second transmission signals with a second frequency, wherein the second frequency is the same as the first frequency.
16. The processor according to claim 15, characterized in that, The processor controls the first transmission area to correspond to a first digital code and the second transmission area to correspond to a second digital code, wherein each bit in the first digital code or the second digital code corresponds to a phase.
17. A transmission method, characterized in that, Include: The first touch device and the second touch device work together in a touch mode or an application mode, wherein the first touch device includes a first touch panel and the first touch panel includes a plurality of first electrodes, and the second touch device includes a second touch panel and the second touch panel includes a plurality of second electrodes. When the first touch device and the second touch device operate in the application mode, multiple transmission signals with a frequency are output through the second electrodes in a transmission area of the second touch panel, and an absolute movement trajectory or an absolute rotation angle of the second touch device is obtained through the first touch device; and An application is executed by the first touch device based on the absolute movement trajectory or the absolute rotation angle.
18. The transmission method according to claim 17, characterized in that, Also includes: The first processor in the first touch device controls the first electrodes in the first touch device to operate as receiving electrodes.
19. The transmission method according to claim 18, characterized in that, Also includes: The second processor in the second touch device controls the second electrodes in the second touch device to operate as transmission electrodes.