WO2019105187A1

WO2019105187A1 - Touch sensing signal processing method, system and device, and electronic device

Info

Publication number: WO2019105187A1
Application number: PCT/CN2018/114056
Authority: WO
Inventors: 贺欣
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2017-11-29
Filing date: 2018-11-06
Publication date: 2019-06-06
Also published as: CN107861657A; CN107861657B

Abstract

A touch sensing signal processing method, system and device, and an electronic device. The method is applicable to an operating system and comprises: receiving a touch sensing signal generated by a touch sensor (121) of touch equipment (120) (S201); converting the touch sensing signal into a touch signal, wherein the touch signal at least comprises a touch position signal (S202); and encoding the touch signal according to a data encoding specification supported by an input subsystem (143), and transmitting the encoded touch signal to the input subsystem (S203). According to the described method, the operating system converts the touch sensing signal generated by the touch sensor (121) into the touch signal, encodes the touch signal and transmits the touch signal to the subsystem (143), so that the touch equipment (120) does not need to convert the signal, which may reduce the performance requirements for a control chip of the touch equipment, and thus reduce the cost and size of the touch equipment (120).

Description

Method, system, device and electronic device for processing touch signal

Technical field

The present invention relates to the field of touch technologies, and in particular, to a method, system, device, and electronic device for processing a tactile signal.

Background technique

Many electronic devices are equipped with various touch devices, such as capacitive, resistive, electromagnetic or infrared touch devices. When the user touches the touch screen corresponding to the touch device, the touch sensor of the touch device can collect the touch signal, wherein When the type of the touch device is different, the touch signal may be different. For example, when the touch device is electromagnetic, the collected touch signal includes the amount of change of the magnetic flux and the frequency of the received electromagnetic signal. When the touch device is capacitive, the collected device is collected. The tactile signal includes a change in capacitance.

For the touch signal obtained by the touch sensor, the control chip of the touch device can convert the touch signal into a touch signal, and encode the touch signal according to the data encoding specification supported by the operating system, and then transmit to the operating system of the electronic device, and the touch response is performed by the operating system. .

With the improvement of touch precision, the amount of signals that the control chip needs to process is getting larger and larger, and the requirements for its signal processing capability are getting higher and higher. In order to improve the signal processing capability of the control chip, the touch device needs to adopt a high-performance chip. The high cost and high volume of the high-performance chip will increase the cost and volume of the touch device.

Summary of the invention

In view of this, the present invention provides a method, system, device, and electronic device for processing a tactile signal to solve the problem that the high-performance chip causes an increase in cost and an increase in volume of the touch device.

According to a first aspect of the present invention, a processing system for a haptic signal is provided, comprising: a touch device including a touch sensor, the host device having an operating system mounted thereon, and the operating system including signal processing Code, virtual touch device and input subsystem;

The touch sensor generates a haptic signal, and the touch device transmits the haptic signal to the operating system;

The signal processing code converts a touch signal received by the operating system into a touch signal, and transmits the touch signal to the virtual touch device, wherein the touch signal includes at least a touch position signal;

The virtual touch device encodes the touch signal according to a data encoding specification supported by the input subsystem, and sends the encoded touch signal to the input subsystem;

The input subsystem generates a corresponding touch event in response to the encoded touch signal.

In one embodiment, the data encoding specification is a standard data encoding specification or a predefined data encoding specification.

In one embodiment, the touch sensor comprises one or more of the following:

Infrared touch frame, electromagnetic board, capacitive touch pad, resistive touch pad, pressure sensor.

In one embodiment, when the touch sensor is an electromagnetic plate, the tactile signal includes a magnetic flux change amount and a frequency of the received electromagnetic signal, and the touch signal includes a touch position signal corresponding to the magnetic flux change amount. a pressure sensitive signal corresponding to the frequency.

In one embodiment, the touch device transmits the tactile signal to the operating system via any of the following interfaces:

USB-bulk interface, USB-hid interface, RS232 interface.

In one embodiment, if the touch signal includes position coordinates of more than six pixel points, the virtual touch device performs block coding on the touch signal according to the data encoding specification, and generates one data per coded group of touch signals. A packet, which contains a position coordinate of up to six pixels in a packet.

According to a second aspect of the present invention, a method for processing a haptic signal is provided for use in an operating system, including the steps of:

Receiving a tactile signal generated by a touch sensor of the touch device;

Converting the haptic signal into a touch signal, wherein the touch signal includes at least a touch position signal;

The touch signal is encoded and transmitted to the input subsystem in accordance with a data encoding specification supported by the input subsystem.

In one embodiment, the encoding of the touch signal according to a data encoding specification supported by the input subsystem includes:

If the touch signal includes position coordinates of more than six pixel points, the touch signal is group coded according to the data encoding specification, and one data packet is generated for each group of touch signals, and one set of touch signals includes at most six The position coordinates of the pixel.

According to a third aspect of the present invention, a device for processing a haptic signal, which is applied to an operating system, includes:

a signal receiving module, configured to receive a tactile signal generated by a touch sensor of the touch device;

a signal conversion module, configured to convert the touch signal into a touch signal, wherein the touch signal includes at least a touch position signal;

a signal encoding module, configured to encode the touch signal according to a data encoding specification supported by the input subsystem;

a signal transmission module for transmitting the encoded to the input subsystem.

According to a fourth aspect of the present invention, an electronic device is provided, which is equipped with a touch device, a processor, and a memory for storing the processor-executable instructions; the touch device includes a touch sensor; The processor is coupled to the memory for reading program instructions stored by the memory and, in response, performing operations in the method as described above.

In one embodiment, the electronic device comprises a smart tablet.

In one embodiment, the smart tablet includes an electronic whiteboard.

According to a fifth aspect of the invention, there is provided one or more machine-readable storage medium having stored thereon instructions that, when executed by one or more processors, cause the terminal device to perform operations in the method as described above.

After the touch sensor generates a tactile signal, the touch sensor directly transmits the tactile signal to the operating system, and the operating system converts the tactile signal into a touch signal and transmits the code to the input subsystem. Therefore, the touch device does not need to perform the conversion process of the touch signal to the touch signal, the performance requirement of the control chip can be reduced, and the low performance chip is used as the control chip in the touch device, thereby reducing the cost and volume of the touch device.

DRAWINGS

1 is a block diagram of a processing system for a haptic signal according to an exemplary embodiment of the present invention;

2 is a flow chart showing a method of processing a haptic signal according to an exemplary embodiment of the present invention;

3 is a block diagram of a processing device for a haptic signal according to an exemplary embodiment of the present invention;

FIG. 4 is a hardware structural diagram of an electronic device according to an exemplary embodiment of the present invention.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

The terminology used in the present invention is for the purpose of describing particular embodiments, and is not intended to limit the invention. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information without departing from the scope of the invention. Similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "responding to certainty."

Please refer to FIG. 1 . FIG. 1 is a block diagram of a processing system 100 for a haptic signal according to an exemplary embodiment of the present invention. The processing system 100 may include a touch device 120 and a host device 140. The touch device 120 may include a touch sensor 121. An operating system (not shown in FIG. 1) is mounted on the host device 140, and the operating system may include a signal processing code 141, a virtual touch device 142, and an input subsystem 143.

The host device 140 may be referred to as a part of the device for implementing a touch response in the host or the host of the electronic device. The touch device 120 may be referred to as a touch input device other than the electronic device, or may be installed on various electronic devices. Touch input device, where the electronic device can be a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, a smart writing device, an email device, a game console, a tablet A combination of computers, wearables, smart locomotives, driverless cars, smart refrigerators, other smart home devices, or any of these devices. The smart writing device can be an electronic whiteboard, an electronic blackboard, or the like.

The corresponding touch screen type of the touch device 120 may be electromagnetic, infrared, capacitive, resistive, or pressure sensitive. For example, the touch screen type of the smart phone is capacitive or resistive, and the touch screen type of the smart writing board is The electromagnetic touch type of the infrared display is infrared.

When the touch screens of the touch device 120 are different in type, the types of the touch sensors 121 are different, the touch signals collected by the touch devices are different, and the touch signals obtained by the conversion are not completely the same. Several touch sensors 121 are listed below for different types of touch screens:

Type 1: The touch screen is an infrared touch screen, and the touch sensor 121 is an infrared touch frame. The touch signal collected may include a signal indicating that the infrared light is blocked, and the converted touch signal may include a position touch signal, and the touch signal may include a touch position. X coordinate and Y coordinate.

Type 2: The touch screen is an electromagnetic touch screen, and the touch sensor 121 is an electromagnetic board. The touch signal collected by the touch sensor may include a change amount of the magnetic flux and a frequency of the received electromagnetic signal, and the converted touch signal may include corresponding to the flux change amount. The touch position signal, the pressure sensitive signal corresponding to the frequency, the touch position signal may include an X coordinate and a Y coordinate of the touch position. The pressure sensitive signal can include a pressure value.

Type 3: The touch screen is a capacitive touch screen, and the touch sensor 121 is a capacitive touch panel. The collected touch signal may include current flowing through each electrode of the touch screen, and the converted touch signal may include a position touch signal, and the touch signal at the position may be Includes the X and Y coordinates of the touch location.

Type 4: The touch screen is a resistive touch screen, and the touch sensor 121 is a resistive touch panel. The touch signal collected may include a voltage at a touch position, and the converted touch signal may include a position touch signal, where the touch signal may include a touch position. X coordinate and Y coordinate.

Type 5: The touch screen is a pressure sensitive touch screen, and the touch sensor 121 is a pressure sensor, and the collected touch signal may include a pressure signal, and the converted touch signal may include a position touch signal, and the touch position signal may include an X coordinate of the touch position and Y coordinate.

In other examples, the touch screen of the touch device 120 may include at least two types of touch screens: an electromagnetic touch screen, an infrared touch screen, a capacitive touch screen, a resistive touch screen, and a pressure sensitive touch screen. Accordingly, the touch sensor 121 may include an infrared touch frame. At least two of an electromagnetic board, a capacitive touch panel, a resistive touch panel, and a pressure sensor. Alternatively, the touch device 120 may be other types of touch screens, which are not limited in this embodiment of the present specification.

After the touch sensor 121 collects the tactile signal, when the touch device 120 transmits the tactile signal to the operating system, if the touch sensor is a device that has both the control function and the acquisition function, such as a touch sensor chip, the touch sensor 121 can directly pass through the predetermined interface. The haptic signal is transmitted to an operating system. The predetermined interface mentioned here may be a USB-bulk interface, an RS232 interface or a USB-hid interface (hid is an abbreviation of Human Interface Devices, ie, a human interface device), and the USB-hid interface may be a universal USB-hid interface. In addition, the predetermined interface may also be a signal transmission interface customized by the designer of the solution of the present invention or other equipment manufacturer.

In other examples, the touch device 120 may further include a touch processing device (not shown in FIG. 1 ). When the touch device 120 transmits a tactile signal to the operating system, if the touch sensor 121 does not have a control function, the touch processing device may be used by the touch processing device. The touch sensor 121 reads the touch signal, and then the touch processing device transmits the touch signal to the transmission operating system through the predetermined interface. The touch processing device mentioned herein may be a main control chip (also referred to as a main processing chip or a central processing unit) of the touch device 120, or may be another processing chip, and the processing chip may be installed in the touch device 120. It can also be disposed outside the touch device 120.

For the signal processing code 141, when the touch signal is converted into a touch signal, corresponding to different types of touch screens, the conversion mode can be adopted according to the working principle of each type of touch screen. For example, the haptic signal is a current generated by the capacitive touch screen flowing through each electrode of the touch screen, and the X coordinate and the Y coordinate of the touch point position can be determined according to the ratio of the currents of the respective levels.

The signal processing code 141 is a module in a logical sense, and may be through a central processing unit (also referred to as a main control chip or a main processing chip) of the host device 140 or a processing chip other than the central processing unit. Corresponding computer program instructions in a readable medium such as a volatile memory are read into memory for operation. The central processing unit of the host device 140 or other processing chip other than the central processing unit can read the program instructions stored in its memory and, in response, convert the tactile signals into touch signals.

For the virtual touch device 142, which is a virtual device that is simulated by software and has a function of the touch device 120 and runs in the operating system, after starting the operation, the data of the signal transmitted to the input subsystem 143 can be reserved to the input subsystem 143. The coding specification, that is, the data coding specification supported by the input subsystem 143. In actual applications, the virtual touch device 140 is different when the types of the touch devices 120 are different. For example, the touch device 120 is an infrared touch frame device, and the virtual touch device 140 is a virtual touch frame device.

In some examples, the data encoding specification supported by the input subsystem 143 may be an effective touch data protocol extracted from the USB multi-touch hid protocol corresponding to the USB-hid interface. The emphasis here on "extraction" means that the standard USB multi-touch hid protocol will add some headers, messages, etc. required by the USB transmission protocol to the effective touch data protocol for transmission by the USB protocol, and these data inputs are added. Not required in the system. In addition, the data encoding specification supported by the input subsystem 143 may also be a predetermined data encoding specification according to the application requirements of the touch device 120 by the designer of the solution, and the embodiment of the present specification is not limited herein.

The input subsystem (input_device) 143 may be composed of a device driver layer, an input core layer, and an event processing layer. The device driver layer may convert the underlying hardware input into a unified event form, report to the input core layer, and input the core layer. The device registration and operation interface input for the hardware driver layer is notified, and the event processing layer is notified to process the event.

In some scenarios, the processing system 100 can be applied to an electronic device. The touch device 120 can also include a touch screen. The touch sensor 121 can be mounted on the touch screen or can be independent of the touch screen. The processing system 100 can also include an interface (the predetermined interface described above) disposed between the touch device 120 and the operating system. When the user touches the touch screen through a finger or a stylus, the touch sensor 121 may generate a haptic signal, and the touch device 120 transmits the haptic signal to the operating system, and the signal processing code 141 in the operating system may convert the received haptic signal into a touch signal. And transmitting the touch signal to the virtual touch device 142, and then the virtual touch device 142 encodes the touch signal according to the data encoding specification supported by the input subsystem 143, and sends the encoded touch signal to the input subsystem 143. A corresponding touch event is generated by the input subsystem 143 in response to the encoded touch signal.

When the touch device 120 sends the touch signal to the operating system, the touch signal may be transmitted through the predetermined interface according to different requirements. For example, when the communication speed is high, the touch signal may be transmitted through the USB-bulk interface. If the communication speed is required and the stability of communication is required, the tactile signal can be transmitted through the USB-hid interface; if the communication process is required to be streamlined, the tactile signal can be transmitted through the RS232 interface, and the tactile signal can be transmitted through the corresponding interface. It is converted to a protocol supported by the corresponding interface and then transmitted through the corresponding interface. In other examples, when there are other requirements, other types of interfaces may be used to transmit the haptic signals, which are not limited in this embodiment of the present specification.

After the signal processing code 141 converts the haptic signal into a touch signal and transmits it to the virtual touch device 142, the data encoding specification employed by the virtual touch device 142 to encode the touch signal may be related to the type of the touch screen of the touch device 120.

For example, when the touch device 120 is an electromagnetic touch device, the data encoding specification may be a USB protocol supporting a single electromagnetic pen input, encoding the touch signal as a touch signal triggered by a single electromagnetic pen, and then mapping the encoded touch signal. Go to the body of the USB protocol.

In practical applications, the touch signal can be mapped into the body of the USB protocol in the format in Table 1 below (corresponding to the descriptor of the hid pen):

Table 1:

For another example, when the touch device 120 is a capacitive touch device, the data encoding specification used may be a multi-touch protocol. When encoding, the touch signal is encoded into data satisfying the format specified by the multi-touch protocol, and then encoded. The touch signal is packed into the package of the same data packet.

In practical applications, the touch signal can be mapped into the body of the multi-touch protocol according to the format in Table 2 below (corresponding to the hid multi-touch descriptor):

Table 2:

As shown in Table 2, the data of the first touch point includes status, ID, X, Y, Pressure information, corresponding byte numbers 1 to 8; data of the second point touch point, including status, ID, X, Y, Pressure information, corresponding byte number 9 to 16; byte number 17 indicates that there are several touch points (several pens) in the current data packet.

In some examples, the touch screen corresponding to the touch device 120 has a resolution of 32767*32767, the coordinate origin is the upper left corner of the touch screen, and the touch signal may include data of more touch points, such as position coordinates including more than six pixel points. In this case, the virtual touch device 142 can perform block coding on the touch signal according to the data coding specification, and generate one data packet per coded touch signal, and a data packet includes position coordinates of up to six pixel points.

In practical applications, packet coding is performed. For each group of codes, the touch signals can be mapped into the body of a data packet according to the format in Table 3 below:

table 3:

Each data packet contains up to 6 touch points of data, and each data packet is sent separately. The first data packet sent may include the number of valid touch points triggered this time, and other data packets are sent 0x00 at the corresponding position, and the input subsystem 143 may Different touch points are distinguished by touching the ID of the point.

After inputting the encoded touch signal received by the subsystem 143, the touch signal can be parsed by using a corresponding protocol, the touch signal is parsed, and then converted into a corresponding touch event.

The touch signal processing process applied to the operating system is described below with reference to the accompanying drawings:

Referring to FIG. 2, FIG. 2 is a flowchart of a method for processing a haptic signal according to an exemplary embodiment of the present invention. The embodiment is applied to an operating system, and may include the following steps S201-S203:

Step S201: Receive a tactile signal generated by a touch sensor of the touch device.

Step S202: Convert the touch signal into a touch signal, wherein the touch signal includes at least a touch position signal.

Step S203: Encode the touch signal according to a data encoding specification supported by the input subsystem, and transmit the encoded to the input subsystem.

The technical features of the embodiment are corresponding to the technical features of the embodiment corresponding to FIG. 1, and details are not described herein again.

The embodiment of the present invention can be applied to the operating system shown in FIG. 1 , and the operating system can be an operating system of various electronic devices with a touch screen, such as a display, a learning machine, a smart tablet, and the like, and a smart tablet such as an electronic blackboard or an electronic tablet. Whiteboard, etc. These electronic devices are installed with various applications required by users, such as text editing applications, image editing applications, social applications, e-commerce applications, search applications, browser applications, and the like. Etc., a text editing application such as an application of a whiteboard application, the input subsystem of the operating system generates a corresponding touch event according to the received touch signal, and can upload it to the corresponding application to assist the application in responding to the event.

For example, when the application is an application of the whiteboard application, the trigger event corresponding to the touch signal triggered by the electromagnetic pen is an event of adding written content, and the operating system can assist the application to control the writing content triggered by the electromagnetic pen.

Referring to FIG. 3, FIG. 3 is a block diagram of a processing device for a haptic signal according to an exemplary embodiment of the present invention. The device may be applied to an operating system, including: a signal receiving module 310, a signal converting module 320, a signal encoding module 330, and a signal. Transmission module 340.

The signal receiving module 310 is configured to receive a tactile signal generated by a touch sensor of the touch device.

The signal conversion module 320 is configured to convert the touch signal into a touch signal, wherein the touch signal includes at least a touch position signal.

The signal encoding module 330 is configured to encode the touch signal according to a data encoding specification supported by the input subsystem.

The signal transmission module 340 is configured to transmit the encoded to the input subsystem.

In some examples, the data encoding specification is a standard data encoding specification or a predefined data encoding specification.

In some examples, the touch sensor includes one or more of the following:

Infrared touch frame, electromagnetic board, capacitive touch panel, resistive touch panel, pressure sensor

In some examples, when the touch sensor is an electromagnetic plate, the touch signal includes a magnetic flux change amount and a frequency of the received electromagnetic signal, and the touch signal includes a touch position signal corresponding to the magnetic flux change amount, and The pressure sensitive signal corresponding to the frequency.

In some examples, the touch device transmits the tactile signal to the operating system via any of the following interfaces:

USB-bulk interface, USB-hid interface, RS232 interface.

In some examples, if the touch signal includes position coordinates of more than six pixel points, the signal encoding module 330 is further configured to perform block coding on the touch signal according to the data encoding specification, and generate one data per coded touch signal. A packet, which contains a position coordinate of up to six pixels in a packet.

The implementation process of the functions and functions of each unit (or module) in the above device is specifically described in the implementation process of the corresponding steps in the foregoing method, and details are not described herein again.

For the device embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment. The device embodiments described above are merely illustrative, wherein the units or modules described as separate components may or may not be physically separate, and the components displayed as units or modules may or may not be physical units. Or modules, which can be located in one place, or distributed to multiple network units or modules. Some or all of the modules may be selected according to actual needs to achieve the objectives of the present invention. Those of ordinary skill in the art can understand and implement without any creative effort.

Embodiments of the processing device for the tactile signal of the present invention can be applied to an electronic device. This can be implemented by a computer chip or an entity, or by a product having a certain function. In a typical implementation, the specific form of the electronic device may be a personal computer with a electromagnetic screen, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, a smart writing device, Email transceivers, game consoles, tablets, wearables, Internet TVs, smart locomotives, driverless cars, smart refrigerators, other smart home devices, or a combination of any of these devices. The smart writing device can be an electronic whiteboard, an electronic blackboard, or the like.

The device embodiment may be implemented by software, or may be implemented by hardware or a combination of hardware and software. Taking the software implementation as an example, as a logical device, a processor of the electronic device in which it is located reads a corresponding computer program instruction in a readable medium such as a non-volatile memory into a memory. From a hardware level, as shown in FIG. 4, a hardware structure diagram of an electronic device in which the processing device for the tactile signal of the present invention is located, except for the processor, the memory, the network interface, and the nonvolatile memory shown in FIG. In addition, the electronic device in which the device is located in the embodiment may be equipped with a touch device according to the actual function of the electronic device. The touch device may be installed on the electronic device or may be independent of the electronic device. The touch device may include The touch sensor, such as an electromagnetic touch screen, the electromagnetic touch screen includes an electromagnetic sensor, and may also include other hardware, which will not be described again. The memory of the electronic device may store program instructions executable by the processor; the processor may couple the memory for reading the program instructions stored by the memory, and in response, perform the operation of: receiving a tactile signal generated by the touch sensor; Converting the haptic signal into a touch signal, wherein the touch signal includes at least a touch position signal; encoding the touch signal according to a data encoding specification supported by the input subsystem, and transmitting the encoded to the input Subsystem.

In some examples, if the touch signal includes position coordinates of more than six pixel points, the processor is configured to perform the following operations:

The device performs block coding on the touch signal according to the data coding specification, and generates one data packet per coded touch signal, and a data packet contains position coordinates of up to six pixel points.

In other examples, the electronic device includes a smart tablet.

In other examples, the smart tablet includes an electronic whiteboard.

In other embodiments, the operations performed by the processor may be referred to the related description in the foregoing method embodiments, and details are not described herein.

In addition, an embodiment of the present invention further provides a machine readable storage medium (memory of an electronic device), wherein the readable storage medium stores program instructions, where the program instructions include steps of a processing method of the touch signal described above. Corresponding instructions. When executed by one or more processors, the terminal device is caused to perform the processing method of the above-described tactile signals.

Embodiments of the invention may take the form of a computer program product embodied on one or more readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which program code is embodied. Computer-readable readable storage media include both permanent and non-persistent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be computer readable instructions, data structures, modules of programs, or other data. Examples of machine readable storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only Memory (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage A magnetic tape cartridge, magnetic tape storage or other magnetic storage device or any other non-transporting medium that can be used to store information that can be accessed by a computing device.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are made within the spirit and principles of the present invention, should be included in the present invention. Within the scope of protection.

Claims

A haptic signal processing system, comprising: a touch device and a host device, the touch device includes a touch sensor, the host device is equipped with an operating system, and the operating system includes a signal processing code, a virtual touch device, and Input subsystem

The touch sensor generates a haptic signal, and the touch device transmits the haptic signal to the operating system;

The signal processing code converts a touch signal received by the operating system into a touch signal, and transmits the touch signal to the virtual touch device, wherein the touch signal includes at least a touch position signal;

The virtual touch device encodes the touch signal according to a data encoding specification supported by the input subsystem, and sends the encoded touch signal to the input subsystem;

The input subsystem generates a corresponding touch event in response to the encoded touch signal.
The system of claim 1 wherein said data encoding specification is a standard data encoding specification or a predefined data encoding specification.
The system of claim 1 wherein said touch sensor comprises one or more of the following:

Infrared touch frame, electromagnetic board, capacitive touch pad, resistive touch pad, pressure sensor.
The system according to claim 3, wherein when the touch sensor is an electromagnetic plate, the tactile signal includes a magnetic flux change amount and a frequency of the received electromagnetic signal, and the touch signal includes the magnetic flux A touch position signal corresponding to the amount of change, and a pressure sensitive signal corresponding to the frequency.
The system of claim 1 wherein said touch device transmits said tactile signal to said operating system via any of the following interfaces:

USB-bulk interface, USB-hid interface, RS232 interface.
The system according to any one of claims 1 to 5, wherein if the touch signal includes position coordinates of six or more pixel points, the virtual touch device pairs the touch signal according to the data encoding specification Performing block coding, generating one data packet per coded touch signal, and a data packet containing position coordinates of up to six pixel points.
A method for processing a tactile signal, which is characterized by being applied to an operating system, comprising the steps of:

Receiving a tactile signal generated by a touch sensor of the touch device;

Converting the haptic signal into a touch signal, wherein the touch signal includes at least a touch position signal;

The touch signal is encoded and transmitted to the input subsystem in accordance with a data encoding specification supported by the input subsystem.
The method of claim 7, wherein the encoding the touch signal according to a data encoding specification supported by the input subsystem comprises:

If the touch signal includes position coordinates of more than six pixel points, the touch signal is group coded according to the data encoding specification, and one data packet is generated for each group of touch signals, and one set of touch signals includes at most six The position coordinates of the pixel.
A processing device for a tactile signal, which is characterized by being applied to an operating system, comprising:

a signal receiving module, configured to receive a tactile signal generated by a touch sensor of the touch device;

a signal conversion module, configured to convert the touch signal into a touch signal, wherein the touch signal includes at least a touch position signal;

a signal encoding module, configured to encode the touch signal according to a data encoding specification supported by the input subsystem;

a signal transmission module for transmitting the encoded to the input subsystem.
An electronic device, characterized in that the electronic device is equipped with a touch device, a processor, and a memory for storing the processor-executable instructions; the touch device includes a touch sensor; wherein the processor is coupled to The memory is configured to read program instructions stored by the memory and, in response, perform operations in the method of claim 7 or 8.
The device of claim 10 wherein said electronic device comprises a smart tablet.
The device according to claim 11, wherein said smart tablet comprises an electronic whiteboard.
One or more machine-readable storage mediums having stored thereon instructions that, when executed by one or more processors, cause the terminal device to perform operations in the method of claim 7 or 8.