CN113760107B - Touch pen, touch electronic device and touch system - Google Patents

Abstract

The invention provides a touch pen, a touch electronic device and a touch system. The touch electronic device includes a touch panel and a tactile actuator device, and the tactile actuator device is connected to the touch panel. The stylus includes a pressure sensor and a pen tip. The touch electronic device encodes the vibration signal according to the transmitted information, determines the vibration force of the vibration signal relative to at least one synchronized time point, and controls the haptic actuator device to drive the touch panel to generate the vibration signal. The tip of the stylus receives the vibration signal, and the pressure sensor senses the vibration force of the vibration signal. The stylus decodes the vibration force and the synchronization time point corresponding to the vibration force to obtain the transmission information, and the stylus performs a function based on the transmission information.

Description

Styluses, touch electronic devices and touch systems

Technical field

The present invention relates to an electronic device, and in particular, to a stylus, a touch electronic device and a touch system.

Background technique

With the development of the mobile electronic device industry, in order to achieve more convenience, lighter size, and more intuitive operation, using touch devices as input and output interfaces has become the mainstream in the design of electronic devices. Such electronic devices with touch devices include mobile phones, tablet computers, electronic drawing tablets, and notebook computers. Generally speaking, fingers and stylus are the input tools most commonly used by users for touch operations. Since stylus pens can produce finer and more accurate strokes, more and more users have begun to use stylus pens to replace handwriting input functions in recent years.

In recent years, with the advancement of technology and market demand, the application of active stylus pens has become more and more common. The tip of the active stylus can emit electrical signals, and the touch sensing electrodes of the touch panel receive the electrical signals to achieve the purpose of detecting the touch position and communicating. It can be seen from this that the active stylus and the touch panel need to use a specific communication protocol so that the electrical signals emitted by the active stylus can be received and recognized, thereby communicating and realizing the touch input function. However, commercially available electronic devices may support different stylus communication protocols. If the communication protocol supported by the active stylus is inconsistent with the communication protocol supported by the electronic device, the user will not be able to use the stylus to perform input actions normally. Currently, although there are active stylus pens on the market that support multiple communication protocols, users need to manually press the buttons to try to switch, which brings inconvenience to use.

Contents of the invention

In view of this, the present invention proposes a stylus, a touch electronic device and a touch system, which drive the touch panel through a tactile actuator to provide a vibration signal with transmission information, so that the stylus can operate according to the vibration signal. The decoding result obtains the transmission information from the touch electronic device.

An embodiment of the present invention provides a touch pen, which includes a pen tip, a pressure sensor, and a controller. The pen tip is used to receive a vibration signal, and the pressure sensor is connected to the pen tip. The pressure sensor senses the vibration force of the above vibration signal. The controller is coupled to the pressure sensor, decodes the vibration force and the synchronization time point corresponding to the vibration force to obtain transmission information, and performs a function based on the transmission information. The pressure value sensed by the pressure sensor is directly related to the vibration force of the vibration signal.

An embodiment of the present invention provides a touch electronic device, which includes a touch panel, a tactile actuator, a storage device, and a processor. A tactile actuator is connected to the touch panel. The processor is coupled to the touch panel, the tactile actuator device, and the storage device. The processor encodes a vibration signal according to the transmission information, determines the vibration strength of the vibration signal relative to at least one synchronization time point according to the transmission information, and controls the tactile actuator to drive the touch panel to generate a vibration signal, causing a stylus to receive the vibration signal And get the transmission information.

An embodiment of the present invention provides a touch system, which includes a touch electronic device and a stylus. The touch electronic device includes a touch panel and a tactile actuator device, and the tactile actuator device is connected to the touch panel. The stylus includes a pressure sensor and a pen tip, and the pressure sensor is connected to the pen tip. The touch electronic device encodes the vibration signal according to the transmitted information, and controls the haptic actuator device to drive the touch panel to generate the vibration signal. The tip of the stylus receives the vibration signal, and the pressure sensor senses the vibration force of the vibration signal. The stylus decodes the vibration force of the vibration signal to obtain the transmission information, and the stylus performs a function based on the transmission information.

Based on the above, in embodiments of the present invention, the tactile actuator drives the touch panel to provide a vibration signal carrying transmission information, and the stylus can sense the vibration force by sensing the pressure exerted by the vibration signal on the pen tip. The stylus can obtain transmission information from the touch electronic device based on the sensing pressure corresponding to the vibration force, and perform subsequent functions based on the transmission information. In this way, the active stylus and the touch electronic device have a two-way communication function.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, specific implementation modes are given below and described in detail with reference to the accompanying drawings.

Description of the drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

Figure 1 is a schematic diagram of a touch system according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a stylus sensing vibration signals according to an embodiment of the present invention;

Figure 3 is an operation schematic diagram of a touch system according to an embodiment of the present invention;

Figure 4 is a schematic diagram of decoding vibration signals according to an embodiment of the present invention;

Figure 5 is a flow chart of a pairing communication protocol using vibration signals according to an embodiment of the present invention. .

Explanation of reference numbers

10:Touch system;

110: Touch electronic device;

111:Touch panel;

112: Tactile actuation device;

113: storage device;

114: Processor;

120: stylus;

121: pen tip;

122: Pressure sensor;

123:Controller;

124: Signal transmitter;

125: storage device;

C1: Touch controller;

C2: Actuation controller;

112_1: Tactile actuator;

E1: electrical signal;

V0, V1, 31: vibration signal;

32: Pressure sensing results;

P1: time synchronization period;

P2: Information transmission period;

T1: Default duration;

S501～S510: steps.

Detailed ways

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same element numbers are used in the drawings and description to refer to the same or similar parts.

FIG. 1 is a schematic diagram of a touch system according to an embodiment of the present invention. Referring to FIG. 1 , the touch system 10 includes a stylus 120 and a touch electronic device 110 . The touch electronic device 110 is, for example, a mobile phone, a smart phone, a tablet computer, an electronic drawing tablet, an e-book, a game console, or other electronic device with a touch input function, and the present invention is not limited thereto. The user can use the stylus 120 to perform touch input operations on the touch electronic device 110 .

In one embodiment, the touch electronic device 110 includes a touch panel 111, a tactile actuator 112, a storage device 113, and a processor 114.

The touch panel 111 has a plurality of touch sensing electrodes arranged in an array, and may be a capacitive touch panel. The touch panel 111 can detect touch events applied on the top of the touch panel 111 through these touch sensing electrodes. In addition, the touch sensing electrodes of the touch panel 111 can receive the electrical signal E1 from the stylus 120 through electrostatic induction or electromagnetic induction. In one embodiment, the touch panel 111 can be integrated with a display to form a touch screen. Alternatively, in an embodiment, the touch panel 111 may be a touch tablet. For example, the user can touch the touch panel 111 of the touch electronic device 110 with the stylus 120 and slide the stylus 120 on the touch panel 111 to perform writing or drawing actions in conjunction with the application software.

Tactile actuator 112 is connected to touch panel 111 . Tactile actuation device 112 is equipped with one or more tactile actuators. In one embodiment, the vibration characteristics generated by the haptic actuator have editable characteristics. Tactile actuators are, for example, PowerHap piezoelectric actuators, electroactive polymer (EAP) actuators, magnetostrictive (magnetostrictive) actuators, voice coil motor actuators, linear resonance actuators ( Linear-Resonance Actuator (LRA), electromagnetic actuator or other tactile actuator, the present invention is not limited to this. In one embodiment, the tactile actuator 112 is used to generate vibration and drive the touch panel 111 to output the vibration signal V1 by directly or indirectly contacting the touch panel 111 .

The storage device 113 is used to store data and program codes (such as operating systems, applications, drivers) for access by the processor 114. It can be, for example, any type of fixed or removable random access memory (random access memory). access memory (RAM), read-only memory (read-only memory, ROM), flash memory (flashmemory) or a combination thereof.

The processor 114 is coupled to the touch panel 111, the tactile actuator 112, and the storage device 113, such as a central processing unit (Central Processing Unit, CPU) or other programmable general-purpose or special-purpose microprocessor ( Microprocessor), Digital Signal Processor (DSP), programmable controller, Application Specific Integrated Circuits (ASIC), Programmable Logic Device (PLD) or other similar devices or a combination of these devices. The processor 114 can access and execute the program codes and software components recorded in the storage device 113 to implement the method of communicating with the stylus 120 through vibration signals in the embodiment of the present invention.

On the other hand, in one embodiment, the stylus 120 is an active stylus and includes a pen tip 121, a pressure sensor 122, a controller 123, a signal transmitter 124, and a storage device 125.

The pen head 121 is made of conductive material, and the tip of the pen head 121 is used to apply a touch event to the touch panel 111 . In one embodiment, the pen tip 121 is used to transmit an electrical signal E1 to the touch panel 111 so that the touch sensing electrodes of the touch panel 111 can receive the electrical signal E1 to detect the touch position. The pen head 121 is used to communicate with the touch sensing electrodes of the touch panel 111 electromagnetically or electrostatically.

The pressure sensor 122 is connected to the pen tip 121 . Pressure sensor 122 is typically made of piezoelectric material. When the pen tip 121 of the stylus pen 120 contacts the touch panel 111, the pressure sensor 122 can sense the pressure of the pen tip 121 being pushed into the pen tube. In one embodiment, when the user holds the stylus pen 120 and places the pen tip 121 on the touch panel 111, the pressure sensor 122 can output a corresponding voltage signal to the control device in response to the pressure sensed by the pen tip 121. Device 123.

The signal transmitter 124 is connected to the pen tip 121 and used to generate an electrical signal E1 that is transmitted to the touch electronic device 110 . In one embodiment, the touch panel 111 can detect the touch position of the stylus pen 120 in response to the electrical signal E1 generated by the signal transmitter 124 . For example, based on the capacitive sensing results of the touch sensing electrodes arranged in the array, the touch panel 111 can detect the touch position of the stylus pen 120 in response to the electrical signal emitted by the pen head 121 . In addition, in one embodiment, the signal transmitter 124 can also transmit an electrical signal E1 carrying specific data or instructions to the touch electronic device 110 . It should be noted that the stylus pen 120 and the touch electronic device 110 need to use the same active pen communication protocol to communicate. The above-mentioned active pen communication protocol is, for example, Microsoft Pen Protocol (MPP), Wacom AES protocol or other active pen communication protocols in the market, and the present invention is not limited thereto.

The storage device 125 is used to store data, which can be, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory (flashmemory) or its combination.

The controller 123 is coupled to the pressure sensor 122, the signal transmitter 124, and the storage device 125 to control the overall operation of the stylus 120. The related functions of the controller 123 may be implemented in one or more controllers, microcontrollers, microprocessors, application-specific integrated circuits (ASICs), digital signal processors (DSPs) , various logic blocks, modules and circuits in Field Programmable Gate Array (FPGA) and/or other processing units.

However, in addition to the pen tip 121, the pressure sensor 122, the controller 123, the signal transmitter 124, and the controller 123, the stylus 120 may also include components not shown in FIG. 1, such as a signal receiver and a power circuit. , tilt angle sensor or other communication components, etc., the present invention is not limited to this.

In one embodiment, the stylus 120 can achieve a two-way communication function with the touch electronic device 110 by transmitting an electrical signal E1 and receiving a vibration signal V1. As mentioned above, the stylus 120 can emit the electrical signal E1 through the pen tip 121, so that the touch sensing electrodes of the touch panel 111 can receive the electrical signal E1. It is worth mentioning that the touch electronic device 110 can encode the vibration signal V1 according to the transmission information, determine the vibration force of the vibration signal V1 relative to at least one synchronization time point according to the transmission information, and control the tactile actuator 112 to drive the touch panel 111 A vibration signal V1 is generated. The tip 121 of the stylus pen 120 receives the vibration signal V1, and the pressure sensor 122 senses the vibration force of the vibration signal V1. The stylus 120 decodes the vibration force of the vibration signal V1 to obtain the transmission information, and the stylus 120 can perform a function based on the transmission information.

For example, FIG. 2 is a schematic diagram of a stylus sensing vibration signals according to an embodiment of the present invention. Referring to FIG. 2 , in one embodiment, the touch controller C1 is coupled between the processor 114 and the touch panel 111 . In one embodiment, the touch controller C1 may be a touch integrated circuit (IC) packaged into a chip. The touch controller C1 is used to control the overall operation of the touch panel 111 . In one embodiment, the touch controller C1 can report the touch information sensed by the touch panel 111 to the operating system or application software executed by the processor 114 . In one embodiment, the memory circuit in the touch controller C1 may record panel information of the touch panel 111 .

Additionally, the haptic actuator 112 may include a haptic actuator 112_1 and an actuation controller C2. The tactile actuator 112_1 connected to the touch panel 111 is controlled by a driving signal sent from the actuation controller C2, and the actuation controller C2 can output the driving signal in the form of a pulse width modulation (PWM) signal. The tactile actuator 112_1 can provide vibration according to the oscillation conditions required by the PWM signal. In other words, by controlling the voltage size and pulse width of the PWM signal, the vibration characteristics of the tactile actuator 112_1 can be controlled. The above-mentioned vibration characteristics may include vibration force (ie, vibration intensity) and vibration frequency.

As shown in FIG. 2 , when the processor 114 decides to provide transmission information to the stylus 120 , the processor 114 can determine the vibration force (ie, vibration intensity) and vibration frequency of the vibration signal V1 based on the transmission information. The transmitted information may be any instructions or data, and the present invention is not limited thereto. Different vibration strengths can correspond to different instructions, words, data or character symbols. In other words, the processor 114 can perform an encoding operation according to the transmission information according to a default encoding rule to determine the vibration force of the vibration signal V1. Then, the processor 114 can control the vibration of the tactile actuator 112 according to the vibration encoding result to drive the touch panel 111 to output the vibration signal V1.

Correspondingly, the pen tip 121 that contacts the touch panel 111 can receive the vibration signal V1 and transmit the vibration signal V1 to the pressure sensor 122 . The pressure sensor 122 can sense the vibration force of the vibration signal V1. In more detail, the pressure sensor 122 can sense the pressure value exerted by the vibration signal V1 on the pen head 121 . The pressure value sensed by the pressure sensor 122 is directly related to the vibration force of the vibration signal V1. In other words, the greater the vibration force of the vibration signal V1, the greater the pressure value sensed by the pressure sensor 122. The smaller the vibration force of the vibration signal V1 is, the smaller the pressure value sensed by the pressure sensor 122 is. Based on this, based on the pressure value reported by the pressure sensor 122, the controller 123 can know the vibration force of the vibration signal V1, and decode the corresponding transmission information according to the vibration force of the vibration signal V1 and the synchronization time point corresponding to the vibration force.

For example, FIG. 3 is an operation schematic diagram of a touch system according to an embodiment of the present invention. Please refer to FIG. 3 . Based on the foregoing description, the touch electronic device 110 can output the vibration signal 31 through the touch panel 111 . The vibration strength of the vibration signal 31 may change over time. In response to the pressure of the vibration signal 31 pushing the pen tip 121 toward the interior of the stylus 120 , the pressure sensor 122 can output a pressure sensing result 32 to the controller 123 according to a specific sensing sampling frequency. The above-mentioned specific sensing sampling frequency and the vibration frequency of the vibration signal 31 can be designed according to actual needs. It can be seen that the pressure sensing result 32 reflects the vibration force of the vibration signal 31 . Therefore, the controller 123 can decode the transmission information provided by the touch electronic device 110 based on the pressure sensing result 32 .

It should be noted that, in one embodiment, the touch controller C1 can provide panel information of the touch panel 111 (such as the communication protocol, specification data or hardware characteristics supported by the touch panel 111) to the processor 114. The processor 114 can encode the above panel information as transmission information to generate the vibration signal V1. In other words, the transmission information may include panel information of the touch panel 111 . Based on this, the stylus 120 can obtain the panel information of the touch panel 111 through the vibration signal V1 to facilitate other subsequent applications.

In one embodiment, the transmission information may include at least one of a protocol setting command and a frequency setting command. The processor 114 may generate at least one of a protocol setting command and a frequency setting command according to at least one of the communication protocol and the driving frequency of the touch panel 111 . Correspondingly, the functions performed by the stylus 120 in response to the transmitted information include switching at least one of the communication protocol and the operating frequency of the stylus.

In one embodiment, the transmission information may include a protocol setting command, and the functions performed by the stylus 120 based on the transmission information include switching the communication protocol of the stylus 120 . Correspondingly, the processor 114 generates a protocol setting command according to the communication protocol supported by the touch panel 111 . Specifically, the touch electronic device 110 can notify the stylus 120 of the specific communication protocol supported by the touch panel 111 through the vibration signal V1, so that the stylus 120 can switch the communication protocol according to the transmission information carried by the vibration signal V1.

In one embodiment, the transmission information may include a frequency setting command, and the function performed by the stylus 120 according to the transmission information includes adjusting the operating frequency of the stylus 120 . Correspondingly, the processor 114 generates a frequency setting command according to the driving frequency of the touch panel 111 . Specifically, the touch electronic device 110 can notify the stylus 120 of the current driving frequency (also known as the touch scanning frequency) of the touch panel 111 through the vibration signal V1, so that the stylus 120 can determine the current driving frequency of the touch panel 111 according to the vibration signal V1. The information is transmitted to adjust the working frequency of the stylus 120. When the driving frequency of the touch panel 111 matches the operating frequency of the stylus 120 (also known as the carrier frequency or transmission frequency), the touch panel 111 can effectively receive the electrical signal generated by the signal transmitter 124 . Therefore, when the touch panel 111 adjusts the driving frequency in response to the noise measurement, the stylus 120 can also be adjusted to operate at an appropriate operating frequency based on the transmission information.

However, in the embodiment of the present invention, the transmission information is not limited to the panel information provided by the touch controller C1. For example, in one embodiment, the transmission information may include stroke setting data, and the function performed according to the transmission information includes recording the stroke setting data to the storage device 125 of the stylus 120 . The stroke setting data may include color, stroke thickness, stroke category, etc. Specifically, the processor 114 responds to user operations (such as clicking a function key of a software program interface or pressing a physical key on the stylus 120) and generates stroke setting data according to the current setting state of the stylus 120. The processor 114 may transmit the current stroke setting data to the stylus 120 through the vibration signal V1 to store the user's preferred stroke setting in the storage device 125 of the stylus 120 . Based on this, the user can save the need to perform the stroke settings again every time he uses the stylus 120, so the user can personalize the settings for the stylus 120, and can also apply the same set of stroke settings to on another touch electronic device.

In one embodiment, the processor 114 can determine the vibration force of the vibration signal V1 relative to at least one synchronized time point based on the transmission information. Correspondingly, the controller 123 of the stylus 120 can decode and obtain the transmission information according to the vibration force of the vibration signal V1 and the synchronization time point corresponding to the vibration force. Specifically, after completing the time synchronization process, the touch electronic device 110 and the stylus 120 can perform encoding operations and decoding operations based on the synchronization time information and the corresponding vibration force. The above time synchronization process may include the touch electronic device 110 sending a beacon signal to the stylus 120, and the stylus 120 feeding back a synchronization confirmation signal to the touch electronic device 110.

In the time synchronization procedure, in response to the stylus 120 receiving the beacon signal sent by the touch electronic device 110, the controller 123 may use the signal transmitter 124 to send a synchronization confirmation signal. Correspondingly, the processor 114 of the touch electronic device 110 controls the touch panel 111 to send out a beacon signal, and receives a synchronization confirmation signal from the stylus 120 through the touch panel 111 . Then, the processor 114 can control the touch panel 111 to output the vibration signal V1 after receiving the synchronization confirmation signal, and the controller 123 decodes the vibration force of the vibration signal V1 to obtain the transmission information after sending the synchronization confirmation signal. Beacon signals can be implemented by radio frequency signals, electrical signals or vibration signals. It is worth mentioning that in one embodiment, the beacon signal includes another vibration signal corresponding to the default vibration intensity and maintained for a preset duration.

For example, FIG. 4 is a schematic diagram of decoding a vibration signal according to an embodiment of the present invention. It should be noted that, here, the transmission information is in ASCII format in hexadecimal format as an example, but the present invention is not limited thereto. It should be noted that the vibration force is divided into 16 force levels here, but the present invention is not limited thereto. The controller 123 can learn the force level of the vibration force according to the pressure sensing value reported by the pressure sensor 122 . Referring to FIG. 4 , when the touch electronic device 110 wants to transmit information to the stylus 120 through the vibration of the touch panel 111 , the touch electronic device 110 and the stylus 120 can run the time synchronization program during the time synchronization period P1 and The information transmission program is executed during the information transmission period P2.

During the time synchronization period P1, the touch electronic device 110 controls the tactile actuator 112 to drive the touch panel 111 to generate the vibration signal V0 as a beacon signal. The default vibration force of this vibration signal V0 is "level 16" and maintains a preset duration period T1 (approximately two synchronization time points). In response to the pressure sensor 122 of the stylus 120 sensing the vibration signal V0, the stylus 120 may determine that the beacon signal is received. However, the default vibration force and preset duration of the vibration signal as the beacon signal can be designed according to actual needs, and the present invention is not limited thereto. Then, the stylus 120 may transmit a synchronization confirmation signal to the touch electronic device 110 at synchronization time point 4 through the signal transmitter 122 .

Then, after the time synchronization period P1, during the information transmission period P2, the touch electronic device 110 controls the tactile actuator 112 to drive the touch panel 111 to generate the vibration signal V1 to transmit the transmission information. The first vibration force of this vibration signal V1 at the first synchronization time point 5 is "Level 2", and the second vibration force at the second synchronization time point 9 is "Level 11". Therefore, based on FIG. 4 , it can be seen that the stylus 120 can sense the first vibration force of the vibration signal based on the first synchronization time point 5 to obtain the hexadecimal value “01”, and sense the first vibration intensity based on the second synchronization time point 9 The hexadecimal value "4A" is obtained by reaching the second vibration force of the vibration signal. Thereby, the stylus 120 can perform a command search based on the hexadecimal values "01" and "4A" and decide to perform a specific function. For example, the stylus 110 can switch to a specific communication protocol or change the working frequency of the stylus. Table 1 is an example of an instruction lookup table, but is not intended to limit the present invention.

Table 1

instruction operate 01 Switch to the first communication protocol (such as MPP) 02 Switch to a second communication protocol (e.g. AES) 03 Switch to a third communication protocol (such as USI) 4A Frequency hopping to the first operating frequency A 4B Frequency hopping to the second operating frequency B 4C Frequency hopping to the third operating frequency C

Based on the example in Table 1, when the stylus 120 decodes the vibration signal V1 and obtains the hexadecimal values "01" and "4A", the stylus 120 will switch to the first communication protocol (such as MPP) and frequency hopping. To the first operating frequency A, active pen touch detection is performed according to the same communication protocol as the touch electronic device 110, and the noise of the touch panel 111 is avoided by operating at the first operating frequency A, thereby achieving good touch quality.

Figure 5 is a flow chart of a pairing communication protocol using vibration signals according to an embodiment of the present invention. Please refer to FIG. 5 . The method of this embodiment is applicable to the touch system 10 of FIG. 1 . The following describes the detailed steps of the stylus setting updating method of the present invention in conjunction with various components in the touch system 10 .

Referring to FIG. 5 , in step S501 , the touch controller of the touch electronic device 110 provides panel information to the processor 114 of the touch electronic device 110 . The panel information may include communication protocols and driving frequencies supported by the touch panel 111 . In step S502, the processor 114 of the touch electronic device 110 generates transmission information (ie, protocol setting command and frequency setting command) according to the panel information, thereby determining the vibration characteristics of the vibration signal according to the transmission information. In step S503, the tactile actuator 112 receives the vibration characteristics of the vibration signal from the processor 114.

In step S504, the tactile actuator 112 drives the touch panel 111 to output a vibration signal as a beacon signal. In step S505 , the stylus 120 responds to detecting the beacon signal through the pressure sensor 122 and transmits a synchronization confirmation signal through the pen tip 121 . In step S506, the touch sensing electrodes of the touch panel 111 receive the synchronization confirmation signal. In step S507, the tactile actuator 112 drives the touch panel 111 to output a vibration signal including transmission information (ie, protocol setting command and frequency setting command). In step S508 , the stylus 120 senses the vibration force of the vibration signal through the pressure sensor 122 . In step S509, the stylus 120 decodes the vibration force of the vibration signal to obtain the transmission information (ie, the protocol setting command and the frequency setting command). In step S510, the stylus 120 searches for instructions according to the transmission information, switches the communication protocol and adjusts the operating frequency.

To sum up, in the embodiment of the present invention, the haptic actuator drives the touch panel to output an edited vibration signal, and the pressure sensor of the stylus can sense the vibration force by sensing the pressure exerted by the vibration signal on the pen tip. . The stylus can obtain transmission information from the touch electronic device based on the sensing pressure corresponding to the vibration force. Thereby, the active stylus can transmit information to the stylus through the vibration of the touch panel. In addition, when the transmission information carried by the vibration signal includes panel information, the stylus can respond to receiving the vibration signal and automatically complete the pairing of the communication protocol and adjust the working frequency of the stylus, greatly improving convenience of use and improving touch quality. .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope.

Claims (8)

1. A touch pen, comprising: The pen tip receives vibration signals; A pressure sensor is connected to the pen tip and senses the vibration force of the vibration signal; and a controller coupled to the pressure sensor, wherein the stylus runs the time synchronization program during the time synchronization period and executes the time information transmission program during the information transmission period, The controller decodes the vibration force and the synchronization time point of the information transmission period corresponding to the vibration force to obtain the transmission information, and performs functions according to the transmission information, wherein the pressure sensed by the pressure sensor The value is directly related to the vibration force of the vibration signal, wherein the transmission information includes at least one of a protocol setting command and a frequency setting command, and the function includes switching at least one of the communication protocol and operating frequency of the stylus, wherein the stylus further includes a signal transmitter coupled to the controller, In response to receiving the beacon signal of the time synchronization period, the controller uses the signal transmitter to send a synchronization confirmation signal, and after sending the synchronization confirmation signal, decodes the vibration force of the vibration signal, The controller obtains the force level of the vibration force based on the pressure value reported by the pressure sensor, and obtains the value based on the force level of the vibration force and the corresponding synchronization time point, wherein the touch The pen performs the function based on the value. 2. The stylus of claim 1, wherein the beacon signal includes another vibration signal corresponding to a default vibration force and maintained for a preset duration. 3. The stylus of claim 1, further comprising a storage device, wherein the transmission information includes stroke setting data, and the function includes recording the stroke setting data to the storage device. 4. A touch electronic device, including: touch panel; A tactile actuator device connected to the touch panel; storage device; and a processor coupled to the touch panel, the tactile actuator device, and the storage device, wherein the touch electronic device runs a time synchronization program during the time synchronization period and executes an information transmission program during the information transmission period, Wherein, during the time synchronization period, the processor controls the touch panel to send out a beacon signal to receive a synchronization confirmation signal from the stylus through the touch panel, and the processor encodes a vibration according to the transmission information. signal, determine the vibration force of the vibration signal relative to at least one synchronization time point of the information transmission period based on the transmission information, and control the tactile actuator to drive the tactile actuator after receiving the synchronization confirmation signal. The control panel outputs the vibration signal, causing the stylus to obtain the transmission information by receiving the vibration signal, The stylus obtains the force level of the vibration force based on the pressure value reported by the pressure sensor, and obtains the value based on the force level of the vibration force and the corresponding synchronization time point, wherein the stylus pen obtains the force level according to the pressure value reported by the pressure sensor. The value performs a function, The transmission information includes at least one of a protocol setting command and a frequency setting command, and the function includes switching at least one of a communication protocol and an operating frequency of the stylus. 5. The touch electronic device of claim 4, wherein the beacon signal includes another vibration signal corresponding to a default vibration force and maintained for a preset duration. 6. The touch electronic device according to claim 4, wherein the processor generates the protocol setting command according to the communication protocol of the touch panel and generates the said protocol setting command according to the driving frequency of the touch panel. Frequency setting command. 7. The touch electronic device according to claim 4, wherein the transmission information includes stroke setting data, and the processor generates the stroke setting data according to the current setting state of the stylus in response to a user operation. fixed data. 8. A touch system, including: A touch electronic device includes a touch panel and a tactile actuator device, the tactile actuator device is connected to the touch panel; and A stylus includes a pressure sensor and a pen tip, and the pressure sensor is connected to the pen tip, wherein the touch electronic device and the stylus run a time synchronization program during a time synchronization period and execute an information transmission program during an information transmission period, Wherein, during the time synchronization period, the touch panel sends out a beacon signal to receive a synchronization confirmation signal from the stylus through the touch panel, and the touch electronic device encodes the vibration signal according to the transmission information, and after receiving the synchronization confirmation signal, control the tactile actuator device to drive the touch panel to generate the vibration signal, The tip of the stylus receives the vibration signal, the pressure sensor senses the vibration force of the vibration signal, and the stylus decodes the vibration force of the vibration signal to obtain the transmission information. , and the stylus performs functions based on the transmitted information, wherein the transmission information includes at least one of a protocol setting command and a frequency setting command, and the function includes switching at least one of the communication protocol and operating frequency of the stylus, In response to receiving the beacon signal, the stylus sends the synchronization confirmation signal, and decodes the vibration force of the vibration signal after sending the synchronization confirmation signal, The stylus obtains the force level of the vibration force based on the pressure value reported by the pressure sensor, and obtains the value based on the synchronization time point between the force level of the vibration force and the corresponding information transmission period, The stylus pen performs the function according to the numerical value.