Handwriting tablet and method for adapting the handwriting tablet to a host computer

Abstract

The present invention provides a handwriting tablet, which includes an antenna board, a signal processing module connected to the antenna board, a main control module connected to the signal processing module, a system identification module connected to the main control module, a screen switching module and a memory. The antenna board is used to send an excitation signal and receive an induction signal generated by an electromagnetic pen under the excitation of the excitation signal; the signal processing module is used to receive the induction signal transmitted by the antenna board and process it to obtain a coordinate signal; the system identification module is used to receive and identify the instructions transmitted by the host computer, and the instructions include MS OS Descriptor instructions or macOS driver identification instructions; the screen switching module processes the output coordinates of the induction signal transmitted by the signal processing module and corresponds it to the screen of the host computer. The handwriting tablet provided by the present invention is conducive to users using the handwriting tablet for drawing and handwriting, and is also convenient for the handwriting tablet to adapt to different host computers.

Description

[Technical field]

[0001] The present invention relates to a handwriting board system, and in particular to a handwriting board and a method and system for adapting the handwriting board to a host computer. [Background technology]

[0002] At present, handwriting tablets are widely used in the field of handwriting, painting and handwriting. When users use handwriting tablets, the host may be a desktop computer, laptop computer, mobile phone, e-reader or tablet computer. The operating system of desktop computers and laptop computers is Windows or macOS system, and the operating system of mobile phones, e-readers and tablet computers is Android system. When desktop computers and laptops are used on the desktop, the screen direction is generally horizontal, while mobile phones and tablet computers are handheld devices, and their screen direction is generally vertical.

[0003] Since the screens of different hosts are different, the working area of ​​the handwriting tablet needs to correspond to the screen direction of the host. If it is not matched, the handwritten shape may be inconsistent with the shape displayed on the screen, for example, if you draw a circle on the handwriting tablet, the host screen will display an ellipse.

[0004] Therefore, it is necessary to provide a handwriting tablet and a method and system for adapting the handwriting tablet to a host computer. [Summary of the invention]

[0005] The screen forms of different hosts in the current prior art are different, and the working area of ​​the handwriting board needs to correspond according to the screen direction of the host. The handwritten shape may be inconsistent with the shape displayed on the screen. Therefore, the present invention provides a handwriting board and a method for adapting it to a host computer.

[0006] A handwriting tablet, comprising:

[0007] Antenna board: used to send excitation signals and receive induction signals generated by the electromagnetic pen under the stimulation of the excitation signal;

[0008] Signal processing module: connected to the antenna board, receiving the sensing signal transmitted by the antenna board, and processing to obtain the coordinate signal;

[0009] System identification module: connected to the host computer, used to receive and identify the instructions transmitted by the host computer, the instructions including MS OS Descriptor instructions or macOS driver identification instructions;

[0010] Screen switching module: after processing the output coordinates of the sensing signal transmitted by the signal processing module, it corresponds to the screen of the host computer, wherein the processing includes proportional scaling or exchanging the X-axis and Y-axis of the output coordinates;

[0011] Main control module: connected with the signal processing module, the system identification module and the screen switching module, used for receiving the identification result of the system identification module and the coordinate signal obtained by the signal processing module, and sending instructions to the screen switching module to select the processing mode.

[0012] Preferably, the screen switching mode controls the working mode of the handwriting tablet to include a landscape mode, a first portrait mode and a second portrait mode. When the handwriting tablet is in the landscape mode or the first portrait mode, the screen switching module scales the output coordinates proportionally and outputs them. When the handwriting tablet is in the second portrait mode, the screen switching mode swaps the X-axis and Y-axis of the output coordinates and outputs them.

[0013] Preferably, when the handwriting tablet is in the first portrait mode, the handwriting tablet is placed horizontally, its working area is reduced and the vertical rectangular area is retained; when the handwriting tablet is in the second portrait mode, the handwriting tablet is rotated 90 degrees so that its working area corresponds to the screen of the host computer.

[0014] Preferably, the handwriting tablet further includes a memory, and the memory is used to store the working mode of the handwriting tablet.

[0015] Preferably, the signal processing module includes: an amplifier, which amplifies the sensing signal received by the antenna board and outputs an amplified signal; a signal processor, which processes the amplified signal; an integration circuit, which integrates the signal processed by the signal processor and outputs an integrated signal; an analog-to-digital converter, which performs analog-to-digital conversion on the integrated signal and outputs a digital signal to obtain the electromagnetic pen coordinate signal, wherein the coordinate signal includes position information and pressure information.

[0016] Preferably, the handwriting tablet further includes a button arranged on one side of the handwriting tablet, wherein the button is connected to the main control module to control the switching of the working mode of the handwriting tablet between the landscape mode, the first portrait mode and the second portrait mode.

[0017] The present invention also provides a method for adapting a handwriting tablet to a host computer, providing the aforementioned handwriting tablet, comprising the following steps:

[0018] Step S01, connecting the handwriting board to a host computer;

[0019] Step S02, the system identification module receives and identifies the instruction transmitted by the host computer, and sends the identification result to the main control module;

[0020] Step S03, the main control module receives the result of the system identification module and the coordinate signal obtained by the signal processing module, and sends an instruction to the screen switching module to select a specific processing method;

[0021] Step S04: the screen switching module selects the working mode of the handwriting board and the processing method of the output coordinates of the screen switching mode according to the instruction of the main control module.

[0022] Preferably, in step S04, when the handwriting tablet is in the landscape mode or the first portrait mode, the handwriting tablet is placed horizontally, and the screen switching module scales the output coordinates proportionally and outputs them; when the handwriting tablet is in the second portrait mode, the handwriting tablet is rotated 90 degrees and placed, and the screen switching mode swaps the X-axis and Y-axis of the output coordinates and outputs them.

[0023] Preferably, the connection method in step S01 is a USB port or a Bluetooth connection.

[0024] Preferably, the screen switching mode processing of the output coordinates in step S04 is implemented by using the keys of the handwriting board.

[0025] Compared with the prior art, the handwriting tablet provided by the present invention is used to identify the system of the host computer by setting a system identification module and a screen switching module, so as to proportionally scale or exchange the X-axis and Y-axis of the output coordinates, so as to achieve the same shape of the screen display of the handwriting tablet and the host computer, which is beneficial for users to use the handwriting tablet for drawing and handwriting, and is also convenient for the handwriting tablet to adapt to different host computers.

Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0027] Figure 1 This is a structural block diagram of the handwriting board provided by the present invention;

[0028] Figure 2 A flowchart of a method for adapting a handwriting tablet to a host computer provided by the present invention;

[0029] Figure 3 A schematic diagram of different working modes of the handwriting tablet provided by the present invention;

[0030] Figure 4 A schematic diagram of the manual switching mode of the handwriting tablet provided by the present invention. [Specific implementation method]

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 The present invention provides a handwriting tablet 100, which includes an antenna board 10, a signal processing module 20 connected to the antenna board 10, a main control module 30 connected to the signal processing module 20, a system identification module 40 connected to the main control module 30, a screen switching module 50 and a memory 60.

[0033] The antenna board 10 includes multiple X-axis coils and multiple Y-axis coils, each of the X-axis coils and each of the Y-axis coils is used to send an excitation signal, or receive an induction signal generated by the electromagnetic pen under the excitation of the excitation signal, and transmit the induction signal to the signal processing module 20.

[0034] The signal processing module 20 is connected to the antenna board 10, receives the sensing signal transmitted by the antenna board 10, and processes it to obtain a coordinate signal. Specifically, the signal processing module 20 includes an amplifier 21, a signal processor 22, an integration circuit 23, and an analog-to-digital converter 24. The amplifier 21 amplifies the sensing signal received by the antenna board 10 and outputs an amplified signal; the signal processor 22 processes the amplified signal; the integration circuit 23 integrates the signal processed by the signal processor 22 and outputs an integrated signal; the analog-to-digital converter 24 performs analog-to-digital conversion on the integrated signal and outputs a digital signal to obtain the coordinate signal of the electromagnetic pen, and the coordinate signal includes position information and pressure information.

[0035] The main control module 30 is respectively connected to the signal processing module 20, the system identification module 40 and the screen switching module 50, and is used to receive the recognition result of the system identification module 40 and the coordinate signal obtained by the signal processing module 20, and send instructions to the screen switching module 50 to select a specific processing method.

[0036] The system identification module 40 is connected to the host computer 200, and is used to receive and identify the instructions transmitted by the host computer 200, and the instructions include MS OS Descriptor instructions or macOS driver identification instructions. The host computer 200 can be a desktop computer, a laptop computer, a mobile phone, an e-reader or a tablet computer. Specifically, when the system identification module 40 receives the MSOS Descriptor instruction, it identifies that the connected system is a Windows system, and when it receives the macOS driver identification instruction, it identifies that the connected system is a macOS system. If it does not receive the MS OS Descriptor instruction or the macOS driver identification instruction, it identifies that the connected system is an Android system.

[0037] Please refer to Figure 1 and Figure 3 , the screen switching module 50 processes the output coordinates of the sensing signal transmitted by the signal processing module 20 and corresponds them to the screen of the host computer 200, wherein the processing includes proportional scaling or exchanging the X-axis and Y-axis of the output coordinates. Specifically, the screen switching mode 50 controls the switching of the working mode of the handwriting tablet 100, and the working modes include a landscape mode 51, a first portrait mode 52, and a second portrait mode 53. When the handwriting tablet 100 is in the landscape mode 51 or the first portrait mode 52, the screen switching module 50 scales the output coordinates and outputs them; when the handwriting tablet is in the second portrait mode 53, the screen switching mode 50 exchanges the X-axis and Y-axis of the output coordinates and outputs them. Furthermore, when the handwriting tablet 100 is in the first portrait mode 52, the handwriting tablet 100 is placed horizontally, its working area is reduced and the vertical rectangular area is retained; when the handwriting tablet 100 is in the second portrait mode 52, the handwriting tablet 100 is rotated 90 degrees so that its working area corresponds to the screen of the host computer 200.

[0038] The memory 60 is used to store the working mode of the handwriting board to facilitate the working mode of the handwriting board.

[0039] Please refer to Figure 1 and Figure 4The handwriting board 100 further includes a button 70 disposed on one side of the handwriting board, the button 70 is connected to the main control module 10, and controls the switching of the working mode of the handwriting board 100 between the landscape mode 51, the first portrait mode 52, and the second portrait mode 53. In this embodiment, the working modes of the handwriting board 100 are respectively realized by pressing two buttons at the same time. Specifically, pressing the third button and the fourth button at the same time switches the working mode to the landscape mode 51, pressing the second button and the fifth button at the same time switches the working mode to the first portrait mode 52, and pressing the first button and the sixth button at the same time switches the working mode to the second portrait mode 53.

[0040] Please refer to Figure 1 and Figure 2 The present invention also provides a method for adapting a handwriting tablet to a host computer 200, providing the aforementioned handwriting tablet 100, comprising the following steps:

[0041] Step S01, connecting the handwriting board to the host computer 200, wherein the connection method is a USB port or a Bluetooth connection;

[0042] Step S02, the system identification module receives and identifies the instruction transmitted by the host computer 200, and sends the identification result to the main control module;

[0043] Step S03, the main control module receives the result of the system identification module and the coordinate signal obtained by the signal processing module, and sends an instruction to the screen switching module to select a specific processing method;

[0044] Step S04, the screen switching module selects the working mode of the handwriting board and the processing method of the output coordinates in the screen switching mode according to the instruction of the main control module. Among them, when the handwriting board is in the horizontal screen mode 51 or the first vertical screen mode 52, the handwriting board is placed horizontally, and the screen switching module 50 scales the output coordinates proportionally and outputs them; when the handwriting board is in the second vertical screen mode 53, the handwriting board is rotated 90 degrees and placed, and the screen switching mode 50 swaps the X-axis and Y-axis of the output coordinates and outputs them. In addition, the processing method of the output coordinates in the screen switching mode can also be achieved through the buttons of the handwriting board.

[0045] Compared with the prior art, the handwriting tablet 100 provided by the present invention is used to identify the system of the host computer 200 by setting a system identification module 40 and a screen switching module 50, so as to proportionally scale or exchange the X-axis and Y-axis of the output coordinates, so as to achieve the same shape of the screen display of the handwriting tablet 100 and the host computer 200, which is beneficial for users to use the handwriting tablet 100 for drawing and handwriting, and is also convenient for the handwriting tablet 100 to adapt to different host computers 200.

[0046] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. A handwriting tablet, characterized in that: It includes: The antenna board is used to send an excitation signal and receive an induction signal generated by the electromagnetic pen under the excitation of the excitation signal; A signal processing module, connected to the antenna board, receives the sensing signal transmitted by the antenna board, and processes it to obtain a coordinate signal; A system identification module, connected to the host computer, for receiving and identifying instructions transmitted by the host computer, wherein the instructions include MS OS Descriptor instructions or macOS driver identification instructions, for identifying the system of the host computer; A screen switching module processes the output coordinates of the sensing signal transmitted by the signal processing module and corresponds them to the screen of the host computer, wherein the processing includes proportional scaling or exchanging the X-axis and Y-axis of the output coordinates; The main control module is connected to the signal processing module, the system identification module and the screen switching module, and is used to receive the identification result of the system identification module and the coordinate signal obtained by the signal processing module, and send instructions to the screen switching module to select a processing method.

2. The handwriting tablet according to claim 1, characterized in that: The screen switching module controls the working mode of the handwriting tablet, including a landscape mode, a first portrait mode and a second portrait mode. When the handwriting tablet is in the landscape mode or the first portrait mode, the screen switching module scales the output coordinates proportionally and outputs them. When the handwriting tablet is in the second portrait mode, the screen switching module swaps the X-axis and Y-axis of the output coordinates and outputs them.

3. The handwriting tablet according to claim 2, characterized in that: When the handwriting tablet is in the first portrait mode, the handwriting tablet is placed horizontally, its working area is reduced and the vertical rectangular area is retained; when the handwriting tablet is in the second portrait mode, the handwriting tablet is rotated 90 degrees so that its working area corresponds to the screen of the host computer.

4. The handwriting tablet according to claim 2, characterized in that: The handwriting board also includes a memory, and the memory is used to store the working mode of the handwriting board.

5. The handwriting tablet according to claim 1, characterized in that: The signal processing module includes: an amplifier, which amplifies the sensing signal received by the antenna board and outputs an amplified signal; a signal processor, which processes the amplified signal; an integration circuit, which integrates the signal processed by the signal processor and outputs an integrated signal; an analog-to-digital converter, which performs analog-to-digital conversion on the integrated signal and outputs a digital signal to obtain the electromagnetic pen coordinate signal, and the coordinate signal includes position information and pressure information.

6. The handwriting tablet according to claim 1, characterized in that: The handwriting board also includes a button arranged on one side of the handwriting board, and the button is connected to the main control module to control the switching of the working mode of the handwriting board between the horizontal screen mode, the first vertical screen mode and the second vertical screen mode.

7. A method for adapting a handwriting tablet to a host computer, characterized in that: Providing a handwriting tablet according to any one of claims 1 to 5, comprising the following steps: Step S01, connecting the handwriting board to a host computer; Step S02, the system identification module receives and identifies the instruction transmitted by the host computer, and sends the identification result to the main control module; Step S03, the main control module receives the result of the system identification module and the coordinate signal obtained by the signal processing module, and sends an instruction to the screen switching module to select a specific processing method; Step S04: the screen switching module selects the working mode of the handwriting board and the processing method of the output coordinates by the screen switching module according to the instruction of the main control module.

8. The method for adapting a handwriting tablet to a host computer according to claim 7, characterized in that: In step S04, when the handwriting tablet is in the landscape mode or the first portrait mode, the handwriting tablet is placed horizontally, and the screen switching module scales the output coordinates proportionally and outputs them; when the handwriting tablet is in the second portrait mode, the handwriting tablet is rotated 90 degrees and placed, and the screen switching module swaps the X-axis and Y-axis of the output coordinates and outputs them.

9. The method for adapting a handwriting tablet to a host computer according to claim 7, characterized in that: In step S01, the connection method is USB port or Bluetooth connection.

10. The method for adapting a handwriting tablet to a host computer according to claim 7, characterized in that: In step S04, the screen switching module processes the output coordinates through the keys of the handwriting board.

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