CN110456928B - Multifunctional handwriting input pen and multifunctional handwriting input system - Google Patents
Multifunctional handwriting input pen and multifunctional handwriting input system Download PDFInfo
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- CN110456928B CN110456928B CN201910747483.4A CN201910747483A CN110456928B CN 110456928 B CN110456928 B CN 110456928B CN 201910747483 A CN201910747483 A CN 201910747483A CN 110456928 B CN110456928 B CN 110456928B
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a multifunctional handwriting input pen and a multifunctional handwriting system. The multifunctional handwriting input pen comprises a power management unit, a CPU control circuit, a mode switching unit, a capacitance electromagnetic switching control circuit and a detection unit, wherein the CPU control circuit is used for receiving input data, processing and controlling the working state of the multifunctional handwriting input pen by outputting control signals, the mode switching unit comprises an electromagnetic branch and a capacitance branch, the electromagnetic branch is respectively connected with the capacitance branch and the CPU control circuit, the capacitance electromagnetic switching control circuit is respectively connected with the CPU control circuit and the mode switching unit, and is used for receiving the control signals of the CPU control circuit and correspondingly controlling the electromagnetic branch or the capacitance branch to be conducted with the CPU control circuit. Compared with the related art, the multifunctional handwriting input pen and the multifunctional handwriting system provided by the invention have stronger adaptability.
Description
Technical Field
The present invention relates to the field of computer peripheral input devices, and in particular, to a multifunctional handwriting input pen and a multifunctional handwriting input system.
Background
With technological advancement, digital electronic information devices already have track input functions, and the implementation of such functions usually adopts handwriting input. Handwriting input pens as digital electronic information devices are widely used, which can not only input characters by handwriting, but also realize drawing, point control operation and the like.
Handwriting input pens in the prior art are usually matched with a handwriting board, and the handwriting input pens in the prior art are generally divided into an electromagnetic pen and a capacitance pen. The capacitive pen is an auxiliary device for simulating human body (usually finger) to complete man-machine conversation by using conductor materials, and various capacitive pen technologies in the prior art have the advantages that the pen point can be very thin, like an oscilloscope probe, signals are coupled to a processing unit in the capacitive pen, and the handwriting board is operated. The electromagnetic pen is used for measuring the pressure sensing of the handwriting board, and the pressure, track and other information of a user can be rapidly captured at any time according to the change of the waveform phase of a received signal caused by the change of the inductance value in the electromagnetic pen.
However, when the handwriting input pen is a capacitive pen, the handwriting input pen must be matched with a capacitive handwriting board for use, and cannot be used on an electromagnetic handwriting board. When the handwriting input pen is an electromagnetic pen, the handwriting input pen must be matched with an electromagnetic handwriting board for use, and cannot be used on a capacitive handwriting board. Resulting in poor suitability of the handwriting input pen.
Therefore, there is a need to provide a new multifunctional handwriting input pen and a multifunctional handwriting input system to solve the above problems.
Disclosure of Invention
Aiming at the technical problem that the suitability of the handwriting input pen is poor because the handwriting input pen in the prior art can only be matched with one of a capacitive handwriting board or an electromagnetic handwriting board, the invention provides a multifunctional handwriting input pen which can be suitable for the capacitive handwriting board and the electromagnetic handwriting board.
A multifunctional handwriting input pen applied to a handwriting pad, comprising:
the power management unit is used for providing power to ensure that each part in the multifunctional handwriting input pen works normally;
the CPU control circuit is used for receiving and processing input data and outputting control signals to control the working state of the multifunctional handwriting input pen;
the mode switching unit is connected with the CPU control circuit and comprises an electromagnetic branch and a capacitance branch, the electromagnetic branch and the capacitance branch are respectively connected with the CPU control circuit, the electromagnetic branch corresponds to the electromagnetic mode of the multifunctional handwriting input pen, and the capacitance branch corresponds to the capacitance mode of the multifunctional handwriting input pen;
the capacitive electromagnetic switching control circuit is respectively connected with the CPU control circuit and the mode switching unit and is used for receiving the control signal of the CPU control circuit and correspondingly controlling the electromagnetic branch or the capacitive branch to be conducted with the CPU control circuit so as to enable the multifunctional handwriting input pen to be converted into an electromagnetic mode or a capacitive mode;
the detection unit is connected with the CPU control circuit and is used for providing key detection data and pressure detection data to the CPU control circuit.
Preferably, the power management unit includes a battery charging circuit, a battery protection circuit and a voltage stabilizing circuit which are electrically connected in sequence, and the voltage stabilizing circuit provides a stable voltage source to the CPU control circuit.
Preferably, the detection unit comprises a key detection circuit and a pressure detection circuit which are respectively connected with the CPU control circuit, wherein the key detection circuit is used for providing key detection data and outputting the key detection data after being processed by the CPU control circuit, and the pressure detection circuit is used for providing pressure detection data and outputting the pressure detection data after being processed by the CPU control circuit.
Preferably, the key detection circuit comprises a voltage input end, a first resistor, a first switch, a second resistor, a second switch and a grounding end, wherein the first resistor and the first switch are arranged between the voltage input end and the grounding end in series, the second resistor and the second switch are arranged between the voltage input end and the grounding end in series, a series circuit formed by the first resistor and the first switch and a series circuit formed by the second resistor and the second switch are arranged in parallel, and the CPU control circuit is connected between the first resistor and the first switch and between the second resistor and the second switch.
Preferably, the pressure detection circuit comprises a reference power supply and a pressure sensor connected with the reference power supply, and the reference power supply and the pressure sensor are respectively connected with the CPU control circuit.
Preferably, the multifunctional handwriting input pen further comprises a self-oscillation circuit connected with the mode switching unit and a transmitting unit connected with the self-oscillation circuit.
Preferably, the capacitive branch circuit comprises a capacitive pen antenna amplifying circuit and a capacitive pen modulating circuit connected with the capacitive pen antenna amplifying circuit, the capacitive pen modulating circuit is connected with the self-oscillation circuit, and the capacitive pen modulating circuit receives an amplified signal through the capacitive pen antenna amplifying circuit to modulate the self-oscillation circuit.
Preferably, the electromagnetic branch comprises an electromagnetic pen modulation circuit, and the electromagnetic pen modulation circuit is connected with the self-oscillation circuit.
A multifunctional handwriting input system comprising a handwriting pad and a multifunctional handwriting input pen as claimed in any one of the above.
Compared with the prior art, the multifunctional handwriting input pen disclosed by the invention has the advantages that the electromagnetic branch and the capacitance branch are integrated in the mode switching unit, the electromagnetic branch and the capacitance branch respectively correspond to the electromagnetic mode and the capacitance mode of the multifunctional handwriting input pen, and the CPU control circuit outputs the control signal to the capacitance electromagnetic switching control circuit to realize the adjustment of the electromagnetic mode and the capacitance mode of the multifunctional handwriting input pen, so that the multifunctional handwriting input pen can be respectively suitable for the use of the capacitance handwriting board and the electromagnetic handwriting board, and the suitability of the multifunctional handwriting input pen is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a block diagram of a multifunctional handwriting input pen provided by the invention;
FIG. 2 is a block diagram of the key detection circuit shown in FIG. 1;
fig. 3 is a block diagram of the pressure detection circuit shown in fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Please refer to fig. 1 in combination. The invention provides a multifunctional handwriting input pen 100 applied to a handwriting board, wherein the multifunctional handwriting input pen 100 comprises a power management unit 10, a CPU control circuit 20, a detection unit 30, a mode switching unit 40, a capacitive electromagnetic switching control circuit 50, a self-oscillation circuit 60 and a transmitting unit 70.
The power management unit 10 is configured to provide power to ensure that each portion of the multifunctional handwriting input pen 100 works normally. The power management unit 10 includes a battery charging circuit 11, a battery protection circuit 13, and a voltage stabilizing circuit 15, which are electrically connected in sequence, wherein the voltage stabilizing circuit 15 provides a stable voltage source to the CPU control circuit 20 to ensure that the CPU control circuit 20 operates stably. Specifically, in the present embodiment, the multifunctional handwriting input pen 100 is powered by a battery.
The CPU control circuit 20 is configured to receive and process input data and to output a control signal to control an operation state of the multifunctional handwriting input pen 100.
The detection unit 30 is connected to the CPU control circuit 20 and is configured to provide key detection data and pressure detection data to the CPU control circuit 20. Specifically, the detection unit 30 includes a key detection circuit 31 and a pressure detection circuit 33, which are respectively connected to the CPU control circuit 20, the key detection circuit 31 is configured to provide key detection data and output the key detection data after being processed by the CPU control circuit 20, and the pressure detection circuit 33 is configured to provide pressure detection data and output the pressure detection data after being processed by the CPU control circuit 20.
Please refer to fig. 2 in combination. The key detection circuit 31 includes a voltage input terminal 311, a first resistor 312, a first switch 313, a second resistor 314, a second switch 315 and a ground terminal 316, the first resistor 312 and the first switch 313 are serially arranged between the voltage input terminal 311 and the ground terminal 316, the second resistor 314 and the second switch 315 are serially arranged between the voltage input terminal 311 and the ground terminal 316, and a serial circuit formed by the first resistor 312 and the first switch 313 and a serial circuit formed by the second resistor 314 and the second switch 315 are parallelly arranged, and the CPU control circuit 20 is connected between the first resistor 312 and the first switch 313 and between the second resistor 314 and the second switch 315.
Please refer to fig. 3 in combination. The pressure detection circuit 33 includes a reference power source 331 and a pressure sensor 333 connected to the reference power source 331, and the reference power source 331 and the pressure sensor 333 are connected to the CPU control circuit 20, respectively.
The mode switching unit 40 is connected to the CPU control circuit 20, the mode switching unit 40 includes an electromagnetic branch 41 and a capacitance branch 43, the electromagnetic branch 41 and the capacitance branch 43 are respectively connected to the CPU control circuit 20, the electromagnetic branch 41 corresponds to an electromagnetic mode of the multifunctional handwriting input pen 100, and the capacitance branch 43 corresponds to a capacitance mode of the multifunctional handwriting input pen 100.
The electromagnetic branch 41 includes an electromagnetic pen modulation circuit 411, and the electromagnetic pen modulation circuit 411 is connected to the self-oscillation circuit 60.
The capacitive branch 43 includes a capacitive pen antenna amplifying circuit 431 and a capacitive pen modulating circuit 433 connected to the capacitive pen antenna amplifying circuit 431, and the capacitive pen modulating circuit 433 is connected to the self-oscillation circuit 60.
The capacitive electromagnetic switching control circuit 50 is respectively connected to the CPU control circuit and the mode switching unit 40, and the capacitive electromagnetic switching control circuit 50 is configured to receive a control signal from the CPU control circuit and conduct the circuit branch 41 or the capacitive branch 43 with the CPU control circuit, so that the multifunctional handwriting input pen 100 is converted into an electromagnetic mode or a capacitive mode. Specifically, the multifunctional handwriting input pen 100 is provided with a switching key with a key in an electromagnetic mode and a capacitor mode, and after receiving a key command, the CPU control circuit 20 outputs a control signal, and when the electromagnetic mode is used, the capacitor branch 43 can be closed, and when the capacitor mode is used, the electromagnetic branch 41 can be closed. In this embodiment, the mode conversion key for controlling the multifunctional handwriting input pen 100 is integrated on the power switch key, that is, the power switch key can realize both power on and mode switching.
The self-oscillating circuit 60 is high frequency and high voltage and is modulated, here as a low frequency pulse modulation.
When the multifunctional handwriting input pen 100 is in the electromagnetic mode, the CPU control circuit 20 transmits a pulse signal with a corresponding frequency according to the pen-pressing frequency and the key-pressing frequency of the electromagnetic pen, and modulates the self-oscillation circuit 60 through the electromagnetic pen modulation circuit 411.
When the multifunctional handwriting input pen 100 is in a capacitive mode, the capacitive pen antenna amplifying circuit amplifies weak signals of the receiving capacitive handwriting board, and the amplified signals are modulated by the capacitive pen modulating circuit 433 to the self-oscillation circuit 60.
The transmitting unit 70 is connected to the self-oscillation circuit 60, and the transmitting unit 70 is used for transmitting a signal of the multifunctional handwriting input pen 100. In this embodiment, the emitting unit 70 is located at the pen tip.
To ensure that small signals of the handwriting board are received, positive and negative power supplies with positive and negative symmetry are required to be boosted, and to ensure sufficient amplification, positive and negative power supplies with the voltage being boosted to tens of volts are required to be boosted. The multifunctional handwriting input pen 100 further comprises a DC-DC boost circuit connected to the power management circuit 10 and the self-oscillation circuit 60, respectively.
The working principle of the multifunctional handwriting input pen 100 is as follows: because the power supply is battery powered, when the power supply is normally not used, the circuit is in a power-off state, when the power supply key is pressed, the circuit is started, and in the embodiment, the circuit defaults to an electromagnetic mode (of course, in other embodiments, the circuit can default to a capacitive mode) at the moment, and the power supply key is pressed again to perform mode conversion, so that the circuit is converted into a capacitive (or electromagnetic) mode, and mode conversion is realized. When the multifunctional handwriting input pen 100 is not used for a period of time, the multifunctional handwriting input pen is automatically powered off, and meanwhile, a user can manually power off by pressing the power key for a long time. When in the electromagnetic mode, the CPU control circuit 20 transmits a pulse signal with a corresponding frequency according to the pen-pressing frequency, the key-pressing frequency, etc. of the electromagnetic pen, modulates the self-oscillation circuit 60 through the electromagnetic pen modulating circuit 411, the signal is transmitted to the electromagnetic handwriting board through the pen head to be received, the electromagnetic handwriting board determines the pen-point position by judging the received line-field antenna position, and the pressure feeling and the key-pressing value are resolved through the frequency, thereby completing the control of the electromagnetic pen. When in the capacitive mode, the capacitive pen antenna amplifying circuit receives the weak signal of the capacitive handwriting board and amplifies the weak signal to modulate the self-oscillation circuit 60 (the modulating information comprises information such as pressure sensing, keys and the like, the pressure sensing, the keys and the like are obtained through demodulation of the capacitive handwriting board), the modulating signal is transmitted to the pen point to simulate an analog touch of a person, and it can be understood that if communication with the capacitive handwriting board is added, the pressure sensing and the keys can be transmitted to the capacitive handwriting board, and the capacitive handwriting board can complete control of the capacitive pen through judgment and pressure sensing of the touch position and the reception of the keys.
Meanwhile, the invention also provides a multifunctional handwriting input system, which comprises a handwriting board and the multifunctional handwriting input pen 100.
Compared with the prior art, the multifunctional handwriting input pen disclosed by the invention has the advantages that the electromagnetic branch and the capacitance branch are integrated in the mode switching unit, the electromagnetic branch and the capacitance branch respectively correspond to the electromagnetic mode and the capacitance mode of the multifunctional handwriting input pen, and the CPU control circuit outputs the control signal to the capacitance electromagnetic switching control circuit to realize the adjustment of the electromagnetic mode and the capacitance mode of the multifunctional handwriting input pen, so that the multifunctional handwriting input pen can be respectively suitable for the use of the capacitance handwriting board and the electromagnetic handwriting board, and the suitability of the multifunctional handwriting input pen is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (7)
1. A multifunctional handwriting input pen applied to a handwriting board, comprising:
the power management unit is used for providing power to ensure that each part in the multifunctional handwriting input pen works normally;
the CPU control circuit is used for receiving and processing input data and outputting control signals to control the working state of the multifunctional handwriting input pen;
the mode switching unit is connected with the CPU control circuit and comprises an electromagnetic branch and a capacitance branch, the electromagnetic branch and the capacitance branch are respectively connected with the CPU control circuit, the electromagnetic branch corresponds to the electromagnetic mode of the multifunctional handwriting input pen, and the capacitance branch corresponds to the capacitance mode of the multifunctional handwriting input pen;
the capacitive electromagnetic switching control circuit is respectively connected with the CPU control circuit and the mode switching unit and is used for receiving the control signal of the CPU control circuit and correspondingly controlling the electromagnetic branch or the capacitive branch to be conducted with the CPU control circuit so as to enable the multifunctional handwriting input pen to be converted into an electromagnetic mode or a capacitive mode;
the detection unit is connected with the CPU control circuit and is used for providing key detection data and pressure detection data to the CPU control circuit,
the multifunctional handwriting input pen also comprises a self-oscillation circuit connected with the mode switching unit and a transmitting unit connected with the self-oscillation circuit,
the capacitive branch circuit comprises a capacitive pen antenna amplifying circuit and a capacitive pen modulating circuit connected with the capacitive pen antenna amplifying circuit, the capacitive pen modulating circuit is connected with the self-oscillation circuit, the capacitive pen modulating circuit receives amplified signals through the capacitive pen antenna amplifying circuit to modulate the self-oscillation circuit,
when the multifunctional handwriting input pen is in a capacitance mode, the weak signal of the receiving capacitance handwriting board is amplified through the capacitance pen antenna amplifying circuit, and the amplified signal is modulated by the capacitance pen modulating circuit to the self-oscillation circuit.
2. The multifunctional handwriting input pen according to claim 1, wherein the power supply management unit comprises a battery charging circuit, a battery protection circuit and a voltage stabilizing circuit which are sequentially and electrically connected, and the voltage stabilizing circuit provides a stable voltage source to the CPU control circuit.
3. The multifunctional handwriting input pen according to claim 1, wherein the detection unit comprises a key detection circuit and a pressure detection circuit which are respectively connected with the CPU control circuit, the key detection circuit is used for providing key detection data and outputting the key detection data after being processed by the CPU control circuit, and the pressure detection circuit is used for providing pressure detection data and outputting the pressure detection data after being processed by the CPU control circuit.
4. The multifunctional handwriting input pen according to claim 3, wherein the key detection circuit comprises a voltage input end, a first resistor, a first switch, a second resistor, a second switch and a grounding end, wherein the first resistor and the first switch are connected in series between the voltage input end and the grounding end, the second resistor and the second switch are connected in series between the voltage input end and the grounding end, a series circuit formed by the first resistor and the first switch and a series circuit formed by the second resistor and the second switch are connected in parallel, and the CPU control circuit is connected between the first resistor and the first switch and between the second resistor and the second switch.
5. A multifunctional handwriting input pen according to claim 3 and characterized in that said pressure detection circuit comprises a reference power supply and a pressure sensor connected with said reference power supply, said reference power supply and said pressure sensor being connected with said CPU control circuit respectively.
6. The multi-function handwriting input pen of claim 1, wherein said electromagnetic branch comprises an electromagnetic pen modulation circuit, said electromagnetic pen modulation circuit being connected to said self-oscillating circuit.
7. A multifunctional handwriting input system, characterized by comprising a handwriting board and a multifunctional handwriting input pen according to any of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747483.4A CN110456928B (en) | 2019-08-14 | 2019-08-14 | Multifunctional handwriting input pen and multifunctional handwriting input system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910747483.4A CN110456928B (en) | 2019-08-14 | 2019-08-14 | Multifunctional handwriting input pen and multifunctional handwriting input system |
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| CN110456928A CN110456928A (en) | 2019-11-15 |
| CN110456928B true CN110456928B (en) | 2023-11-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW202024868A (en) * | 2018-12-19 | 2020-07-01 | 翰碩電子股份有限公司 | Interactions between input device and user interface |
| CN111045537A (en) * | 2019-11-28 | 2020-04-21 | 联想(北京)有限公司 | Touch pen, control method and computer storage medium |
| CN111459315A (en) * | 2020-04-20 | 2020-07-28 | 北京科加触控技术有限公司 | an electronic pen |
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| CN201936269U (en) * | 2011-01-26 | 2011-08-17 | 汉王科技股份有限公司 | Touch stylus |
| EP2813918A1 (en) * | 2013-06-11 | 2014-12-17 | Anoto AB | Electronic pen |
| CN105867711A (en) * | 2016-04-28 | 2016-08-17 | 深圳市华鼎星科技有限公司 | Real-handwriting styluses and touch devices |
| CN105929985A (en) * | 2016-04-28 | 2016-09-07 | 深圳市华鼎星科技有限公司 | True chirography touch pen and touch device with radio frequency transmitting-receiving transmission function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5984259B2 (en) * | 2012-09-20 | 2016-09-06 | 株式会社ワコム | Position detection device |
| TWI543064B (en) * | 2014-05-14 | 2016-07-21 | 和冠股份有限公司 | Fast motion sensing method, control circuit and electromagnetic sensing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201936269U (en) * | 2011-01-26 | 2011-08-17 | 汉王科技股份有限公司 | Touch stylus |
| EP2813918A1 (en) * | 2013-06-11 | 2014-12-17 | Anoto AB | Electronic pen |
| CN105867711A (en) * | 2016-04-28 | 2016-08-17 | 深圳市华鼎星科技有限公司 | Real-handwriting styluses and touch devices |
| CN105929985A (en) * | 2016-04-28 | 2016-09-07 | 深圳市华鼎星科技有限公司 | True chirography touch pen and touch device with radio frequency transmitting-receiving transmission function |
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