CN103927025B - Handwriting digital achieving device and method - Google Patents
Handwriting digital achieving device and method Download PDFInfo
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- CN103927025B CN103927025B CN201410175327.2A CN201410175327A CN103927025B CN 103927025 B CN103927025 B CN 103927025B CN 201410175327 A CN201410175327 A CN 201410175327A CN 103927025 B CN103927025 B CN 103927025B
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Abstract
The invention discloses a handwriting digital achieving device and method. The handwriting digital achieving device comprises a hollow pen body and a pen refill used for paper writing. The pen refill is arranged in the pen body, and an inertia measurement system, a pen point pressure induction system, a control unit, a wireless communication module and a battery are further arranged in the pen body. The pen point pressure induction system outputs digital signals to the control unit. The control unit judges that a pen point is in a writing state or a pen raising state according to the digital signals. The inertia measurement system measures the acceleration generated when the pen point is used for writing and outputs the acceleration to the control unit. The control unit solves the integral of time according to the acceleration output by the inertial measurement system, the writing speed of the pen point is obtained, the integral of time is solved again, displacement of the pen point on a paper plane is obtained, and therefore the information of the position, relative to the initial position, of the pen point on the paper plane is obtained. According to the handwriting digital achieving device and method, traditional paper writing is achieved, meanwhile, handwriting digital operation is achieved, the writing experience and habits of traditional paper writing are retained, and popularization and promotion of the handwriting digital achieving device are facilitated.
Description
Technical field
The present invention relates to a kind of person's handwriting Digital Realization device, further relate to a kind of person's handwriting digital implementation, belong to several
According to processing meanss technical field.
Background technology
Person's handwriting digitizing technique has major application meaning to education sector and office realm.In information technology application in religion
Under the prospect and trend educated, students in middle and primary schools do not change existing writing style, and person's handwriting digitizing technique will generate the number of students' work
Word record, helps daily teaching to realize more preferable Learner diagnosis, teaches students in accordance with their aptitude, the education and teaching idea such as interactive learning.Permitted at present
Enable the digitized technology of person's handwriting is all that not meet traditional ways of writing or the positioning mode of person's handwriting be nonautonomy more.Symbol
Close traditional ways of writing to refer to be write on common paper with common pen, do not change existing ways of writing or script
Test.Autonomous positioning refers to can be achieved with the positioning of written handwriting not against the external device (ED) of pen.
There is a kind of digital handwriting plate, including metal marker and hand-written base plate, the hand-written experience of metal marker is different from general in prior art
Writing feel in common paper for the logical pen and experience are it is impossible to produce traditional written handwriting, and the positioning of metal marker person's handwriting must rely on
The devices such as external device (ED), such as infrared ray, ultrasound wave, or the location sensitive of hand-written base plate are realizing the positioning of person's handwriting coordinate.Band
The panel computer of former person's handwriting writing pencil be also a kind of non-traditional write, the person's handwriting digital implementation of non-autonomous positioning.No matter
It is will supporting with the electromagnetic induction screen of panel computer to be used using active pen or passive pen, could positioning wiring pen
The coordinate position of mark.
It is disadvantageous in that：Compared based on the person's handwriting digital implementation of non-traditional ways of writing and non-autonomous positioning
The earth changes people's writing experience at ordinary times and writing style, and be unfavorable for product popularizes application；Existing hand-held shifting
Inertia system such as MEMS acceleration sensor chip that dynamic equipment uses although volume, power consumption and cost can popularize should
With but because the reason such as positioning precision based on MEMS technology inertia system is not high, error is larger, also much not reaching to writing
The precision of person's handwriting positioning and accuracy requirement.
Content of the invention
It is an object of the invention to overcoming deficiency of the prior art, providing a kind of person's handwriting Digital Realization device, solving
In prior art, person's handwriting digitalizer does not possess traditional paper writing experience and autonomous positioning can not realize person's handwriting digitized
Technical problem.
The object of the present invention is achieved like this：A kind of person's handwriting Digital Realization device, including hollow handwriting with for paper
Open the pen core write, described pen core is built in handwriting it is characterised in that being additionally provided with inertial measurement system, pen in described handwriting
Sharp pressure sensitive system, control unit, wireless communication module and battery；Described inertial measurement system and pen point pressure sensing system
Unite, and wireless communication module is connected with control unit by digital interface respectively；
Described inertial measurement system is used for measuring the acceleration that nib produces because mobile when writing, and acceleration is led to
Cross digital interface to export to control unit；
Described pen point pressure induction system includes pressure transducer and analog-digital converter, and pressure transducer senses nib pressure
Power, described pressure conversion is become electric signal transmission to analog-digital converter, it is defeated that analog-digital converter converts the electrical signal to digital signal
Go out to control unit；
According to the digital signal that pen point pressure induction system sends, described control unit judges that nib is in and writes or lift
Pen state, the positional information of the acceleration calculation nib that control unit exports according to inertial measurement system；
Described wireless communication module is used for for digitized person's handwriting positional information radioing to external reception equipment；
Described battery is used for supplying to inertial measurement system, pen point pressure induction system, control unit and wireless communication module
Electricity.
Described inertial measurement system includes micromechanics and mass body displacement measuring device, described micromechanics include housing and
It is arranged at the mass body in housing, between mass body and housing, has resisting medium, mass body is connected with housing by spring, described
Mass body displacement measuring device includes light source and the photosensitive sensor being correspondingly arranged with light source, and described light source is fixed on mass body
On, the beam direction that light source sends is vertical with the direction of displacement that mass body produces because of acceleration, and described photosensitive sensor is fixed
On housing, the beam orthogonal that the sensitized lithography of photosensitive sensor and light source send, control unit is felt according on photosensitive sensor
The light situation of photoelement learns that light source position obtains final product the displacement of mass body, the displacement meter that control unit occurs according to mass body
Calculate acceleration when output nib is write.
It is provided with figure adjustment unit, the electricity of figure adjustment unit detection described pressure transducer output in described control unit
Signal, judges to whether there is direct current signal and high frequency ac signal in the signal of telecommunication, once detect thering is direct current signal in the signal of telecommunication
But there is not high frequency ac signal, then by nib speed zero setting.
Described control unit is connected with data storage cell also by digital interface, and described data storage cell is used for storing
Person's handwriting digital information, and by wireless communication module or digital interface, person's handwriting digital information is exported and set to external reception
Standby.
Hardware switch button for controlling person's handwriting Digital Realization device use state is connected with described control unit.
Described control unit is connected with luminescence display unit also by digital interface, and luminescence display unit is used for display and uses
State, battery electric quantity, data connection state information.
Vibrator for vibrating alert is also associated with described control unit.
Described pen core is pencil-lead or refill for ball-point pen or ink refill or Signing refill or brush pen.
Compared with prior art, the invention has the beneficial effects as follows：1st, carry out realizing person's handwriting number while traditional paper is write
Wordization operates, and makes user profile not only possess the advantage that paper is easy to save from damage, has been provided simultaneously with Electronic saving, transmission conveniently soon
Prompt advantage；2nd, need not other external equipments, you can realize person's handwriting autonomous positioning, remain simultaneously traditional paper writing experience with
Custom, the popularization beneficial to product and popularization；3rd, adopt micromechanics cooperation photosensitive sensor measurement nib acceleration, possess higher
Sensitivity and certainty of measurement；4th, possesses figure adjustment unit, user pauses pen every time just by initial velocity zero setting, and real time correction makes nib
Positional information is more accurate, thus ensureing that the person's handwriting after digitized is more nearly true handwriting；5th, possesses radio communication mold
Block makes data transfer more convenient；6th, it is provided with luminescence display unit and vibrator, make user more intuitively learn electricity
The information such as pond consumption, use state, data connection state.
Another object of the present invention is to providing a kind of person's handwriting digital implementation, solve person's handwriting numeral in prior art
Change the technical problem that implementation method operation is inconvenient, degree of accuracy is not high.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of person's handwriting digital implementation, bag
Include following steps：
Step one：Judge whether nib is in the state of writing：Described pressure is simultaneously turned by pressure transducer sensing pen point pressure
Change electric signal transmission into analog-digital converter, analog-digital converter converts the electrical signal to digital signal and exports to control unit, controls
Unit processed judges nib working condition according to digital signal；
Step 2：Nib writing speed corrects：The signal of telecommunication of figure adjustment unit detection described pressure transducer output, sentences
Whether there is direct current signal and high frequency ac signal, once detect and having direct current signal in the signal of telecommunication but do not exist in power-off signal
High frequency ac signal, then by nib speed zero setting；
Step 3：Calculate nib and write acceleration：Light source sends optical signal to photosensitive sensor, and control unit is according to photosensitive
On sensor, the light situation of photosensitive element show that light source position obtains final product the displacement of mass body, and control unit is sent out according to mass body
Raw displacement calculates acceleration when output nib is write；
Step 4：Calculate positional information on paper plane for the nib：Control unit is according to adding that inertial measurement system exports
The integration of speed seeking time, along with the initial velocity of figure adjustment unit output, draws nib writing speed；Speed is write to nib
The integration of degree seeking time again, draws displacement on paper plane for the nib, thus draw nib on paper plane with respect to initial
The positional information of position；
Step 5：Output person's handwriting digital information：The positional information of person's handwriting is sent out by control unit by wireless communication module
Deliver to external reception equipment, realize person's handwriting digitized.
Described wireless communication module passes through WLAN802.11 agreement or Bluetooth agreement and external reception equipment channel radio
Letter connects.
Compared with prior art, the invention has the beneficial effects as follows：A phenomenon that user is paused carries out real-time detection, and pause pen every time
Will nib initial velocity zero setting, in time correction nib initial velocity, reduce velocity error, thus improving the accurate of pen tip position information
Degree；Acceleration is write using micromechanics cooperation photosensitive sensor measurement nib, improves sensitivity and the essence of inertial measurement system
Exactness；Carried out data transmission using wireless communications mode, transmitted data amount is big, transmission speed is fast.
Brief description
Fig. 1 is the structural representation of person's handwriting Digital Realization device.
Fig. 2 is the structural representation of inertial measurement system.
Fig. 3 is the schematic block circuit diagram of person's handwriting Digital Realization device.
In figure：1st, pen core；1a, nib；2nd, handwriting；3rd, housing；4th, mass body；5th, spring；6th, resisting medium；7th, light source；
8th, photosensitive sensor.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in Figure 1 to Figure 3, person's handwriting Digital Realization device, the pen core 1 write including hollow handwriting 2 and for paper,
Pen core 1 is built in handwriting 2.Pen core 1 can be that pencil-lead, refill for ball-point pen, ink refill, Signing refill, brush pen or other can
Carry out the pen core that traditional paper is write.Inertial measurement system, pen point pressure induction system, control unit, wireless communication module and
Battery is respectively arranged in handwriting 2.Inertial measurement system, pen point pressure induction system and wireless communication module pass through numeral respectively
Interface is connected with control unit.Wireless communication module is used for for person's handwriting digital information radioing to external reception equipment.Electricity
Pond can also can be selected for rechargeable battery from disposable battery, for inertial measurement system, pen point pressure induction system, control
Unit processed and wireless communication module power supply.
Inertial measurement system is used for measuring the acceleration that nib 1a produces because mobile when writing, and acceleration is passed through
Digital interface exports to control unit.It includes micromechanics and mass body displacement measuring device, and micromechanics includes housing 3 and sets
It is placed in the mass body 4 in housing 3, between mass body 4 and housing 3, is filled with resisting medium 6, resisting medium 6 can be air, oil
Or other medium.When mass body 4 is subjected to displacement to 4 one obstruction power of mass body, the size of this obstruction power is equal to resisting medium 6
The speed of related movement of mass body 4 is multiplied by the damped coefficient of resisting medium 6.Mass body 4 is connected with housing 3 by spring 5, works as matter
When amount body 4 is subjected to displacement, spring 5 gives mass body 4 one counteracting forces, and this counteracting force is directly proportional to the displacement of mass body 4,
Proportionality coefficient is the coefficient of elasticity of spring 5.Mass body displacement measuring device includes light source 7 and the sense being correspondingly arranged with light source 7
Optical sensor 8, light source 7 is fixed on mass body 4, moves with the movement of mass body 4, the beam direction that light source 7 sends with
The direction of displacement that mass body 4 produces because of acceleration is vertical.Photosensitive sensor 8 is fixed on housing 3, the sense of photosensitive sensor 8
The beam orthogonal that optical plane is sent with light source 7.The sensitized lithography of photosensitive sensor 8 is two being made up of numerous photosensitive arrangement of elements
Dimension photosensitive array, control unit learns, according to the light situation of photosensitive element on photosensitive sensor 8, the photosensitive unit irradiated by light beam
Plain position, you can draw the displacement of mass body 4, control unit calculates output nib 1a according to the displacement that mass body 4 occurs and writes
When acceleration.Light source 7 can be selected for light emitting diode, also can be selected for light beam and gathers the preferable laser of effect, photosensitive sensor 8 can
From CCD or CMOS photosensitive sensor.Due to nib, on paper plane, movement is two-dimentional, and inertial measurement system is also two dimension
, therefore can measure laterally simultaneously（X-axis）And longitudinal direction（Y-axis）Accekeration.
Pen point pressure induction system includes pressure transducer and analog-digital converter, and the top of pen core 1 is resisted against pressure sensing
On the sensing element of device.Pressure transducer senses nib 1a pressure, converts pressure into electric signal transmission to analog-digital converter, mould
Number converter converts the electrical signal to digital signal and exports to control unit.Control unit sends according to pen point pressure induction system
Digital signal judge that nib 1a is in and write or lift pen state.When nib 1a is in lift pen state for a long time, control single
Unit judge pen be in not use state thus can send stop signal give each module, stop written handwriting digitized process with
Save battery electric quantity.When nib 1a is again at writing state, each process of control unit automatic, according to inertia measurement system
The positional information of the acceleration calculation nib 1a of system output.It is also associated with control unit for controlling person's handwriting Digital Realization to fill
Put the hardware switch button of use state, controlled by user's Self-operating.
Because writing under state, nib 1a and paper friction can produce dither, and dither leads to pressure transducer defeated
There is high frequency ac signal in the signal of telecommunication going out, and when user pauses, this high frequency ac signal will disappear.Accordingly, control list
It is provided with figure adjustment unit, the software in control unit for the Main Basiss of realizing of digital correction function is implemented, hardware in unit
Share with control unit.The signal of telecommunication of figure adjustment unit real-time detection pressure transducer output, judges whether deposit in the signal of telecommunication
In high frequency ac signal, if there are direct current signal but there is not high frequency ac signal, then show that a time pen in user, immediately now
By nib 1a speed zero setting, the initial velocity of nib 1a when writing as next time.
Control unit is connected with data storage cell also by digital interface, and data storage cell is used for storing person's handwriting numeral
Change information, and exported person's handwriting digital information to external reception equipment by wireless communication module or digital interface.Control single
Unit is connected with luminescence display unit also by digital interface, and user can be according to the glow color of luminescence display unit, brightness, flicker
Frequency and fluorescent lifetime length are judging the information such as the use state of this device, battery electric quantity, data connection state.For making user
The status information of this device of more intuitive understanding, control unit is also associated with the vibrator for vibrating alert, by shaking
The oscillation intensity of dynamic device and time of vibration length are reminding the different conditions residing for this device of user.
A kind of person's handwriting digital implementation using above-mentioned person's handwriting Digital Realization device, comprises the steps：
Step one：Judge whether nib 1a is in the state of writing：Pressure is simultaneously turned by pressure transducer sensing nib 1a pressure
Change electric signal transmission into analog-digital converter, analog-digital converter converts the electrical signal to digital signal and exports to control unit, controls
Unit processed judges nib 1a working condition according to digital signal.
Step 2：Nib 1a writing speed corrects：Figure adjustment unit detects the signal of telecommunication of pressure transducer output, judges
Whether there is high frequency ac signal, once detect there is not high frequency ac signal in the signal of telecommunication, then by nib 1a in the signal of telecommunication
Speed zero setting.Under the state of writing, the signal of telecommunication of pressure transducer output has direct current signal and high frequency ac signal composition：Direct current
Signal, represents there is pressure between nib 1a and paper；High frequency ac signal, represents there is friction, pen between nib 1a and paper
Sharp 1a writing speed is not zero.When nib 1a pauses, the friction between nib 1a and paper disappears, and high frequency ac signal disappears
Lose.Show that nib 1a pauses pen when the signal of telecommunication only has direct current signal when there is not high frequency ac signal, now nib 1a speed should
It is zero, the velocity amplitude that now control unit is given is speed error value.In writing process, control unit can be using numeral
The zero velocity state that correction unit is given constantly repeatedly corrects the velocity error occurring in calculating process, makes the person's handwriting providing
Position is more accurate.
Step 3：Calculate nib 1a and write acceleration：Light source 7 sends optical signal to photosensitive sensor 8, and control unit is passed through
The light situation reading photosensitive element on photosensitive sensor 8 learns the position of light source, obtains final product the displacement of mass body 4, controls single
Unit calculates acceleration when output nib 1a writes according to the displacement that mass body 4 occurs.
Step 4：Calculate positional information on paper plane for the nib 1a：Control unit exports according to inertial measurement system
The integration of acceleration seeking time, along with the initial velocity of figure adjustment unit output, draws nib 1a writing speed；To nib 1a
The integration of writing speed seeking time again, draws displacement on paper plane for the nib 1a, thus drawing nib 1a on paper plane
Positional information with respect to initial position.
Step 5：Output person's handwriting digital information：The positional information of nib 1a is passed through wireless communication module by control unit
Send to external reception equipment, realize person's handwriting digitized.Wireless communication module passes through WLAN802.11 agreement or Bluetooth association
View and external reception equipment wireless communication connection.Outer not accepting device can be that WLAN802.11 association supported by mobile phone or computer etc.
View or the equipment of Bluetooth agreement.
The above is only the preferred embodiment of the present invention it is noted that coming for those skilled in the art
Say, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and deform, these improve and deformation also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of person's handwriting Digital Realization device, the pen core write including hollow handwriting and for paper, described pen core is built in
It is characterised in that being additionally provided with inertial measurement system, pen point pressure induction system, control unit, wireless in described handwriting in handwriting
Communication module and battery；Described inertial measurement system and pen point pressure induction system, and wireless communication module is respectively by numeral
Interface is connected with control unit；Described inertial measurement system is used for measuring the acceleration that nib produces because mobile when writing,
And acceleration is exported to control unit by digital interface；Described pen point pressure induction system includes pressure transducer and modulus
Transducer, pressure transducer senses pen point pressure, and described pressure conversion is become electric signal transmission to analog-digital converter, analog digital conversion
Device converts the electrical signal to digital signal and exports to control unit；Described control unit sends according to pen point pressure induction system
Digital signal judges that nib is in and writes or lift pen state, the acceleration calculation that control unit exports according to inertial measurement system
The positional information of nib；Described wireless communication module sets for digitized person's handwriting positional information is radioed to external reception
Standby；Described battery is used for inertial measurement system, pen point pressure induction system, control unit and wireless communication module power supply；
Described inertial measurement system includes micromechanics and mass body displacement measuring device, and described micromechanics includes housing and setting
Mass body in housing, has resisting medium between mass body and housing, mass body is connected with housing by spring, described quality
Position measuring system includes light source and the photosensitive sensor being correspondingly arranged with light source, and described light source is fixed on mass body, light
The beam direction that source sends is vertical with the direction of displacement that mass body produces because of acceleration, and described photosensitive sensor is fixed on housing
On, the beam orthogonal that the sensitized lithography of photosensitive sensor and light source send, control unit is according to photosensitive element on photosensitive sensor
Light situation learn that light source position obtains final product the displacement of mass body, the displacement that control unit occurs according to mass body calculates output
Acceleration when nib is write.
2. person's handwriting Digital Realization device according to claim 1 is it is characterised in that be provided with numeral in described control unit
Correction unit, the signal of telecommunication of figure adjustment unit detection described pressure transducer output, judge to whether there is direct current in the signal of telecommunication
Signal and high frequency ac signal, once detect and having direct current signal but there is not high frequency ac signal, then by nib in the signal of telecommunication
Speed zero setting.
3. person's handwriting Digital Realization device according to claim 1 and 2 it is characterised in that described control unit also by
Digital interface is connected with data storage cell, and described data storage cell is used for storing person's handwriting digital information, and by wireless
Communication module or digital interface export person's handwriting digital information to external reception equipment.
4. person's handwriting Digital Realization device according to claim 3 is it is characterised in that be connected with use in described control unit
In the hardware switch button controlling person's handwriting Digital Realization device use state.
5. person's handwriting Digital Realization device according to claim 4 is it is characterised in that described control unit is also by numeral
Interface is connected with luminescence display unit, and luminescence display unit is used for showing use state, battery electric quantity, data connection state letter
Breath.
6. person's handwriting Digital Realization device according to claim 5 is it is characterised in that be also associated with described control unit
Vibrator for vibrating alert.
7. person's handwriting Digital Realization device according to claim 1 is it is characterised in that described pen core is pencil-lead or circle
Pearl pen core or ink refill or Signing refill or brush pen.
8. the person's handwriting digital implementation of the person's handwriting Digital Realization device described in a kind of employing claim 2, its feature exists
In comprising the steps：
Step one：Judge whether nib is in the state of writing：Described pressure conversion is simultaneously become by pressure transducer sensing pen point pressure
To analog-digital converter, analog-digital converter converts the electrical signal to digital signal and exports to control unit electric signal transmission, controls single
Unit judges nib working condition according to digital signal；
Step 2：Nib writing speed corrects：The signal of telecommunication of figure adjustment unit detection described pressure transducer output, judges electricity
Whether there is direct current signal and high frequency ac signal, once detect and having direct current signal in the signal of telecommunication but there is not high frequency in signal
AC signal, then by nib speed zero setting；
Step 3：Calculate nib and write acceleration：Light source sends optical signal to photosensitive sensor, and control unit is according to photosensitive sensing
On device, the light situation of photosensitive element show that light source position obtains final product the displacement of mass body, and control unit occurs according to mass body
Displacement calculates acceleration when output nib is write；
Step 4：Calculate positional information on paper plane for the nib：The acceleration that control unit exports according to inertial measurement system
The integration of seeking time, along with the initial velocity of figure adjustment unit output, draws nib writing speed；To nib writing speed again
The integration of secondary seeking time, draws displacement on paper plane for the nib, thus draw nib on paper plane with respect to initial position
Positional information；
Step 5：Output person's handwriting digital information：Control unit by the positional information of person's handwriting by wireless communication module send to
External reception equipment, realizes person's handwriting digitized.
9. person's handwriting digital implementation according to claim 8 is it is characterised in that described wireless communication module passes through
WLAN802.11 agreement or Bluetooth agreement and external reception equipment wireless communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175327.2A CN103927025B (en) | 2014-04-29 | 2014-04-29 | Handwriting digital achieving device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175327.2A CN103927025B (en) | 2014-04-29 | 2014-04-29 | Handwriting digital achieving device and method |
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| Publication Number | Publication Date |
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| CN103927025A CN103927025A (en) | 2014-07-16 |
| CN103927025B true CN103927025B (en) | 2017-02-08 |
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| CN201410175327.2A Expired - Fee Related CN103927025B (en) | 2014-04-29 | 2014-04-29 | Handwriting digital achieving device and method |
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| CN109278440B (en) * | 2018-09-25 | 2020-06-02 | 绵阳鼎飞益电子科技有限公司 | System for be used for parkinson syndrome patient to write |
| CN111660702B (en) * | 2020-06-23 | 2021-09-21 | 湖南省骏北科技有限公司 | Original handwriting recording intelligent pen based on inertial measurement |
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| CN203084666U (en) * | 2013-03-21 | 2013-07-24 | 东莞恒涌电子制品有限公司 | Universal intelligent pen |
| CN103744541A (en) * | 2014-01-26 | 2014-04-23 | 上海鼎为电子科技（集团）有限公司 | Writing pen, electronic terminal and writing system |
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|---|---|
| CN103927025A (en) | 2014-07-16 |
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