[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN202018649U - Electronic whiteboard capable of transmitting files via wireless interface - Google Patents

Electronic whiteboard capable of transmitting files via wireless interface Download PDF

Info

Publication number
CN202018649U
CN202018649U CN2010206928622U CN201020692862U CN202018649U CN 202018649 U CN202018649 U CN 202018649U CN 2010206928622 U CN2010206928622 U CN 2010206928622U CN 201020692862 U CN201020692862 U CN 201020692862U CN 202018649 U CN202018649 U CN 202018649U
Authority
CN
China
Prior art keywords
electronic whiteboard
unit
whiteboard
track
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010206928622U
Other languages
Chinese (zh)
Inventor
刘政旅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waltop International Corp
Original Assignee
Waltop International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waltop International Corp filed Critical Waltop International Corp
Priority to CN2010206928622U priority Critical patent/CN202018649U/en
Application granted granted Critical
Publication of CN202018649U publication Critical patent/CN202018649U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Drawing Aids And Blackboards (AREA)

Abstract

The utility model relates to an electronic whiteboard capable of transmitting files via a wireless interface, which comprises a sensing unit, a signal processing unit, a control unit, a display unit and a wireless transmission unit. The sensing unit generates sensing signals according to the track or position of a touched object, while the signal processing unit processes the sensing signals and generates track signals. The control unit processes and converts the track signals into driving signals and storable or outputtable data. The display unit synchronously displays the track or position of the touched object according to the driving signals. The wireless transmission unit transmits the data to a mobile device.

Description

Can transmit the electronic whiteboard of archives by wave point
Technical field
The utility model relates to a kind of electronic whiteboard, particularly relates to a kind of electronic whiteboard that can transmit archives by wave point.
Background technology
Interactive electric whiteboard is used in various meetings, symposial and the school instruction widely, in order to carry out bulletin, to explain orally and teaching.The mode of operation of existing conditional electronic blank record data is that the user is write the page of finishing, and by a mechanism driving mode, will write the page and write the page of finishing by one scan device (Scanner) scanning, to carry out follow-up image processing and output.The user can be kept by the mode of printing the archives of writing usually with record in addition.Along with for example in vogue and generally use of mobile phone, mobile computer or flat computer of handheld apparatus, particularly the handheld apparatus polygamy is put wireless transmission assembly or function, if electronic whiteboard is equipped with wireless transmission function, then, the user can pass through the wave point transmission by real-time archives with the meeting record as long as passing through handheld apparatus, it is with no paper to reach minutes, has the benefit of environmental protection and energy saving concurrently.Therefore, a kind ofly can satisfy the user by the electronic whiteboard that wave point transmits archives and download the demand that electronic whiteboard is write page data with handheld apparatus.
Borrow because the defective that above-mentioned existing electronic whiteboard exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of electronic whiteboard that can transmit archives of new structure by wave point, can improve general existing electronic whiteboard, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing electronic whiteboard exists, and provide a kind of electronic whiteboard that can transmit archives of new structure by wave point, technical matters to be solved is writing of making that its user uses that blank pen or whiteboard eraser produce on electronic whiteboard or the wiping track can be shown in display screen in real time synchronously, the data that produced also can be handled and be exported in real time by wireless transmission method in real time, also can be stored in the RAM (random access memory) card, therefore can significantly improve the convenience that electronic whiteboard uses by memory card slot.
The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.A kind of electronic whiteboard that can transmit archives by wave point according to the utility model proposes comprises: a sensing unit, and this sensing unit produces induced signal according to the track or the position of contactant; One signal processing unit, this induced signal of this signal processing unit processes also produces trajectory signal; One control module, this control module is handled and changed this trajectory signal to be drive signal and can to store or exportable data; One display unit, this display unit show the track or the position of this contactant synchronously according to this drive signal; And a wireless transmission unit, this wireless transmission unit is with this data transmission to one mobile device.
The purpose of this utility model and solve its technical matters and can also be further achieved by the following technical measures.
Aforesaid electronic whiteboard, wherein said this tablet comprise an electromagnetic type tablet, a capacitive induction plate or a resistance-type tablet.
Aforesaid electronic whiteboard, wherein said this contactant comprises electromagnetic type blank pen and electromagnetic type whiteboard eraser.
Aforesaid electronic whiteboard, the wherein said internal memory that more comprises.
Aforesaid electronic whiteboard, wherein said this internal memory comprise multimedia RAM (random access memory) card (MMC) and SD RAM (random access memory) card (SD Card).
Aforesaid electronic whiteboard, the wherein said output/input interface that more comprises is so that these data export an external device (ED) to.
Aforesaid electronic whiteboard, wherein said this external device (ED) comprise a computing machine, a printer, a carry-on dish or a portable hard drive.
Aforesaid electronic whiteboard, wherein said this output/input interface comprises a universal serial bus.
Aforesaid electronic whiteboard, the File Format of wherein said these data comprise portable file layout (PDF) form, bitmap (BMP) form and jpeg format.
Aforesaid electronic whiteboard, wherein said this wireless transmission unit comprise radio transmitting device or the module of using bluetooth, IEEE802.11 or Wi-fi, radio universal serial bus and Zeebe technology.
Aforesaid electronic whiteboard, the wherein said power control unit that more comprises.
Aforesaid electronic whiteboard, wherein said this display device comprises a LCD Panel.
Aforesaid electronic whiteboard, wherein said this mobile device comprises a mobile phone, a mobile computer or a flat computer.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model provides a kind of electronic whiteboard that can transmit archives by wave point, comprises a sensing unit, a signal processing unit, a control module, a display unit and a wireless transmission unit.Sensing unit produces induced signal according to the track of contactant or position, and this induced signal of signal processing unit processes and produce trajectory signal.Control module is handled and changed this trajectory signal to be drive signal and can to store or exportable data.Display unit shows the track or the position of this contactant synchronously according to this drive signal.Wireless transmission unit is with this data transmission to one mobile device.Can reach suitable technical progress and practicality, and has an extensive value on the industry, it has following advantage at least: exposure can be handled the electronic whiteboard of person's handwriting numerical value and wave point transmission archives in real time, the user uses that blank pen or whiteboard eraser produce on electronic whiteboard writes or the wiping track can be shown in display screen in real time synchronously, the data that produced also can be handled and be exported in real time by wireless transmission method in real time, also can be stored in the RAM (random access memory) card, therefore can significantly improve the convenience that electronic whiteboard uses by memory card slot.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 shows the front view of the electronic whiteboard of this novel embodiment.
Fig. 2 shows the functional frame composition of the electronic whiteboard of this novel embodiment.
Fig. 3 A to Fig. 3 D shows originally user's interface of the control device display screen of the electronic whiteboard of novel embodiment respectively.
100: electronic whiteboard 102: control device
104: clipboard 106: the whiteboard eraser standing groove
108: a blank standing groove 200: electronic whiteboard
201: mobile device 203: external device (ED)
202: control module 204: display unit
206: internal memory 208: signal processing unit
210: sensing unit 212: power control unit
214: output/input interface 216: wireless transmission unit
302: display screen 304: selection key
306: power switch 308: printing key
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of electronic whiteboard, structure, feature and the effect thereof that can transmit archives that the utility model proposes by wave point, describe in detail as after.
Each embodiment of this case below will be described in detail in detail, and cooperate graphic as illustration.Except these are described in detail, this novel can also implementation widely in other embodiments, the substituting easily of any described embodiment, revise, equivalence changes and is included in the scope of this case, and with after claim be as the criterion.In the description of instructions, in order to make the reader this novelly there is a more complete understanding, many specific detail are provided; Yet, this novel may still can enforcement at clipped or all under the prerequisite of these specific detail.In addition, well-known program step or assembly are not described in the details, to avoid causing this novel unnecessary restriction.
Fig. 1 shows the electronic whiteboard of this novel embodiment.As shown in Figure 1, this novel electronic blank 100 comprises a control device 102, a clipboard 104, a whiteboard eraser standing groove 106 and a blank standing groove 108.Electronic whiteboard 100 comprises an interactive electric whiteboard, in the use is to cooperate blank pen and whiteboard eraser.Control device 102 comprises Control Component, signal processing circuit, power control circuit, output/input interface, comprises the assemblies such as display device of display screen.The zone that clipboard 104 provides the user to write for electronic whiteboard 100, clipboard 104 surfaces use the flat board with smooth flat so that blank pen and whiteboard eraser running surface to be provided.Dull and stereotyped material comprises glass or other any material with smooth surface.The writing surface of clipboard 104 is the configuration tablet down, and tablet comprises electromagnetic type tablet, capacitive induction plate, resistance-type tablet.Signal processing circuit receives and handles blank pen or the track of whiteboard eraser on tablet or the signal of wiping action generation.Control Component carries out calculation process according to the signal that signal processing circuit transmits; with the conversion of signals with track or wiping action generation is a shows signal, and display screen shows blank pen or whiteboard eraser track or the wiping vestige on this tablet synchronously according to shows signal.Control Component can be that data are to be stored in internal memory or to export an external device (ED) to the conversion of signals of track or wiping action generation also.
The writing surface that the electromagnetic type tablet lies in clipboard 104 disposes the several piece antenna plate down to constitute the zone that electronic whiteboard 100 provides the user to write.Have a plurality of antenna loops that distribute along X-axis and Y direction respectively on the antenna plate, in order to emission and receiving electromagnetic signals.Antenna loop on the antenna plate then take-up and is opened emission or receiving electromagnetic signals or is closed and suspend emission or receiving electromagnetic signals by the control of the switch of antenna loop correspondence to the frame of electronic whiteboard 100.The switch of antenna loop correspondence is then by scan control and signal processing circuit control.Electromagnetic energy is launched in scan control and signal processing circuit control antenna loop in regular turn one by one, and receive the electromagnetic signal that electromagnetic type blank pen and electromagnetic type blank are fired back, detecting electromagnetic type blank pen and the position of electromagnetic type blank on electronic whiteboard 100 row-coordinate of going forward side by side is located.
Be to cooperate electromagnetic type blank pen and electromagnetic type whiteboard eraser on the electromagnetic type tablet uses.Electromagnetic type blank pen has interlock circuit and the coil that ink refill and that an exportable ink writes can send electromagnetic signal.Ink refill was write the output ink on electronic whiteboard when, coil can send electromagnetic signal simultaneously, made electronic whiteboard produce electromagnetic induction and write down the position and the motion track of electromagnetic type blank pen.Electronic whiteboard writes down the ink person's handwriting on it when writing, and converts an electromagnetic type blank motion track to digital data storage.The electromagnetic type whiteboard eraser then can be simultaneously with an ink written handwriting on the electronic whiteboard and an electromagnetic type blank handwriting erasing.The electromagnetic type whiteboard eraser has in order to the wiper of wiping the ink person's handwriting and is used to launch the interlock circuit and the coil of electromagnetic signal.By the position that coil is arranged at the corresponding wiper center of circle, and with the radius of wiper radius as an erase area, and make electronic whiteboard after sensing the electromagnetic signal that coil sends, defining one overlaps with wiper and has an erase area identical shaped and size, when making the ink person's handwriting of wiper on wiping electronic whiteboard, wipe simultaneously and be defined in the pairing electromagnetic type blank person's handwriting of this ink person's handwriting in this erase area.
The capacitive induction plate then comprises the capacitive sensing loop.The capacitive sensing loop comprises a plurality of induction electrodes (Detection Electrode) and connects the conductor line of induction electrode to signal processing circuit.Induction electrode rearranges an induction detection area, when contactant when for example blank pen or whiteboard eraser are near to or in contact with induction electrode, promptly constitutes an electric capacity between contactant and induction electrode.Contactant be positioned at the position of induction on the detection area promptly near to or in contact with the position of induction electrode, the capacitance of induction electrode then changes because of the electric capacity between contactant and induction electrode.Signal processing circuit is detected the capacitance variation of induction electrode, and is positioned at the position of responding on the detection area by Control Component calculating contactant.
The resistance-type tablet comprises the infrabasal plate that a upper substrate and with upper electrode has lower electrode, and upper and lower base plate is then fitted mutually but separated and keep a distance by sept (Spacers).When upper substrate was exerted pressure in the contact of blank pen or whiteboard eraser, upper electrode contacted conducting with lower electrode, producing the voltage corresponding to blank pen or whiteboard eraser position, and the magnitude of voltage that detects was exported with the position of corresponding blank pen or whiteboard eraser coordinate.The upper substrate of resistance-type tablet has touch point array (upper electrode) and connects the lead layout of touch point, and infrabasal plate has the conductor array (lower electrode) of corresponding touch point array.The height of sept separates touch point array and conductor array, and when the contact of blank pen or whiteboard eraser is exerted pressure, the touch point of touch point array and the conducting of conductor array, therefore the position of blank pen or whiteboard eraser can transmit signals to Control Component by lead, and is positioned at the position of responding on the detection area by Control Component calculating blank pen or whiteboard eraser.
Fig. 2 shows the functional frame composition of the electronic whiteboard of this novel embodiment.This novel electronic blank 200 comprises a control module 202, a display unit 204, internal memory 206, a signal processing unit 208, sensing unit 210, a power control unit 212, output/input interface 214 and a wireless transmission unit 216.Sensing unit 210 comprises tablet and the relevant layout circuit in the electronic whiteboard 200, and tablet comprises electromagnetic type tablet, capacitive induction plate, resistance-type tablet.Sensing unit 210 produces the induced signal of contactant.Signal processing unit 208 comprises signal processing circuit.Signal processing unit 208 is handled the induced signal of sensing unit 210 generations to produce track or position signalling.Control module 202 comprises a microcontroller or processor, is used for track that processing signals processing unit 208 produces or position signalling to carry out every function of this new embodiment, comprises demonstration, printing, deposit and wireless transmission etc.Display unit 204 comprises a display screen and screen driver circuit, and display screen comprises LCD screen, but is not limited to LCD screen.Internal memory 206 comprises built-in internal memory and external internal memory.Built-in internal memory comprises flash memory, random access memory or other storing mode.External internal memory comprises multimedia RAM (random access memory) card (MMC) and SD RAM (random access memory) card flash memory cards such as (SD Card).Electronic whiteboard 200 can connect external power source by power control unit 212.Electronic whiteboard 200 can connect external device (ED) 203 by output/input interface 214.Output/input interface 214 comprises universal serial bus (Universal Serial Bus/USB), but is not limited to universal serial bus, also comprises other I.External device (ED) 203 comprises computing machine, printer, carry-on dish and portable hard drive.Mobile device 201 comprises mobile phone, mobile computer, flat computer and any device with wireless transmission archives function.Wireless transmission unit 216 comprises radio transmitting device or the module of using bluetooth (Bluetooth), IEEE 802.11 or Wi-fi, radio universal serial bus (Wireless Universal Serial Bus) and Zeebe technology.
Contactant for example blank pen or whiteboard eraser is write or wiping produces induced signal in tablet, and is handled to produce the track or the position signalling of contactant by signal processing unit 208.The track of control module 202 processing signals processing units 208 output or position signalling to be converting drive signal to driving screen driver circuit, and the track that contactant is write on electronic whiteboard 200 is shown in the display screen of display unit 204 synchronously.But also can converting the track of signal processing unit 208 output or position signalling to, control module 202 has save File form or exportable data to print output.Control module 202 drives or carries out access memory 206 or exports data to external device (ED) 203 by output/input interface 214 according to user's input operation, or data are transferred to mobile device 201 by wireless transmission unit 216.
In addition user's interface of showing on also can display screen of user by display unit 204 whether select with the track of the contactant on the electronic whiteboard or position be written contents be stored in internal memory 206 or by output/input interface 214 with the written contents on the printer prints electronic whiteboard, or by the written contents on the output/input interface 214 stored electrons blanks in computing machine, dish and portable hard drive with oneself.Control module 202 can convert the signal numerical value of writing or wiping produced to the file data of various forms by built-in program, for example portable file layout or PDF (Portable Document Format), bitmap format or BMP form and JPEG (Joint Photographic Experts Group) form is so that output print and file.Whether user's interface that the user shows on also can the display screen by display unit 204 is selected is the track or the position of contactant with the written contents on the electronic whiteboard transfers to mobile device 201 by wireless transmission unit 216.
Fig. 3 A to Fig. 3 D shows user's interface of the control device display screen of the electronic whiteboard of a novel embodiment respectively.As shown in Figure 3A, whether the user's interface that shows on the display screen 302 of control device among first figure provides the user to select the written contents on the electronic whiteboard to be stored, or export printer to printing the written contents on the electronic whiteboard, or transfer to mobile device by the wireless transmission unit of using Bluetooth technology by output/input interface.The mode that stores can be stored in mobile devices such as carry-on dish by output/input interface, or directly is stored in for example flash memory card such as multimedia RAM (random access memory) card and SD RAM (random access memory) card of external internal memory.Store, export external device (ED) to and carry out wireless transmission before, the signal numerical value that control module must will be write or wiping produced converts the file data of various forms to.Selection key 304 on the control device provides the user to carry out function selecting.306 of power switches are the power switch of electronic whiteboard, and pressing 308 of printing keys can print.Control device comprises memory card slot in addition and uses RAM (random access memory) card in real time with defeated write data record deposit and output on the electronic whiteboard for the user, and memory card slot 208 can hold flash memory cards such as multimedia RAM (random access memory) card and SD RAM (random access memory) card.The I slot also comprises the universal serial bus slot, can provide the electronic whiteboard I to connect devices such as computing machine, printer, carry-on dish.
If the user selects to transfer to mobile device with wireless transmission unit by the selection key on the control device, then the display screen of control device presents user's interface shown in Fig. 3 B, and the user selects to press the OK key behind the Bluetooth technology wireless transmission archives with the choice direction key and can transmit.If the user selects to export printer to print the written contents on the electronic whiteboard by output/input interface by the selection key on the control device, then the display screen of control device presents user's interface shown in Fig. 3 C, and the user presses printing key 308 after with choice direction key selective printing parameter and can print.If the user selects save File by the selection key on the control device, then the display screen of control device presents user's interface shown in Fig. 3 D, the user selects storing mode to press the OK key with the choice direction key can to store, and wherein storing mode comprises mobile devices such as being stored in carry-on dish by output/input interface or is stored in the flash memory card.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims (13)

1. electronic whiteboard that can transmit archives by wave point is characterized in that comprising:
One sensing unit, this sensing unit produces induced signal according to the track or the position of contactant;
One signal processing unit, this induced signal of this signal processing unit processes also produces trajectory signal;
One control module, this control module is handled and changed this trajectory signal to be drive signal and can to store or exportable data;
One display unit, this display unit show the track or the position of this contactant synchronously according to this drive signal; And
One wireless transmission unit, this wireless transmission unit is with this data transmission to one mobile device.
2. electronic whiteboard as claimed in claim 1 is characterized in that this tablet comprises an electromagnetic type tablet, a capacitive induction plate or a resistance-type tablet.
3. electronic whiteboard as claimed in claim 1 is characterized in that this contactant comprises electromagnetic type blank pen and electromagnetic type whiteboard eraser.
4. electronic whiteboard as claimed in claim 1 is characterized in that more comprising an internal memory.
5. electronic whiteboard as claimed in claim 4 is characterized in that this internal memory comprises multimedia RAM (random access memory) card and SD RAM (random access memory) card.
6. electronic whiteboard as claimed in claim 1 is characterized in that more comprising an output/input interface, so that these data export an external device (ED) to.
7. electronic whiteboard as claimed in claim 6 is characterized in that this external device (ED) comprises a computing machine, a printer, a carry-on dish or a portable hard drive.
8. electronic whiteboard as claimed in claim 6 is characterized in that this output/input interface comprises a universal serial bus.
9. electronic whiteboard as claimed in claim 1 is characterized in that the File Format of these data comprises portable file layout, bitmap format and jpeg format.
10. electronic whiteboard as claimed in claim 1 is characterized in that this wireless transmission unit comprises radio transmitting device or the module of using bluetooth, IEEE 802.11 or Wi-fi, radio universal serial bus and Zeebe technology.
11. electronic whiteboard as claimed in claim 1 is characterized in that more comprising a power control unit.
12. electronic whiteboard as claimed in claim 1 is characterized in that this display device comprises a LCD Panel.
13. electronic whiteboard as claimed in claim 1 is characterized in that this mobile device comprises a mobile phone, a mobile computer or a flat computer.
CN2010206928622U 2010-12-24 2010-12-24 Electronic whiteboard capable of transmitting files via wireless interface Expired - Fee Related CN202018649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206928622U CN202018649U (en) 2010-12-24 2010-12-24 Electronic whiteboard capable of transmitting files via wireless interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206928622U CN202018649U (en) 2010-12-24 2010-12-24 Electronic whiteboard capable of transmitting files via wireless interface

Publications (1)

Publication Number Publication Date
CN202018649U true CN202018649U (en) 2011-10-26

Family

ID=44812318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206928622U Expired - Fee Related CN202018649U (en) 2010-12-24 2010-12-24 Electronic whiteboard capable of transmitting files via wireless interface

Country Status (1)

Country Link
CN (1) CN202018649U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102566960A (en) * 2011-12-27 2012-07-11 紫光股份有限公司 Screen image wireless transmission device for tablet computer
CN105871489A (en) * 2015-10-14 2016-08-17 深圳市飞图视讯有限公司 Campus broadcast system
CN110058749A (en) * 2019-04-16 2019-07-26 京东方科技集团股份有限公司 Write display system, method and apparatus
CN110217025A (en) * 2019-04-30 2019-09-10 深圳市恒开源电子有限公司 A kind of intelligence blackboard eraser

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102566960A (en) * 2011-12-27 2012-07-11 紫光股份有限公司 Screen image wireless transmission device for tablet computer
CN105871489A (en) * 2015-10-14 2016-08-17 深圳市飞图视讯有限公司 Campus broadcast system
CN105871489B (en) * 2015-10-14 2019-08-02 深圳市飞图视讯有限公司 Campus Broadcasting System
CN110058749A (en) * 2019-04-16 2019-07-26 京东方科技集团股份有限公司 Write display system, method and apparatus
CN110217025A (en) * 2019-04-30 2019-09-10 深圳市恒开源电子有限公司 A kind of intelligence blackboard eraser

Similar Documents

Publication Publication Date Title
CN201936276U (en) Electronic white board capable of instantly processing handwriting number
US9164638B2 (en) Information processing method and device for electronic device with touch screen
CN105446647A (en) E-ink book and reading note implementation method and device thereof
CN105074624A (en) Portable terminal and method for providing haptic effect
CN105892776A (en) Capacitive Image Sensing System
CN202018649U (en) Electronic whiteboard capable of transmitting files via wireless interface
CN101145087A (en) Hand-writing pen, hand-writing input system, hand-writing remote controller and hand-writing input method
US20140245137A1 (en) Method and apparatus for making contents through writing input on touch screen
US9420144B2 (en) Image forming device to provide preview image for editing manuscript image, display apparatus to display and edit the preview image, and methods thereof
CN109844698A (en) Handwriting pad, notepad and its hand-written inputting method
CN206115418U (en) Install alternately based on electromagnetic type pen wireless data
CN102609700A (en) Digital electronic pen
CN104932622A (en) Mobile terminal protective sleeve and mobile terminal system
CN202996070U (en) Foreign-language learning apparatus utilizing sensor to realize input control
CN205353845U (en) Electronic memo based on electromagnetic type touch screen
CN110018758A (en) Electronic whiteboard, electron plate scrape along electronic pen
CN103838400A (en) Digitizer pen, input device, and operating method thereof
CN210573714U (en) Erasing device of electronic whiteboard
CN103502921B (en) Text indicator method and electronic equipment
CN202533924U (en) Hand-written display screen and hand-written input pen
CN201322919Y (en) Online handwriting device
CN102880232A (en) Tablet personal computer
US20160162175A1 (en) Electronic apparatus
CN207601769U (en) Hand input device and its handwriting input sheet
CN101872550A (en) Electronic reading device with capacitor touch button

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111026

Termination date: 20131224