CN104793776A - Electronic drawing board, handwriting pen and method for inputting and displaying handwriting information through electronic drawing board - Google Patents
Electronic drawing board, handwriting pen and method for inputting and displaying handwriting information through electronic drawing board Download PDFInfo
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- CN104793776A CN104793776A CN201410028204.6A CN201410028204A CN104793776A CN 104793776 A CN104793776 A CN 104793776A CN 201410028204 A CN201410028204 A CN 201410028204A CN 104793776 A CN104793776 A CN 104793776A
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Abstract
The invention provides an electronic drawing board, a handwriting pen and a method for inputting and displaying handwriting information through the electronic drawing board. The electronic drawing board is used for displaying and inputting the handwriting information, and comprises an input board, the handwriting pen, a plurality of sensors and a display device. Pressure data are produced by pressing the pressure sensors so that the handwriting information can be input. Color data are produced through a color adaptor. A microcontroller converts the pressure data and the color data into wireless signals. The sensors at the corresponding positions receive the wireless signals and convert the wireless signals into control signals. The display device is used for displaying the handwriting information according to the control signals and the positions of the sensors. The electronic drawing board does not need to be connected with the computer through a data line. The electronic drawing board is small in product size and convenient to carry, has a color selecting function and can display various colors.
Description
Technical field
The present invention relates to field of electronic display, particularly the method for the input of a kind of electronic drawing board, writing pencil and electronic drawing board and display hand-written information.
Background technology
Existing electronic drawing board, when entering handwritten information, mostly by responding to the position of writing pencil and being reported to computing machine, after computer disposal positional information, then controls the hand-written information of the display device display input of electronic drawing board.Existing electronic drawing board needs to be connected with computing machine by data line, which results in existing electronic drawing board and be not easy to carry, and existing electronic drawing board does not possess the function of changes colour.
Summary of the invention
For solving the problem, the invention provides a kind ofly to be easy to carry, the method for electronic drawing board, writing pencil and the electronic drawing board input with color selecting function and display hand-written information.
A kind of electronic drawing board provided in the present invention one specific embodiment, for display and entering handwritten information, described electronic drawing board comprises: tablet, and described tablet is provided with input area; Writing pencil, described writing pencil comprises pressure inductor, mixing color device and micro controller, when described writing pencil presses the primary importance of the input area of described tablet, described pressure inductor for generation of pressure data to input described hand-written information, described mixing color device is for generation of color data, and described micro controller is used for described pressure data and described color data to be converted to wireless signal; Several inductors, described inductor two dimension arranged adjacent the input area of corresponding described tablet, when described writing pencil presses the described primary importance of the input area of described tablet, inductor corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal; And display device, described display device is provided with viewing area, and the second place that described display device is used for controlling according to described control signal and described primary importance described viewing area shows described hand-written information.
Preferably, described micro controller comprises two digital to analog converters and sending module, described digital to analog converter is used for respectively described pressure data and described color data being converted to pen pressure voltage digital signal and color voltage digital signal, and described sending module is used for described pen pressure voltage digital signal and described color voltage digital signal to be converted to wireless signal.
Preferably, described micro controller also comprises two comparers and two internal storage locations, described two comparers are respectively used to by pressure data described in generation interruption Coutinuous store and described color data thus produce described pressure data and described color data continuously, and described internal storage location is used for storing described pen respectively and presses voltage digital signal and described color voltage digital signal.
Preferably, described display device comprises control device and display board, described display board is provided with described viewing area, described control device is used for described control signal and described primary importance to be converted to display, described display board shows described hand-written information according to described display with the described second place in described viewing area, wherein, described control signal comprises pen pressure sizes values and input color value, and described display comprises second place coordinate, handwriting thickness value and Show Color value.
Preferably, described tablet is clear glass, described tablet is covered on described display board, described viewing area and described input area overlap, described primary importance and described second place overlap, several inductors described are arranged at the dead astern, viewing area of described display board, and described sending module is arranged at described pressure inductor dead astern.
Preferably, the described inductor of predetermined number receives described wireless signal and after described wireless signal is converted to described control signal, described control device is for resolving described control signal and when the pressure of pen described in described control signal sizes values exceedes predetermined value, described control signal being converted to described display.
Preferably, described display device also comprises memory device, described memory device is for storing described display, described electronic drawing board also comprises electronics rubber, and described electronics rubber is used for deleting display in described memory device to remove the hand-written information shown in described display board by sending erase signal.
Preferably, described sending module is infrared transmitter, and described inductor is infrared inductor, and described wireless signal is infrared signal.
Preferably, described display board is LED or LCD, and the display screen of described LED or LCD forms described viewing area.
A kind of writing pencil also provided in the present invention one specific embodiment, for entering handwritten information on the tablet of electronic drawing board to show on the display device of electronic drawing board, described writing pencil comprises pressure inductor, mixing color device and micro controller, when described writing pencil presses described tablet, described pressure inductor for generation of pressure data to input described hand-written information, described mixing color device is for generation of color data, described micro controller is used for that described pressure data and described color data are converted to wireless signal and receives described wireless signal to make the inductor of electronic drawing board tablet pressing place, thus show described hand-written information according to the display device of described wireless signal control electronic drawing board.
Preferably, described micro controller comprises two digital to analog converters and sending module, described digital to analog converter is used for respectively described pressure data and described color data being converted to pen pressure voltage digital signal and color voltage digital signal, and described sending module is used for described pen pressure voltage digital signal and described color voltage digital signal to be converted to wireless signal.
Preferably, described micro controller also comprises two comparers and two internal storage locations, described comparer is used for interrupting described pen respectively and presses voltage digital signal and described color voltage digital signal to be sent to described sending module, and described internal storage location is for storing described pen pressure voltage digital signal and described color voltage digital signal.
Preferably, described sending module is infrared transmitter, and described sending module is arranged at described pressure inductor dead astern, and described wireless signal is infrared signal.
A kind of electronic drawing board input also provided in the present invention one specific embodiment and the method for display hand-written information, described electronic drawing board is provided with writing pencil, described method comprises: on described electronic drawing board, arrange input area, viewing area and several inductors, described inductor two dimension arranged adjacent corresponding described input area; The primary importance that described writing pencil presses described input area produces pressure data; Described writing pencil produces color data; Described pressure data and described color data are converted to wireless signal by described writing pencil; Inductor corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal; And the second place that described electronic drawing board controls described viewing area according to described control signal and described primary importance shows described hand-written information.
Preferably, described pressure data and color data are converted to wireless signal and specifically comprise by described writing pencil: respectively described pressure data and described color data are converted to pen pressure voltage digital signal and color voltage digital signal; And described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal.
Preferably, described described pressure data and color data being converted to respectively before pen presses voltage digital signal and color voltage digital signal also comprises: in two comparers, store once described pressure data and described color data respectively; Described described pressure data and described color data being converted to respectively after pen presses voltage digital signal and color voltage digital signal also comprises: store described pen pressure voltage digital signal and described color voltage digital signal; And also comprise after described pen pressure voltage digital signal and described color voltage digital signal be converted to wireless signal: judge whether described comparer all interrupts, if described comparer all interrupts, then renew the described pressure data of storage and described color data at described two comparer relayings.
Preferably, described electronic drawing board shows described hand-written information according to the second place that described control signal and primary importance control described viewing area and specifically comprises: described control signal and described primary importance are converted to display; And show described hand-written information according to described display with the described second place in described viewing area, wherein, described control signal comprises pen pressure sizes values and input color value, and described display comprises second place coordinate, handwriting thickness value and Show Color value.
Preferably, described viewing area and described input area overlap, described primary importance and described second place overlap, several inductors described are arranged at rear, described viewing area.
Preferably, the inductor that described primary importance is corresponding receives described wireless signal and described wireless signal is converted to control signal and specifically comprises: judge whether that the described inductor of predetermined number receives described wireless signal; That described wireless signal is converted to control signal; And describedly described control signal and described primary importance are converted to display specifically comprise: judge in described control signal, whether pen pressure sizes values exceedes predetermined value; When the pressure of pen described in described control signal sizes values exceedes predetermined value, described control signal is converted to display.
Preferably, described described control signal and described primary importance are converted to display after also comprise: store described display; And describedly also to comprise after showing described hand-written information in the described second place of described viewing area according to described display: judge whether that reception receives erase signal, if receive described erase signal, delete display in described memory device to remove the hand-written information shown in described viewing area.
Preferably, described inductor is infrared inductor, and described wireless signal is infrared signal.
Preferably, described viewing area is the display screen of LED or LCD.
Electronic drawing board of the present invention, the method of writing pencil and electronic drawing board input and display hand-written information, pressure data is produced to input described hand-written information by press pressure inductor, mixing color device produces color data, described pressure data and color data are converted to wireless signal by micro controller, the inductor of correspondence position receives described wireless signal and described wireless signal is converted to control signal, display device is hand-written information according to the position display of described control signal and inductor, do not need to be connected with computing machine by data line, small product size is little, be easy to carry, and possess color selecting function, multiple color can be shown.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of electronic drawing board in an embodiment of the present invention.
Fig. 2 is the tablet of electronic drawing board and the schematic diagram of inductor in Fig. 1.
Fig. 3 is the system construction drawing of the writing pencil of electronic drawing board in Fig. 1.
Fig. 4 is the system construction drawing of the micro controller of writing pencil in Fig. 3.
Fig. 5 is the system construction drawing of electronic drawing board in an embodiment of the present invention.
Fig. 6 is the electronics rubber of electronic drawing board in an embodiment of the present invention and the system construction drawing of display device.
Fig. 7 is the method flow diagram one of electronic drawing board input and display hand-written information in an embodiment of the present invention.
Fig. 8 is the method flow diagram one in Fig. 7, pressure data and color data being converted to wireless signal tool.
Fig. 9 is the method flow diagram two in Fig. 7, pressure data and color data being converted to wireless signal tool.
Figure 10 is the method flow diagram that the second place controlling described viewing area according to described control signal and primary importance in Fig. 7 shows described hand-written information.
Figure 11 is the method flow diagram two of electronic drawing board input and display hand-written information in Fig. 7.
Figure 12 is the method flow diagram that in an embodiment of the present invention, display hand-written information deleted by electronic drawing board electronics rubber.
Main element symbol description
| Writing pencil | 10 |
| Pressure transducer | 11 |
| Micro controller | 12 |
| Digital to analog converter | 121 |
| Sending module | 122 |
| Comparer | 123 |
| Internal storage location | 124 |
| Mixing color device | 13 |
| Inductor | 20 |
| Tablet | 30 |
| Display device | 40 |
| Control device | 41 |
| Display board | 42 |
| Memory device | 43 |
| Electronics rubber | 50 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the method for the electronic drawing board in the present invention and electronic drawing board display handwritten input information is described in further detail.
Figure 1 shows that the system construction drawing of electronic drawing board in the embodiment of the invention.The electronic drawing board of the present embodiment, for display and entering handwritten information, comprise tablet 30, writing pencil 10, several inductors 20 and display device 40, wherein tablet 30 is provided with input area, and display device 40 is provided with viewing area.
Writing pencil 10 comprises pressure transducer 11, mixing color device 13 and micro controller 12, when described writing pencil 10 presses the primary importance of the input area of described tablet 30, described pressure transducer 11 for generation of pressure data to input described hand-written information, described mixing color device 13 is for generation of color data, and described micro controller 12 is for being converted to wireless signal by described pressure data and color data.
The two-dimentional arranged adjacent of inductor 20 input area of corresponding described tablet 30, when described writing pencil 10 presses the primary importance of the input area of described tablet 30, inductor 20 corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal.
Display device 40 shows described hand-written information for the second place controlling described viewing area according to described control signal and described primary importance.
Specifically, when handwritten input information, writing pencil 10 presses and produces physical pressure with the input area of tablet 30, according to piezoelectric effect, the pressure transducer 11 of writing pencil 10 senses that physical pressure produces pressure data, and pressure data is sent to micro controller 12.
After the pressure transducer 11 of writing pencil 10 produces pressure data, mixing color device 13 in writing pencil 10 starts to produce color data, described color data is color voltage signal, in the present embodiment, a body for writing pencil 10 has RGB three color selecting buttons and selects for user, when RGB three color selecting buttons are individually pressed, mixing color device 13 exports corresponding redness, green, blue voltage signal is to micro controller 12, when RGB three color selecting buttons are by multiple or when pressing simultaneously, according to RGB (Red Green Blue) three primary colors synthesising law, mixing color device 13 exports corresponding color voltage signal to micro controller 12, such as, when RGB three color selecting buttons are concurrently depressed, mixing color device 13 exports RGB voltage signal to micro controller 12, hot green color selecting button is concurrently depressed and blue select button is not pressed time, mixing color device 13 exports red green voltage signal to micro controller 12.Owing to having mixing color device 13 in writing pencil 10, thus writing pencil 10 possesses RGB three primary colors Collocation ability, can combine according to the demand of Show Color, makes user to select multiple color.
Please refer to Fig. 2, in the present embodiment, inductor 20 two dimension is adjacent is arranged in the capable N row of M, and the input area of corresponding described tablet 30, when writing pencil 10 presses the input area of described tablet 30, pressing place is defined as primary importance, the inductor 20 that now described primary importance is corresponding receives described wireless signal and described wireless signal is converted to control signal, when writing pencil 10 presses other positions of the input area of described tablet 30, inductor 20 corresponding to other positions receives described wireless signal and described wireless signal is converted to control signal.Wherein, primary importance is the person's handwriting that writing pencil 10 performs once hand-written operation, such as a point, straight line, a curve, the parallel lines of colleague and their continuous combination.
In the present embodiment, display device 40 is LED, the color voltage signal that display device 40 exports according to mixing color device 13, seven kinds of colors can be shown, be respectively: redness when RGB three color selecting buttons are pressed respectively, green and blue, white when RGB three color selecting buttons are concurrently depressed, yellow when only red green two color selecting buttons are concurrently depressed, magenta when only red blue two color selecting buttons are concurrently depressed, cyan when only bluish-green two color selecting buttons are concurrently depressed.
Wherein, the display pixel of the second place corresponding LED viewing area correspondence position, the pixel that LED is used for controlling according to described control signal and described primary importance described viewing area correspondence position occurs electrically to change, and the switch of such as LED is with the person's handwriting making the described second place show described hand-written operation.In other embodiments of the present embodiment, display device 40 also can be LCD.
Please refer to Fig. 3, in the present embodiment, described micro controller 12 comprises two digital to analog converters and sending module 122, described digital to analog converter is used for respectively described pressure data and color data being converted to pen pressure voltage digital signal and color voltage digital signal be sent to described sending module 122, and described sending module 122 is for being converted to wireless signal by described pen pressure voltage digital signal and described color voltage digital signal.
Please refer to Fig. 4, in another embodiment of the invention, described micro controller 12 also comprises two comparers 123 and two internal storage locations 124.Wherein, before pressure data and color data are converted to pen pressure voltage digital signal and color voltage digital signal by described digital to analog converter 121 respectively, described pressure data and color data is stored once respectively in two comparers 123, after described pressure data and color data are converted to pen pressure voltage digital signal and color voltage digital signal by described digital to analog converter 121 respectively, internal storage location 124 stores described pen pressure voltage digital signal and color voltage digital signal respectively, after described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal by micro controller 12, if described comparer 123 all interrupts, then renew the described pressure data of storage and color data at described two comparer 123 relayings, thus make described two comparers 123 be respectively used to interrupt pressure data described in Coutinuous store and color data by producing thus produce described pressure data and color data continuously to complete the continuous acquisition of writing pencil 10 primary importance person's handwriting.
Please refer to Fig. 5, display device 40 in the present embodiment comprises control device 41 and display board 42, described display board 42 is provided with described viewing area, described control device 41 is for being converted to display by described control signal and primary importance, described display board 42 according to described display to show described hand-written information in the second place of described viewing area, wherein, described control signal comprises pen pressure sizes values and input color value, described display comprises second place coordinate, handwriting thickness value and Show Color value, pen pressure sizes values derives from the pressure data obtained according to pressure transducer during hand-written information 11, input color value derives from the color data that mixing color device 13 exports, according to pen pressure sizes values, display is converted to corresponding handwriting thickness value thus is shown as the handwriting thickness of hand-written information, according to input color value, display is converted to Show Color value thus is shown as the Show Color of hand-written information.
In the present embodiment, control device 41 is specially CPU(Central ProcessingUnit, central processing unit), also can be DSP(Digital Signal Processing, digital signal processing chip) and CPU.Display board 42 is LED display.Described tablet 30 is clear glass, described tablet 30 is covered in described LED display to make described viewing area and described input area overlap, described primary importance and second place overlap, wherein, several inductors 20 described are arranged at the dead astern, viewing area of described display board 42, and described sending module 122 is arranged at described pressure transducer 11 dead astern.In other the present embodiment of the present invention, tablet 30 is shaped in the surface, viewing area of display board 42, thus make writing pencil 10 can directly at the viewing area handwritten input information of display board 42, complete the timely display of hand-written information at input position, now hand-written information is just as writing on toilet paper at pencil or pen, therefore improves the experience of user.
In the present embodiment, the described inductor 20 of predetermined number receives described wireless signal and after described wireless signal is converted to control signal, described control device 41 for resolve described control signal and in described control signal, pen pressure sizes values exceedes predetermined value time described control signal is converted to display.Inductor 20 now can be prevented to be subject to the interference of other wireless signals, thus to prevent display board 42 from showing unscripted information and reduce the display quality of hand-written information.
Please refer to Fig. 6, in the present embodiment, described display device 40 also comprises memory device 43, described memory device 43 is for storing described display, described electronic drawing board also comprises electronics rubber 50, and described electronics rubber 50 is for deleting display in described memory device 43 to remove the hand-written information of display in described display board 42.Electronics rubber 50 by sending erase signal by the data erase in memory device 43, thus makes user can modify when hand-written information.There is in electronics rubber 50 pressure sensitive device and wireless launcher, when electronics rubber 50 performs erasing move on display board 42, electronics rubber 50 senses erasing pressure and arranges transmission erase signal to storage, inductor 20 obtains electronics rubber 50 erasure location, memory device 43 deletes corresponding display to remove the hand-written information shown in display board 42 correspondence position, wherein electronics rubber 50 sends erase signal by wired modes such as data lines, also can send erase signal to wirelessly.
When electronic drawing board is in power supply state, CPU can read the data in memory device 43 always, and the LED lamp tube controlling LED screen correspondence position is luminous.When receiver module 21 receives new data, CPU is by re-treatment and the process storing data, and by the Data Update in memory device 43, then CPU performs reading, process again and controls the process of display, until power-off.
The hand-written information of the input before once shutting down on showing can be selected when electronic drawing board reopens, also can select to restart new handwriting input.In the present embodiment, memory device 43 is portable hard drive.In other embodiments of the invention, memory device 43 also can be other memory device 43, such as flash memory (Flash Eeeprom Memory).
In the present embodiment, described sending module 122 is infrared transmitter, described inductor 20 is infrared inductor 20, described wireless signal and erase signal are as infrared electric wave, micro controller 12 produces and modulates infrared waveform, pen pressure voltage digital signal and color voltage digital signal are loaded on infrared waves to be launched, and infrared inductor 20 can be responded to and the infrared electric wave in reception environment, and mates the infrared electric wave received.In order to realize infrared communication, a set of perfect IrDA protocol need be defined, so that the coding of signal data, transmission and decoding.In order to ensure the safety of infrared communication, prevent the infrared transmitter of other type from disturbing signal, the infrared electric wave of input is loaded on a high-frequency carrier frequency.In order to realize the pairing of infrared communication, the fixing address code being different from other infrared transmitter is loaded in infrared coding and decoding waveform, such as, the pen be carried in the present embodiment on infrared waves presses the coding rule of voltage digital signal and color voltage digital signal numeric data code as follows:
Protocol header | address code | pressure data code | RGB data code |
Wherein RGB data code is divided into again: red color components numeric data code, blue component numeric data code, green components numeric data code.
When the infrared electric wave that infrared inductor 20 receives comprises address code and the address code of the infrared electric wave sent with writing pencil 10 matches, the infrared electric wave of induction place is converted to control signal by infrared inductor 20, thus completes the display of hand-written information.
Because infrared transmitter and infrared electric wave have good directivity, the electronic drawing board in the present embodiment is shown there is meticulous image quality.In other embodiments of the invention, sending module and inductor 20 also can be that other can produce the device with good directivity, such as lower powered generating laser and laser inductor 20.
Please refer to Fig. 7, be the electronic drawing board input in one embodiment of the invention and the method flow diagram showing hand-written information, described method comprises step:
S100: input area, viewing area and several inductors 20 are set on described electronic drawing board, the two-dimentional arranged adjacent of described inductor 20 corresponding described input area;
S200: the writing pencil 10 of described electronic drawing board presses the primary importance generation pressure data of described input area;
S300: described writing pencil 10 produces color data;
S400: described pressure data and color data are converted to wireless signal by described writing pencil 10;
S500: inductor 20 corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal;
S600: the second place that electronic drawing board controls described viewing area according to described control signal and primary importance shows described hand-written information.
Specifically, pressure transducer 11, mixing color device 13 and micro controller 12 are set in writing pencil 10, input area is arranged in tablet 30, when handwritten input information, writing pencil 10 presses with the input area of tablet 30 and produces physical pressure, according to piezoelectric effect, the pressure transducer 11 of writing pencil 10 senses that physical pressure produces pressure data, and pressure data is sent to micro controller 12.
After the pressure transducer 11 of writing pencil 10 produces pressure data, mixing color device 13 in writing pencil 10 starts to produce color data, described color data is color voltage signal, in the present embodiment, a body for writing pencil 10 has RGB three color selecting buttons and selects for user, when RGB three color selecting buttons are individually pressed, mixing color device 13 exports corresponding redness, green, blue voltage signal is to micro controller 12, when RGB three color selecting buttons are by multiple or when pressing simultaneously, according to RGB three primary colors synthesising law, mixing color device 13 exports corresponding color voltage signal to micro controller 12, such as, when RGB three color selecting buttons are concurrently depressed, mixing color device 13 exports RGB voltage signal to micro controller 12, hot green color selecting button is concurrently depressed and blue select button is not pressed time, mixing color device 13 exports red green voltage signal to micro controller 12.Owing to having mixing color device 13 in writing pencil 10, thus writing pencil 10 possesses RGB three primary colors Collocation ability, can combine according to the demand of Show Color, makes user to select multiple color.
Please also refer to Fig. 2, in the present embodiment, inductor 20 two dimension is adjacent is arranged in the capable N row of M, and the input area of corresponding described tablet 30, when writing pencil 10 presses the input area of described tablet 30, pressing place is defined as primary importance, the inductor 20 that now described primary importance is corresponding receives described wireless signal and described wireless signal is converted to control signal, when writing pencil 10 presses other positions of the input area of described tablet 30, inductor 20 corresponding to other positions receives described wireless signal and described wireless signal is converted to control signal.Wherein, primary importance is the person's handwriting that writing pencil 10 performs once hand-written operation, such as a point, straight line, a curve, the parallel lines of colleague and their continuous combination.
In the present embodiment, by arranging LED, the display screen of described LED forms described viewing area, the color voltage signal that LED exports according to mixing color device 13, seven kinds of colors can be shown, be respectively: redness when RGB three color selecting buttons are pressed respectively, green and blue, white when RGB three color selecting buttons are concurrently depressed, yellow when only red green two color selecting buttons are concurrently depressed, magenta when only red blue two color selecting buttons are concurrently depressed, cyan when only bluish-green two color selecting buttons are concurrently depressed.
Wherein, the display pixel of the second place corresponding LED viewing area correspondence position, the pixel that LED is used for controlling according to described control signal and described primary importance described viewing area correspondence position occurs electrically to change, and the switch of such as LED is with the person's handwriting making the described second place show described hand-written operation.In other embodiments of the present embodiment, viewing area also can be the display screen of LCD.
Please refer to Fig. 8, in the present embodiment, described pressure data and color data are converted to wireless signal and specifically comprise step by described writing pencil 10:
S420: respectively described pressure data and color data are converted to pen pressure voltage digital signal and color voltage digital signal;
S440: described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal.
Please refer to Fig. 9, in another embodiment of the invention, in step S420: before respectively described pressure data and color data being converted to pen pressure voltage digital signal and color voltage digital signal, also comprise step:
S410: store once described pressure data and color data respectively in two comparers 123;
In step S420: also comprise step after respectively described pressure data and color data being converted to pen pressure voltage digital signal and color voltage digital signal:
S430: store described pen pressure voltage digital signal and color voltage digital signal; And in step S440: also comprise after described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal:
S450: judge whether comparer 123 all interrupts, if described comparer 123 all interrupts, then gets back to step S410 and renews the described pressure data of storage and color data at described two comparer 123 relayings, otherwise terminate.
Wherein, before respectively pressure data and color data being converted to pen pressure voltage digital signal and color voltage digital signal by digital to analog converter 121, by storing once described pressure data and color data respectively in two comparers 123, after described pressure data and color data are converted to pen pressure voltage digital signal and color voltage digital signal by described digital to analog converter 121 respectively, internal storage location 124 stores described pen pressure voltage digital signal and color voltage digital signal respectively, after described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal by micro controller 12, if described comparer 123 all interrupts, then renew the described pressure data of storage and color data at described two comparer 123 relayings, thus make described two comparers 123 be respectively used to interrupt pressure data described in Coutinuous store and color data by producing thus produce described pressure data and color data continuously to complete the continuous acquisition of writing pencil 10 primary importance person's handwriting.
Please refer to Figure 10, step S600: described electronic drawing board shows described hand-written information according to the second place that described control signal and primary importance control described viewing area and specifically comprises:
S610: described control signal and primary importance are converted to display;
S630: according to described display to show described hand-written information in the second place of described viewing area, wherein, described control signal comprises pen pressure sizes values and input color value, described display comprises second place coordinate, handwriting thickness value and Show Color value, pen pressure sizes values derives from the pressure data obtained according to pressure transducer during hand-written information 11, input color value derives from the color data that mixing color device 13 exports, according to pen pressure sizes values, display is converted to corresponding handwriting thickness value thus is shown as the handwriting thickness of hand-written information, according to input color value, display is converted to Show Color value thus is shown as the Show Color of hand-written information.
In the present embodiment, described viewing area and described input area overlap, described primary importance and second place overlap, several inductors 20 described are arranged at rear, described viewing area.Wherein, described tablet 30 is clear glass, described tablet 30 is covered in described LED display to make described viewing area and described input area overlap, described primary importance and second place overlap, wherein, several inductors 20 described are arranged at the dead astern, viewing area of described display board 42, and described sending module 122 is arranged at described pressure transducer 11 dead astern.In other the present embodiment of the present invention, tablet 30 is shaped in the surface, viewing area of display board 42, thus make writing pencil 10 can directly at the viewing area handwritten input information of display board 42, complete the timely display of hand-written information at input position, now hand-written information is just as writing on toilet paper at pencil or pen, therefore improves the experience of user.
Please refer to Figure 11, in the present embodiment, step S500: inductor 20 corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal and specifically comprise step:
S510: judge whether that the described inductor 20 of predetermined number receives described wireless signal;
S520: be, is converted to control signal by described wireless signal, otherwise terminates; And simultaneously step S610: describedly described control signal and primary importance be converted to display specifically comprise step:
S611: judge in described control signal, whether pen pressure sizes values exceedes predetermined value;
S612: when pen pressure sizes values exceedes predetermined value in described control signal, described control signal is converted to display.
In the present embodiment, the described inductor 20 of predetermined number receives described wireless signal and after described wireless signal is converted to control signal, described control device 41 for resolve described control signal and in described control signal, pen pressure sizes values exceedes predetermined value time described control signal is converted to display.Inductor 20 now can be prevented to be subject to the interference of other wireless signals, thus to make display board 42 show unscripted information and reduce the display quality of hand-written information.
Please refer to Figure 12, in step S610: after described control signal and primary importance are converted to display, also comprise step:
S620: store described display; And in step S630: describedly after showing described hand-written information in the second place of described viewing area, also comprise step according to described display:
S640: judge whether to receive erase signal, does not receive described erase signal and then gets back to step S630: continue the described hand-written information of display according to described display with the second place in described viewing area; Receive described erase signal and then enter step S650;
S650: delete display in described memory device 43 to remove the hand-written information shown in described viewing area.
Wherein, display in described memory device 43 is deleted to remove the hand-written information of display in described display board 42 for storing described display and electronics rubber 50 by arranging memory device 43, electronics rubber 50 by sending erase signal by the data erase in memory device 43, thus makes user can modify when hand-written information.There is in electronics rubber 50 pressure sensitive device and wireless launcher, when electronics rubber 50 performs erasing move on display board 42, electronics rubber 50 senses erasing pressure and arranges transmission erase signal to storage, inductor 20 obtains electronics rubber 50 erasure location, memory device 43 deletes corresponding display to remove the hand-written information shown in display board 42 correspondence position, wherein electronics rubber 50 sends erase signal by wired modes such as data lines, also can send erase signal to wirelessly.
The hand-written information of the input before once shutting down on showing can be selected when electronic drawing board reopens, also can select to restart new handwriting input.In the present embodiment, memory device 43 is portable hard drive.In other embodiments of the invention, memory device 43 also can be other memory device 43, such as flash memory (Flash Eeeprom Memory).
In the present embodiment, described sending module 122 is infrared transmitter, described inductor 20 is infrared inductor 20, described wireless signal and erase signal are as infrared electric wave, micro controller 12 produces and modulates infrared waveform, pen pressure voltage digital signal and color voltage digital signal are loaded on infrared waves to be launched, and infrared inductor 20 can be responded to and the infrared electric wave in reception environment, and mates the infrared electric wave received.In order to realize infrared communication, a set of perfect IrDA protocol need be defined, so that the coding of signal data, transmission and decoding.In order to ensure the safety of infrared communication, prevent the infrared transmitter of other type from disturbing signal, the infrared electric wave of input is loaded on a high-frequency carrier frequency.In order to realize the pairing of infrared communication, the fixing address code being different from other infrared transmitter is loaded in infrared coding and decoding waveform, such as, the pen be carried in the present embodiment on infrared waves presses the coding rule of voltage digital signal and color voltage digital signal numeric data code as follows:
Protocol header | address code | pressure data code | RGB data code |
Wherein RGB data code is divided into again: red color components numeric data code, blue component numeric data code, green components numeric data code.
When the infrared electric wave that infrared inductor 20 receives comprises address code and the address code of the infrared electric wave sent with writing pencil 10 matches, the infrared electric wave of induction place is converted to control signal by infrared inductor 20, thus completes the display of hand-written information.
Because infrared transmitter and infrared electric wave have good directivity, the electronic drawing board in the present embodiment is shown there is meticulous image quality.In other embodiments of the invention, sending module and inductor 20 also can be that other can produce the device with good directivity, such as lower powered generating laser and laser inductor 20.
Electronic drawing board of the present invention and electronic handwriting pen 10, pen pressure information when responding to handwritten input information by the pressure transducer 11 of writing pencil 10 end system, RGB tuner exports the colouring information that user selects, be sent to LED display system through micro controller 12, and show handwritten input information by after LED display system process pen pressure information and colouring information, do not need to be connected with computing machine by data line, small product size is little, be easy to carry, and possess color selecting function, can multiple color be shown.
In embodiment of the present invention electronic drawing board, the method of writing pencil 10 and electronic drawing board input and display hand-written information, pressure data is produced to input described hand-written information by press pressure sensor 11, mixing color device 13 produces color data, described pressure data and color data are converted to wireless signal by micro controller 12, the inductor 20 of correspondence position receives described wireless signal and described wireless signal is converted to control signal, display device 40 is for hand-written information according to the position display of described control signal and inductor 20, do not need to be connected with computing machine by data line, small product size is little, be easy to carry, and possess color selecting function, multiple color can be shown.
Those skilled in the art will be appreciated that; above embodiment is only used to the present invention is described; and be not used as limitation of the invention; as long as within spirit of the present invention, the suitable change do above embodiment and change all drop within the scope of protection of present invention.
Claims (22)
1. an electronic drawing board, for display and entering handwritten information, it is characterized in that, described electronic drawing board comprises:
Tablet, described tablet is provided with input area;
Writing pencil, described writing pencil comprises pressure inductor, mixing color device and micro controller, when described writing pencil presses the primary importance of the input area of described tablet, described pressure inductor for generation of pressure data to input described hand-written information, described mixing color device is for generation of color data, and described micro controller is used for described pressure data and described color data to be converted to wireless signal;
Several inductors, described inductor two dimension arranged adjacent the input area of corresponding described tablet, when described writing pencil presses the described primary importance of the input area of described tablet, inductor corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal; And
Display device, described display device is provided with viewing area, and the second place that described display device is used for controlling according to described control signal and described primary importance described viewing area shows described hand-written information.
2. electronic drawing board as claimed in claim 1, it is characterized in that, described micro controller comprises two digital to analog converters and sending module, described digital to analog converter is used for respectively described pressure data and described color data being converted to pen pressure voltage digital signal and color voltage digital signal, and described sending module is used for described pen pressure voltage digital signal and described color voltage digital signal to be converted to wireless signal.
3. electronic drawing board as claimed in claim 2, it is characterized in that, described micro controller also comprises two comparers and two internal storage locations, described two comparers are respectively used to by pressure data described in generation interruption Coutinuous store and described color data thus produce described pressure data and described color data continuously, and described internal storage location is used for storing described pen respectively and presses voltage digital signal and described color voltage digital signal.
4. the electronic drawing board as described in claim 1 or 2 or 3, it is characterized in that, described display device comprises control device and display board, described display board is provided with described viewing area, described control device is used for described control signal and described primary importance to be converted to display, described display board shows described hand-written information according to described display with the described second place in described viewing area, wherein, described control signal comprises pen pressure sizes values and input color value, and described display comprises second place coordinate, handwriting thickness value and Show Color value.
5. electronic drawing board as claimed in claim 4, it is characterized in that, described tablet is clear glass, described tablet is covered on described display board, described viewing area and described input area overlap, described primary importance and described second place overlap, several inductors described are arranged at the dead astern, viewing area of described display board, and described sending module is arranged at described pressure inductor dead astern.
6. electronic drawing board as claimed in claim 5, it is characterized in that, the described inductor of predetermined number receives described wireless signal and after described wireless signal is converted to described control signal, described control device is for resolving described control signal and when the pressure of pen described in described control signal sizes values exceedes predetermined value, described control signal being converted to described display.
7. electronic drawing board as claimed in claim 6, it is characterized in that, described display device also comprises memory device, described memory device is for storing described display, described electronic drawing board also comprises electronics rubber, and described electronics rubber is used for deleting display in described memory device to remove the hand-written information shown in described display board by sending erase signal.
8. electronic drawing board as claimed in claim 7, it is characterized in that, described sending module is infrared transmitter, and described inductor is infrared inductor, and described wireless signal is infrared signal.
9. electronic drawing board as claimed in claim 8, it is characterized in that, described display board is LED or LCD, and the display screen of described LED or LCD forms described viewing area.
10. a writing pencil, for entering handwritten information on the tablet of electronic drawing board to show on the display device of electronic drawing board, it is characterized in that, described writing pencil comprises pressure inductor, mixing color device and micro controller, when described writing pencil presses described tablet, described pressure inductor for generation of pressure data to input described hand-written information, described mixing color device is for generation of color data, described micro controller is used for that described pressure data and described color data are converted to wireless signal and receives described wireless signal to make the inductor of electronic drawing board tablet pressing place, thus show described hand-written information according to the display device of described wireless signal control electronic drawing board.
11. writing pencils as claimed in claim 10, it is characterized in that, described micro controller comprises two digital to analog converters and sending module, described digital to analog converter is used for respectively described pressure data and described color data being converted to pen pressure voltage digital signal and color voltage digital signal, and described sending module is used for described pen pressure voltage digital signal and described color voltage digital signal to be converted to wireless signal.
12. writing pencils as claimed in claim 11, it is characterized in that, described micro controller also comprises two comparers and two internal storage locations, described comparer is used for interrupting described pen respectively and presses voltage digital signal and described color voltage digital signal to be sent to described sending module, and described internal storage location is for storing described pen pressure voltage digital signal and described color voltage digital signal.
13. writing pencils as claimed in claim 12, it is characterized in that, described sending module is infrared transmitter, and described sending module is arranged at described pressure inductor dead astern, and described wireless signal is infrared signal.
The method of 14. 1 kinds of electronic drawing board inputs and display hand-written information, described electronic drawing board is provided with writing pencil, it is characterized in that, described method comprises:
Described electronic drawing board arranges input area, viewing area and several inductors, described inductor two dimension arranged adjacent corresponding described input area;
The primary importance that described writing pencil presses described input area produces pressure data;
Described writing pencil produces color data;
Described pressure data and described color data are converted to wireless signal by described writing pencil;
Inductor corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal; And
The second place that described electronic drawing board controls described viewing area according to described control signal and described primary importance shows described hand-written information.
The method of 15. electronic drawing board inputs as claimed in claim 14 and display hand-written information, it is characterized in that, described pressure data and color data are converted to wireless signal and specifically comprise by described writing pencil:
Respectively described pressure data and described color data are converted to pen pressure voltage digital signal and color voltage digital signal; And
Described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal.
The method of 16. electronic drawing board inputs as claimed in claim 15 and display hand-written information, is characterized in that, described described pressure data and color data being converted to respectively before pen presses voltage digital signal and color voltage digital signal also comprises:
Described pressure data and described color data is stored once respectively in two comparers;
Described described pressure data and described color data being converted to respectively after pen presses voltage digital signal and color voltage digital signal also comprises:
Store described pen pressure voltage digital signal and described color voltage digital signal; And
Also comprise after described pen pressure voltage digital signal and described color voltage digital signal are converted to wireless signal:
Judge whether described comparer all interrupts, if described comparer all interrupts, then renew the described pressure data of storage and described color data at described two comparer relayings.
17. as described in claims 14 or 15 or 16 electronic drawing board input and display hand-written information method, it is characterized in that, described electronic drawing board shows described hand-written information according to the second place that described control signal and primary importance control described viewing area and specifically comprises:
Described control signal and described primary importance are converted to display; And
Described hand-written information is shown with the described second place in described viewing area according to described display, wherein, described control signal comprises pen pressure sizes values and input color value, and described display comprises second place coordinate, handwriting thickness value and Show Color value.
The method of 18. electronic drawing board inputs as claimed in claim 17 and display hand-written information, it is characterized in that, described viewing area and described input area overlap, described primary importance and described second place overlap, several inductors described are arranged at rear, described viewing area.
The method of 19. electronic drawing boards as claimed in claim 18 inputs and display hand-written information, is characterized in that, inductor corresponding to described primary importance receives described wireless signal and described wireless signal is converted to control signal and specifically comprise:
Judge whether that the described inductor of predetermined number receives described wireless signal;
That described wireless signal is converted to control signal; And
Describedly described control signal and described primary importance be converted to display specifically comprise:
Judge in described control signal, whether pen pressure sizes values exceedes predetermined value;
When the pressure of pen described in described control signal sizes values exceedes predetermined value, described control signal is converted to display.
The method of 20. electronic drawing boards as claimed in claim 19 inputs and display hand-written information, is characterized in that, described described control signal and described primary importance are converted to display after also comprise:
Store described display; And
Describedly also to comprise after showing described hand-written information in the described second place of described viewing area according to described display:
Judge whether that reception receives erase signal, if receive described erase signal, delete display in described memory device to remove the hand-written information shown in described viewing area.
The method of 21. electronic drawing board inputs as claimed in claim 20 and display hand-written information, it is characterized in that, described inductor is infrared inductor, and described wireless signal is infrared signal.
The method of 22. electronic drawing board inputs as claimed in claim 21 and display hand-written information, it is characterized in that, described viewing area is the display screen of LED or LCD.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410028204.6A CN104793776A (en) | 2014-01-22 | 2014-01-22 | Electronic drawing board, handwriting pen and method for inputting and displaying handwriting information through electronic drawing board |
| TW103111131A TWI507931B (en) | 2014-01-22 | 2014-03-25 | Electronic board system ,electronic pen and method of the electronic board displaying the handwriting information input by the electronic pen |
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| CN201410028204.6A CN104793776A (en) | 2014-01-22 | 2014-01-22 | Electronic drawing board, handwriting pen and method for inputting and displaying handwriting information through electronic drawing board |
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| TW201535167A (en) | 2015-09-16 |
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