CN1556498A - Non identification type hand wrighting input method and its device - Google Patents
Non identification type hand wrighting input method and its device Download PDFInfo
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- CN1556498A CN1556498A CNA2004100156410A CN200410015641A CN1556498A CN 1556498 A CN1556498 A CN 1556498A CN A2004100156410 A CNA2004100156410 A CN A2004100156410A CN 200410015641 A CN200410015641 A CN 200410015641A CN 1556498 A CN1556498 A CN 1556498A
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Abstract
The invention relates to a non-identification write inputting method, and its character: a CPU reads the writing track of an input pen on a touch screen, processing and forming a pixel matrix to display the writing track on a display device and convert the writing track to a data file to store it in a storage device. It also provides an information processing device implementing this method. It can display original input handwriting in appositional, homomorphous and simultaneous modes, thus increasing inputting speed, suitable to record large numbers of characters or figures, humanizing the recording mode and recorded contents all the more and implementing the functions of an electronic note.
Description
Technical field
The present invention relates to the input method of electronic product, particularly a kind of non-recognition type hand-written inputting method the invention still further relates to the signal conditioning package with this handwriting input mode.
Background technology
At present, the user particularly notebook of users' uses such as teacher, student, supvr is a papery, usually need a plurality of notebooks, with book of final entry different content, make troubles not easy-to-search, change yet utilize these papery notebooks to write down to the management of recorded content, sometimes also need to put in order again, waste time and energy, and this recording mode also brings the inconvenience of carrying to the user, made the carrier have to carry a plurality of different notebooks.This in addition traditional notebook manufacturing industry will consume starting material such as a large amount of timber, the energy every year.
Based on the problems referred to above, people more and more tend to utilize electronic installation to come recorded information, yet existing available input pen is the electronic installation of recorded information on touch-screen directly, such as signal conditioning packages such as various e-commerces, electronic notebook even notebook computers, it during recorded information, all based on recognition principle, needs to import with a kind of set input method on touch-screen, the literal imported compared with preservation information in the device discerned, then with its demonstration.This input technology speed is lower, and input speed far can not adapt to the rate request of people's handwriting input, is unsuitable for the record of a large amount of literal or figure; When user's written handwriting was more hasty and more careless, its recognition effect was poor; And former person's handwriting can't be preserved when writing, thereby can not adapt to people's personalized requirement, such as record special token or figure etc., thereby existing various signal conditioning package do not have real notebook function, can't satisfy the demand that people write down various information quickly and easily.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of non-recognition type hand-written inputting method and device thereof are provided, can show and be kept at the former input person's handwriting of touch screen hand-writing input, improved input speed, be suitable for the record of a large amount of literal or figure, and recording mode and content are humanized, to realize the function of electronic memo.
For achieving the above object, the invention provides a kind of non-recognition type hand-written inputting method, be characterized in that central processing unit reads the track that input pen is write on touch-screen, will its data processing form behind picture element matrix that output shows this handwriting trace on display device, and this handwriting trace is converted to data file is stored in the memory storage.
Described non-recognition type hand-written inputting method comprises the following steps:
1.. central processing unit reads selected input pen type of input and ruling type;
2.. central processing unit reads the track that input pen is write on touch-screen, and to generating a corresponding pixel at each X, the Y coordinate figure of XY coordinate system by track, with this pixel one by one assignment give a two-dimensional matrix and array this X, Y coordinate figure relevant position, by this two-dimensional matrix storage, form picture element matrix;
3.. display device output shows the handwriting trace that reads and be converted to the input pen of pixel through central processing unit;
4.. judge whether the input of this page of touch-screen finishes, if do not finish then to return step 1 as yet; If this page input finishes, then the array data with the picture element matrix of the handwriting trace of input pen is converted into data file;
5.. begin one page down, and formed data file is saved in the memory storage;
6.. judge whether to withdraw from input state, if then finish touch-screen and accept fresh information; If not, then return step 1.
The above-mentioned steps 2 of described non-recognition type hand-written inputting method comprises the following steps:
1.. touch-screen reads the track that input pen is write thereon, and is translated into two simulation continuous signals to the X coordinate and the Y coordinate of should touch-screen set XY coordinate system;
2.. input interface circuit is corresponding digital quantity signal with the mould/number conversion of described simulation continuous signal, and according to the sampling period the digital quantity value of the coordinate position correspondence of the handwriting trace of this input pen, this digital quantity value collects in the central processing unit;
3.. central processing unit is converted into decimal system coordinate figure with the digital quantity value that reads, and forms X, Y coordinate figure, and this X, Y coordinate figure round according to the input display resolution of display screen;
4.. central processing unit generates a corresponding pixel to each X, Y coordinate figure that should track, and this pixel assignment is given a two-dimensional matrix and array X, Y coordinate figure relevant position, by this two-dimensional matrix storage, forms picture element matrix.
The input display resolution of the big or small corresponding display device display screen of described two-dimensional matrix, the definition coordinate figure of the corresponding display device display screen of its array dimension coordinate.
Described non-recognition type hand-written inputting method also comprises the editing operation treatment step: after the handwriting trace output demonstration of display device with input pen, central processing unit judges whether to revise the operation information of the handwriting trace of input pen on the touch-screen, if have, central processing unit reads the modifier area coordinate range that input pen is desired to make an amendment on touch-screen, and deletion modifier area coordinate pixel, write fresh content by input pen at touch-screen, return step 1 then; If do not have, then enter step 4, judge whether the input of this page of touch-screen finishes.
The type of described input pen comprises color type and thickness type, and described pixel is the color type of input pen, and its assignment may be defined as:
| Numbering | Assignment | Color |
| ??1 | ??000 | White |
| ??2 | ??001 | Black |
| ??3 | ??010 | Blue |
| ??4 | ??011 | Red |
| ??5 | ??100 | Green |
| ??6 | ??101 | Purple |
| ??7 | ??110 | Yellow |
| ??8 | ??111 | Orange |
Input pen equal assignment of whole pixels of each page track on touch-screen is given this two-dimensional matrix, and the default value of the array of this two-dimensional matrix is 0.
A kind of signal conditioning package of using above-mentioned non-recognition type hand-written inputting method is characterized in comprising:
Be used for that input pen is write and the handwriting trace of input pen be converted into the touch-screens of two simulation continuous signals;
Be used for the simulation continuous signal that touch-screen transmits is carried out the input interface circuit that mould/number conversion forms the digital quantity signal of corresponding handwriting trace;
The control display device showed this handwriting trace after the digital quantity value data processing that is used for handwriting trace that sampling is obtained formed picture element matrix, and this handwriting trace was converted into the central processing unit of data file storage and management;
Be used to export the display device of the handwriting trace that shows input pen;
Be used for display driver circuit by central processing unit controlling and driving display device output demonstration;
Memory storage comprises the synchronous DRAM that is used as this signal conditioning package internal memory and is used for the flash memory of storage operating system, application software and each data file.
The X coordinate and the Y coordinate of the XY coordinate system that described two corresponding described touch-screens of simulation continuous signal are set; Described central processing unit is used for the digital quantity value of handwriting trace is converted into decimal system coordinate figure, form X, Y coordinate figure, and each X, Y coordinate figure that should track generated a corresponding pixel, this pixel assignment is given a two-dimensional matrix and array X, Y coordinate figure relevant position, by this two-dimensional matrix storage, form picture element matrix; The input display resolution of the big or small corresponding display device display screen of described two-dimensional matrix, the definition coordinate figure of the corresponding display screen of its array dimension coordinate.
Described central processing unit also is used for the handwriting trace that the input pen after data processing is handled in editing operation.
Described signal conditioning package also is provided with action button and usb circuit, and wherein action button, comprises shift knob, page-turning button, ACK button and wipes button to central processing unit input operation information through input interface circuit; Usb circuit connects this signal conditioning package and extraneous computing machine or storer.
The present invention can be read in input pen content written on touch-screen rapidly, this content coordination, similar shape, while is shown on display device, and can revise all input contents of editor when writing.When end of record (EOR), can conveniently manage directly with importing the content coordination, depositing memory storage in similar shape.Thus the present invention can coordination, similar shape, side by side be presented at the former input person's handwriting of touch screen hand-writing input and with its preservation, improved input speed, be suitable for the record of a large amount of literal or figure, and recording mode and content are humanized, also be convenient to management, realize the function of electronic memo recorded information.
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is the hardware principle block diagram of signal conditioning package of the present invention.
Fig. 2 is the process flow diagram of non-recognition type hand-written inputting method of the present invention.
Fig. 3 is the fundamental diagram of signal conditioning package of the present invention.
Fig. 4 is the external structure synoptic diagram of signal conditioning package embodiment electronic memo of the present invention.
Embodiment
As shown in Figure 1, adopt the signal conditioning package 1 of non-recognition type hand-written inputting method of the present invention to comprise touch-screen 2, input interface circuit 3, central processing unit (CPU) 4, display driver circuit 5, display device 6 and memory storage, wherein memory storage comprises a synchronous dynamic RAM (SDRAM) 7 and a flash memory 8.This signal conditioning package 1 also be provided with usb circuit 9 with extraneous computing machine or storer communication.
Wherein touch-screen 2 can adopt various forms of touch-screens such as four lines resistance formula or surface acoustic wave type, be used for the track that input pen is write on touch-screen 2 is converted into two simulation continuous signals, as the resistance signal of four lines resistances formula touch-screen, to should touch-screen the X coordinate and the Y coordinate of 2 set XY coordinate systems; And should simulate continuous signal and be sent to input interface circuit 3.
The simulation continuous signal that input interface circuit 3 transmits touch-screen 2 is carried out mould/number (A/D) conversion and is formed corresponding digital quantity signal, and the digital quantity value of the coordinate position correspondence of the handwriting trace of this input pen is collected in the central processing unit 4 as coordinate information according to the sampling period of setting, this sampling period requires less than 10ms.This input interface circuit 3 also is sent to central processing unit 4 with action button set on the signal conditioning package 1 such as shift knob, page-turning button, ACK button, the operation information of wiping button etc. and realizes corresponding operation control.
Central processing unit 4 other each parts collaborative works of control.This central processing unit 4 reads the handwriting trace digital quantity value through the input pen of input interface circuit 3 moulds/number conversion and sampling, and it is further handled and is converted into data file, manage, and depositing flash memory 8 in, this process will describe in detail in the processing procedure of non-recognition type hand-written inputting method of the present invention.This central processing unit 4 also reads the operation information of the action button that transmits through input interface circuit 3, controls corresponding parts according to this operation information and finishes this operation.
Display device 6 can adopt black and white or colour liquid crystal display device, is showing various literal, the graphical information of storing in input trajectory on the touch-screen 2 that central processing unit 4 reads and handles or the memory storage under the driving of display driver circuit 5.
Memory storage links to each other with central processing unit 4, and its synchronous DRAM 7 is used as the internal memory of this signal conditioning package 1, with central processing unit 4 dynamic exchange data, file; Its flash memory 8 is mainly used in storage operating system, application software and each data file.
Be illustrated in figure 2 as the processing flow chart of non-recognition type hand-written inputting method of the present invention, simultaneously with reference to shown in Figure 3, at first, after touch-screen 2 detects input pen and is in the state that is in contact with it, at step S1, central processing unit 4 reads the input pen that input pen selects and the type of ruling on touch-screen 2, the type of input pen mainly is meant the color type and the thickness type of input pen.
At step S2, read the handwriting trace of input pen then: at first touch-screen 2 reads the track that input pen is write thereon, and is translated into two simulation continuous signals, to should touch-screen the X coordinate and the Y coordinate of 2 set XY coordinate systems; Secondly input interface circuit 3 carries out mould/number conversion with this two simulations continuous signal and forms corresponding digital quantity signal, and the digital quantity value of the coordinate position correspondence of the handwriting trace of this input pen is collected in the central processing unit 4 as coordinate information according to the sampling period, central processing unit 4 reads the handwriting trace signal of input pen thus, i.e. the digital quantity value of the coordinate position correspondence of the handwriting trace of input pen.
Then at step S3, central processing unit 4 is converted into decimal system coordinate figure with this digital quantity value, forms X, Y coordinate figure, and this X, Y coordinate figure round according to resolution.
At step S4, central processing unit 4 corresponding each X, Y coordinate figure generate a respective pixel.In the present embodiment, this pixel is meant color, i.e. the color type of input pen, and its assignment definition can be with reference to as follows:
| Numbering | Assignment | Color |
| ??1 | ??000 | White |
| ??2 | ??001 | Black |
| ????3 | ????010 | Blue |
| ????4 | ????011 | Red |
| ????5 | ????100 | Green |
| ????6 | ????101 | Purple |
| ????7 | ????110 | Yellow |
| ????8 | ????111 | Orange |
Then, each X, the corresponding pixel assignment that generates of Y coordinate figure are given the X of a two-dimensional matrix, the array of Y coordinate figure relevant position, form picture element matrix at step S5.The input display resolution of big or small corresponding display device 6 display screens of this two-dimensional matrix, even the input display resolution of display screen is A * B, then the size of this two-dimensional matrix is A * B.For example, if get screen size be: 200mm * 150mm, the input display resolution is 640 * 480, then the display screen coordinate can be defined as follows: the upper left corner of display screen is defined as (0,0), last cell is defined as (640,480), this two-dimensional matrix is 640 * 480 two-dimensional matrix thus, the corresponding display screen coordinate figure of its array dimension coordinate.Input pen equal assignment of whole pixels of each page track on touch-screen 2 is given this two-dimensional matrix and is stored by this two-dimensional matrix, and the array dimension coordinate is corresponding with the displaing coordinate value.The default value of array is 0, writes ruling if be provided with, and can be 001 (black) according to selecting ruling that the corresponding point pixel value is set then.
At step S6, display device 6 shows through central processing unit 4 according to the control of central processing unit 4 output and reads and treatment conversion is the handwriting trace information of the input pen of pixel.
Then carrying out editing operation handles: at step S7, central processing unit 4 judges whether to revise the operation information of the handwriting trace of input pen on the touch-screen 2, if have, then enter step S13, central processing unit 4 reads input pen and desire the modifier area coordinate range of making an amendment on touch-screen 2; And at step S14, deletion modifier area coordinate pixel; Then at step S15, input pen returns step S1 then at touch-screen 2 input fresh contents.If do not have the operation information of revising the handwriting trace of input pen on the touch-screen 2, then enter step S8.
At step S8, judge whether these touch-screen 2 this page inputs finish, if do not finish as yet then to return step S1, continue to read in the handwriting trace of input pen; If this page input finishes, then the array data of the picture element matrix of the handwriting trace of its input pen is converted into data file at step S9.Begin one page down at step S10 then, and this data file is saved in the flash memory 8 in step S11.
Enter step S12 at last: judge whether to withdraw from input state, then return step S1 if not; Accept fresh information if then finish touch-screen 2.
Processing through above-mentioned non-recognition type hand-written inputting method, signal conditioning package 1 of the present invention can read in input pen content written on touch-screen 2 rapidly, and this content (former input person's handwriting) coordination, similar shape, while can be shown, and when writing, can revise all input contents of editor on display device 6.When having write down one page or write when finishing, can be directly with written contents coordination, similar shape deposit memory storage in, and begin the input of new one page.Simultaneously, the data file of the input pen handwriting trace preserved of this signal conditioning package 1 can carry out Classification Management easily, browse and browse.
Signal conditioning package 1 of the present invention can be electronic notebook, personal digital assistant, various e-commerce, notebook computer or other can utilize the device of input pen input information on touch-screen, also can be comparatively special-purpose electronic memo.When this signal conditioning package 1 was an electronic memo, its external structure can be as shown in Figure 4, and this electronic memo comprises main frame 10 and shows importation 20, connects with hinge or rotating shaft between the two, and carry out the signal transmission by signal cable.The central processing unit of this main frame 10 can adopt the roughly chip of 70MHZ of 32, dominant frequency, as the ARM7 family chip; Its memory storage adopts synchronous DRAM (SDRAM) and flash memory, the former is used as the internal memory of this electronic memo, latter's storage operating system such as embedded OS, application software and each data file, and convenient and other computing machine communication transfer files.Also be provided with clock, calendar viewing area 11, status indicator lamp 12, usb 13 and external power interface 14 on this main frame 10.
Show that importation 20 comprises display device and touch-screen, wherein display device is a LCD, and touch-screen is arranged on the display device, adopts resolution higher four lines resistance formula or surface acoustic wave type touch-screen.This touch-screen and display device are provided with menu operation district 21, input pen type selecting district 22, input field 23, character input field 24 and pel and select district 25.Show that importation 20 also is provided with action button 26 in the next door of touch-screen, comprise shift knob, page-turning button, ACK button, wipe button etc.The size of the input field 23 of touch-screen can adopt the size suitable with B5 paper, meet people's writing style, (require reduce display brightness influence) handled on its surface frosted slightly as far as possible, makes quite or slightly height of its surface flatness and common paper, to reach the needs of conveniently writing.
This electronic memo utilizes input pen to carry out the information typing, and this input pen also can cooperate software to finish basic mouse function (as click, affirmation etc.).This electronic memo also can design an insulating pad in addition, and pad avoids the palm contact to cause the mistake input in subordinate when writing.In addition, the power supply of this electronic memo can adopt the lithium battery and the external world that the power supply of power supply dual mode is provided.
The course of work of this electronic memo is as follows:
Turn on the power switch, notebook starts automatically.After starting end, can carry out input operation;
Before use or in the use, can select input pen type, ruling type;
When the operator write on touch-screen with input pen, the motion track of input nib was in time noted, and was converted into similar shape, coordination, the demonstration of image simultaneously.When one page input finishes, behind " affirmation " key or " following page turning key ", the input pen handwriting trace---can be adopted such as images such as GIF, JPG or BMP and preserves form---the classification preservation with document form data, conveniently manage and browse and browse;
When needs transformed the type of input pen, corresponding input pen type can be carried out the input pen thickness in the input pen type selecting district 22, color is selected as long as click;
When needs are revised, can select deletion scope and deletion by wiping button, re-enter then;
When needs are simply drawn, as long as click corresponding pel button, select straight line, circle, triangle, rectangle figures unit, require to draw according to oneself;
When in writing process, the content that need give prominence to the key points can select a look such as redness to mark;
After whole end of record (EOR)s, get final product by " shutdown " button.
The present invention can be read in input pen content written on touch-screen rapidly, this content coordination, similar shape, while is shown on display device, and can revise all input contents of editor when writing.When end of record (EOR), can conveniently manage directly with importing the content coordination, depositing memory storage in similar shape.Thus the present invention can coordination, similar shape, side by side be presented at the former input person's handwriting of touch screen hand-writing input and with its preservation, improved input speed, be suitable for the record of a large amount of literal or figure, and recording mode and content are humanized, also be convenient to management, realize the function of electronic memo recorded information.
Claims (10)
1, a kind of non-recognition type hand-written inputting method, it is characterized in that central processing unit reads the track that input pen is write on touch-screen, will its data processing form behind picture element matrix that output shows this handwriting trace on display device, and this handwriting trace is converted to data file is stored in the memory storage.
2, non-recognition type hand-written inputting method according to claim 1 is characterized in that comprising the following steps:
1.. central processing unit reads selected input pen type of input and ruling type;
2.. central processing unit reads the track that input pen is write on touch-screen, and to generating a corresponding pixel at each X, the Y coordinate figure of XY coordinate system by track, with this pixel one by one assignment give a two-dimensional matrix and array this X, Y coordinate figure relevant position, by this two-dimensional matrix storage, form picture element matrix;
3.. display device output shows the handwriting trace that reads and be converted to the input pen of pixel through central processing unit;
4.. judge whether the input of this page of touch-screen finishes, if do not finish then to return step 1 as yet; If this page input finishes, then the array data with the picture element matrix of the handwriting trace of input pen is converted into data file;
5.. begin one page down, and formed data file is saved in the memory storage;
6.. judge whether to withdraw from input state, if then finish touch-screen and accept fresh information; If not, then return step 1.
3, non-recognition type hand-written inputting method according to claim 2 is characterized in that described step 2 comprises the following steps:
1.. touch-screen reads the track that input pen is write thereon, and is translated into two simulation continuous signals to the X coordinate and the Y coordinate of should touch-screen set XY coordinate system;
2.. input interface circuit is corresponding digital quantity signal with the mould/number conversion of described simulation continuous signal, and according to the sampling period the digital quantity value of the coordinate position correspondence of the handwriting trace of this input pen, this digital quantity value collects in the central processing unit;
3.. central processing unit is converted into decimal system coordinate figure with the digital quantity value that reads, and forms X, Y coordinate figure, and this X, Y coordinate figure round according to the input display resolution of display screen;
4.. central processing unit generates a corresponding pixel to each X, Y coordinate figure that should track, and this pixel assignment is given a two-dimensional matrix and array X, Y coordinate figure relevant position, by this two-dimensional matrix storage, forms picture element matrix.
4,, it is characterized in that the input display resolution of the big or small corresponding display device display screen of described two-dimensional matrix, the definition coordinate figure of the corresponding display device display screen of its array dimension coordinate according to claim 2 or 3 described non-recognition type hand-written inputting methods.
5, according to claim 2 or 3 described non-recognition type hand-written inputting methods, it is characterized in that also comprising the editing operation treatment step: after the handwriting trace output demonstration of display device with input pen, central processing unit judges whether to revise the operation information of the handwriting trace of input pen on the touch-screen, if have, central processing unit reads the modifier area coordinate range that input pen is desired to make an amendment on touch-screen, and deletion modifier area coordinate pixel, write fresh content by input pen at touch-screen, return step 1 then; If do not have, then enter step 4, judge whether the input of this page of touch-screen finishes.
6, according to claim 2 or 3 described non-recognition type hand-written inputting methods, it is characterized in that the type of described input pen comprises color type and thickness type, described pixel is the color type of input pen, and its assignment may be defined as:
Numbering Assignment Color
??1 ??000 White
??2 ??001 Black
??3 ??010 Blue
??4 ??011 Red
??5 ??100 Green
??6 ??101 Purple
??7 ??110 Yellow
??8 ??111 Orange
Input pen equal assignment of whole pixels of each page track on touch-screen is given this two-dimensional matrix, and the default value of the array of this two-dimensional matrix is 0.
7, a kind of signal conditioning package is characterized in that comprising:
Be used for that input pen is write and the handwriting trace of input pen be converted into the touch-screens of two simulation continuous signals;
Be used for the simulation continuous signal that touch-screen transmits is carried out the input interface circuit that mould/number conversion forms the digital quantity signal of corresponding handwriting trace;
The control display device showed this handwriting trace after the digital quantity value data processing that is used for handwriting trace that sampling is obtained formed picture element matrix, and this handwriting trace was converted into the central processing unit of data file storage and management;
Be used to export the display device of the handwriting trace that shows input pen;
Be used for display driver circuit by central processing unit controlling and driving display device output demonstration;
Memory storage comprises the synchronous DRAM that is used as this signal conditioning package internal memory and is used for the flash memory of storage operating system, application software and each data file.
8, signal conditioning package according to claim 7 is characterized in that described two X coordinate and Y coordinates of simulating the set XY coordinate system of the corresponding described touch-screens of continuous signal; Described central processing unit is used for the digital quantity value of handwriting trace is converted into decimal system coordinate figure, form X, Y coordinate figure, and each X, Y coordinate figure that should track generated a corresponding pixel, this pixel assignment is given a two-dimensional matrix and array X, Y coordinate figure relevant position, by this two-dimensional matrix storage, form picture element matrix; The input display resolution of the big or small corresponding display device display screen of described two-dimensional matrix, the definition coordinate figure of the corresponding display screen of its array dimension coordinate.
9,, it is characterized in that described central processing unit also is used for the handwriting trace that the input pen after data processing is handled in editing operation according to the signal conditioning package shown in claim 7 or 8.
10, according to claim 7 or 8 described signal conditioning packages, it is characterized in that also being provided with action button and usb circuit, wherein action button, comprises shift knob, page-turning button, ACK button and wipes button to central processing unit input operation information through input interface circuit; Usb circuit connects this signal conditioning package and extraneous computing machine or storer.
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| CNA2004100156410A CN1556498A (en) | 2004-01-06 | 2004-01-06 | Non identification type hand wrighting input method and its device |
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| CNA2004100156410A CN1556498A (en) | 2004-01-06 | 2004-01-06 | Non identification type hand wrighting input method and its device |
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| CN100371872C (en) * | 2005-12-27 | 2008-02-27 | 华为技术有限公司 | Method and device for realizing reading content display |
| CN101533469A (en) * | 2009-04-27 | 2009-09-16 | 萧如宣 | Touch panel system and operating method thereof |
| CN101770343A (en) * | 2010-03-18 | 2010-07-07 | 深圳市同洲电子股份有限公司 | Hand input device capable of changing color and thickness of input trace and method thereof |
| CN1987762B (en) * | 2005-12-23 | 2011-01-12 | 深圳市朗科科技股份有限公司 | Input method and device for determining hand writing track by ultrasonic wave |
| CN102118896A (en) * | 2009-12-30 | 2011-07-06 | 乐金电子(中国)研究开发中心有限公司 | LED (light-emitting diode) light control method, device and mobile terminal based on touch screen |
| CN102436320A (en) * | 2011-07-29 | 2012-05-02 | 中兴通讯股份有限公司 | Transmission method, terminal and system for handwritten information |
| WO2012092770A1 (en) * | 2011-01-06 | 2012-07-12 | 海尔集团公司 | Touch painting processing system and method |
| CN101903859B (en) * | 2007-12-20 | 2013-12-18 | Dav公司 | Method of controlling touch-surface control device and corresponding control device |
| CN109445637A (en) * | 2018-11-07 | 2019-03-08 | 合肥禾斗技汇科技有限公司 | Handwriting processing method based on pen tip position |
| CN109992159A (en) * | 2019-03-29 | 2019-07-09 | 联想(北京)有限公司 | A kind of electronic equipment and display control method |
| CN111314628A (en) * | 2020-03-17 | 2020-06-19 | 北京文香信息技术有限公司 | Method and device for converting infrared track into video stream, electronic whiteboard and storage medium |
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| CN1987762B (en) * | 2005-12-23 | 2011-01-12 | 深圳市朗科科技股份有限公司 | Input method and device for determining hand writing track by ultrasonic wave |
| CN100371872C (en) * | 2005-12-27 | 2008-02-27 | 华为技术有限公司 | Method and device for realizing reading content display |
| CN101903859B (en) * | 2007-12-20 | 2013-12-18 | Dav公司 | Method of controlling touch-surface control device and corresponding control device |
| CN101533469A (en) * | 2009-04-27 | 2009-09-16 | 萧如宣 | Touch panel system and operating method thereof |
| CN102118896A (en) * | 2009-12-30 | 2011-07-06 | 乐金电子(中国)研究开发中心有限公司 | LED (light-emitting diode) light control method, device and mobile terminal based on touch screen |
| CN101770343A (en) * | 2010-03-18 | 2010-07-07 | 深圳市同洲电子股份有限公司 | Hand input device capable of changing color and thickness of input trace and method thereof |
| WO2012092770A1 (en) * | 2011-01-06 | 2012-07-12 | 海尔集团公司 | Touch painting processing system and method |
| CN102436320A (en) * | 2011-07-29 | 2012-05-02 | 中兴通讯股份有限公司 | Transmission method, terminal and system for handwritten information |
| CN109445637A (en) * | 2018-11-07 | 2019-03-08 | 合肥禾斗技汇科技有限公司 | Handwriting processing method based on pen tip position |
| CN109992159A (en) * | 2019-03-29 | 2019-07-09 | 联想(北京)有限公司 | A kind of electronic equipment and display control method |
| CN111314628A (en) * | 2020-03-17 | 2020-06-19 | 北京文香信息技术有限公司 | Method and device for converting infrared track into video stream, electronic whiteboard and storage medium |
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