CN1202464C - Single finger input system specific for handhold terminals - Google Patents
Single finger input system specific for handhold terminals Download PDFInfo
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- CN1202464C CN1202464C CN 03126983 CN03126983A CN1202464C CN 1202464 C CN1202464 C CN 1202464C CN 03126983 CN03126983 CN 03126983 CN 03126983 A CN03126983 A CN 03126983A CN 1202464 C CN1202464 C CN 1202464C
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Abstract
The present invention relates to a special single finger input system a hand-held terminal, which comprises a hand-held terminal, a data collector, a software recognition program, a code comparison table and a word stock, wherein the data collector is fixed on or is externally connected with the hand-held terminal and is used to collect track data or pointing data when a finger slips on the surface of the data collector; the software recognition program is used to recognize corresponding Chinese input strokes according to the collected track data or recognize corresponding pointing events according to the collected pointing data; the code comparison table is used to obtain a Chinese character code according to the recognized Chinese input strokes; the word stock is used to output corresponding Chinese characters according to the obtained Chinese character code. The data collector can be a trackball data collector or an optoelectronic data collector. The present invention provides the special single finger input system for a hand-held terminal, which just needs one finger and one a key surface to conveniently and visually input Chinese characters.
Description
[technical field]
The present invention relates to the input method of handheld terminal, relate in particular to a kind of one hand that is exclusively used in handheld terminal and refer to input method.
[background technology]
At present, the mobile phone on the market, PDA and other portable, hand held terminal unit mainly use four kinds of input methods: 1, terminal keyboard input method; 2, terminal touch-screen input method; 3, combined key input method; 4, external small-keyboard input method.Though above-mentioned various input method is perfect relatively, and respectively has one's own knack technically, and has overcome some shortcomings.But perfect not enough, still also exist and limit its bottleneck of input data fast:
1, number small-keyboard input method: this method all has the extensive application example on various mobile phones.Import by the keypad on the equipment of being integrated in.The Chinese aspect also is to utilize this number keypad, and the input back checks that Chinese character, the coding table of comparisons are converted into Chinese.As: NOKIA 7650 mobile phones, use the keypad input.There is following weak point in this keyboard entry method: handheld device can not be done very greatly, and too little then being not easy of keyboard operated.At present, a large amount of data standard keyboards that use, speed is very slow when the input English letter; When input Chinese, need the various input methods of note; Promptly use spelling input method, speed is also very slow.
2, hand-written, touch-screen input method: this mode is to be integrated with touch panel device on terminal, and the user draws on touch-screen or clicks by finger or pen and produces input.Directly handwriting input.As MOTOROLA 388 mobile phones, use the touch panel device handwriting input.There is following weak point in the touch screen hand-writing input: this mode is subjected to vibration effect bigger, almost can't import onboard; Simultaneously, this input method produces bigger wearing and tearing to touch-screen; After a period of time, screen can be scratched.Because touch-screen is the core component on this handheld device, replacement cost is very high.
3, combined key input method:, finish the input of data by function key by one or more function key is set.Please refer to number of patent application: 00107130 patented claim, its use be exactly this mode.The function key mode is imported and had following weak point: this mode can not be imported intuitively, needs the content of the function key representative on the pre-set all directions; In the Chinese character input, just can implement after must unifying to announce a kind of input method standard.At present, this mode is not seen Related product.
4, external small-keyboard input method: by the mobile device interface, the outside connects a keypad again and carries out the data input.The multiple mobile phone of NOKIA has been supported this mode at present.The outside can be chosen modular keypad or the one-handed performance keypad that a size is about 100*200 (mm) and is used for importing fast data.The external connection keyboard mode is imported and is had following weak point: this mode needs in addition keypad on one's body, carry inconvenience; In addition, keypad also is difficult to finish input in the bigger place of vibration.In fact, most people is not with keypad in addition when buying mobile phone.
[summary of the invention]
Purpose of the present invention is intended to overcome above-mentioned the deficiencies in the prior art, and the one hand that is exclusively used in handheld terminal that provides finger of a kind of need, key face can make things convenient for, import intuitively Chinese character refers to input method.
Realize that the above-mentioned purpose technical scheme is: a kind of one hand that is exclusively used in handheld terminal refers to input method, may further comprise the steps:
1) data acquisition by fixing or be external in the small-sized data acquisition unit of handheld terminal, is gathered the continuous path data when finger slips on its surface;
2) software identification is according to its corresponding input in Chinese stroke of the data identification of being gathered;
3) coding contrast obtains its Chinese character coding according to the input in Chinese stroke of being discerned;
4) literal output is according to its corresponding Chinese text of Chinese character coding output that obtains.
Described data acquisition unit is trace ball or photooptical data collector.
In the described software identifying, use Time-Domain algorithm judge each stroke respectively with the beginning of next word.
Described handheld terminal is various mobile phones, PDA, hand-held mobile computer etc.
Adopt technique scheme, with respect to prior art, the technical progress that the present invention gives prominence to is: 1, can accurately recover stroke: even the word of identical stroke, its length different inclination angle difference can be correctly validated, and discrimination is risen.2, operation is directly perceived, fast: the user only need simple by a finger, a key face (data acquisition unit) can make things convenient for, intuitively on the handheld terminal, particularly import Chinese character etc. on the mobile phone, do not need memory inputting, do not need the define function keys implication.3, volume is little, and is integrated easily, can be placed on existing most mobile phone to use.4, durability is good: owing to use fixed equipment collection finger to slide, equipment attrition is few, durability good, conveniently makes the standard component product.5, be not subject to vibration effect, can normally use onboard yet.6, can improve the input resolution by software upgrading.7, complete function: one hand just can be finished nearly all handheld terminal function.8, the present invention has passed through test, simulation, emulation, proves feasible really.9, software and hardware product of the present invention (demo).Can normally run under the platforms such as Windows, WinCE, Linux, VxWorks.
Below in conjunction with accompanying drawing the one hand that the present invention is exclusively used in handheld terminal is referred to that input system is described in further detail.
[description of drawings]
Fig. 1 is data acquisition flow figure.
Fig. 2 is to be example with " Lee " word, by the software recognizer it is gathered vector and is converted to the result that bitmap is represented.
Fig. 3 is the structural representation of a mobile phone and a small-sized data acquisition unit circumscribed.
Fig. 4 is integrated in structural representation on the mobile phone with a small-sized data acquisition unit.
[embodiment]
A kind of one hand that is exclusively used in handheld terminal refers to the specific implementation process of input method, referring to Fig. 1 to Fig. 4, comprising:
1) data acquisition: on handheld terminal 2, fix a data collector 1 (shown in Figure 4) or an external data collector 1.Handheld terminal can be mobile phone, PDA and other portable, portable equipment, and data acquisition unit 1 can be mini-trackball or photooptical data collector, and external can be data acquisition line or wireless connections.Mini-trackball can adopt the trace ball of existing computer mouse bottom as data acquisition unit.The photooptical data collector can adopt the photooptical data collector of existing optical mouse bottom to get final product.External data acquisition unit 1 is fixed on the finger-stall 3, and during use, finger-stall 3 is worn on the finger, gathers the continuous path data when another finger slips on its surface.
2) software identification: according to its corresponding input in Chinese stroke of the continuous path data identification of being gathered (as: point, horizontal stroke, left-falling stroke, right-falling stroke, folding, perpendicular, curved, hook etc.).During data identification, use Time-Domain algorithm judge each stroke respectively with the beginning of next word.For example: the disconnection that did not have data entry form to show stroke in 0.1 second; 0.4 do not have data entry form to show that next word begins second.(in the specific algorithm, Rule of judgment can be changed).Identification to click event is identical with the click event of existing mouse, comprising: single-click, double-click on, click drag three incidents.Single-click: by judging whether that pressing whole button judges; Double-click on: judge by judging the time that connection is pressed for twice; Click drags: press by judging whether, and finger is sliding and judges.
3) coding contrast: obtain its Chinese character coding according to the input in Chinese stroke of being discerned;
4) literal output: according to its corresponding Chinese text of Chinese character coding output that obtains.
For above-mentioned steps 2)-4), each handheld terminal all has ripe recognizer at present.For example:
The stroke input method of NOKIA, the hand-writing input method of MOTOROLA etc.The data that collect can directly be connected with these recognizers, just can finish the input of various characters.
The Realization of Simulation (pseudo-code) to image data:
Sampling rate is 500Hz when getting emulation, and promptly per second is gathered 500 point data.
Be defined as follows 9 direction vectors earlier:
A=[10]: the right side
B=[01]: down
C=[11]: the bottom right
D=[00]: motionless
E=[-11]: the lower-left
-a=[-10]: a left side
-b=[0-1]: on
-c=[-1-1]: upper left
-e=[1-1]: upper right
Be example with input Chinese " Lee " word on trace ball below, the The Realization of Simulation of its image data is described: the data acquisition that finger produces after sliding on collecting device is as follows.
Horizontal: [dddddddddaaaaadaacaaa-caaaadacaaaa-caadaacacaacaaaaaa-cd dddddddddd];
Perpendicular: [dddddddbbbbbbd-cbbdbbcbbbbbcbbdb-cbbbbbdabbbbbbba-cbbddd d];
Cast aside: [ddddddeeeeee-aeede-aeee-aeeeedeeeeeeee-aeeee-aeeeeeedddd ddddddddddd];
Press down: [ddddddddddddddddcccccccaacccacaaccccccccaaaacccccccccccc acccdddddddddddd];
Folding: [ddddddddddddddaaaaacdaaacaaaacaaaadaaaaddbbbbbeebbbbebbb eebbdebbddddddddddddddddddd];
Can see following rule by analyzing data:
1, each stroke beginning and all have a large amount of d to represent at this moment not action when finishing.
The d that 2, dispensed in small quantity is arranged in the same stroke can simply get rid of the d of these dispersions by the filter algorithm of making an uproar.
3, can judge directly what this concrete stroke is, also can convert bitmap to by algorithm by eigenwert.
For the ease of analyzing, Fig. 2 changes into bitmap format (having filtered noise before the conversion) with above data.Attention: the diagrammatic representation of vector matrix shown in above this figure is after conversion, only convenient used for expressing.During judgement, might not need to be converted to figure.
The transfer algorithm pseudo-code is described below (MATLAB description): pic (1:PictureSize)=1; % designs a pattern matrix in advance, and is set to white start=PictureMidPointfor i=1:(max (size (Buffer))/2-2)
x1＝Buffer(i*2)；
x2＝Buffer(i*2+1)；
Pic (start)=0; It is black that % is provided with current point
Start=start+x1+x2*100; % gets the position of next point.Endfigure, imshow (pic); % shows to scheme sheet mode
In like manner: can be converted to mouse action, and return current coordinate points.This principle and existing complete sample are together.
More than two kinds of acquisition modes (trace ball and photooptical data collector) very ripe on PC, only need miniaturization just passable on the specific implementation.Its most of former device all has ripe commercial chip and mould certainly can use.Cost is low.
As required, concrete frequency acquisition can be adjusted according to the frequency of terminal device oneself.The Rule of judgment of time-domain analysis also can specifically be adjusted according to sampling rate in the algorithm.Further, can discern the user error data in the software recognizer, along with cpu performance in the future hand-held terminal device improves, recognizer can be upgraded.Comprise: to the identification of running hand, to identification of write the two or more syllables of a word together etc.In (present part hand-held terminal device has been supported these algorithms) formal product, data acquisition, vector output all will use standard component to finish.The present invention can be according to the real needs customization output format of each terminal and the encapsulation of class, and it is integrated to be convenient to handheld terminal production firm.
Must be pointed out that the indefiniteness that the foregoing description is only made the present invention illustrates.But person of skill in the art will appreciate that, do not departing under aim of the present invention and the scope that can make various modifications, replacement and change to the present invention, these modifications, replacement and change still belong to protection scope of the present invention.
Claims (5)
1, a kind of one hand that is exclusively used in handheld terminal refers to input method, may further comprise the steps
1) data acquisition;
2) software identification is according to its corresponding input in Chinese stroke of the data identification of being gathered;
3) coding contrast obtains its Chinese character coding according to the input in Chinese stroke of being discerned;
4) literal output is according to its corresponding Chinese text of Chinese character coding output that obtains; It is characterized in that: described data acquisition is by fixing or be external in the small-sized data acquisition unit of handheld terminal, gathering the continuous path data when finger slips on its surface.
2, the one hand that is exclusively used in handheld terminal according to claim 1 refers to input method, and it is characterized in that: described data acquisition unit is trace ball or photooptical data collector.
3, the one hand that is exclusively used in handheld terminal according to claim 1 refers to input method, and it is characterized in that: described data acquisition unit is integrated in the handheld terminal, described external be data acquisition line or wireless connections.
4, refer to input method as the one hand that is exclusively used in handheld terminal as described in the claim 3, it is characterized in that: in the described software identifying, use Time-Domain algorithm judge each stroke respectively with the beginning of next word.
5, the one hand that is exclusively used in handheld terminal as claimed in claim 1 or 2 refers to input method, and it is characterized in that: described handheld terminal is various hand-held mobile terminal devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03126983 CN1202464C (en) | 2003-06-22 | 2003-06-22 | Single finger input system specific for handhold terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03126983 CN1202464C (en) | 2003-06-22 | 2003-06-22 | Single finger input system specific for handhold terminals |
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| CN1462932A CN1462932A (en) | 2003-12-24 |
| CN1202464C true CN1202464C (en) | 2005-05-18 |
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| CN 03126983 Expired - Fee Related CN1202464C (en) | 2003-06-22 | 2003-06-22 | Single finger input system specific for handhold terminals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101763185B (en) * | 2008-12-23 | 2014-10-01 | 财团法人交大思源基金会 | Virtual input system and method thereof |
| CN105242927B (en) * | 2015-10-09 | 2019-04-30 | 沈文策 | A method of it can slidably be clicked based on realizing to switch under complex environment |
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