CN102298445A - Universal shorthand keyboard - Google Patents
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- CN102298445A CN102298445A CN201110232563XA CN201110232563A CN102298445A CN 102298445 A CN102298445 A CN 102298445A CN 201110232563X A CN201110232563X A CN 201110232563XA CN 201110232563 A CN201110232563 A CN 201110232563A CN 102298445 A CN102298445 A CN 102298445A
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Abstract
The invention provides a universal shorthand keyboard. By improving a space key on the universal multimedia keyboard of a computer to form a left space key and a right space key and by taking letters Y, H and N, the center of the left space key and the center of the right space key on the keyboard as symmetrical center lines to symmetrically distribute and map letters, the initial consonants of Chinese syllables are distributed in a left hand operating area, the compound vowels of the Chinese syllables are distributed in a right hand operating area, a left hand and a right hand can simultaneously strike keys without crossing the hands and the goal of rapidly inputting Chinese characters can be realized.
Description
Technical field
The present invention relates to a kind of computer fittings, be specifically related to a kind of general fast recording keyboard that can under the situation that does not change input habit, improve input speed.
Background technology
In daily life, computing machine typewriting is very extensive in applications such as literal input, minutes, and the speed that the efficient that so how to improve input just improves typewriting is the direction of making joint efforts in the industry.The mode of existing multiple input in Chinese, methods such as for example five, spelling, Two bors d's oeuveres, wherein five-stroke input method need could realization speed be imported faster through long-time training and memory.
In addition, in order to improve the speed of the Chinese typing literal of input, many Chinese structures of input at a high speed of planting are arranged in the prior art, for example application number is that 94105226.5 Chinese invention patent discloses a kind of multikey concurrent beating type high-speed Chinese character input method and key board unit, as shown in Figure 8, its technical characterictic is on the left and right keyboard of 24 keys that 12 buttons and symmetry respectively arranged consonant key and final key to be set respectively, consonant, vowel key (perhaps key combination) with a hand many key click Chinese character makes its, rhythm piece together the input that can realize Chinese character mutually.Obviously, the arrangement mode of button on its keyboard has changed the keyboard of traditional computer, can only use as special quick-recording machine, can not use as common computor-keyboard.
As shown in Figure 9, application number is that 201020100527.9 Chinese utility model patent discloses a kind of computer Chinese-character fast recording keyboard, and this keyboard comprises by 18 speed record keys and several collateral keies and forming that it is the primary input key that 18 speed are recorded keys, two districts about being divided into, about each nine key.Its degree of flexibility according to finger length, strength size and motion is provided with the key position, 18 speed record keys are divided into three rows, each 7 key about last two rows, about each minutes 5 row, 5 row key unexpected misfortune spaced and parallel are arranged, Dui Ying two key interfaces are obliquely installed up and down, two keys knock simultaneously about helping, and this keyboard can be realized the record of Chinese character speed, possess the partial function of QWERTY keyboard, but its defective is the structure that has still changed conventional keyboard, can not realize the operate as normal function of common keyboard.
In addition, also have the fast recording keyboard of some specialized application at fast recording system, it utilizes principle methods such as language construction, pronunciation, arranges the position of button, but defective is exactly the compatibling problem with the conventional keyboard function.In addition, application number is that 200710087105.5 Chinese invention patent discloses a kind of virtual pair of inputting method based on computer standard keyboard, but the keyboard of two independent operations about it is divided into the common computer keyboard, be that each keyboard can both independently be imported 26 English alphabets, two parallel simultaneously inputs of dummy keyboard about permission, the all functions that keep former computing machine, it defines certain button that its this operational zone does not occur with several Macintoshs, for example W+E represents M, S+D represents L, obviously, and this mode, need very complicated memory process to realize, bring memory difficulty to the operator, the problem of operating difficulties.
, how providing on a kind of basis that does not change the common computer keyboard structure for this reason, realize the function of speed record Chinese, is the problem that the present invention need solve.
Summary of the invention
At above-mentioned defective, the purpose of this invention is to provide a kind of general fast recording keyboard, the raising efficiency of inputting that exists with the fast recording keyboard that solves prior art must change the technology prejudice of conventional keyboard structure, and the keyboard structure complexity, is not easy to the technical matters of simple operations.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of general fast recording keyboard, it is characterized in that, comprise a QWERTY keyboard, be provided with the matrix film circuit and the control chip that have the contact in the described keyboard, described QWERTY keyboard comprises left and right two space bars, on this QWERTY keyboard, with the gap between Y key, H key, N key, right w/space key and T key, G key, B key, the left space key as the virtual dividing line, with alphabetical Y, the U on described virtual dividing line right side, I, O, P, H, J, K, L, "; ", N, M key; mirror image is symmetric to T, R, E, W, Q, G, F, D, S, A, B, the V key on the keyboard in this virtual dividing line left side respectively; alphabetical Q, W, E, R, T, A, S, D, F, G, Z, X, C, V, the B key in described virtual dividing line left side, respectively mirror image be symmetric to P, O on the keyboard on this virtual dividing line right side, I, U, Y, "; ", L, k, J, H, "/", ". ", "; ", M, N key, the alphabetical virtual key of mirror image symmetry and former T, R, E, W, Q, G, F, D, S, A, B, V, C, X, Z key are formed the Chinese Pin Yin pseudonym enter key jointly, and the mirror image alphabetical virtual key of symmetry and former Y, U, I, O, P, H, J, K, L, N, M key are formed Chinese phonetic alphabet simple or compound vowel of a Chinese syllable enter key jointly.
According to the described general fast recording keyboard of preferred embodiment of the present invention, when the alphabet key of pressing virtual dividing line left side and left space key, show the corresponding letter on the former virtual dividing line right side that is mapped to this alphabet key; When not according to the bottom left space bar, show the letter of this alphabet key correspondence.
According to the described general fast recording keyboard of preferred embodiment of the present invention, when the alphabet key of pressing virtual dividing line right side and right w/space key, show the corresponding letter in the former virtual dividing line left side that is mapped to this alphabet key; When not according to the bottom right space bar, show the letter of this alphabet key correspondence.
According to the described general fast recording keyboard of preferred embodiment of the present invention, described control chip is caught each button contact condition on the keyboard, and it comprises interface that is connected with computing machine and the interface that is connected with keyboard.
According to the described general fast recording keyboard of preferred embodiment of the present invention, be respectively arranged with the contact that contacts with described left and right space bar on the described matrix film circuit.
According to the described general fast recording keyboard of preferred embodiment of the present invention, described control chip internal memory contain corresponding described general fast recording keyboard the coding rule table, in described coding rule table, search and key-press status corresponding codes information by the scan code of intercepting and capturing described general fast recording keyboard buffer zone.
Owing to adopted above technical scheme, make the present invention than prior art, have following advantage and good effect:
The invention provides a kind of general fast recording keyboard, it is under the situation that does not change original computor-keyboard letter entity allocation scheme, the distribution rule of a kind of structure of symmetric distributed fast recording keyboard and character, initial consonant, simple or compound vowel of a Chinese syllable has been proposed, its fingering clear in structure, being convenient to the user understands and remembers, under the situation that does not change the basic fingering of user custom and use habit, reaching both hands does not have intersection and operates simultaneously, fast the effect of typewriting.
And, general fast recording keyboard provided by the invention, be independent of specific Chinese phonetic alphabet double-spelling Chinese character input method, so just can be by classic double-spelling Chinese character input method the most complete up-to-date dictionary, the cell dictionary that dynamically updates, decide intelligent input functions such as word, dynamic group speech, dynamic word frequency, context frequency modulation, self-defined phrase with speech, further accelerate input in Chinese speed.
Once more, general fast recording keyboard provided by the invention can be used as universal keyboard simultaneously and uses, and uses different input method users for intersecting, and material base is provided.
Description of drawings
Fig. 1 is the structural representation of a kind of general fast recording keyboard of the present invention;
Fig. 2 is the dummy keyboard corresponding diagram of a kind of general fast recording keyboard of the present invention;
Fig. 3 is the structure connection diagram of a kind of general fast recording keyboard of the present invention;
Fig. 4 is a control chip pin schematic diagram in the specific embodiment of the present invention;
Fig. 5 is that keyboard is handled main program flow chart in the specific embodiment of the invention,
Fig. 6 A is the first user mode synoptic diagram according to inputting English letter of the present invention;
Fig. 6 B is the second user mode synoptic diagram according to inputting English letter of the present invention;
Fig. 7 A is the first user mode synoptic diagram of importing Chinese character according to the present invention;
Fig. 7 B is the second user mode synoptic diagram of importing Chinese character according to the present invention;
Fig. 7 C is the 3rd a user mode synoptic diagram of importing Chinese character according to the present invention;
Fig. 8 is that application number is that 201020100527.9 Chinese utility model patent discloses a kind of computer Chinese-character fast recording keyboard synoptic diagram;
Fig. 9 is that application number is the kind computer Chinese-character fast recording keyboard synoptic diagram that 201020100527.9 Chinese utility model patent discloses.
Embodiment
Below in conjunction with accompanying drawing several preferred embodiments of the present invention is described in detail, but the present invention is not restricted to these embodiment.The present invention contain any on marrow of the present invention and scope, make substitute, modification, equivalent method and scheme.Understand for the public is had completely the present invention, in the following preferred embodiment of the present invention, describe concrete details in detail, and do not have the description of these details also can understand the present invention fully for a person skilled in the art.In addition, for fear of essence of the present invention is caused unnecessary obscuring, do not describe well-known method, process, flow process, element and circuit etc. in detail.
Core concept of the present invention is, space bar on the computer general-purpose MultiMedia Keyboard is transformed, form left space key and right w/space key, with alphabetical YHN, left and right space bar center on the keyboard is symmetrical center line, letter is carried out symmetrical expression distribution mapping, make the initial consonant of the Chinese phonetic alphabet be distributed in the left-handed operation district, simple or compound vowel of a Chinese syllable is distributed in the right-hand operated district, the right-hand man does not have the intersection keystroke simultaneously, realizes input Chinese fast.
As shown in Figure 1, a kind of general fast recording keyboard provided by the invention, its surface structure is the same with general 107,104 MultiMedia Keyboards of standard substantially, comprise the matrix film circuit of inner band right w/space key contact etc., difference is to comprise that also a control chip (not shown) and unique difference are that space bar has been divided into two parts, left-half is called the left space key, and right half part is called the right w/space key.
The structure of the general fast recording keyboard of symmetric distributed of the present invention is, is the boundary with keyboard with YHN and center, space, two keyboard region about being divided into, left-handed operation left button panel, right-hand operated right button panel, both hands ten assignment closing operations, keystroke simultaneously.
As can be seen from Figure 1, the left button panel comprises the QWERTASDFGZXCVB letter, totally 15.The right button panel comprises the YUIOPHJKLNM letter, and totally 11, if think right-hand man's division operation, necessary each self energy operation QWERTASDFGZXCVB of right-hand man and YUIOPHJKLNM be totally 26 letters.So the YUIOPHJKLNM letter should be contained in the left button panel, the QWERTASDFGZXCVB letter should be contained in the right button panel.
The present invention adopts the symmetric distributed method, what adopt is general 107,104 MultiMedia Keyboards of standard pc, the left keyboard letter that lacks in the left keyboard, the left keyboard letter that lacks in the left keyboard, we adopt symmetrical " symmetric distributed " scheme, promptly shine upon the letter of explaining separately " disappearance " with mirror type.
With Y, H, three letter keys of N is the boundary, and the letter on the keyboard of the left and right sides is by row left and right sides Mirroring Mapping.For example, first on left keyboard row tee, R, E, W, Q Mirroring Mapping are on alphabetical Y, the U of left keyboard, I, O, P.In like manner, alphabetical Y, U on the left keyboard, I, O, P Mirroring Mapping are on the tee of left keyboard, R, E, W, Q.On the left keyboard second row alphabetical G, F, D, S, A Mirroring Mapping to alphabetical H, the J of left keyboard, K, L, "; " on; In like manner, alphabetical H, J on the left keyboard, K, L, "; " Mirroring Mapping is on alphabetical G, the F of left keyboard, D, S, A.The third line letter b on the left keyboard, V, C, X, Z Mirroring Mapping are in alphabetical N, the M of left keyboard, ", ", ". ", "/", and alphabetical N on the left keyboard, M Mirroring Mapping are on the letter b of left keyboard, V, and its virtual effect as shown in Figure 2.
Pc machine MultiMedia Keyboard itself is an intelligence system of being made by single-chip microcomputer, it is by keyboard handling procedure (utilizing the hardware under the software-driven to finish such as functions such as scanning, coding, transmission) scanography button periodically, when button is pressed, eliminating shake back scan code passes to the keyboard interface that is positioned at main frame, translator is translated as the scan code in the keyboard interface coded message of correspondent button, when CPU was idle, keyboard interface circuit sent above-mentioned coded message to main frame.Pc machine MultiMedia Keyboard sends the key position scan code to the host keyboard interface at twice, connects scan code by send next time, sends the disconnection scan code during release again, thereby finishes the transmission of a button data.The scan code of keyboard when transmitting (connect sign indicating number, disconnect sign indicating number) is temporarily stored in its impact damper, in the keyboard time clock synchronously down, the single-chip microcomputer in the keyboard with the stored scan code of buffer by the status to high-order, outwards send serial signal by signal wire successively.
Existing pc machine MultiMedia Keyboard when a plurality of keys are pressed simultaneously, have only the key of last closure periodically to be sent the connection scan code, and after this key was released, the connection sign indicating number of other keys did not periodically send yet to main frame.Press simultaneously under the situation at a plurality of buttons so, how to obtain the scan code of a plurality of keys in the keyboard buffer? when a plurality of buttons are pressed simultaneously, in fact button operation has successively, is that a plurality of keys are very of short duration interval time of pressing or lifting, and we feel and operate at the same time.We can redesign a computer keyboard handling procedure to the present invention is based on this principle, improve the connection sign indicating number of identification button and disconnect the speed of sign indicating number, and the scan code of a plurality of buttons is sent to keyboard buffer.If we intercept and capture the scan code in the buffer zone, carry out corresponding conversion by look-up table according to the encoding scheme of the general fast recording keyboard of symmetric distributed, will obtain any result that we want.
The space bar of traditional pc machine MultiMedia Keyboard is one, the general fast recording keyboard of symmetric distributed is the same with general 107,104 MultiMedia Keyboards of standard substantially, unique difference is that space bar has been divided into two parts, and left-half is called the left space key, and right half part is called the right w/space key.In the present invention, because input in Chinese will have the compounding practice of left and right space bar when very important characteristic is input in Chinese, during input lower gear initial consonant (initial consonant of symmetrical mapping), the left hand thumb will hit the left space key simultaneously, during input lower gear simple or compound vowel of a Chinese syllable (simple or compound vowel of a Chinese syllable of symmetrical mapping), hand thumb will be hit the right w/space key simultaneously, so the general fast recording keyboard of symmetric distributed must can be discerned left and right space bar.Traditional ps/2 computer media keyboard acquiescence second cover scan code, the make code of space bar is: 29, short in size is: F029.For the keyboard handling procedure that guarantees the general fast recording keyboard of symmetric distributed can be discerned left and right sides space bar, the present invention proposes a scheme, the make code of left space key is: 29, short in size is: F029, the make code of right w/space key, short in size are selected from the Windows multimedia scan code of the Ps/2 keyboard second cover scan code.
As shown in Figure 3, the present invention can adopt single-chip microcomputer as control chip, as an interface module, the general fast recording keyboard of symmetric distributed is connected with interface module by the ps/2 attachment unit interface, and interface module couples together by USB plug and pc machine host.
Shown in Fig. 4 is in the general fast recording keyboard interface microcontroller of the symmetric distributed module, the schematic diagram of input, output interface, the keyboard interface is a keyboard interface, the pc interface is the interface that outputs to the pc main frame, two interfaces all can be the ps/2 interface, and the pc interface also can be designed to USB interface.
Shown in Fig. 5 is that keyboard is handled main program flow chart.
In interface module, solidify new keyboard handling procedure, and pointed out to realize three key problems of new keyboard handling procedure and the implementation method of quick Chinese typing:
1, provides scan code (make code, the short in size) embodiment of the general fast recording keyboard of symmetric distributed left and right sides space bar, so that new keyboard handling procedure can be discerned left and right sides space bar.
2, provide multikey to import principle and method simultaneously, promptly improved the speed of the connection sign indicating number and the disconnection sign indicating number of keyboard scan procedure identification button, the interval time when the reduction multikey is pressed simultaneously between each key.Should be in the actual engineering according to the different single-chip microcomputers that adopt, carry out engineering test and make design parameter should satisfy the per minute typing to be not less than 200 Chinese character requirements.
3, provide the code conversion scheme, promptly write new interrupt routine, intercepted and captured the scan code in the buffer zone, carried out corresponding conversion according to the encoding scheme of the general fast recording keyboard of symmetric distributed, will obtain any result that we want by look-up table.
Be further to understand realization of the present invention and operation, below we carry out inputting fingering example operation English and Chinese.
Application examples one
Input " yt " operation
If want in left keyboard a certain Mirroring Mapping of operation left keyboard (otherwise or) letter, input method is switched to English state, open WORD.
As shown in Figure 6A, on the general fast recording keyboard of symmetric distributed, the left hand thumb is put on the left space, forefinger is put on the tee, hand thumb is put on the right w/space, forefinger is put on the alphabetical Y, two hands are clicked keyboard simultaneously, and that at this moment can see the left hand input on screen is y, and that the right hand is imported is t.Because program design is clicked under the situation simultaneously the right-hand man, screen display is: " yt ".If want to see a corresponding letter, please singlehanded keystroke.
Application examples two
Input " cc " operation
Shown in Fig. 6 B, owing in the Chinese phonetic alphabet, do not have ", ", ". ", "/" initial consonant, thus do not do "; " in the program design, ". ", "/" the keyboard Mirroring Mapping, therefore, the left hand middle finger is put on the C key, and hand thumb is put on the right w/space, middle finger is put into, on, the while beating keyboard, screen display is: " cc ".
Application examples three
For example, input Chinese character " soon ", " easily ", " leading to " three Chinese characters should be operated in search dog Two bors d's oeuveres scheme like this, and input method is switched to Chinese state, open WORD.
The operation of " kuai " shown in Fig. 7 A, left hand thumb are put on the left space key, middle finger is put on the alphabetical D key, and right hand forefinger is put on the Y key, and two hands while and beating keyboard can be seen on screen: fast.
Shown in Fig. 7 B, the operation of " yi ", the left hand thumb is put on the left space key, forefinger is put on the tee key, and right hand middle finger is put on the I key, and two hands while and beating keyboard can be seen on screen: easily.
Shown in Fig. 7 C, the operation of " tong ", left index finger is put on the tee key, and hand thumb is put on the right w/space key, the third finger is put on the L key, and two hands while and beating keyboard can be seen on screen: logical.
In the input process of three Chinese characters of Autotoll, what may find demonstration for the first time is not desired Chinese character in the above, needs to select.The phonetically similar word of Chinese character needs to select too much, and this is the shortcoming of spelling input method.Solve the problem of unisonance, what lean on now is high-speed, the huge memory capacitance and the intellectual analysis of computing machine.Utilize memory, association, semantic analysis, decide technology such as word, specialized dictionary with speech, after you are through the certain hour exercise, will form the dictionary of oneself, import Chinese character, vocabulary, sentence each time nearly all in the first candidate position, add some skills of oneself, the input Chinese character will fly up.The once input of three Chinese characters of Autotoll can obtain.
Certainly, the present invention is elaborated in the technical solution in the above, still also keyboard Designing can be become other shape, do not add at this and give unnecessary details.
The preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain principle of the present invention and practical application better, thereby the technical field technician can utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (6)
1. general fast recording keyboard, it is characterized in that, comprise a QWERTY keyboard, be provided with the matrix film circuit and the control chip that have the contact in the described keyboard, described QWERTY keyboard comprises left and right two space bars, on this QWERTY keyboard, with the gap between Y key, H key, N key, right w/space key and T key, G key, B key, the left space key as the virtual dividing line, with alphabetical Y, the U on described virtual dividing line right side, I, O, P, H, J, K, L, "; ", N, M key; mirror image is symmetric to T, R, E, W, Q, G, F, D, S, A, B, the V key on the keyboard in this virtual dividing line left side respectively; alphabetical Q, W, E, R, T, A, S, D, F, G, Z, X, C, V, the B key in described virtual dividing line left side, respectively mirror image be symmetric to P, O on the keyboard on this virtual dividing line right side, I, U, Y, "; ", L, k, J, H, "/", ". ", "; ", M, N key, the alphabetical virtual key of mirror image symmetry and former T, R, E, W, Q, G, F, D, S, A, B, V, C, X, Z key are formed the Chinese Pin Yin pseudonym enter key jointly, and the alphabetical virtual key of mirror image symmetry and former Y, U, I, O, P, H, J, K, L, N, M key are formed Chinese phonetic alphabet simple or compound vowel of a Chinese syllable enter key jointly.
2. general fast recording keyboard as claimed in claim 1 is characterized in that, when the alphabet key of pressing virtual dividing line left side and left space key, shows the corresponding letter on the former virtual dividing line right side that is mapped to this alphabet key; When not according to the bottom left space bar, show the letter of this alphabet key correspondence.
3. general fast recording keyboard as claimed in claim 1 is characterized in that, when the alphabet key of pressing virtual dividing line right side and right w/space key, shows the corresponding letter in the former virtual dividing line left side that is mapped to this alphabet key; When not according to the bottom right space bar, show the letter of this alphabet key correspondence.
4. general fast recording keyboard as claimed in claim 1 is characterized in that, described control chip is caught each button contact condition on the keyboard, comprises interface that is connected with computing machine and the interface that is connected with keyboard.
5. general fast recording keyboard as claimed in claim 1 is characterized in that, is respectively arranged with the contact that contacts with described left and right space bar on the described matrix film circuit.
6. general fast recording keyboard as claimed in claim 1, it is characterized in that, described control chip internal memory contain corresponding described general fast recording keyboard the coding rule table, in described coding rule table, search and key-press status corresponding codes information by the scan code of intercepting and capturing described general fast recording keyboard buffer zone.
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| CN201110232563.XA CN102298445B (en) | 2011-08-15 | 2011-08-15 | Universal shorthand keyboard |
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| CN103197766A (en) * | 2013-03-19 | 2013-07-10 | 王耀昶 | Method and device for rapidly inputting English into computer |
| CN103838387A (en) * | 2012-11-22 | 2014-06-04 | 创杰国际股份有限公司 | Speed-adjustable USB keyboard |
| CN104699402A (en) * | 2014-09-03 | 2015-06-10 | 周旭 | Sliding input device and method based on touch screen |
| CN105589567B (en) * | 2015-11-04 | 2018-07-31 | 刘文仲 | Hit by hands formula spelling input keyboard and input method |
| CN109407857A (en) * | 2017-08-15 | 2019-03-01 | 联想（新加坡）私人有限公司 | The method of scan code is sent in keyboard system, embedded controller and keyboard system |
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| CN101788853A (en) * | 2010-02-09 | 2010-07-28 | 王晓琴 | Method for inputting Chinese phonetic alphabet through simultaneous stroking of a plurality of fingers based on symmetric virtual key mapping of computer standard keyboard |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103838387A (en) * | 2012-11-22 | 2014-06-04 | 创杰国际股份有限公司 | Speed-adjustable USB keyboard |
| CN103838387B (en) * | 2012-11-22 | 2017-07-14 | 创杰国际股份有限公司 | Speed-adjustable USB keyboard |
| CN103197766A (en) * | 2013-03-19 | 2013-07-10 | 王耀昶 | Method and device for rapidly inputting English into computer |
| CN103197766B (en) * | 2013-03-19 | 2016-02-10 | 王耀昶 | A kind of computer English speed recording method and device |
| CN104699402A (en) * | 2014-09-03 | 2015-06-10 | 周旭 | Sliding input device and method based on touch screen |
| CN104699402B (en) * | 2014-09-03 | 2018-03-16 | 周旭 | Slide input device and method based on touch-screen |
| CN105589567B (en) * | 2015-11-04 | 2018-07-31 | 刘文仲 | Hit by hands formula spelling input keyboard and input method |
| CN109407857A (en) * | 2017-08-15 | 2019-03-01 | 联想（新加坡）私人有限公司 | The method of scan code is sent in keyboard system, embedded controller and keyboard system |
| CN109407857B (en) * | 2017-08-15 | 2022-06-17 | 联想（新加坡）私人有限公司 | Keyboard system, embedded controller and method for sending scanning code in keyboard system |
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| Publication number | Publication date |
|---|---|
| CN102298445B (en) | 2014-07-09 |
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