CN103135786B - For the method to electronic equipment input text - Google Patents
For the method to electronic equipment input text Download PDFInfo
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- CN103135786B CN103135786B CN201310079031.6A CN201310079031A CN103135786B CN 103135786 B CN103135786 B CN 103135786B CN 201310079031 A CN201310079031 A CN 201310079031A CN 103135786 B CN103135786 B CN 103135786B
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Abstract
The present invention relates to a kind of for the method to electronic equipment input text, including detection user's input and current keyboard layout parameter, according to current keyboard layout parameter, obtain and input, with user, the character set being associated, character set includes possible corresponding all or part of character that user inputs, character set is added current input sequence, find downwards to the node associated by described character at least one character at least one character set in current input sequence and from dictionary root node, candidate word list is constituted according to described node, show described candidate word.Have employed the present invention for electronic equipment input text method, user can be with self-defined different keyboard layout, and arbitrarily switch at different cloth interoffices, automatic error-correcting can be realized simultaneously, and can based on context Intelligent Selection word, use the method can be substantially reduced the design cost of portable set manufacturer.
Description
The application be the applying date be on April 18th, 2008, application number be 200810036302.9, denomination of invention be that " one can
Realize the system of live keyboard layout " the divisional application of application for a patent for invention.
Technical field
The present invention relates to electronic device field, particularly to electronic device information input technology field, specifically refer to a kind of user to
The system of the realized live keyboard layout of electronic equipment input text.
Background technology
In the modern life, along with the development of integrated circuit technique, occur in that various electronic equipment, at these
On numerous electronic equipments (such as palm PC, smart mobile phone, embedded system, pocket computer etc.), due to by volume,
The restriction of the factors such as manufacturing cost, it is impossible to be equipped with full-scale hardware keyboards, thus carry out input on this kind equipment and be typically to fill
Full challenge.
Traditional mobile phone or portable device keyboard use the button of compound multiple characters, by supporting software and the dictionary carried
File, dopes user according to the input keystroke sequence of user and thinks the word of input.A kind of common input method is to keystroke sequence
Row structure index tree, a specific keystroke sequence can correspond to multiple word regularly.When a user presses a button, according to keystroke
Sequence searches index tree, finds multiple candidate word of correspondence and shows on screen for user's selection.This method is in dictionary configuration
Upper closely related with the layout of keyboard, even redesign software whenever keyboard layout change is accomplished by reconfiguring dictionary configuration.
For the software keyboard on touch screen, this method motility is poor, and major defect has three: first, it is impossible to spirit
Live and change keyboard layout.If the layout of letter changes, such as (beautiful, sub-from QWERTY standard computer keyboard layout
Continent country commonly uses), when being switched to AZERTY keyboard layout (European countries commonly use), it is necessary to thoroughly rewrite software and dictionary
File；Second, it is impossible to intelligent correction.If user has pushed the wrong one or more button, the word after correction just cannot be demonstrated；
3rd, it is impossible to conveniently enter the word not having in dictionary, such as some names, place name, Email address, specific term, etc.
Deng.
Simultaneously as the keyboard size reduced, user is easy to press the wrong button, and especially presses on neighbouring key.Therefore at software
On to realize the function of automatic error-correcting be very useful.A kind of common automatic error correction method is to utilize to search list of common error in fact
Existing automatic error correction function.Such as, " can " mistake is often combined into " csn " by user, because at the keyboard of QWERTY layout
On, letter " a " and " s " is on adjacent position, it is easy to push the wrong.This method is predefined common by consulting one
Error listing, including missed keys sequence and correct word, such as " csn "-> " can ", with this by missed keys sequence
It is revised as correct word.But the limitation of this method is apparent from: it can only judge limited known error type, right
In more generally cannot effectively identify adjacent to key errors, and easily judge by accident.
Another kind of automatic error correction method is the position by judging screen contact, calculates it and arrives the distance between each key, and with
This Weighted distance calculated between keystroke sequence and each possible word, finally choose Weighted distance minimum, in dictionary
Word.This method is the most feasible, but the most complicated, owing to the computing capability on general portable set has
Limit, is difficulty with.
Summary of the invention
It is an object of the invention to overcome above-mentioned shortcoming of the prior art, it is provided that one can change keyboard layout flexibly and have intelligence
The system of energy error correction.Comparing traditional method, the advantage of the present invention is embodied in the following aspects:
First, present system can use various keyboard layout flexibly.For equipment vendors, for each newspeak
Or input method is required for spending a large amount of manpower and materials to transform original software and input system, or purchase new software.And use this
After system, only need to define new keyboard layout simply, it is not necessary to change software kit.This is the localization of multi-lingual version
Provide scheme the most easily.For user, can according to self use habit customizing keyboard layout,
Practical more flexibly.
Second, present system can realize a kind of more effectively, more practical error correction method, solve user on the keyboard reduced
The problem often pressed the wrong button.Relatively with two kinds of traditional error correction methods, present system can be in the reality of conventional portable equipment
Under computing capability, error correction the most all sidedly, it is possible to allow user setup error correction scope, is the error correction method of a kind of real practicality.
3rd, present system can be according to the context environmental of text, in conjunction with syntactic analysis, it is judged that be best suitable for current context
Candidate word, improve candidate word accuracy.
According to an aspect of the invention, it is provided a kind of realized live keyboard layout for inputting text to electronic equipment
System, including the input module of the input for detecting user；It is connected to the layout map module of described input module, described cloth
The input at least one times of user, according to current keyboard layout, is mapped at least one character set corresponding by office's mapping block；
For storing the lexicon module of word candidate；It is connected to described lexicon module and the candidate word module of described layout map module, institute
State candidate word module and generate list entries according to corresponding multiple character sets, and find out possible time according to list entries
Select word and sorted；And be connected to described candidate word module and export the output module of described candidate word.
According to another aspect of the present invention, it is provided that a kind of for the realized live keyboard layout to electronic equipment input text
Method, including wait user input signal the 1st step；User input signal is converted to one according to current keyboard layout
Character set, described character set comprises the second step of the possible corresponding character of described user input；By described character set
Add the third step of current input sequence；According to described current input sequence, generate candidate word the sort by priority the 4th
Step；Show the 5th step of described candidate word.
According to another aspect of the present invention, a kind of method being switched fast keyboard layout, it is included on the display device of band sense of touch
1st step of one keyboard layout of display；Wait the second step of the action moved on the touchscreen user contact；By original
Keyboard layout is along the third step of contact moving direction removal screen；New keyboard layout is moved into screen along contact moving direction
4th step.
According to another aspect of the present invention, a kind of method of dynamic change keyboard layout, it is included on the display device of band sense of touch
Show the 1st step of multiple button；Detect the second step of current collector action after user presses on a button；Detection is used
The third step of the position of relieving contact, family；Adjusting keyboard layout, it is right to be adjusted by described button to described relieving contact position institute
The position answered, and show the 4th step of the keyboard layout of renewal.
Accompanying drawing explanation
Accompanying drawing 1A-1E is the schematic diagram illustrating various different keyboard layouts according to embodiments of the present invention；
Accompanying drawing 2A is to illustrate a kind of candidate word according to embodiments of the present invention and the schematic diagram of related term thereof；
Accompanying drawing 2B is illustrate according to embodiments of the present invention a kind of by the schematic diagram of context determination candidate word；
Accompanying drawing 2C-2D is the schematic diagram that a kind of basis illustrated according to embodiments of the present invention predicts next word above；
Accompanying drawing 3 is to illustrate a kind of block hardware diagram according to embodiments of the present invention；
Accompanying drawing 4 is to illustrate a kind of system module structure chart according to embodiments of the present invention；
Accompanying drawing 5 is the flow chart that a kind of user illustrated according to embodiments of the present invention completes once to input；
Accompanying drawing 6 is to illustrate the schematic diagram of the information that each key is comprised in a kind of layout modules according to embodiments of the present invention；
Accompanying drawing 7 is to illustrate a kind of schematic diagram launching a key accurately to input according to embodiments of the present invention；
Accompanying drawing 8 is to illustrate a kind of dictionary configuration schematic diagram realizing quickly searching candidate word according to embodiments of the present invention；
Accompanying drawing 9 is to illustrate a kind of flow chart generating candidate word according to embodiments of the present invention；
Accompanying drawing 10 is to illustrate the realized live keyboard cloth for inputting text to electronic equipment according to embodiments of the present invention
The general flow figure of the method for office；
Accompanying drawing 11A-11C is to illustrate a kind of schematic diagram being switched fast keyboard layout process according to embodiments of the present invention；
Accompanying drawing 12 is the general flow figure that the realization illustrated according to embodiments of the present invention is switched fast keyboard layout；
Accompanying drawing 13A-13B is the schematic diagram illustrating a kind of dynamic change keyboard layout process according to embodiments of the present invention；
Accompanying drawing 14 is to illustrate the general flow figure dynamically changing keyboard layout according to embodiments of the present invention；
Detailed description of the invention
Before describing in detail according to embodiments of the invention, it should be noted that, described embodiment essentially consists in and sets with to electronics
The method step of standby middle input text dependent and the combination of apparatus assembly.Therefore, corresponding device assembly and method step are attached
Figure is showed in position by ordinary symbol, and merely illustrates relevant with understanding embodiments of the invention thin
Joint, in order to avoid having obscured these public affairs because of those details obvious for the those of ordinary skill in the art having benefited from the present invention
Open content.
In this article, such as left and right, upper and lower, front and rear, the relational terms of first and second etc is used merely to distinguish one
Individual entity or action and another entity or action, and not necessarily require or imply any reality between this entity or action
This relation or order.Term " includes ", " comprising " or any other variant are intended to comprising of nonexcludability, thus makes
Must include that the process of a series of key element, method, article or equipment not only comprise these key elements, but also comprise and the most clearly arrange
Other key elements gone out, or the key element intrinsic for this process, method, article or equipment.
For the purpose of this disclosure, term " keyboard " is generalized definition, including any have determine the input block in region,
Including but not limited to the software keyboard etc. on hardware mechanical keyboard, hardware inductive keyboard, touch screen.The enforcement of the present invention
Example acquiescence illustrates as a example by the software keyboard on touch screen, but it will be understood by those skilled in the art that mentioned by the present invention
Method and system can also be applied to hardware keyboards.
1. basic function and operation
Figure 1A describes involved in the present invention one can realize the keyboard system 100 of live keyboard layout and carrier portable formula sets
Standby 101.User is on keyboard 110 after button, and its input content shows in text filed 102.Keyboard 110 is QWERTY
Layout, contains 26 English alphabets, numeral, symbol and space bar, and each button and can represent three characters.Figure 1B retouches
Having stated the keyboard 120 of another kind of layout, for singly-bound QWERTY layout, each button represents a character, can between two keys
There is numbers and symbols.Fig. 1 C describes the keyboard 130 of another kind of layout, and for AZERTY layout, each button can represent three
Individual character.Fig. 1 D describes the keyboard 140 of another kind of layout, is 9 key layouts, each button can represent three to four letters and
One numeral, extensively applies on cell phone keyboard.Fig. 1 E describes the keyboard 150 of a kind of User Defined layout, each button
Three characters, the content of character and order can be represented customized according to use habit by user.
For the purpose of this disclosure, in order to avoid accompanying drawing mark is excessively complicated, hereinafter by with key each in each keyboard layout
The each key of the first row central authorities character mark.Such as, with the button 111 in the keyboard upper left corner in key " qw " mark Figure 1A；Use key
The button 121 in the keyboard upper right corner in " p " mark Figure 1B；With the button in the keyboard lower left corner in key " wx " mark Fig. 1 C；
With the button 141 of keyboard last cell in key " wxyz " mark Fig. 1 D.When the weight that method definition accordingly occurs in same figure
During multiple mark, then sequence number mark is used to distinguish, to guarantee the uniqueness of this identification method.
It is pointed out that method described in the invention can also apply to other languages in addition to English, other keyboard cloth
Office, and letter, numeral, the particular content of symbol and position the most all can arbitrarily change.
Returning to Figure 1A, when user clicks on the key generation keystroke sequence on input through keyboard region, the word of candidate is shown by system
In candidate region 103, simultaneously can be in the candidate word of text filed middle display acquiescence.When user clicks on candidate word, or press confirmation
During key (when such as space bar or some punctuation mark), selected word will input in text filed 102.
Such as, in figure ia, when user's order presses key " ty ", key " ui ", and during key " er ", it is right that system finds in dictionary
Answer all words of this key sequence, and by its sequencing display in candidate region 103.Due to word " tie ", " turn ", " tired ",
" yield " has the highest word frequency, therefore display is at the page 1 of candidate word list.Wherein " tie " is simultaneously as the candidate word of acquiescence
It is also shown in text filed interior, and with special format (such as underscore) to show that it is the most unacknowledged text.When user presses sky
During lattice key, this candidate word is just identified and inputs to text.Owing to user is when button and indefinite appointment each button institute's generation
The concrete character of table, but by dictionary matching candidate word, because of referred to herein as " Indistinct Input ".
According to certain embodiments of the present invention, user can also accurately input.Such as, with reference to Figure 1A, at the key of touch screen
On dish 110, user can decontrol after pressing and move to left on key " ty ", accurately inputs letter " t "；Key " ui " is pressed also
Move to right relieving, accurately input letter " i "；Key " er " pressed and moves to right relieving, accurately inputting letter " r ".Now system
Find is all " tir " word of starting: " tired ", " tiring ", " tire ", " tirade ".
According to certain embodiments of the present invention, user can be by the symbol below slide downward contact input key or numeral.Such as,
With reference to Figure 1A, user can move down contact on key " gh ", then input numeral " 3 ".So user is no need for being switched to
Special figure pattern or pattern of symbol.
The most such as, with reference to Figure 1B, user can input two in key " q " or key " s " or its zone line slide downward contact
Symbol between person ";”.
The part in word can also be become according to certain embodiments of the present invention, symbol and numeral.Such as " I ' m ", " I ' ll ",
" let ' s ", " C++ ", " part-time " etc..User can facilitate topotype to stick with paste incoming symbol or number on same keyboard mode
Word, without being switched to other pattern of symbol.Such as, with reference to Figure 1A, on keyboard 110, single quotation marks " ' " at key
On " ui ", user only need to sequentially press key " ui ", key " ui ", key " m/ ", and system just can find word " I ' m " and by it
Display is in candidate region.
According to certain embodiments of the present invention, when user wants to change keyboard layout, such as, change from the QWERTY layout of Figure 1A
During for the 9 key layout of Fig. 1 D, it is only necessary to by a predefined action, can realize being switched fast.Such as, touching
On the keyboard of screen, user can slide into right-hand member from the left end of keyboard area rapidly with finger, then QWERTY layout is to the right
Move and remove the right-hand member of screen, and 9 key layouts slip into from the left end of screen, produce coherent dynamic effect.Same, use
Family can also be switched to the singly-bound QWERTY layout shown in Figure 1B, or the AZERTY layout shown in Fig. 1 C, or Fig. 1 E
Shown User Defined layout.The mode of switching layout can have a variety of: can detect the gesture of user, it is possible to use one
Individual specific button, it is also possible to pass through sound control.In this handoff procedure, due to layout and the dictionary search function of system
Separate, it is possible to use identical lexicon file and software.
Owing to, on less keyboard area, user often presses in adjacent key mapping when input, according to the one of the present invention
Preferred embodiment, can automatically correct this mistake according to dictionary.Such as, in fig. ib, when user thinks button " t ",
It is likely to press mistakenly on key " f ".System meeting search key " f " letter " r " around, " g ", " d ", " v " root
Possible correct word is judged according to the input before user.In an embodiment of the present invention, though the letter of all inputs of user
Being all wrong, system is likely to find out correct word.Such as, user have input " v ", " i ", " p ", and " l ", system can
With prompting user's candidate word " book ", because " v ", " i ", " p ", " l " is respectively " b ", " o ", " o ", and " k's " is neighbouring
Letter.It is noted that when character position is separated by bigger, need to expand the scope (being such as separated by the error correction of two keys) of error correction.
But the side effect expanding error correction scope is that candidate word quantity can increase.In order to solve this contradiction, one of the present invention is preferable to carry out
Example is that error correction scope can be adjusted according to user preference.User can be arranged on carry out error correction by alphabetical great scope,
Such as error correction in all adjacent letters, or only error correction in the letter that left and right is adjacent, or only entangle in neighbouring letter
Mistake, or it is separated by error correction between two letters (such as " t " and " u "), or not error correction.
According to certain embodiments of the present invention, the related term of candidate word can be rapidly selected.Such as, with reference to Fig. 2 A, candidate is worked as
When candidate word 211 " compare " occurs in region, user is in " compare " upper slide downward contact, then keyboard area occurs
Related term corresponding to " compare ", " comparing ", " compared ", " compares ", and " comparison ".
User clicks on one of them related term and can be input to text filed.In a lot of language, this related term is the most common
's.The such as verb in English has a lot of different tense, and noun has plural form, and a word can have multiple part of speech etc..
These word associations can be got up by embodiments of the invention, thus when user can extend to other rapidly from a candidate word
Related term.
According to certain embodiments of the present invention, can be according to the context relation candidate word of text and provide phrase to predict.Such as, ginseng
Examine Fig. 2 B, need after have input " I " before user to input " am ", but press at neighbouring key " bn " when inputting " m "
On.Now, system can based on context correlation rule, it is judged that " I am " is common phrases, therefore adjusts candidate word 221
" am " is higher than original candidate word " an " priority.In a lot of language, this phrase, specific collocation, custom grammer
Phenomenon the most common, therefore the probability of occurrence of a word depends not only on the word frequency of this word, more depend on this word with up and down
The probability of collocation between literary composition.In this instance, although " an " is a ratio higher word of " am " word frequency, but at the heel of I
The most always " am ", rather than " an ".The most based on context suitable word is selected can be greatly improved the effectiveness selecting word,
And then raising input efficiency.The most such as, with reference to Fig. 2 C, after user have input word 231 " look ", in candidate word list
Automatic Prediction forms the candidate word " forward to " that phrase is arranged in pairs or groups, " at ", " into ", " for " to " look ", selects for user
Select.
According to certain embodiments of the present invention, context relation and phrase association can be provided on the basis of related term.Such as,
With reference to Fig. 2 D, when user have input related term " looking " of " look ", candidate word region remains to dope " look "
Corresponding phrase collocation " forward to ", " at ", " into ", " for " etc..
2. system structure and principle
Fig. 3 describes the general block diagram of a kind of portable equipment 300 being suitable for the present invention.Input equipment 301, display device 302 and
Storage device 303 is connected with processor 304 by electronic circuit.Input equipment 301 can be keyboard or touch pad；Display dress
Putting 302 can be liquid crystal display screen；Storage device 303 can be any memory media, and such as random-access memory (RAM), read-only
Internal memory (ROM), flash memory (Flash), hard disk etc.；Processor 304 can be CPU or dedicated IC chip.A lot of situations
Under, input equipment 301 is likely to synthesize, such as touch screen with display device 302.Storage device 303 can preserve all of software,
Comprising operating system 311 and the keyboard software 310 etc. that the present invention relates to, alternatively, storage device can also include that other are applied
Program 312, such as text editor etc..
The keyboard system of the present invention is managed by keyboard software 310.Fig. 4 describes a kind of optimum decision system of this keyboard software
Structure 400.This system mainly by input module 401, layout map module 402, arrange module 403, candidate word module 404,
Lexicon module 405 and output module 406 form.
Input module 401 is responsible for the input of detection user, the button of such as user, contact action etc. on the touchscreen, and defeated
Go out to layout map module 402.User's input, according to current keyboard layout, is mapped to this input institute by layout map module
Corresponding character set, and export to candidate word module 404.Lexicon module 405 is responsible for candidate word module 404 and provides dictionary
In word.Candidate word module 404 is responsible for generating all previous character set list entries, and find out according to list entries can
Can candidate word and sorted.Output module 406 is responsible for candidate word being exported in a certain way to equipment, selects for user.
Module 403 is set and stores user and default, for example whether enable error correction, whether detect context etc., for layout map
Module 402 uses with candidate word module 404.
Fig. 5 describes the keyboard software mastery routine main flow 500 when completing user's input and selecting word, possesses following steps: wait
User inputs (step 501)；Judge whether to confirm operation (step 502)；If so, at the word of text filed middle input validation,
And empty list entries (step 503)；If it is not, generate this input corresponding character set (step in layout map module 402
Rapid 504)；The character set this inputted constitutes list entries (step 505) with the character set inputted before；Candidate this
Module generates candidate word list, row major level of going forward side by side sequence (step 506)；The candidate word list (step 507) that output updates.
For step 502, input module 401 judges whether this input confirms operation.Confirm that operation can be by space bar or true
Recognize strong (selected default candidate word), or click directly on candidate word, or chosen after candidate word by space bar or true by directionkeys
Recognize strong, or inputting punctuation mark selectes default candidate word, or other operations specified the most in advance automatically.
For step 504, this input can be mapped as the character of correspondence according to current keyboard layout by layout map module 402
Set.This character set comprises all characters likely corresponding to this input.Such as, when user is shown in Figure 1A
When pressing key " qw " in qwerty keyboard layout, character set comprises the Indistinct Input character " q " on this key, " w ".And
When setting enables error correction, character set also can comprise the character in adjacent keys, such as " a ", " s ", " e ".
For step 505, the character set that this inputs can be joined in list entries by candidate word module 404.Such as, at figure
In qwerty keyboard layout shown in 1A, after user successively presses key " ty ", key " ui " and key " er ", input sequence
Arrange and comprise the character sets inputted three times: { " t ", " y " }, { " u ", " i " }, { " e ", " r " }.Subsequently, candidate word
Module 404 can search out possible candidate word, such as " tie ", " turn " according to various possible combinations in lexicon module 405
Deng.Finally, according to preferred sequence, candidate word can be sorted.In some preferred embodiment, may specify the candidate that priority is the highest
Word is default candidate word, i.e. when user inputs space or other symbols, automatically confirms that default candidate word is text filed for being input to
Word.
For step 506, the candidate word list after updating can be shown on screen, select for user by output module 406.At certain
In a little embodiments, can default candidate word be shown in text filed, and with a kind of special format highlight mark out.
Return to Fig. 4, in the present embodiment implementation method of each module is described below in detail.
Input module 401 detects the actuation of keys of user, and by the related data record of button each time and export.One-touch
Related data can be including but not limited to:
● user presses the start position of lower contact
● user decontrols the final position of contact
● the track of user's current collector
● the time of staying of user's holding contact
Such as, in figure ia, when decontroling after user presses key " qw " and moves to right, the output of input module 401 can comprise
User presses the starting point coordinate of this key and decontrols the terminal point coordinate of this key.
Return to Fig. 4, module 403 is set and comprises the various configuration informations relevant to system operation, use preference, system including user
Mode of operation etc..Such as, user can close error correction.The most all would not be repaired by the mistake to adjacent key；And for example,
User can select the rank of error correction: only corrects the mistake of neighbouring button, the only mistake of correction left and right adjacent key, correction
The mistake of periphery adjacent key or the mistake of correction adjacent two layers button are (as on the singly-bound QWERTY layout shown in Figure 1B
" d " can be corrected to by " g ", " f ", " h ", " j ").It is optional for arranging module 403.
Returning to Fig. 4, layout map module 402 has three major functions.
First function of layout map module 402 is definition and stores the various layout parameter having different keyboard, such as have on keyboard
Which character, which character is compounded on a key, the most accurately selects character on key etc..Such as, in figure ia,
Letter " q ", " w ", and symbol "；" one key " qw " of multiplexing.Fig. 6 then describes a kind of key " qw " described in the internal memory
Data structure, wherein can be including (but not limited to) following field:
● this key position on keyboard layout region and size
● character shown on this key and region, relevant position thereof: " q ", " w ", ";”
● the character group of the corresponding input of action that user is different:
Directly decontrol after zero click: Indistinct Input " q ", " w ", ";”
Move on zero: Indistinct Input " q ", the patterns of capitalization (" Q ", " W ") of " w "
Zero moves to left: accurately input " q "
Zero moves to right: accurately input " w "
Zero upper left is moved: accurately input " Q "
Zero upper right is moved: accurately input " W "
Zero move down accurately input ";”
Accurately the mode of input can have a variety of.A kind of preferably movement according to the contact of user judges accurately to input
Character；Multiple characters on this key are launched to select for user after preferably length presses certain input elements by another kind.Such as, exist
In Figure 1A, after user's long keying " as " is more than a Preset Time, this keyboard is just presented as accurately inputting mould shown in Fig. 7
Formula, demonstrates the character group 701 representated by this keys all, selects for user.The initial pattern of Figure 1A is returned after having selected.In west
Europe language calls the turn, and this mode can be used to select accented characters, such asDeng.
It should be noted that each field of this data structure can carry out deleting amendment as required, and do not affect the present invention's
Essence.For example, it is possible to increase a field, above key, after describing button, whether show the picture of amplification, be used for pointing out use
The input that family is current；And for example, when the position of key or size are fixed, it is convenient to omit this key position size letter on keyboard area
Breath field.Meanwhile, the different touch action definition of user can also be extension.Such as can increase definition " with the head of a household by being somebody's turn to do
Key is more than the X second " corresponding input, wherein X can be a configurable value；And for example, " user double-clicks can to increase definition
This key " corresponding input.
As can be seen here, different actuation of keys can correspond to different character sets.
Second function of layout map module 402 is to store all keyboard layouts that may use and switch as required.A certain
Moment, have and only one be the currently active keyboard layout.Here it is user in input through keyboard region it can be seen that current key
Dish layout.
In a preferred embodiment of the invention, user can utilize gesture on the touchscreen to switch current keyboard layout, it is also possible to
Certain specific button in hardware keyboards is utilized to switch current keyboard layout.
3rd function of layout map module 402 is according to current keyboard layout, and user is originally inputted to be mapped as this defeated
Enter possible corresponding character set.The data structure of a kind of preferred character set can comprise Indistinct Input character group, accurately inputs
Character, and error correction character group.
Such as on the QWERTY layout shown in Figure 1A, after user presses key " qw " and directly decontrols, this module first from
Input module 401 obtains the coordinate of contact, can determine whether out that button is on key " qw " according to current arrangements.Owing to action is
Directly decontrol after click, according to the topology data of key " qw " can obtain the Indistinct Input character group of its correspondence for (" q ", " w ", " 1 ",
“;").Module 403 reads current error correction it is set to vertical error correction from arranging, from current arrangements, then obtain the character of lower section
" a " and " s " is as error correction character.In this button final, the output character collection of layout map module 402 is combined into: fuzzy
Input character group (" q ", " w ", " 1 ", ";"), accurately input character (empty), error correction input character group (" a ", " s ").
The most such as, in 9 key layouts shown in Fig. 1 D, the layout information that key " jkl " is corresponding is as follows:
● this key position on keyboard layout region and size
● character shown on this key and region, relevant position thereof: " j ", " k ", " l ", numeral " 5 ", fullstop ". "
● the character of the corresponding input of action that user is different:
Directly decontrol after zero click: Indistinct Input " j ", " k ", " l ", " 5 "
Zero length is pressed: enter SHIFT pattern (as pinned SHIFT key on computor-keyboard)
Zero moves to left: in the normal mode, accurately input " j "；Under SHIFT pattern, accurately input " J "
Zero moves to right: in the normal mode, accurately input " l "；Under SHIFT pattern, accurately input " L "
Move on zero: in the normal mode, accurately input " k "；Under SHIFT pattern, accurately input " K "
Zero moves down: in the normal mode, accurately inputs fullstop ". "；Under SHIFT pattern, accurately input " 5 "
When decontroling after user clicks directly on key " jkl ", layout map module 402 obtains the above-mentioned layout information of key jkl.
Owing to this action is for directly decontroling after clicking on, therefore Indistinct Input character group is (" j ", " k ", " l ", " 5 ")；Simultaneously because
Error correction in module 403 is set and is set to left and right error correction, therefore error correction character group be key " jkl " periphery adjacent character group (" m ",
" i ").
It is if the user while long after moving to left on key " jkl " press (or long press then move to left), long by action owing to this button comprising one,
Therefore switching to SHIFT pattern, accurately input character is (" J "), Indistinct Input character group (empty).According to arranging module 403
Set information, when accurately input be sky, system is without error correction.Therefore error correction character group is also (empty).
As can be seen here, the input of user is converted into the character set unrelated with keyboard layout by layout map module 402 effectively,
Therefore the candidate word module 404 after changes software or data structure without the difference according to layout.When keyboard layout changes it
After, the layout information that layout map module 402 obtains changes the most accordingly, and the character set therefore exported changes the most therewith.
Because of independent keyboard layout design, keyboard layout can be predefined by cell phone manufacturer completely, or by User Defined,
Without affecting any systemic-function.Such as, user can be with the layout of oneself definition key mapping, character corresponding on each key, with
And the character group that action is corresponding, thus write out the keyboard layout of oneself use habit applicable.Meanwhile, different language version is defeated
Enter the keyboard layout that method can also be corresponding from different.
Returning to Fig. 4, character set corresponding for this input is joined in list entries by candidate word module 404, searches dictionary with this
Word corresponding in module 405, and according to certain rule (such as word frequency, context phrase, related term etc.), word candidate is entered
Row major level sorts, and candidate word exports output module 406 the most at last.
It will be understood by those skilled in the art that the structure of dictionary can use a variety of implementation, such as, be stored in number
According to storehouse, or store with tree.Correspondingly, dictionary finds out possible candidate word and also have a variety of method.
Following for being fully described by the feasibility of native system, illustrate a kind of dictionary implementation method that can quickly search word,
But the present invention is not rely on this method.Word in dictionary is arranged in tree by the method, as shown in Figure 8.?
Each node Ni-1, Ni-2 in tree-shaped dictionary ... Ni-m represents a character, and wherein i represents this node degree of depth in tree
(i-th layer).It is positioned at the node on behalf i-th character of word of i-th layer.M represents the character sum in this layer, such as
Have 26 letters in English, then m can be less than 26；If the word being made up of other symbols can be comprised in dictionary,
Such as don ' t, then m can be more than 26.These nodes by path P i-j-1, Pi-j-2 ..., Pi-j-m couples together, and wherein i-j represents
The connected father node in this path is Ni-j.Reach down to the sequence node of the path institute approach of a certain node from root node, being referred to as should
The character string of node (or this path).If the character string of a node is a word in dictionary, then claim this node
For word node.If a certain paths does not exists, then the character string representing this path does not exists in dictionary.Such as, English
Node corresponding to language word apple, it is simply that find node a-p-p-l-e from root node order downwards.Wherein the 1st alphabetical a institute
Corresponding node is at the 1st layer of tree, and the node of the 2nd alphabetical p is at the 2nd layer of tree, and the node of the last letter e is
Word node, its character string is exactly " apple ".The benefit of this tree is to be quickly found a specific word
Whether auxiliary sequence is a word in dictionary, and the node that this word is corresponding.
Each word node may correspond to a word object, but the data structure of word object is independently of dictionary configuration.
One word object can comprise following information: the statistics word frequency of word, related term, context relation is regular, alternate formats etc..
The statistics word frequency of word can be with a numeric representation, and such as numeral 1 to 8,8 represents the most frequently used word, and 1 representative is the most conventional
Word.Statistics word frequency can become a significant consideration of candidate word prioritization.When not considering other factors, word frequency
The highest, the priority of word is the highest.
The related term of word refers to the word being associated with this word, the plural form of such as noun, the different tenses of verb, is somebody's turn to do
Different parts of speech of word etc..The such as related term of English word " jump " includes " jumps ", " jumping ", " jumped "
Deng.Related words list can realize by pointer mode, and i.e. one word object can point to its other word object being associated.
The purpose retaining related term information is to facilitate user quickly to select its word associated from a word.Such as see as user
When " jump " occurs in candidate word, certain action specified in advance (such as slide downward on word) can be passed through allow be
System demonstrates all of related term, and therefrom selects.
Context relation rule contains the information relevant to context environmental such as the common phrase collocation of this word, grammer criterion.
Such as, the context relation rule of word " look " can comprise common phrase and arrange in pairs or groups " look at ", " look forward to ",
" look for " etc..And for example, the context relation rule of word " am " can comprise common phrase collocation " I am " etc..And for example,
The context relation rule of word " of " can comprise grammatical rules: " word being followed by should be noun or gerund ".There are these
After information, system can be by the priority of context intelligent decision candidate word.
In the present embodiment, can also come into force mutually during context relation rule is between related term.Such as, context relation is worked as
When rule has " look forward to ", even if literary composition occurring, " looking " can also be associated with " forward to ", because
" looking " is the related term of " look ".
Alternate formats be certain form of expression of this word, such as " asap " be the abbreviated form of " as soon as possible ",
If that user have input " asap ", system can correspond to " as soon as possible " automatically.Therefore " as soon as
Possible " it is exactly the alternate formats of word object " asap ".And for example, user's input " dont " can be corrected as " don ' t " automatically,
Because word object " dont " is upper containing alternate formats " don ' t ".Now word object " dont " actually one index.
When a word has alternate formats, alternate formats can preferentially be exported by candidate word module.
Fig. 9 describes a kind of method generating candidate word in the present embodiment, comprises the steps of according to list entries, at dictionary
The corresponding word object of middle searching is as candidate word (step 901)；It is labeled as entangling by comprising the candidate word of character in error correction character group
Wrong candidate word (step 902)；Find the related words list (step 903) corresponding to candidate word；Find replacing corresponding to candidate word
For form (step 904)；Candidate word is carried out prioritization (step 905).
For step 901, candidate word module 404 is by character set institute corresponding for each button obtaining from layout map module 402
The list entries constituted is combined into possible candidate word.In theory, as long as all character arrangements of list entries are combined, and choose
Select all existing words present in the lexicon module, i.e. may make up candidate word list.But it practice, one-touch may bag
Containing multiple possible characters, and the character string that repeatedly button is likely to be formed will be more.Along with the length of list entries increases,
If searching dictionary after listing the fully intermeshing of all character strings again, amount of calculation can be the biggest.Therefore, the one of the present invention
Planting preferred candidate word lookup method is the feature utilizing lexicographic tree, quickly gets rid of impossible character sequence by the node of retrieval number
Row.Such as, if the character set of user's button for the first time is (" a ", " s "), the character set of button is (" b ", " n ") for the second time,
The character set of button is (" t ", " y ", " u ") for the third time, then the character string combination of three buttons is 2*2*3=12.
If but analyzed the character string that front twice button is possible: " ab ", " an ", " sb ", " sn ", it is possible to find in dictionary, there is not " sb "
The word (path is empty) of sequence beginning, the most only needs to consider " ab ", " an ", " sn " is possible with the combination of rear three characters.
Finding after analyzing further, in the arrangement of all three character, only " ant ", " any ", " aby " may become with " abu "
For word or the beginning part of word.Therefore actual possible combination is well below 12.Along with the increase of user key-press number of times,
Although may combining of character string is increasing in theory, but profit is in this way, along with constantly getting rid of impossible path, meter
Calculation amount remains at reduced levels.
For step 902, when list entries contains error correction character group, the candidate word that step 901 is found out contains error correction
After word, therefore to be easy to distinguish it with the most corrected ordinary candidate word, be marked as error correction candidate word.According to
Statistics, user presses the probability to key and is higher than the probability pushing the wrong into certain key.Therefore, in follow-up prioritization, error correction
The priority of candidate word can be less than ordinary candidate word.
For step 904, the alternative form found can substitute for original candidate word, adds candidate word list.
For step 905, candidate word searches module 404 to be needed candidate word is carried out prioritization.The factor affecting priority can
Comprise: context relation rule, add up word frequency, candidate word length etc..First, context relation rule can be paid the utmost attention to.Example
As, if having input above " look forward ", the word inputted the most below is likely to be " to " rather than close with it
And " go " that word frequency is the highest equally.At this point it is possible to it is regular and current text location by the context relation of comparison candidate word
Above with hereinafter, if it find that certain candidate word and context form phrase collocation, just the priority of this candidate word can be improved.
Secondly, system is it is contemplated that word statistics word frequency in this language, and word frequency is the highest, then probability of occurrence is the biggest, and therefore priority is more
High.Additionally, when candidate word length is equal or close to user key-press number of times, the priority of this word can be enhanced.If certain
Contain error correction character in candidate word, then its priority can reduce.In a kind of preferred embodiment, final priority can
Obtain to calculate after being weighted by many factors.
Returning to Fig. 4, candidate word list is shown to user by output module 406.In certain embodiments of the present invention, for having
The candidate word of related term, can mark with special state, and definable one shortcut allows user enter into this word related term
Selection pattern.For example, referring to Fig. 2 A, there is an arrow lower section of word " compare ", represents and have found the relevant of it
Word list.User can enter related term in " compare " upper slide downward contact and select pattern.In certain embodiments of the present invention
In, for error correction candidate word, can be with different format identification (FID)s to show differentiation.
According to one embodiment of the present of invention, when user confirm certain candidate word and be input to text filed after, candidate region
By next for display or multiple words being likely to occur.With reference to Fig. 2 C, when after user's input " look ", candidate region occur under
The prediction " forward to " of word, " at ", " into ", " for ".This is the context relation rule due to word object " look "
In have phrase arrange in pairs or groups " look forward to ", " look at ", " look into " and " look for ".When user confirms candidate word " look "
After, candidate word module 404 finds out these rules from the context relation rule of this word, and by " look " part below
Show in candidate region as candidate word.
According to one embodiment of the present of invention, when user confirm certain candidate word and be input to text filed after, its related term
Phrase collocation may also appear in candidate region.With reference to Fig. 2 D, when after user's input " I ' m looking ", candidate word region
Prediction " forward to " to lower word, " at ", " into ", " for " also can occur.This is due at word object " looking "
Related words list in have " look ", and candidate word module can find out in the context relation imputation that related term is corresponding correspondence short
Language is arranged in pairs or groups, and shows in candidate region.
Figure 10 describes the method for the realized live keyboard layout to electronic equipment input text designed by the present invention, tool
Standby following steps: wait user input signal (step 1001)；User input signal is converted to one according to current keyboard layout
Individual character set, described character set comprises the possible corresponding character (step 1002) of described user input；By described character
Set adds current input sequence (step 1003)；According to described current input sequence, generate candidate word and sort by priority
(step 1004)；Show described candidate word (step 1005).
3. the switching of layout and dynamically adjustment
Designing because of keyboard layout flexibly, the keyboard system of the present invention can change keyboard layout at any time and not affect method
Realize and user uses.
According to certain embodiments of the present invention, user can pass through certain predefined operation, be switched at any time by keyboard layout.Example
As, on the touchscreen, when user is at the quick passing contact of keyboard area, system just can dynamically by current arrangements by such as scheming
QWERTY layout shown in 1A switches to AZERTY layout as shown in Figure 1 C.On the equipment with hardware keyboards,
When user presses certain shortcut, system too can be with switching at runtime keyboard layout.
According to certain embodiments of the present invention, in the handoff procedure of keyboard layout, can make switching more by animation effect
Natural.For example, referring to Figure 11 A, when the finger keyboard area on the touchscreen of user the most quickly moves, old
Keyboard layout is the most mobile to fade out, and new keyboard layout the most smoothly moves from screen left end and fades in.Figure 11 B
Describing at finger in moving process, old keyboard layout 1102 is moved out to half, and new keyboard layout 1103 moves into half
Time situation.Figure 11 C describes the situation after new keyboard layout is moved fully into.In the present embodiment, animation effect is permissible
Carrying out glibly, and translational speed can determine according to the translational speed of user contact, keyboard layout is by user to allow user feel
Finger moves.
Figure 12 describes a kind of method 1200 being switched fast keyboard layout in the present embodiment, comprises the steps of in band sense of touch
A keyboard layout (step 1201) is shown on display device；Wait the action (step that user contact is moved on the touchscreen
1202)；By original keyboard layout along contact moving direction removal screen (step 1203)；New keyboard layout is moved along contact
Dynamic direction moves into screen (step 1204).
The keyboard layout of this method indication not only represents the different layouts of letter, it is possible to broadly refer to for certain in pages content
One page.Such as, selecting have multipage to select on the page at symbol, user can carry out page turn over operation by this method.
According to certain embodiments of the present invention, user can also dynamically change the layout of keyboard, as changed the position etc. of button.
Such as, in figure 13a, do not put when user presses " SPACE " space bar 1301, and dragged to a left side for keyboard area
Decontroling after inferior horn, this key has just been arranged at new position 1302 as shown in Figure 13 B.Keyboard layout can be updated accordingly simultaneously,
Such as originally, the numeral " 8 " on space bar has become numeral " 6 ", to keep the seriality of numeral.
Figure 14 describes a kind of method of dynamic change keyboard layout in the present embodiment, comprises the steps of the display in band sense of touch
Multiple button (step 1401) is shown on equipment；Detect current collector action (step 1402) after user presses on a button；
Detection user decontrols the position (step 1403) of contact；Adjust keyboard layout, described button is adjusted to described relieving contact
Position corresponding to position, and show the keyboard layout (step 1404) of renewal.
For step 1402, can preset some key is moveable key, sets some key as immovable key.Such as,
In Figure 13 A, " SPACE " key is moveable key, and other buttons are immovable building.
For step 1404, the position after button adjusts often can be on some the predefined position decontroling near contact position.
Such as, when user decontrol the position of contact fall " SPACE " key is covered in Figure 13 B region or about distance be less than
In the range of X pixel time (X can be a predetermined value), after corresponding adjustment position be the screen lower left corner by key mapping
Put.
Claims (22)
1. the method being used for electronic equipment input text, it is characterised in that including:
Detection user's input and current keyboard layout parameter；
According to current keyboard layout parameter, obtaining and input, with described user, the character set being associated, described character set includes using
Possible corresponding all or part of character of family input；
Described character set is added current input sequence；
For at least one character at least one character set in described current input sequence, find downwards from dictionary root node
To the node associated by described character；
Candidate word list is constituted according to described associated nodes；
Show described candidate word；
Described searching downwards to the node associated by described character from dictionary root node includes: whether the node to described association is single
Word node judges, when the node of described association is word node, the character string of the node of described association is candidate word；
And whether the node to described association is that non-existent node judges, when the node of described association is non-existent node,
Get rid of the combination of all character strings comprising this associated nodes character string.
2. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that the node of described association
The sequence node that character string is the path institute approach reaching down to described word node from root node.
3. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described word node
Character string is a word in dictionary.
4. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described non-existent joint
The character string of point does not exists in dictionary.
5. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described dictionary i-th layer
Node be associated with word i-th bit character in dictionary.
6. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described dictionary becomes tree-shaped
Structure, wherein, at least the nodes of a layer is more than or equal to 26.
7. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described detection user's
Input includes: record user is by the start position of lower contact, the relieving final position of contact, the track of current collector and keeps touching
The time of staying of point.
8. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described detection user's
Input includes: the input of detection user is upper shifting, move down, move to left, move to right, upper left is moved, upper right is moved, lower-left is moved, bottom right is moved,
Long by, double-click and click.
9. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described layout parameter bag
Include the position of each button, size and character definition in current keyboard.
10. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described layout parameter
Character group including the corresponding input of the action that user is different.
11. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described basis is current
The character set that keyboard layout parameter acquiring is associated with user's input includes: when at least one parameter in described layout parameter is sent out
During raw renewal, obtain the character set of described association according to the layout parameter after updating.
12. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described basis is current
The character set that keyboard layout parameter acquiring is associated with user's input includes: according to user's input and current keyboard layout parameter,
The character set being associated with described user input is adjusted dynamically.
13. as claimed in claim 12 for the method to electronic equipment input text, it is characterised in that described according to user
The character set being associated is adjusted and includes by input dynamically: when user carries out different operating on a button, according to
Current keyboard layout parameter, it is thus achieved that the character set being associated with described operation.
14. as claimed in claim 12 for the method to electronic equipment input text, it is characterised in that described basis is current
The character set that keyboard layout parameter acquiring and user input is associated includes: different according to user's input, described character set
Including at least one in letter, the correlation form of letter, numbers and symbols or combination.
15. as claimed in claim 14 for the method to electronic equipment input text, it is characterised in that the pass of described letter
Connection form includes patterns of capitalization and the accented characters of letter.
16. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described character set
Comprise following one or more: Indistinct Input character group, accurately input character group, error correction input character group.
17. as claimed in claim 16 for the method to electronic equipment input text, it is characterised in that described error correction inputs
Character group includes currently setting the character corresponding at least one button in the range of error correction.
18. as claimed in claim 17 for the method to electronic equipment input text, it is characterised in that described current setting
Error correction scope is arranged by error correction or user determines.
19. as claimed in claim 18 for the method to electronic equipment input text, it is characterised in that described error correction scope
Comprise user and be currently entered the button of button periphery.
20. as claimed in claim 19 for the method to electronic equipment input text, it is characterised in that pressing of described periphery
Key comprises following one: the adjacent button in all adjacent buttons, neighbouring button, left and right, be separated by two alphabetical
Button.
21. as claimed in claim 1 for the method to electronic equipment input text, it is characterised in that described composition candidate
Word list includes: according to certain rule, candidate word is carried out prioritization.
22. as claimed in claim 21 for the method to electronic equipment input text, it is characterised in that described certain rule
Including: word frequency, context phrase, related term, alternative form and error correction are arranged.
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| CN201310079031.6A CN103135786B (en) | 2008-04-18 | 2008-04-18 | For the method to electronic equipment input text |
| CN2008100363029A CN101266520B (en) | 2008-04-18 | 2008-04-18 | System for accomplishing live keyboard layout |
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| CN104461042B (en) * | 2013-09-16 | 2017-12-26 | 百度在线网络技术（北京）有限公司 | Based on the Japanese input method and system for retracting key and carrying out automatically error correction |
| CN104111738A (en) * | 2014-06-06 | 2014-10-22 | 珠海市魅族科技有限公司 | Character association method and terminal |
| CN106468960A (en) * | 2016-09-07 | 2017-03-01 | 北京新美互通科技有限公司 | A kind of method and system of candidates of input method sequence |
| WO2018157372A1 (en) * | 2017-03-03 | 2018-09-07 | 小天才科技有限公司 | Method and device for vocabulary memorization |
| CN108829267A (en) * | 2018-05-24 | 2018-11-16 | 努比亚技术有限公司 | A kind of vocabulary recommended method, equipment and computer can storage mediums |
| CN110187779A (en) * | 2019-05-30 | 2019-08-30 | 努比亚技术有限公司 | A kind of input method of full keyboard, device, wearable device and storage medium |
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