CN101776965B - Method and system for dynamically studying input characteristics of software keyboard - Google Patents
Method and system for dynamically studying input characteristics of software keyboard Download PDFInfo
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Abstract
The invention relates to method and system for dynamically studying the input characteristics of a software keyboard. The method comprises the following steps of: (a) receiving input; (b) judging whether the input is normal keying input or not; (c) storing the input numerical value of the input when judging that the input is the normal keying input; (d) repeating the steps (a) to (c) until N+1 input numerical values are stored, wherein N is a positive integer; and (e) deciding the input characteristics of the No. M input before the No. N+1 input according to the input numerical value of the No. M input before the No. N+1 input when the N+1 input numerical values are stored, wherein M is equal to N.
Description
Technical field
The method and system of the relevant a kind of dynamically studying input characteristics of software keyboard of the present invention, and particularly relevant a kind of the utilization postpones the method and system that study comes dynamically studying input characteristics of software keyboard.
Background technology
On handheld device, the software keyboard of touch is commonly used in the man-machine interface as the input data, and the software keyboard of touch is on picture, to draw button with the mode of software.But because the custom of user's button is different; Maybe be because used finger be different when individual parallax, button, the mode or the not first-class factor of direction of gripping device; And the key position of drawing has different errors on the drop point when making touch-control and the picture; This can make why software keyboard can't correctly judge button that the user really desires to press, and causes input error.
Therefore, in order to promote the coordinate judgment accuracy of input, a kind of way is through software the user to be provided so-called " training mode ", through letting software in training mode " study in advance " user's operating characteristics, to set up the correction data that the coordinate correction is used.Yet; The shortcoming of this way is; When the behavior change of user operation, or the operating characteristics that is adopted during with training mode (for example do not change the right-hand man or the operation of substituting) not simultaneously, and this correction data promptly can lose calibration result; Need the user to carry out the correction program of training mode again, collect user's correction data again.
Therefore, need a kind of new dynamic study method of design to improve above-mentioned shortcoming.
Summary of the invention
Therefore the method and system that the purpose of this invention is to provide a kind of dynamically studying input characteristics of software keyboard; Must not establish behavior or the operating characteristics that training mode is learnt the user in advance in addition, can dynamic learning and self-adaptation along with the change of user's behavior or operating characteristics.
According to an aspect of the present invention, the method for dynamically studying input characteristics of software keyboard may further comprise the steps: (a) receive input; (b) judge whether input is general button input; (c) when judging that this is input as general button input, store the input value of this input; (d) repeating step (a)-(c) is stored up to the input value of N+1 pen input, and wherein N is a positive integer; And (e) when the input value of N+1 pen input has been stored, determine the input feature vector of N+1 pen input M pen input forward, wherein M=N according to input value with respect to N+1 pen input M pen input forward.
According to a further aspect of the invention, the system of dynamically studying input characteristics of software keyboard comprises: receiver module, in order to receive an input; Storage element is in order to store the input value of this input; Whether the input determination module is general button input in order to judge input; Insert module, when judging that when the input determination module this is input as general button input, the input value of this input is inserted storage element; And characteristic decision-making system; When reaching the input value of N+1 pen input when this storage unit stores; According to the input feature vector of importing this M pen input forward with respect to this N+1 pen of input value decision of N+1 pen input M pen input forward, wherein N is a positive integer and M=N.
Description of drawings
For let above and other objects of the present invention, characteristic, advantage can be more obviously understandable, below conjunction with figs. is elaborated to preferred embodiment of the present invention, wherein:
Fig. 1 is the method flow diagram that illustrates according to a kind of dynamically studying input characteristics of software keyboard of one embodiment of the invention.
Fig. 2 illustrates the synoptic diagram that postpones dynamic learning according to the 1-key of one embodiment of the invention.
Fig. 3 A illustrates the synoptic diagram that postpones dynamic learning according to the 2-key of one embodiment of the invention.
Fig. 3 B is the synoptic diagram that illustrates according to the annular data queue of one embodiment of the invention.
Fig. 4 is the system block diagrams that illustrates according to a kind of dynamically studying input characteristics of software keyboard of one embodiment of the invention.
Embodiment
Next please with reference to the detailed description of the embodiment of the invention, the example of wherein being mentioned can together describe together with accompanying drawing.In the case of any possible, employed same numeral has all been represented identical or similar elements in accompanying drawing and the explanation.
At first, what it should be noted that is that the problem that can derive after the independent correction program is carried out in cancellation in advance.When carrying out correction program in advance, the user can need the button according to the picture indication, in software keyboard, presses corresponding button.Therefore; Accomplish so-called " training mode " afterwards; Correction program has utilized the data that obtained, the input feature vector when the decision user utilizes the software keys input, and when the user presses identical button next time; This input feature vector capable of using proofreaies and correct in advance this software keys input, touches the accuracy by this software keys to improve the user.
But; To generally import the correct input value of dynamic collection in the process of data the user because the objective of the invention is; So the matter of utmost importance that faces is exactly before the user pushes button, collects the program of input value and do not know which the key that the user will correctly press instantly is.When obtaining certain touch-control coordinate (x of user
i, y
i) time, if picture shows that the key that the user presses is certain key ' K ',, have no way of learning (the x that the user pressed at that time because do not carry out " training mode " in advance
i, y
i) be to hope to push button ' K ' whether just like what picture showed, so also have no way of learning as (the x that time receive
i, y
i) whether can be used as the correct input value of button ' K '.
Therefore; Dynamically studying input characteristics of software keyboard of the present invention is to adopt the notion that postpones study; Not in button and the characteristic pressed as the user that makes decision, postpone 1 key, postpone 2 keys or postpone the more way of multikey and adopt, can be referred to as " the N-key postpones dynamic learning ".Its fundamental purpose is more effectively to collect input value, more correctly to judge input feature vector.There has been correct input feature vector correctly to proofread and correct to software keys input.
With reference to Fig. 1, it is the method flow diagram that illustrates according to a kind of dynamically studying input characteristics of software keyboard of one embodiment of the invention.The method comprises following steps (should be appreciated that mentioned in the present embodiment step except that chatting bright its order person especially, all can be adjusted its front and back order according to actual needs, even possibility while or part execution simultaneously):
(1) receives an input (step 104).With regard to each input, the touch-control coordinate when one group of input value that can receive includes key value and button and is pressed, for example < ' S ', (101,42) >, drop point XY coordinate of this expression user touch-control be (101,42), the button that program is exported is ' S '.
(2) judge whether input is general button input (step 106).General button input wherein can be character, for example English alphabet, numeral or punctuation mark.
(3) when judgement is input as the input of general button, aforesaid input value is inserted storage element (step 108).Storage element can a kind of data structure, and for example annular data queue (circular queue) stores input value.Go back at this whether the decidable input is delete function (step 105), when judgement is input as delete function,, for example finishing touch is deposited in the input value deletion of annular data queue input value deletion (step 107) stored in the storage element.
(4) judge whether the input value of N+1 pen input is inserted storage element, wherein N is a positive integer (step 110).If next step then continues; If not, then repeating step 104-108 inserts storage element up to the input value of the N+1 pen being imported.In one embodiment, if the data structure in the storage element when having the annular data queue of N+1 element (element), is understood repeating step 104-108 up to annular data queue is filled up.
(5) when the input value of N+1 pen input being inserted storage element, according to input value decision input feature vector, wherein M=N (step 112) with respect to N+1 pen input M pen input forward.In one embodiment; If data structure is annular data queue; Can establish a front end and/or a rear end; When annular data queue expires, look set front end (head) or rear end (rear) and decide, according to the input value decision that is positioned at front end or rear end with respect to the input feature vector of N+1 pen input M pen input forward with the generation results of learning.
(6) from the input value (step 114) of storage element deletion with respect to N+1 pen input M pen input forward.This step is with the data deletion of having learnt; For instance; When N is made as 1, that is so-called " delay of 1-key ", can be in step 112 according to the input feature vector that decides the 2nd input the 1st input forward with respect to the input value of the 2nd input the 1st input forward.Afterwards, deletion is with respect to the input value of N+1 pen input M pen input forward.In one embodiment,, look set front end or rear end and decide, delete the input value that is positioned at front end or rear end if data structure is annular data queue.
(7) repeating step 104-114.
Next one example implementing procedure will be described.With reference to Fig. 2, it is to illustrate the synoptic diagram that postpones dynamic learning according to the 1-key of one embodiment of the invention.On Algorithm design; Can use various suitable data structures and reach the effect of saving storage space or improving arithmetic speed; At this is the annular data queue (circular queue) that uses an inside; Each stored group input value of this data queue the inside comprises the touch-control coordinate a when key value and this button are pressed, and can be expressed as<key value, (X
i, Y
i)>For example < ' S ', (101,42) >, the drop point XY coordinate of this expression user touch-control is (101,42), the button of program output is ' S '.
In this embodiment; Suppose that the user will import ' Good ', but but when desiring to press second ' o ', but make calling program export ' p ' because the drop point potential range ' p ' of touch-control is nearer; The user supresses backspace key ' ← ' afterwards; Input ' o ' again, and last letter ' d ' then, as shown in Figure 2.
(1) is made as 1 at N; Be that the 1-key postpones under the situation of dynamic learning, when the user presses first key ' G ', judge that this is general button input; And relevant input value is inserted storage element; But can not decide the input feature vector of letter ' G ' immediately according to < ' G ', (100,45)>this group input value.
(2) when the user imports second key ' o '; Judge that this is general button input, and its input value is inserted storage element, can determine input feature vector this moment with respect to this input the first stroke input (being last input) forward; Just according to input value < ' G '; (100,45)>decide the input feature vector of letter ' G ', to reach the effect of study.The method is to utilize the character of user's second key input to judge whether the input of first key is the desired input of user; If second key is general button input; The desired input of the input person of being to use of ordinary representation first key; If second key is other input for example is control such as backspace key or directionkeys buttons, ordinary representation the input of first key be not to use the desired input of person.
In the present embodiment, so-called input feature vector can for example not be to use the person to touch the coordinate offset direction and the coordinate offset amount of this software keys.For example; If button ' G ' preset origin in software keyboard is (100; 50), but because the input value of the aforementioned letter of foundation ' G ', the coordinate of user's touching is (100; 45), so can judge that the input feature vector of user when input alphabet ' G ' is the displacement of 5 coordinate figures of Y direction.Therefore; After the input feature vector that has determined letter ' G ' according to input value < ' G ', (100,45) >; Can the origin of button ' G ' in software keyboard be carried out a little correction towards the Y direction; So, the success ratio of touching by button ' G ' after the user can improve, more can other button of false touch.
(3) when the user imports triple bond ' p '; Be judged as general button input, and the input value that it is relevant is inserted storage element, can determine the input feature vector of last input this moment; Just according to < ' o '; (190,30)>this group input value decides the input feature vector of letter ' o ', to reach results of learning.
(4) when the user imports quadruple linkage ' ← ', be judged as and be not the input of general button, but be used for revising the delete function of last button input; Therefore the input value of last input can be rejected; Just < ' p ', (200,32)>this input value is deleted from storage element.
(5) when the user imports the 5th key ' o ', be judged as general button input, therefore with last effective input (second key; Promptly this moment < ' o ', (195,35)>one group of input value before in storage element); Just according to < ' o '; (190,30)>this group input data decide the input feature vector of letter ' o ', to reach the effect of study.
(6) when the user imports the 6th key ' d ', be judged as general button input, therefore can determine the input feature vector of last input; Just according to < ' o '; (195,35)>this group input value decides the input feature vector of letter ' o ', to reach the effect of study.
Next another example implementing procedure will be described.With reference to Fig. 3 A and Fig. 3 B, Fig. 3 A illustrates the synoptic diagram that postpones dynamic learning according to the 2-key of one embodiment of the invention, and Fig. 3 B is the synoptic diagram that illustrates according to the annular data queue of one embodiment of the invention.
In this embodiment, suppose that the user will import ' Gets ', but but find input error afterwards in input ' Goy ', the user has pressed secondary backspace key (delete function) ' ← ' afterwards, and input ' ets ' is then accomplished input, shown in Fig. 3 A.
(1) is made as 2 at N; Be that the 2-key postpones under the situation of dynamic learning, when the user presses first key ' G ', be judged as general button input; And with its input value < ' G '; (100,45)>insert annular data queue, but can not decide the input feature vector of letter ' G ' immediately according to this group input value.
(2) when the user imports second key ' o ', be judged as general button input, and its input value < ' o ', (190,30)>is inserted annular data queue, but can not decide the input feature vector of letter ' o ' immediately according to this group input value.
(3) when the user imports triple bond ' y ', be judged as general button input, and its input value is inserted annular data queue; This moment, annular data queue was full, therefore will determine the input feature vector of second input forward, just according to < ' G '; (100,45)>this group input value decides the input feature vector of letter ' G ', to reach the function of study; And with < ' G ', (100,45)>this group input value delete from annular data queue.
(4) when the user imports quadruple linkage ' ← ', be judged as and be not the input of general button, but be used for revising the delete function of last button input; Therefore the input value of giving up last input ' y '; Just < ' y ', (200,32)>this group input value is deleted from annular data queue.
(5) when the user imports the 5th key ' ← ', be judged as and be not the input of general button, be to be used for revising last button input; Therefore the input value of giving up last input ' o '; Just < ' o ', (190,30)>this group input value is deleted from annular data queue.
(6) when the user imports the 6th key ' e ', be judged as general button input, and its input value < ' e ', (83,48)>is inserted annular data queue, but can not decide the input feature vector of letter ' e ' immediately according to this group input value.
(7) when the user imports the 7th key ' t ', be judged as general button input, and its input value < ' t ', (110,50)>is inserted annular data queue, but can not decide the input feature vector of letter ' t ' immediately according to this group input value.
(8) when the user imports the 8th key ' s ', be judged as general button input, and its input value is inserted annular data queue; This moment, annular data queue was full, therefore will determine the input feature vector of second input forward, just according to < ' e '; (83,48)>this group input value decides the input feature vector of letter ' e ', to reach the function of study; And with < ' e ', (83,48)>this group input value delete from annular data queue.
With reference to Fig. 4, it is the system block diagrams that illustrates according to a kind of dynamically studying input characteristics of software keyboard of one embodiment of the invention.This system comprises: receiver module 412, storage element 414, input determination module 416, insert module 418, characteristic decision-making system 420 and first removing module 422.Receiver module 412 is in order to receive the input value of an input.The input value that receiver module 412 is received comprises key value and touch-control coordinate, for example < ' S ', (101,42) >.Storage element 414 is in order to store this group input value.Input determination module 416 is in order to judge whether this input is general button input.Input determination module 416 can comprise character determination module 417, is used to be input as when general button is imported to judge whether the key value of this input is a character, for example letter, numeral or punctuation mark.Input determination module 416 also can comprise delete function determination module 419, is used to import when not importing for general button, judges whether this input is delete function.Insert module 418 and can comprise second removing module 425, can be in order to the data in the deletion storage element 414.
When input determination module 416 judged that this is input as general button input, inserting module 418 was to insert storage element 414 in order to the input value that will import.When delete function determination module 419 judges that this is input as delete function, second removing module 425 can the deletion storage element 414 stored input values, for example deletion is deposited in the input value of storage element 414 at last.Storage element 414 can a data structure store input value, for example annular data queue (circular queue) or other suitable data structure.When inserting module 418 and the input value of N+1 pen input inserted storage element 414; Characteristic decision-making system 420 is the input feature vectors that decide N+1 pen input M pen forward to import in order to according to the input value with respect to N+1 pen input M pen input forward, and wherein N is a positive integer and M=N.First removing module 422 is input values of importing with respect to N+1 pen input M pen forward in order to from storage element 414 deletions.
Wherein receiver module 412, input determination module 416 and insert module 418 and can repeat to operate up to the input value of N+1 pen input being inserted storage element 414; The input feature vector that characteristic decision-making system 420 meetings this moment decide N+1 pen input M pen forward to import according to the input value with respect to N+1 pen input M pen input forward; And first removing module 422 can deletion after characteristic decision-making system 420 has operated with respect to the input value of N+1 pen input M pen input forward, make receiver module 412, input determination module 416 and insert that module 418 (the frame of broken lines part among the figure) beginning is aforesaid to repeat running.
In addition; When setting N big or small, can consider following discussion: N is more little; Data can be filled up circle queue more soon, and input feature vector can be learnt by native system more soon, and promptly pace of learning is very fast; So user's behavior or operating characteristics are if change to some extent, and the present invention can dynamic learning and self-adaptation in the shorter time.
N is big more; Pace of learning is slow more; Data can be filled up circle queue more slowly, before input feature vector is learnt by native system, if the user has one or several continuous button corrective actions to button; All also have an opportunity to delete data from circle queue, let inappropriate input feature vector be corrected the chance that systematic learning gets up and reduce.
In sum, the method and system of the dynamically studying input characteristics of software keyboard that is disclosed in the previous embodiment, the calibration procedure that does not need the user to operate a cover in advance can begin to import data.The input feature vector that native system is learnt can further be used for predicting or the touch-control drop point input when revising following user and importing same character; Need not set up the coordinates correction data in advance through extra stand-alone program; Can reach the effect of coordinates correction, improve the accuracy that button is judged.In the process of user's input, if user's behavior or operating characteristics change to some extent, also can dynamic learning and self-adaptation along with this change.
Though the present invention discloses as above with embodiment; Yet it is not in order to limit the present invention; Anyly be familiar with this operator; Do not breaking away from the spirit and scope of the present invention, when can doing various changes that are equal to or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (5)
1. the method for a dynamically studying input characteristics of software keyboard is characterized in that, comprises following steps:
(a) receive an input, wherein the input value of this input comprises the key value and the touch-control coordinate of this input;
(b) judge whether this input is a general button input, and wherein this general button is input as a character;
(c) when judging that this is input as this general button input, store the input value of this input;
(d) repeating step (a)-(c) is stored up to the input value of N+1 pen input, and wherein N is a positive integer;
(e) when the input value of N+1 pen input has been stored; According to the input feature vector of importing this M pen input forward with respect to the input value decision of N+1 pen input M pen input forward with respect to this N+1 pen; Wherein M=N, and this input feature vector comprises a coordinate offset direction and a coordinate offset amount; And
(f) deletion is with respect to the input value of this N+1 pen input this M pen input forward.
2. method according to claim 1 is characterized in that, also comprises following steps:
Judge whether this input is a delete function; And
When judging that this is input as this delete function, the input value that deletion has stored, the input value of wherein being deleted is in the middle of the input value that is stored, the input value that is stored at last.
3. the system of a dynamically studying input characteristics of software keyboard is characterized in that, comprises:
One receiver module, in order to receive an input, wherein the input value of this input comprises the key value and the touch-control coordinate of this input;
Whether one input determination module is a general button input in order to judge this input, and wherein this general button is input as a character;
One inserts module, when judging that when this input determination module this is input as this general button input, stores the input value of this input;
One characteristic determination module; When being stored in order to input value when the input of N+1 pen; According to the input feature vector of importing this M pen input forward with respect to the input value decision of N+1 pen input M pen input forward with respect to this N+1 pen; Wherein N is a positive integer and M=N, and this input feature vector comprises a coordinate offset direction and a coordinate offset amount; And
One first removing module is in order to the input value of deletion with respect to this N+1 pen input this M pen input forward.
4. system according to claim 3; It is characterized in that this input determination module comprises a delete function determination module, in order to judge whether this input is a delete function; And this is inserted module and comprises one second removing module; In order to when this delete function determination module judges that this is input as this delete function, delete in the stored input value input value that is stored at last.
5. system according to claim 3 is characterized in that, stores the input value of this input with an annular data queue.
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