CN102156578B - Handwriting input method and handwriting input device of touch equipment and electronic equipment - Google Patents
Handwriting input method and handwriting input device of touch equipment and electronic equipment Download PDFInfo
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- CN102156578B CN102156578B CN 201110079720 CN201110079720A CN102156578B CN 102156578 B CN102156578 B CN 102156578B CN 201110079720 CN201110079720 CN 201110079720 CN 201110079720 A CN201110079720 A CN 201110079720A CN 102156578 B CN102156578 B CN 102156578B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
Abstract
The embodiment of the invention discloses a handwriting input method of touch equipment, relating to the technical field of an input method. The handwriting input method can ensure the continuity of handwriting input of a user and simplify the operation when multi-point touch equipment is used for mixed handwriting input. The handwriting input method of the touch equipment comprises the following steps of establishing a corresponding relationship between a touch mode and a recognition mode; obtaining the touch operation information of the user and determining the touch mode under the handwriting input state of the touch equipment; obtaining the recognition mode corresponding to the touch mode; recognizing the handwriting input track extracted from the touch operation information according to the touch mode and the corresponding recognition mode; and displaying the recognition result corresponding to the handwriting input track. The embodiment of the invention is mainly used for a handwriting input technology.
Description
Technical field
The present invention relates to input method technique field, relate in particular to a kind of hand-written inputting method and device and electronic equipment of touch apparatus.
Background technology
Along with the development of multiple point touching technology, multiple point touching equipment begins to popularize rapidly, but the multi-touch function on these multiple point touching equipment only only limits to amplify reduction capability, fully is not applied in the middle of the writing technology.
In the prior art, hand-writing input method on the multiple point touching equipment is when the mixing input that realizes various literal and punctuation mark, often continue the mode of single-point touches input, specifically can be divided into following two types: a kind of is that character to be entered is divided into different recognition mode (as: Chinese character, English alphabet, numeral and punctuation mark etc.), and at the panel of input method the function key corresponding with each recognition mode is set, to switch different recognition modes.Such as, if the user selects the punctuation mark function key, input method will switch to the punctuation mark status recognition, input method will be according to punctuation mark pattern-recognition input person's handwriting under this pattern.In this manner, the user need to singly refer to repeatedly the click function key with the switching recognition mode, thereby has affected the continuity of user's handwriting input; Another is to set up soft keyboard in input method, and the user is by clicking the soft keyboard realization to the input of punctuation mark.This mode can take screen display space and program resource concerning some embedded devices, also increased the complicacy of user's operation simultaneously.
Summary of the invention
The embodiment of the invention provides a kind of hand-written inputting method and device of touch apparatus, with when utilizing touch apparatus mixing handwriting input, guarantees the continuity of user's handwriting input, and simplifies the operation.
The embodiment of the invention adopts following technical scheme:
A kind of hand-written inputting method of touch apparatus comprises:
Touch apparatus the handwriting input state under, obtain user's touch operation information and definite touch manner;
Obtain recognition mode corresponding to described touch manner;
Identify the handwriting input person's handwriting that from described touch operation information, extracts according to described touch manner and described recognition mode, and show recognition result corresponding to described handwriting input person's handwriting.
A kind of hand input device of touch apparatus comprises:
The touch manner recognition unit is used for obtaining user's touch operation information under the handwriting input state of touch apparatus, and definite touch manner;
Touch resolution unit, be used for obtaining recognition mode corresponding to described touch manner;
The track identification unit is used for identifying the handwriting input track that extracts from described touch operation information according to described touch manner and corresponding recognition mode, and shows recognition result corresponding to described handwriting input track.
Can find out by above description, in embodiments of the present invention, when utilizing touch apparatus mixing handwriting input, obtain user's touch operation information, and definite touch manner, obtain corresponding recognition mode by touch manner, then identify described user's handwriting input person's handwriting according to described touch manner and corresponding recognition mode, and show the recognition result that this handwriting input person's handwriting is corresponding.Thereby, utilize method and the device of the embodiment of the invention, when mixing handwriting input, need not frequently the handoff functionality key switching recognition mode, thereby guaranteed the continuity of user's handwriting input; Simultaneously, also need not to set up the soft keyboard realization to the input of punctuation mark, thereby simplified user's operation.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done a simply introduction during the below will describe embodiment, apparently, accompanying drawing in the following describes only is the part accompanying drawing of some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the hand-written inputting method process flow diagram of the touch apparatus of the embodiment of the invention one;
Fig. 2 is the schematic diagram of the mode of single-point touches in the embodiment of the invention one;
Fig. 3 is the schematic diagram of the mode of 2 touches in the embodiment of the invention one;
Fig. 4 is the another schematic diagram of 2 touch manners in the embodiment of the invention one;
Fig. 5 is the schematic diagram of the hand input device of the embodiment of the invention two touch apparatus;
Fig. 6 is the schematic diagram of touch manner recognition unit in the embodiment of the invention two;
Fig. 7 is the structural drawing of the hand input device of touch apparatus in the embodiment of the invention two;
Fig. 8 is the schematic diagram of track identification unit in the embodiment of the invention two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
In order to realize when utilizing touch apparatus mixing handwriting input, guarantee the continuity of user's handwriting input, and simplification user's operation, in the hand-written inputting method of the touch apparatus of the embodiment of the invention, under the handwriting input state of touch apparatus, obtain user's touch operation information, and definite touch manner, recognition mode corresponding to described touch manner then obtained.Identify the handwriting input person's handwriting that from described touch operation information, extracts according to described touch manner and corresponding recognition mode again, and show recognition result corresponding to described handwriting input person's handwriting.
In embodiments of the present invention, when utilizing touch apparatus mixing handwriting input, obtain user's touch operation information, and definite touch manner, obtain corresponding recognition mode by touch manner, then identify described user's handwriting input person's handwriting according to described touch manner and described recognition mode, and show recognition result corresponding to handwriting input person's handwriting.Thereby, utilize the method for the embodiment of the invention, when mixing handwriting input, need not frequently the handoff functionality key switching recognition mode, thereby guaranteed the continuity of user's handwriting input; Simultaneously, also need not to set up the soft keyboard realization to the input of punctuation mark, thereby simplified user's operation.
As shown in Figure 1, the hand-written inputting method of the touch apparatus of the embodiment of the invention one may further comprise the steps.
Wherein, described recognition mode comprises Chinese mode, punctuation mark pattern, English alphabet mode etc.; Described touch manner comprises: single-point touches and multiple point touching.
In this embodiment, a plurality of contacts can be set, be respectively: the first contact, the second contact ... with the N contact.Wherein, described the first contact, the second contact ... can be arranged on optional position in the display screen of multiple point touching equipment with the N-1 contact, and keep motionless, described N contact is used for that display screen at multiple point touching equipment provides writes zone written character person's handwriting, wherein, the described zone of writing can be limited zone, also can be whole display screen, and the embodiment of the invention is not done restriction to this.Wherein the concrete value of N can according to how many arbitrarily settings of input pattern, and preferably, N is the positive integer less than or equal to 10.
And, in embodiments of the present invention, single-point touches and multiple point touching are defined as follows:
A single-point touches i.e. point touches, and its touch method is " only writing written character person's handwriting in the zone with a finger what the display screen of multiple point touching equipment provided ".
Multiple point touching comprises that two points touch, and three points touch ... N some touches etc., wherein the value of N can be got the integer more than or equal to 2.For example, the touch method that two points touch be that " with two finger contact touch-screens; behind the optional position on the touch-screen of one of them finger contact multiple point touching equipment; do not leave touch-screen; also in the touch-screen movement, another points then the written character person's handwriting in the zone of writing that touch-screen at multiple point touching equipment provides.By that analogy, the touch method that N point touches be " behind the optional position on the touch-screen of N-1 finger contact multiple point touching equipment; do not leave touch-screen, also do not move at touch-screen, N touch-screen of pointing at multiple point touching equipment provides writes written character person's handwriting in the zone ".
In concrete the application, can in program, be defined as follows recognition mode according to concrete needs, for example:
#define Chinese 0x0001 // Chinese character
#define Punctuation 0x0002 // punctuation mark
#define Alphabet 0x0004 // English alphabet
As shown in Figure 2, be the schematic diagram of the mode of single-point touches.For the mode that two points touch, the user can finish handwriting input by the mode of one-handed performance or bimanualness.As shown in Figure 3, the user with hand touch the written character fullstop "." time, one of them the finger a(on its same hand i.e. the first contact) optional position of touch screen and maintaining static, i.e. the second contact of another one finger b(on described the same hand) touch screen and written character person's handwriting.As shown in Figure 4, the user with two finger-touching writing question marks "? " the time, a finger c(on hand wherein i.e. the first contact) optional position of touch screen and maintaining static, an other finger d(on hand i.e. the second contact) touch screen and written character person's handwriting.
The recognition mode corresponding to combination of different numbers contact, can set up corresponding relation as shown in table 1 below:
Table 1
Wherein, described touch operation information comprises: the contact number that contacts with described multiple point touching equipment at one time, and the coordinate of each contact, glide direction etc., the moving coordinate of each contact has consisted of the sliding trace of this contact.
If only have a contact on the multiple point touching equipment at one time, the current touch manner of described multiple point touching equipment is single-point touches; If on the multiple point touching equipment plural contact is arranged at one time, the current touch manner of described multiple point touching equipment is multiple point touching.
According to table 1, if be single-point touches, current recognition mode is Chinese character; If be two somes touches under the multiple point touching, current recognition mode is punctuation mark; If be three somes touches under the multiple point touching, current recognition mode is English alphabet.
In multiple point touching input, the more touch manner of multiple spot and the corresponding relation of recognition mode can also be arranged, do not enumerate one by one at this.Can also according to the position relationship of a plurality of changeless contacts, set up the corresponding relation of more touch manner and recognition mode.
In this step, the touch-screen that at first obtains multiple point touching equipment drives the signal of each contact that receives.If current touch screen operating is in the handwriting input state, the signal of each contact that then will get access to is sent to hand-writing input method, processes otherwise the signal of each contact is sent to OS operating system.
In the process of carrying out the multiple point touching input, hand-writing input method can receive the signal of starting to write of a plurality of contacts, also can constantly receive be used to the sliding trace signal that carries out hand-written current collector, such as the coordinate sequence of the contact that changes, and show in real time the handwriting input track that the sliding trace by current collector consists of.When lifting pen action generation, hand-writing input method is received and is lifted a signal, begins identification.At first, in step 12, obtain touch operation information, described touch operation information comprises many group touch datas, can determine the coordinate, glide direction of number, each contact of contact etc. according to touch data, and the moving coordinate of each contact has consisted of the sliding trace of this contact.Number according to the contact is determined touch manner: single-point touches, multiple point touching.Then, in step 13, according to the touch manner that obtains in the step 12, obtain the recognition mode of current handwriting input person's handwriting.At last, when described touch manner is single-point touches, only has a current collector, with the sliding trace of this current collector as the handwriting input person's handwriting, the recognition mode corresponding according to described single-point touches, the handwriting input pen mark is identified, and shown recognition result corresponding to described handwriting input person's handwriting; When described touch manner is multiple point touching, the track of fixed contact in a plurality of contacts of filtering, extract the sliding trace of current collector in a plurality of contacts as the handwriting input person's handwriting, recognition mode according to step 13 acquisition, described handwriting input person's handwriting is identified, and shown the recognition result that this handwriting input person's handwriting is corresponding.
For example, when the user need to input Chinese character, as shown in Figure 2, and available finger writing Chinese characters on the screen of touch apparatus, the sliding trace of this finger is the handwriting input person's handwriting; When the user needs inputting punctuation mark, in the situation that do not switch recognition mode, available two fingers touch touch-screen simultaneously, wherein the position of a finger maintains static, do not frame out yet, an other finger writing punctuate, as shown in Figure 3 and Figure 4, the sliding trace of finger b and d is the handwriting input person's handwriting.Like this, not only can effectively avoid because switch recognition mode to the interrupting of user writing, and can guarantee well the accuracy identified, and simplify user's operation.
As shown in Figure 5, the embodiment of the invention two also provides a kind of hand input device of touch apparatus, comprising:
Touch manner recognition unit 51 is used for obtaining user's touch operation information under the handwriting input state of multiple point touching equipment, and definite touch manner; Touch resolution unit 52, be used for obtaining recognition mode corresponding to described touch manner; Track identification unit 53 is used for identifying the handwriting input track that extracts from described touch operation information according to described touch manner and corresponding recognition mode, and shows recognition result corresponding to described handwriting input track.
Wherein, described touch operation information comprises: the contact number that contacts with described multiple point touching equipment at one time, and the coordinate of each contact, glide direction etc., the moving coordinate of each contact has consisted of the sliding trace of this contact.
As shown in Figure 6, described touch manner recognition unit 51 can comprise: contact information acquisition module 511 is used for obtaining the at one time interior contact number that contacts with described multiple point touching equipment of user; Touch manner identification module 512 is used for determining the current touch manner of described multiple point touching equipment according to described contact number; Wherein, described touch manner comprises: single-point touches and multiple point touching.Wherein, the definition of described single-point touches and multiple point touching can be with reference to the description of preceding method embodiment.In addition, described contact information acquisition module obtain the user at one time in contact number that described multiple point touching equipment contacts in, also can obtain coordinate, sliding trace and the direction etc. of each contact, so that extract user's handwriting input track.
Wherein, described touch resolution unit 52 can specifically be used for: search the touch manner of in advance foundation and the corresponding relation of recognition mode according to described touch manner, obtain recognition mode corresponding to described touch manner.
In order further to improve user's experience, as shown in Figure 7, described device also can comprise: corresponding relation is set up unit 54, is used for setting up the corresponding relation of touch manner and recognition mode, and stores described corresponding relation.
As shown in Figure 8, described track identification unit 53 comprises: filter subelement 531, be used for when described touch manner is multiple point touching, the track of fixed contact in a plurality of contacts of filtering, the sliding trace of extraction current collector; Track identification subelement 532 is used for according to the recognition mode that obtains the sliding trace of current collector being identified as the handwriting input person's handwriting; Show subelement 533, be used for showing recognition result corresponding to described handwriting input person's handwriting.
That is to say, when described touch manner is single-point touches, the touch point is exactly unique current collector, do not need again the track of contact is carried out the filtering operation, the sliding trace of touch point is exactly the handwriting input person's handwriting, directly by track identification subelement 532 recognition mode corresponding according to described single-point touches, the handwriting input pen mark is identified, and by showing that subelement 533 shows user's recognition result corresponding to handwriting input person's handwriting.When described touch manner is multiple point touching, by the track that filters fixed contact in a plurality of contacts of subelement 531 filterings, extract the sliding trace of current collector as the handwriting input person's handwriting, by the recognition mode of track identification subelement 532 according to acquisition, described handwriting input person's handwriting is identified, and by showing that subelement 533 shows user's recognition result corresponding to handwriting input person's handwriting.
Can find out by above description, when utilizing multiple point touching equipment mixing handwriting input, obtain user's touch operation information, and definite touch manner, obtain corresponding recognition mode by touch manner, then identify the user's who from described touch operation information, extracts handwriting input person's handwriting according to described touch manner and described recognition mode, and show recognition result corresponding to handwriting input person's handwriting.Thereby, utilize the device of the embodiment of the invention, when mixing handwriting input, need not frequently the handoff functionality key switching recognition mode, thereby guaranteed the continuity of user's handwriting input; Simultaneously, also need not to set up the soft keyboard realization to the input of punctuation mark, thereby simplified user's operation.
The invention also discloses a kind of electronic equipment, comprise that the hand-written inputting method of the touch apparatus that above-described embodiment provides and the described electronic equipment of device are in electronic reader, panel computer, flat-panel monitor, the mobile phone any.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to control relevant hardware by computer program instructions to finish, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. the hand-written inputting method of a touch apparatus is characterized in that, comprising:
Under the handwriting input state of touch apparatus, obtain user's touch operation information, and definite touch manner; Wherein, described touch operation information comprises: the user is the interior contact number that contacts with described touch apparatus at one time, and the coordinate of each contact, and the coordinate that move each contact consists of the sliding trace of this contact; The described touch operation information of obtaining the user, and definite touch manner comprise: obtain the at one time interior contact number that contacts with described touch apparatus of user; Determine the touch manner that described touch apparatus is current according to described contact number, described touch manner comprises: single-point touches and multiple point touching;
Obtain recognition mode corresponding to described touch manner;
Identify the handwriting input track that from described touch operation information, extracts according to described touch manner and corresponding recognition mode, and show recognition result corresponding to described handwriting input track; Wherein,
When described touch manner is single-point touches, according to the recognition mode that obtains, the sliding trace of this contact is identified as the handwriting input track, and shown recognition result corresponding to described handwriting input track;
When described touch manner was multiple point touching, the track of fixed contact in a plurality of contacts of filtering according to the recognition mode that obtains, was identified the sliding trace of current collector, and is shown recognition result corresponding to described handwriting input track as the handwriting input track.
2. method according to claim 1 is characterized in that, in the described touch operation information of obtaining the user, and before definite touch manner, described method also comprises:
Set up the corresponding relation of touch manner and recognition mode.
3. method according to claim 1 and 2 is characterized in that, described recognition mode corresponding to described touch manner that obtain comprises:
Search in the corresponding relation of the touch manner of setting up in advance and recognition mode according to described touch manner, obtain recognition mode corresponding to described touch manner.
4. the hand input device of a touch apparatus is characterized in that, comprising:
The touch manner recognition unit is used for obtaining user's touch operation information under the handwriting input state of touch apparatus, and definite touch manner; Wherein, described touch operation information comprises: the user is the interior contact number that contacts with described touch apparatus at one time; Described touch manner recognition unit comprises:
The contact information acquisition module is used for obtaining the at one time interior contact number that contacts with described touch apparatus of user;
The touch manner identification module is used for determining the touch manner that described touch apparatus is current according to described contact number; Wherein said touch manner comprises: single-point touches and multiple point touching;
Touch resolution unit, be used for obtaining recognition mode corresponding to described touch manner;
The track identification unit is used for identifying the handwriting input track that extracts from described touch operation information according to described touch manner and corresponding recognition mode, and shows recognition result corresponding to described handwriting input track; Wherein, described track identification unit comprises:
Filter subelement, be used for when described touch manner is multiple point touching, the track of fixed contact in a plurality of contacts of filtering, the sliding trace of acquisition current collector;
The track identification subelement is used for according to the recognition mode that obtains the sliding trace of current collector being identified as the handwriting input person's handwriting;
Show subelement, be used for showing recognition result corresponding to described handwriting input person's handwriting.
5. device according to claim 4 is characterized in that, described device also comprises:
Corresponding relation is set up the unit, is used for setting up the corresponding relation of touch manner and recognition mode, and stores described corresponding relation.
6. according to claim 4 or 5 described devices, it is characterized in that, described touch resolution unit specifically is used for: search the touch manner set up in advance and the corresponding relation of recognition mode according to described touch manner, obtain recognition mode corresponding to described touch manner.
7. an electronic equipment is characterized in that, comprises the hand input device of each described touch apparatus of claim 4-6.
8. electronic equipment according to claim 7 is characterized in that, described electronic equipment is any in electronic reader, panel computer, flat-panel monitor, the mobile phone.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110079720 CN102156578B (en) | 2011-03-30 | 2011-03-30 | Handwriting input method and handwriting input device of touch equipment and electronic equipment |
| PCT/CN2012/073288 WO2012130156A1 (en) | 2011-03-30 | 2012-03-30 | Handwriting input method and apparatus for touch device, and electronic device |
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| CN 201110079720 CN102156578B (en) | 2011-03-30 | 2011-03-30 | Handwriting input method and handwriting input device of touch equipment and electronic equipment |
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| CN102156578A CN102156578A (en) | 2011-08-17 |
| CN102156578B true CN102156578B (en) | 2013-01-09 |
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| CN102156578B (en) * | 2011-03-30 | 2013-01-09 | 汉王科技股份有限公司 | Handwriting input method and handwriting input device of touch equipment and electronic equipment |
| CN102566755A (en) * | 2011-12-15 | 2012-07-11 | 无敌科技(西安)有限公司 | Input device and method for complex font and simple font contrast learning |
| CN103197870B (en) * | 2012-01-05 | 2017-03-29 | 汉王科技股份有限公司 | The method and device of handoff functionality state in a kind of mobile terminal |
| CN103365574A (en) * | 2012-03-27 | 2013-10-23 | 百度在线网络技术（北京）有限公司 | Method and equipment for executing page turning operation |
| CN106126090B (en) * | 2012-05-11 | 2019-07-26 | 联想(北京)有限公司 | The control method and electronic equipment of a kind of electronic equipment |
| CN103425424B (en) * | 2012-05-22 | 2018-02-13 | 北京蒙恬科技有限公司 | Handwriting input word selection system and method |
| KR102051585B1 (en) * | 2012-08-27 | 2019-12-17 | 삼성전자주식회사 | An electronic device and method having a function of hand writing using multi-touch |
| WO2014089669A1 (en) * | 2012-12-13 | 2014-06-19 | Blackberry Limited | Handwriting-initiated search |
| CN103176794A (en) * | 2013-01-31 | 2013-06-26 | 北京恒华伟业科技股份有限公司 | Organization and analysis method of Android screen contact trajectory data |
| WO2014127493A1 (en) * | 2013-02-22 | 2014-08-28 | Yahoo! Inc. | Finger expressions for touch screens |
| US9760278B2 (en) | 2013-03-01 | 2017-09-12 | Altaba INC. | Finger expressions for touch screens |
| CN103246477B (en) * | 2013-05-15 | 2016-08-24 | 广东威创视讯科技股份有限公司 | The changing method of touch system input method and device, touch system |
| CN104699403B (en) * | 2015-03-20 | 2018-07-24 | 天脉聚源（北京）教育科技有限公司 | A kind of method and apparatus of person's handwriting displaying |
| CN104778003B (en) * | 2015-03-23 | 2019-06-14 | 惠州Tcl移动通信有限公司 | A kind of input trajectory recognition methods and its wearable device |
| US10007421B2 (en) * | 2015-08-03 | 2018-06-26 | Lenovo (Singapore) Pte. Ltd. | Natural handwriting detection on a touch surface |
| CN105573658A (en) * | 2016-02-01 | 2016-05-11 | 西安睿尚信息科技有限公司 | Method and system for switching input, page moving and page scaling on basis of handwriting |
| CN109521908B (en) * | 2018-11-28 | 2021-12-24 | 广州朗国电子科技有限公司 | Switching method of single-finger and multi-finger touch modes of intelligent whiteboard |
| CN114637454A (en) * | 2020-12-16 | 2022-06-17 | 北京搜狗科技发展有限公司 | Input method, input device and input device |
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| CN102156578B (en) * | 2011-03-30 | 2013-01-09 | 汉王科技股份有限公司 | Handwriting input method and handwriting input device of touch equipment and electronic equipment |
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| WO2012130156A1 (en) | 2012-10-04 |
| CN102156578A (en) | 2011-08-17 |
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