WO2012130156A1

WO2012130156A1 - Handwriting input method and apparatus for touch device, and electronic device

Info

Publication number: WO2012130156A1
Application number: PCT/CN2012/073288
Authority: WO
Inventors: 秦建辉
Original assignee: 汉王科技股份有限公司
Priority date: 2011-03-30
Filing date: 2012-03-30
Publication date: 2012-10-04
Also published as: CN102156578A; CN102156578B

Abstract

Disclosed are a handwriting input method and device for a touch device, and an electronic device, relating to the technical field of input methods, mainly used in handwriting input technology and invented for ensuring the coherence of handwriting input of the user and simplifying the operation when the user performs hybrid handwriting input using a multipoint touch device. The handwriting input method for a touch device includes: establishing a correlation between a touch manner and a recognition mode (11); under the handwriting input state of the touch device, acquiring touch operation information about the user, and determining the touch manner (12); acquiring the recognition mode corresponding to the touch manner (13); recognizing the handwriting input trace extracted from touch operation information according to the touch manner and the corresponding recognition mode, and displaying the recognition result corresponding to the handwriting input trace (14).

Description

Technical field

The present invention relates to the field of input methods, and in particular, to a handwriting input method and apparatus for a touch device and an electronic device. Background technique

With the development of multi-touch technology, multi-touch devices have been rapidly popularized and popularized, but the multi-touch function on these multi-touch devices is limited to zoom-in and zoom-out functions, and is not fully applied to handwriting input technology.

In the prior art, the handwriting input method for a multi-touch device generally continues the single-touch input method when implementing a mixed input of various characters and punctuation marks.

Specifically, it can be divided into the following two types: One is to divide the characters to be input into different recognition modes (such as: Chinese characters, English letters, numbers, punctuation marks, etc.), and set on the panel of the input method with each recognition mode. Corresponding function keys to switch between different recognition modes. For example, if the user selects the punctuation function key, the input method will switch to the punctuation recognition state, in which the input method will recognize the input handwriting according to the punctuation mode. In this way, the user needs to click the function button repeatedly to switch the recognition mode, thus affecting the consistency of the user's handwriting input.

The other is to add a soft keyboard to the input method. The user can input the punctuation by clicking the soft keyboard. In this way, for some embedded devices, it will occupy the screen display space and program resources, and also increase the complexity of user operations. Summary of the invention

The embodiment of the invention provides a handwriting input method and device for a touch device, so as to ensure continuity of handwriting input of a user and simplify operation when performing mixed handwriting input by using a touch device.

The embodiment of the invention adopts the following technical solutions:

A handwriting input method for a touch device, comprising: Obtaining touch operation information of the user and determining a touch mode in a handwriting input state of the touch device; acquiring an identification mode corresponding to the touch mode;

A handwriting input handwriting extracted from the touch operation information is recognized according to the touch mode and the recognition mode, and a recognition result corresponding to the handwriting input handwriting is displayed.

A handwriting input device for a touch device, comprising:

a touch mode identifying unit, configured to acquire touch operation information of the user in a handwriting input state of the touch device, and determine a touch mode;

a touch analysis unit, configured to acquire an identification mode corresponding to the touch mode;

The trajectory identifying unit is configured to identify a handwriting input trajectory extracted from the touch operation information according to the touch mode and a corresponding recognition mode, and display a recognition result corresponding to the handwriting input trajectory. As can be seen from the above, in the embodiment of the present invention, when the handwriting input is performed by using the touch device, the touch operation information of the user is acquired, and the touch mode is determined, and the corresponding recognition mode is obtained by the touch mode, and then according to the touch mode. And the corresponding recognition mode identifies the handwriting input handwriting of the user, and displays a recognition result corresponding to the handwritten input handwriting. Therefore, when the method and the device of the embodiment of the present invention are used, when the mixed handwriting input is performed, the function key is not frequently switched to switch the recognition mode, thereby ensuring the continuity of the user's handwriting input; meanwhile, there is no need to add a soft keyboard to implement the punctuation. The input of symbols simplifies the user's operation. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief description of the drawings to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. In some of the drawings, other drawings may be obtained from those skilled in the art without departing from the drawings.

1 is a flowchart of a handwriting input method of a touch device according to a first embodiment of the present invention;

2 is a schematic diagram of a manner of single-touch in the first embodiment of the present invention;

3 is a schematic diagram of a manner of two-point touch in the first embodiment of the present invention;

FIG. 4 is still another schematic diagram of a two-point touch method according to Embodiment 1 of the present invention; FIG. 5 is a schematic diagram of a handwriting input device of a touch device according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a touch mode identification unit according to Embodiment 2 of the present invention;

7 is a structural diagram of a handwriting input device of a touch device according to Embodiment 2 of the present invention;

FIG. 8 is a schematic diagram of a track recognition unit according to Embodiment 2 of the present invention. detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the handwriting input method of the touch device of the embodiment of the present invention, in the handwriting input state of the touch device, the user is acquired in the handwriting input state of the touch device, in order to ensure the consistency of the handwriting input of the user and the user's operation. Touching the operation information, and determining the touch mode, and then acquiring the recognition mode corresponding to the touch mode. Then, the handwriting input handwriting extracted from the touch operation information is recognized according to the touch mode and the corresponding recognition mode, and the recognition result corresponding to the handwriting input handwriting is displayed.

In the embodiment of the present invention, when the handwriting input is performed by using the touch device, the touch operation information of the user is acquired, and the touch mode is determined, the corresponding recognition mode is obtained by the touch mode, and then the user's handwriting is recognized according to the touch mode and the recognition mode. Enter the handwriting and display the recognition result corresponding to the handwritten input handwriting. Therefore, with the method of the embodiment of the present invention, when the mixed handwriting input is performed, the function key is not frequently switched to switch the recognition mode, thereby ensuring the consistency of the user's handwriting input; meanwhile, there is no need to add a soft keyboard to implement punctuation. Input, which simplifies the user's operation.

As shown in FIG. 1, the handwriting input method of the touch device according to Embodiment 1 of the present invention may include the following steps. Step 11: Establish the correspondence between the touch mode and the recognition mode.

The recognition mode may include a Chinese character mode, a punctuation mode, an English alphabet mode, and the like; the touch mode may include: a single touch and a multi-touch.

In this embodiment, a plurality of contacts may be provided, namely: a first contact, a second contact, ... and an Nth contact. Wherein, the first contact, the second contact, ... and the N-1th contact may be disposed on a display of the multi-touch device Any position in the screen, and remains unchanged, the Nth contact is used to write a character handwriting in the writing area provided by the display screen of the multi-touch device, wherein the writing area may be a limited area or the entire display screen The embodiment of the present invention does not limit this. The specific value of N may be arbitrarily set according to the input mode. Preferably, N is a positive integer less than or equal to 10.

Moreover, in the embodiment of the present invention, the single touch and the multi touch are defined as follows:

A single touch is a touch of a point, and the touch method is "write a character handwriting in a writing area provided on the display screen of the multi-touch device with only one finger".

Multi-touch includes two point touches, three point touches, ... N point touches, etc., where the value of N can take an integer greater than or equal to 2. For example, the touch method of two point touches is "touch the touch screen with two fingers, one of the fingers touches any position on the touch screen of the multi-touch device, does not leave the touch screen, does not move on the touch screen, and the other finger is more The touch gesture is written in the writing area provided on the touch screen of the touch device. Similarly, the touch method of the N point touch is "with N-1 fingers touching any position on the touch screen of the multi-touch device, without leaving the touch screen , and does not move on the touch screen, the Nth finger writes a character handwriting in the writing area provided on the touch screen of the multi-touch device.

In specific applications, the following recognition modes can be defined in the program according to specific needs, for example:

#define Chinese 0x0001 II Chinese characters

#define Punctuation 0x0002 II Punctuation

#define Alphabet 0x0004 II English letters As shown in Figure 2, it is a schematic diagram of the single-touch method. For the two-point touch method, the user can complete the handwriting input by one-hand operation or two-hand operation. As shown in FIG. 3, when the user touches the character period "." with one hand, one of the fingers a (ie, the first contact) of the same hand touches any position of the screen and is fixed, the same hand. The other finger b (ie the second contact) touches the screen and writes a character handwriting. As shown in FIG. 4, when the user touches the question mark "?" with two fingers, the finger c (ie, the first contact) on one of the hands touches any position of the screen and is fixed, and the other hand Finger d (ie the second contact) touches the screen and writes a character handwriting.

The combination of different number of contacts corresponds to different recognition modes, and the correspondence shown in Table 1 below can be established: Table 1

Step 12: Obtain the touch operation information of the user in the handwriting input state of the touch device, and determine the touch mode.

The touch operation information may include: the number of contacts that are in contact with the multi-touch device at the same time, the coordinates of each contact, the sliding direction, and the like, and the movement coordinates of each contact constitute a sliding track of the contact.

If there is only one contact on the multi-touch device at the same time, the current touch mode of the multi-touch device is single touch; if there are more than two contacts on the multi-touch device at the same time, then more points The current touch mode of the touch device is multi-touch.

Step 13: Find a correspondence between the touch mode and the recognition mode that is established in advance according to the touch mode, and acquire an identification mode corresponding to the touch mode.

According to Table 1, if it is a single touch, the current recognition mode is Chinese characters; if it is two points under multi-touch, the current recognition mode is punctuation; if it is three points under multi-touch , the current recognition mode is English letters.

In the multi-touch input, there may be more correspondence between the touch mode and the recognition mode, which are not enumerated here. It is also possible to establish a correspondence between more touch modes and recognition modes according to the positional relationship of a plurality of fixed contacts.

Step 14: Identify the handwriting input trajectory extracted from the touch operation information according to the touch mode and the corresponding recognition mode, and display the recognition result corresponding to the handwriting input trajectory.

In this step, the signals of the respective contacts received by the touch screen driver of the multi-touch device are first acquired. If the current touch screen operating system is in the handwriting input state, the signals of the acquired contacts are transmitted to the handwriting input process, otherwise the signals of the respective contacts are sent to the OS operating system for processing. In the process of multi-touch input, the handwriting input process receives the pen down signal of multiple contacts, and continuously receives the sliding track signal of the moving contact for handwriting, such as the coordinates of the changed contact. Sequence, and real-time display of the handwriting input trajectory consisting of the sliding trajectory of the moving contact. When a pen up action occurs, the handwriting input process receives a pen up signal and begins to recognize.

First, the touch operation information is obtained in step 12, and the touch operation information includes a plurality of sets of touch data, and the number of contacts, the coordinates of each contact, the sliding direction, and the like can be determined according to the touch data, wherein the movement coordinates of each contact The sliding trajectory of the contact is formed. The touch method is determined according to the number of contacts: single touch or multi-touch.

Then, in step 13, the recognition mode of the current handwriting input handwriting is obtained according to the touch mode obtained in step 12. Finally, when the touch mode is single touch, there is only one moving contact, and the sliding track of the moving contact is used as a handwriting input handwriting. Identifying the handwriting input handwriting according to the recognition mode corresponding to the single touch, and displaying the recognition result corresponding to the handwriting input handwriting; when the touch mode is multi-touch, filtering out the fixed contacts of the plurality of contacts The trajectory extracts a sliding trajectory of the moving contact among the plurality of contacts as a handwriting input handwriting. Then, based on the recognition mode obtained in step 13, the handwriting input handwriting is recognized, and the recognition result corresponding to the handwriting input handwriting is displayed.

For example, when the user needs to input Chinese characters, as shown in FIG. 2, a Chinese character can be written on the screen of the touch device with one finger, and the sliding track of the finger is a handwriting input handwriting; when the user needs to input the punctuation mark, the recognition is not switched. In the case of the mode, the touch screen can be simultaneously touched with two fingers, wherein the position of one finger is fixed and does not leave the screen, and the other finger writes the punctuation. As shown in Fig. 3 and Fig. 4, the sliding track of the fingers b and d is the handwriting input handwriting. In this way, not only the interruption of the writing of the user by the switching recognition mode can be effectively avoided, but also the accuracy of the recognition can be well ensured, and the operation of the user is simplified.

As shown in FIG. 5, the second embodiment of the present invention further provides a handwriting input device of a touch device, which may include: a touch mode recognition unit 51, configured to acquire a touch operation of a user in a handwriting input state of the multi-touch device. The information is used to determine the touch mode; the touch analysis unit 52 is configured to acquire the recognition mode corresponding to the touch mode; the track recognition unit 53 is configured to identify the handwriting input track extracted from the touch operation information according to the touch mode and the corresponding recognition mode. And display the recognition result corresponding to the handwritten input track.

The touch operation information may include: a contact that is in contact with the multi-touch device at the same time The number, the coordinates of each contact, the sliding direction, etc., wherein the moving coordinates of each contact constitute the sliding track of the contact.

As shown in FIG. 6, the touch mode identification unit 51 may include: a contact information acquiring module 511, configured to acquire a number of contacts that the user contacts with the multi-touch device at the same time; and a touch mode identification module 512, configured to The current touch mode of the multi-touch device is determined according to the number of the contacts; wherein the touch mode may include: a single touch and a multi-touch. Wherein, the definitions of single touch and multi-touch can be referred to the description of the foregoing method embodiments. In addition, the contact information acquisition module acquires the number of contacts that the user contacts with the multi-touch device at the same time, and also acquires the coordinates, the sliding track, and the direction of each contact, so as to extract the user. Handwriting input trajectory.

The touch analysis unit 52 may be specifically configured to: search for a correspondence between the touch mode and the recognition mode according to the touch mode, and acquire an identification mode corresponding to the touch mode.

In order to further improve the user experience, as shown in FIG. 7, the handwriting input device may further include: a correspondence relationship establishing unit 54, configured to establish a correspondence between the touch mode and the recognition mode, and store the corresponding relationship.

As shown in FIG. 8, the trajectory identifying unit 53 may include: a filtering sub-unit 531, configured to filter a trajectory of the fixed contact of the plurality of contacts when the touch mode is multi-touch, and extract the sliding of the moving contact a track recognition sub-unit 532, configured to identify a sliding track of the moving contact as a handwriting input handwriting according to the obtained recognition mode; and a display sub-unit 533, configured to display a recognition result corresponding to the handwritten input handwriting.

That is to say, when the touch mode is single touch, the touch point is the only moving contact, and it is no longer necessary to filter the track of the contact. The sliding track of the touch point is a handwriting input handwriting, and the handwriting input handwriting is directly recognized by the track recognition sub-unit 532 according to the recognition mode corresponding to the single-point touch, and is displayed by the display sub-unit 533 corresponding to the handwriting input handwriting of the user. Identification result.

When the touch mode is multi-touch, the trajectory of the fixed contact among the plurality of contacts is filtered by the filter sub-unit 531, and the sliding trajectory of the moving contact is extracted as a handwriting input handwriting, which is obtained by the trajectory recognition sub-unit 532. The recognition mode recognizes the handwriting input handwriting, and the display sub-unit 533 displays the recognition result corresponding to the user's handwriting input handwriting.

As can be seen from the above description, when the mixed handwriting input is performed by using the multi-touch device, the touch operation information of the user is acquired, and the touch mode is determined, and the corresponding recognition mode is obtained by the touch method, and then according to the The touch mode and the recognition mode recognize the handwriting input handwriting of the user extracted from the touch operation information, and display the recognition result corresponding to the handwriting input handwriting. Therefore, with the device of the embodiment of the present invention, when the mixed handwriting input is performed, the function key is not frequently switched to switch the recognition mode, thereby ensuring the consistency of the user's handwriting input; meanwhile, there is no need to add a soft keyboard to implement punctuation. Input, which simplifies the user's operation.

The present invention also discloses an electronic device, including the handwriting input method and device of the touch device provided by the above embodiments. The electronic device is any one of an electronic reader, a tablet computer, a flat panel display, and a mobile phone.

A person skilled in the art can understand that all or part of the process of implementing the above embodiments can be completed by computer program instructions, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the method as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

1. A handwriting input method for a touch device, comprising:

Obtaining touch operation information of the user and determining a touch mode in a handwriting input state of the touch device; acquiring an identification mode corresponding to the touch mode;

A handwriting input trajectory extracted from the touch operation information is identified according to the touch mode and a corresponding recognition mode, and a recognition result corresponding to the handwriting input trajectory is displayed.

2. The method according to claim 1, wherein the touch operation information comprises: a number of contacts that the user contacts with the touch device in the same time;

The acquiring the touch operation information of the user and determining the touch manner includes:

Obtaining the number of contacts that the user contacts with the touch device at the same time;

Determining a current touch manner of the touch device according to the number of the contacts; wherein the touch manner includes: a single touch and a multi-touch.

3. The method according to claim 1, wherein the method further comprises: before the obtaining the user's touch operation information and determining the touch mode,

Establish a correspondence between the touch mode and the recognition mode.

The method according to claim 1 or 3, wherein the acquiring the recognition mode corresponding to the touch mode comprises:

A search is performed in a correspondence relationship between the touch mode and the recognition mode established in advance according to the touch mode, and an identification mode corresponding to the touch mode is obtained.

5. The method according to claim 2, wherein the touch operation information further comprises: coordinates of each contact, and coordinates of each contact movement constitute a sliding track of the contact;

The recognizing the handwriting input trajectory from the touch operation information according to the touch mode and the recognition mode, and displaying the recognition result corresponding to the handwriting input trajectory includes:

When the touch mode is a single touch, according to the obtained recognition mode, the sliding track of the contact is recognized as a handwriting input track, and a recognition result corresponding to the handwritten input track is displayed;

When the touch mode is multi-touch, filtering the trajectory of the fixed contacts among the plurality of contacts, according to the obtained knowledge In the mode, the sliding trajectory of the moving contact is recognized as a handwriting input trajectory, and the recognition result corresponding to the handwriting input trajectory is displayed.

6. A handwriting input device for a touch device, wherein:

And a trajectory identifying unit, configured to identify a handwriting input trajectory extracted from the touch operation information according to the touch mode and a corresponding recognition mode, and display a recognition result corresponding to the handwriting input trajectory.

The device according to claim 6, wherein the touch operation information comprises: a number of contacts that the user contacts with the touch device in the same time; the touch mode identification unit includes:

a contact information acquiring module, configured to acquire a number of contacts that the user contacts with the touch device at the same time;

a touch mode identification module, configured to determine a current touch mode of the touch device according to the number of the contacts; wherein the touch mode comprises: a single touch and a multi-touch.

8. The device according to claim 6, wherein the device further comprises:

The correspondence relationship establishing unit is configured to establish a correspondence between the touch mode and the recognition mode, and store the corresponding relationship.

The device according to claim 7 or 8, wherein the touch analysis unit is configured to: search for a correspondence between a touch mode and a recognition mode that are established in advance according to the touch mode, and acquire an identifier corresponding to the touch mode mode.

10. The device according to claim 7, wherein the touch operation information further comprises: coordinates of each contact, and coordinates of each contact movement constitute a sliding track of the contact;

The trajectory identification unit includes:

a filtering subunit, configured to filter a track of the fixed contact of the plurality of contacts when the touch mode is multi-touch, and obtain a sliding track of the moving contact;

a track recognition subunit, configured to identify a sliding track of the moving contact as a handwriting input handwriting according to the obtained recognition mode; a display subunit, configured to display a recognition result corresponding to the handwriting input handwriting.

An electronic device comprising the handwriting input device of the touch device of any one of claims 6-10.

12. The electronic device according to claim 11, wherein the electronic device is any one of an electronic reader, a tablet computer, a flat panel display, and a mobile phone.