METHOD, TOUCH DEVICE AND COMPUTER PROGRAM PRODUCT FOR CONVERTING TOUCH POINTS INTO CHARACTERS

• US 20130057494A1
• Filed: 08/30/2012
• Published: 03/07/2013
• Est. Priority Date: 09/05/2011
• Status: Active Grant

• Current Assignee: MediaTek, Inc.
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: HUANG, HUNG-CHI
• Granted Patent: US 9,310,997 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/32 Digital ink

Abstract

The disclosure is related to a method, a touch device and a computer program product for converting touch points into characters. In particular, through an input interface, the converting method can be applied to the touch device and the computer program product. The converting method for example includes the following steps of: sensing at least one touch point triggered by a user on the input interface to obtain touch point number information and touch point position information; generating a touch point distribution of the sensed touch point(s) according to the touch point number information and the touch point position information; and determining an input character according to the touch point distribution.

Claims

1. A method for converting at least one touch point into a character, applied to an input interface, the method comprising:

sensing the at least one touch point triggered by a user on the input interface to obtain touch point number information and touch point position information;

generating a touch point distribution of the sensed at least one touch point according to the touch point number information and the touch point position information; and

determining an input character according to the touch point distribution.

2. The method according to claim 1, wherein the touch point distribution indicates a relative position of the sensed at least one touch point.

3. The method according to claim 1, further comprising:

outputting the input character through an audio manner or a video manner.

4. The method according to claim 1, wherein the step of sensing the at least one touch point triggered by a user on the input interface and obtaining touch point number information and touch point position information according to the sensed at least one touch point comprises:

counting the at least one touch point sensed in a predetermined period and thereby obtaining the touch point number information.

5. The method according to claim 1, wherein

if the touch point number information indicates that only one touch point is sensed, the only one touch point represents that the user only triggers a first touch point located at a first coordinate position on the input interface, and the first touch point position information contains the first coordinate position;

and

if the touch point number information indicates that multiple touch points are sensed, the multiple touch points represent that the user at least triggers the first touch point and a second touch point respectively located at the first coordinate position and a second coordinate position on the input interface, and correspondingly the touch point position information contains the first coordinate position and the second coordinate position.

6. The method according to claim 1, wherein the input character comprises symbols, letters or numerals.

7. A touch device for converting at least one touch point into a character, comprising:

a recognition unit, for sensing the at least one touch point triggered by a user on an input interface to obtain touch point number information and touch point position information; and

a control unit, electrically coupled to the recognition unit, for generating a touch point distribution of the sensed at least one touch point according to the touch point number information and the touch point position information and determining an input character according to the touch point distribution.

8. The touch device according to claim 7, wherein the touch point distribution indicates a relative position of the sensed at least one touch point.

9. The touch device according to claim 7, further comprising:

an output unit, coupled to the control unit, for outputting the input character through an audio manner or a video manner.

10. The touch device according to claim 7, further comprising:

a storage unit, coupled to the recognition unit and the control unit, for providing a lookup table containing a plurality of distribution parameters, wherein the control unit determines the input character by comparing the touch point distribution with the lookup table.

11. The touch device according to claim 7, wherein the recognition unit obtains the touch point number information through counting the at least one touch point sensed in a predetermined period.

12. The touch device according to claim 7, wherein

if the touch point number information indicates that only one touch point is sensed, the only one touch point represents that the user only triggers a first touch point located at a first coordinate position on the input interface, and the touch point position information contains the first coordinate position;

and

if the touch point number information indicates that multiple touch points are sensed, the multiple touch points represent that the user at least triggers the first touch point and a second touch point respectively located at the first coordinate position and a second coordinate position on the input interface, and the touch point position information contains the first coordinate position and the second coordinate position.

13. The touch device according to claim 7, wherein the input character comprises symbols, letters or numerals.

14. A computer program product stored with a software program for use with an input interface and being executed to cause an electronic device with a control unit to perform a method for converting at least one touch point into a character, the method comprising:

sensing the at least one touch point triggered by a user on the input interface to obtain touch point number information and touch point position information according to the sensed at least one touch point;

generating a touch point distribution of the sensed at least one touch point according to the touch point number information and the touch point position information; and

determining an input character according to the touch point distribution.

15. The computer program product according to claim 14, wherein the touch point distribution indicates a relative position of the sensed at least one touch point

16. The computer program product according to claim 14, wherein the method further comprises:

outputting the input character through an audio manner or a video manner.

17. The computer program product according to claim 14, wherein the step of sensing the at least one touch point triggered by a user on the input interface to obtain touch point number information and touch point position information according to the sensed at least one touch point comprises:

counting the at least one touch point sensed in a predetermined period and thereby obtaining the touch point number information.

18. The computer program product according to claim 14, wherein

if the touch point number information indicates that only one touch point is sensed, the only one touch point represents that the user only triggers a first touch point located at a first coordinate position on the input interface, and the touch point position information contains the first coordinate position;

and

if the touch point number information indicates that multiple touch points are sensed, the multiple touch points represent that the user at least triggers the first touch point and a second touch point respectively located at the first coordinate position and a second coordinate position on the input interface, and the touch point position information contains the first coordinate position and the second coordinate position.

19. The computer program product according to claim 14, wherein the input character comprises symbols, letters or numerals.