INPUT ERROR-CORRECTION METHODS AND APPARATUSES, AND AUTOMATIC ERROR-CORRECTION METHODS, APPARATUSES AND MOBILE TERMINALS

• US 20130311956A1
• Filed: 03/13/2013
• Published: 11/21/2013
• Est. Priority Date: 05/17/2012
• Status: Abandoned Application

• Current Assignee: MediaTek Singapore Pte. Ltd. (MediaTek, Inc.)
• Original Assignee: MediaTek Singapore Pte. Ltd. (MediaTek, Inc.)
• Inventors: LI, YAJUN
• Application Number:
  US13/799,690
• Publication Number:
  US 20130311956A1
• Time in Patent Office: Days
• US Class Current: 715/863
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0237 using prediction or retrieval techniques
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

An input error-correction method for a software keyboard is provided. The method includes: when entering an input key on the software keyboard, detecting if there is a sliding input; if there is a sliding input, obtaining a slide angle and a slide direction from the sliding input; and determining a target key to replace the input key according to the input key, the slide angle, and the slide direction for input error correction.

Claims

1. An input error-correction method for a software keyboard, the method comprising:

when entering an input key on the software keyboard, detecting if there is a sliding input;

if there is a sliding input, obtaining a slide angle and a slide direction from the sliding input; and

determining a target key to replace the input key according to the input key, the slide angle, and the slide direction for input error correction.

2. The input error-correction method as claimed in claim 1, wherein the step of obtaining the slide angle comprising:

obtaining the slide angle from a straight line defined by a starting point and an end point of the sliding input.

3. The input error-correction method as claimed in claim 1, wherein the step of obtaining the slide angle comprising:

obtaining the slide angle from an angular bisector of a most inclined ray and a least inclined ray, both selected from a series of rays defined by a starting point and one of a plurality of points on a sliding locus of the sliding input.

4. The input error-correction method as claimed in claim 1, wherein the step of determining the target key to replace the input key further comprising:

determining at least one candidate target key for replacing the input key according to the input key and the slide angle;

determining the target key for replacing the input key according to the slide direction and the at least one candidate target key for input error correction.

5. The input error-correction method as claimed in claim 4, wherein the step of determining at least one candidate target key further comprising:

linking the input key to a plurality of adjacent keys, which are adjacent to the input key, to form a plurality of rays;

obtaining a plurality of angular bisectors of every two adjacent rays;

corresponding each angle between every two adjacent angular bisectors to a respective one of the adjacent keys;

selecting at least two of the adjacent keys as the candidate target keys according to the slide angle.

6. The input error-correction method as claimed in claim 5, wherein the step of linking the input key to a plurality of adjacent keys to form a plurality of rays further comprising:

linking the center of the input key to the centers of the plurality of adjacent keys to form a plurality of rays.

7. The input error-correction method as claimed in claim 1, further comprising:

determining if the sliding input is an error-correction record;

storing the error-correction record if the sliding input is an error-correction record;

updating correction data when the stored error-correction record meets predetermined correction criteria; and

when re-entering the input key, automatically setting the target key as a correction item, which corresponds to the correction data, for input error correction.

8. An input error-correction apparatus for a software keyboard, the apparatus comprising:

a detection unit, for detecting if there is a sliding input when an input key on the software keyboard is entered;

an obtaining unit, for obtaining a slide angle and a slide direction from the sliding input; and

an error correction unit, for determining a target key to replace the input key according to the input key, the slide angle, and the slide direction for input error correction.

9. The input error-correction apparatus as claimed in claim 8, wherein the obtaining unit comprising:

a first obtaining module, for obtaining the slide angle from a straight line defined by a starting point and an end point of the sliding input.

10. The input error-correction apparatus as claimed in claim 8, wherein the obtaining unit comprises

a second obtaining module, for obtaining the slide angle from an angular bisector of a most inclined ray and a least inclined ray, both selected from a series of rays defined by a starting point and one of a plurality of points on a sliding locus of the sliding input.

11. The input error-correction apparatus as claimed in claim 8, wherein the error correction unit determines at least one candidate target key for replacing the input key according to the input key and the slide angle, and determines the target key for replacing the input key according to the slide direction and the at least one candidate target key for input error correction.

12. The input error-correction apparatus as claimed in claim 11, wherein the error correction unit links the input key to a plurality of adjacent keys, which are adjacent to the input key, to form a plurality of rays;

obtains a plurality of angular bisectors of every two adjacent rays;

corresponds each angle between every two adjacent angular bisectors to a respective one of the adjacent keys; and

, selects at least two of the adjacent keys as the at least one candidate target key according to the slide angle.

13. The input error-correction apparatus as claimed in claim 12, wherein the error correction unit further links the center of the input key to the centers of the plurality of adjacent keys to form a plurality of rays.

14. The input error-correction apparatus as claimed in claim 8, further comprising:

a determination unit, for determining if the sliding input is an error-correction record; and

storing the error-correction record in a memory if the sliding input is an error-correction record;

an updating unit, for updating correction data when the stored error-correction record meets predetermined correction criteria; and

a correction unit, for, when re-entering the input key, automatically setting the target key as a correction item, which corresponds to the correction data, for input error correction.

39. A mobile terminal, comprising an input error-correction apparatuses as claimed in claim 8, for performing error correction for the input of a software keyboard of the mobile terminal.

15. An input error-correction method for a software keyboard, the method comprising:

when entering an input key on the software keyboard, detecting if there is a sliding input;

if there is a sliding input, obtaining an input position of the input key and a slide angle from the sliding input; and

determining a target key to replace the input key according to the input position and the slide angle for input error correction.

16. The input error-correction method as claimed in claim 15, wherein the step of obtaining the slide angle comprising:

obtaining the slide angle from a straight line defined by a starting point and an end point of the sliding input.

17. The input error-correction method as claimed in claim 15, wherein the step of obtaining the slide angle comprising:

obtaining the slide angle from an angular bisector of a most inclined ray and a least inclined ray, both selected from a series of rays defined by a starting point and one of a plurality of points on a sliding locus of the sliding input.

18. The input error-correction method as claimed in claim 15, wherein the step of determining the target key to replace the input key further comprising:

determining at least one candidate target key for replacing the input key according to the input position and the slide angle; and

selecting a candidate target key which is closest to the input position as the target key according to the input position and the at least one candidate target key, for input error correction.

19. The input error-correction method as claimed in claim 15, further comprising:

determining if the sliding input is an error-correction record;

storing the error-correction record if the sliding input is an error-correction record;

updating correction data when the stored error-correction record meets predetermined correction criteria; and

when re-entering the input key, automatically setting the target key as the correction data for input error correction.

20. An input error-correction apparatus for a software keyboard, the apparatus comprising:

a detection unit for detecting if there is a sliding input when an input key on the software keyboard is entered;

an obtaining unit for obtaining an input position of the input key and a slide angle from the sliding input; and

an error correction unit for determining a target key to replace the input key according to the input position and the slide angle for input error correction.

21. The input error-correction apparatus as claimed in claim 20, wherein the obtaining unit comprising:

a first obtaining module, for obtaining the slide angle from a straight line defined by a starting point and an end point of the sliding input.

22. The input error-correction apparatus as claimed in claim 20, wherein the obtaining unit comprising:

a second obtaining module, for obtaining the slide angle from an angular bisector of a most inclined ray and a least inclined ray, both selected from a series of rays defined by a starting point and one of a plurality of points on a sliding locus of the sliding input.

23. The input error-correction apparatus as claimed in claim 20, wherein the error correction unit determines at least one candidate target key for replacing the input key , according to the input position and the slide angle;

and selecting a candidate target key which is closest to the input position as the target key according to the input position and the at least one candidate target key, for input error correction.

24. The input error-correction apparatus as claimed in claim 20, further comprising:

a determination unit for determining if the sliding input is an error-correction record; and

storing the error-correction record in a memory if the sliding input is an error-correction record;

an updating unit for updating correction data when the stored error-correction record meets predetermined correction criteria; and

a correction unit, for, when re-entering the input key, automatically setting the target key as the correction data for input error correction.

40. A mobile terminal, comprising an input error-correction apparatuses as claimed in claim 20, for performing error correction for the input of a software keyboard of the mobile terminal.

25. An automatic error-correction method for an input device, the method comprising:

when entering an input key of the input device, determining if the input key needs to be corrected;

if the input key needs to be corrected, obtaining a correction item corresponding to the input key according to correction data corresponding to the input key stored in a correction database; and

automatically replacing the input key with the correction item corresponding to the input key for error correction.

26. The automatic error-correction method as claimed in claim 25, wherein the step of determining if the input key of the input device needs to be corrected comprising:

when there is no correction data corresponding to the input key in the correction database, determining that the input key does not need to be corrected;

when there is correction data corresponding to the input key in the correction database, determining that the input key needs to be corrected.

27. The automatic error-correction method as claimed in claim 25, further comprising:

when the input key of the input device is replaced by a target key, determining if the target key is an error-correction record;

if the target key is the error-correction record, storing the error-correction record;

if the stored error-correction records reach to predetermined correction criteria, updating the correction data corresponding to the input key.

28. The automatic error-correction method as claimed in claim 27, wherein the step of determining if the target key is an error-correction record comprising:

when an input position of the input key is away from a fixed area and the input position is near the target key, determining that the target key is the error-correction record.

29. The automatic error-correction method as claimed in claim 28, further comprising:

if a word with meaning can be produced after replacing the input key with the target key, determining the target key is the error-correction record.

30. The automatic error-correction method as claimed in claim 27, wherein the step of updating the correction data of the input key comprising:

counting the number of error-correction records, and updating the correction data corresponding to the input key when the number reaches a predetermined value.

31. The automatic error-correction method as claimed in claim 27 further comprising:

when re-entering the input key, if the input key needs to be corrected, obtaining an updated correction item corresponding to the input key according to the updated correction data, and automatically replacing the input key with the updated correction item corresponding to the input key, for error correction, wherein the updated correction item corresponding to the updated input key is the target key.

32. An automatic error-correction apparatus for an input device, the apparatus comprising:

a storage unit for storing a correction database containing correction data;

a determination unit for determining, when an input key of the input device is entered, if the input key needs to be corrected;

a decision unit for obtaining a correction item corresponding to the input key according to the correction data corresponding to the input key stored in the correction database; and

an error correction unit, for automatically replacing the input key with the correction item corresponding to the input key for error correction.

33. The automatic error-correction apparatus as claimed in claim 32, wherein the determination unit further determines that the input key does not need to be corrected when there is no correction data corresponding to the input key in the correction database;

and determines that the input key needs to be corrected when there is correction data corresponding to the input key in the correction database.

34. The automatic error-correction apparatus as claimed in claim 32, wherein the storage unit further stores error-correction records;

and the automatic error-correction apparatus further comprising;

a correction data updating unit for determining if the target key is an error-correction record when the input key of the input device is replaced by a target key;

if the target key is an error-correction record, the error-correction record is stored in the storage unit; and

if the stored error-correction records reach to predetermined correction criteria, the correction data corresponding to the input key is updated.

35. The automatic error-correction apparatus as claimed in claim 34, wherein,

determining that the target key is the error-correction record, when an input position of the input key is away from a fixed area and the input position is near the target key.

36. The automatic error-correction apparatus as claimed in claim 35, wherein,

determining that the target key is the error-correction record if a word with meaning can be produced after replacing the input key with the target key.

37. The automatic error-correction apparatus as claimed in claim 34, wherein,

the correction data updating unit counts the number of error-correction records, and updates the correction data corresponding to the input key when the number reaches a predetermined value.

38. The automatic error-correction apparatus as claimed in claim 34, wherein,

when the input key is re-entered, if the determination unit determines that the input key needs to be corrected, the decision unit obtains an updated correction item corresponding to the input key according to the updated correction data, and the error correction unit automatically replaces the input key with the updated correction item corresponding to the input key, for error correction, wherein the updated correction item corresponding to the updated input key is the target key.

41. A mobile terminal, comprising an automatic error-correction apparatuses as claimed in claim 32, for performing automatic error correction on the input to the input device of the mobile terminal.