PEN STROKE TRACK UPDATING METHOD AND SYSTEM THEREOF FOR HANDHELD TOUCH DEVICE

• US 20100302189A1
• Filed: 05/27/2010
• Published: 12/02/2010
• Est. Priority Date: 05/27/2009
• Status: Abandoned Application

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Liu, Chi-Shen
• Application Number:
  US12/788,465
• Publication Number:
  US 20100302189A1
• 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

Abstract

A pen stroke track updating method and system thereof for handheld touch device are provided. In the method, the user firstly touches the touch module to form a pen stroke track using his finger, whereupon a control unit matches the pen stroke track with a plurality of track paths prestored in a storage module, determines whether or not the pen stroke track matches track removal rules, or determines whether or not the pen stroke track has been overlapped, and then a partial track, or the entire pen stroke track is removed according to the result of matching or analysis. Afterward, when the finger has left the touch module, the recorded pen stroke track is designated as a stopped track, which is used as a matching condition to obtain the required track path.

Claims

1. A method of inputting a control instruction of a handheld device, applicable to activate a program required by a user without opening function menus, comprising steps of:

A pen stroke track updating method for handheld touch device, comprising the following steps;

recording touched positions on a touch module of a handheld touch device to continually form a pen stroke track;

matching the pen stroke track with a plurality of track paths prestored in the handheld touch device;

determining whether or not the pen stroke track matches at least one of the track paths;

removing the pen stroke track when a match is not determined;

updating the pen stroke track when a match is determined;

determining whether or not the touch module is still being touched; and

when it is determined that the touch module is still being touched, returning to the recorded touched position on the touch module of the handheld touch device to continue the step of forming the pen stroke track.

2. The pen stroke track updating method for handheld touch device according to claim 1, wherein the step of recording the touched positions on the touch module of the handheld touch device comprises the following step:

displaying the track paths while the touch module is being touched.

3. The pen stroke track updating method for handheld touch device according to claim 2, wherein the step of updating the pen stroke track comprises removing at least one of the track paths displayed on the touch module not matching the pen stroke track.

4. The pen stroke track updating method for handheld touch device according to claim 1, further comprising the following step:

recording the pen stroke track as a stopped track when it is determined that the touch module is not being touched, comparing the stopped track with the track paths, and obtaining the track path matching the stopped track.

5. The pen stroke track updating method for handheld touch device according to claim 4, further comprising

executing a control instruction according to the track path matching the stopped track.

6. A pen stroke track updating method for handheld touch device, comprising the following steps:

recording touched positions on a touch module of a handheld touch device to continually form a pen stroke track;

determining whether or not formation of the pen stroke track matches track removal rules;

when a match with the track removal rules is determined, removing a partial track of the pen stroke track according to the track removal rules, and carrying out an error correction on the current touched position and the end point of the pen stroke track of the touch module;

updating the pen stroke track when no match with the track removal rules is determined;

determining whether or not the touch module is still being touched; and

when it is determined that the touch module is still being touched, returning to the recorded touched position on the touch module of the handheld touch device to continue the step of forming the pen stroke track.

7. The pen stroke track updating method for handheld touch device according to claim 6, wherein the step determining whether or not formation of the pen stroke track matches track removal rules comprises the following steps:

setting error areas for the pen stroke track, the error areas being a specific width range of the two sides of the vertical pen stroke track;

determining whether or not the error areas adjoining the end point of the pen stroke track have been touched;

if it is determined that the error area adjoining the end point of the pen stroke track has been touched, acknowledging that formation of the pen stroke track matches the track removal rules, and analyzing the touched position of the error area to calculate a partial track of the pen stroke track that needs to be removed; and

if it is determined that the error areas adjoining the end point of the pen stroke track have not been touched, acknowledging that formation of the pen stroke track does not match the track removal rules.

8. The pen stroke track updating method for handheld touch device according to claim 6, wherein the step of determining whether or not formation of the pen stroke track matches the track removal rules comprises the following steps:

determining whether or not the end point of the pen stroke track overlaps any position of the pen stroke track;

if an overlap is determined, acknowledging that formation of the pen stroke track matches the track removal rules, designating the track between the overlapping position to the end point of the pen stroke track as the partial track, and setting the overlapping position as the end point of the pen stroke track after removing the partial track; and

if no overlap is determined, acknowledging that formation of the pen stroke track does not match the track removal rules.

9. The pen stroke track updating method for handheld touch device according to claim 6, wherein the step of determining whether or not formation of the pen stroke track matches the track removal rules comprises the following steps:

determining whether or not the end point of the pen stroke track overlaps adjoining tracks of the pen stroke track;

removing the overlapping track of the pen stroke track when an overlap is determined, and setting the end point of the pen stroke track after removing the overlapping track;

updating the pen stroke track when no overlap is determined;

determining whether or not the touch module is still being touched; and

when it is determined that the touch module is still being touched, returning to the recorded touched position on the touch module of the handheld touch device to continue the step of forming the pen stroke track.

10. The pen stroke track updating method for handheld touch device according to claim 6, wherein the step of determining whether or not the touch module is still being touched comprises the following step:

recording the pen stroke track as a stopped track when it is determined that the touch module is not being touched, comparing the stopped track with the track paths, and obtaining the track path matching the stopped track.

11. The pen stroke track updating method for handheld touch device according to claim 10, further comprising executing a control instruction according to the track path matching the stopped track.

12. The pen stroke track updating method for handheld touch device according to claim 6, wherein the step of recording touched positions on a touch module of a handheld touch device comprises the following steps:

when the touch module is being touched, displaying the track paths using a display module of the handheld touch device.

13. The pen stroke track updating method for handheld touch device according to claim 12, wherein the step of updating the pen stroke track comprises removing at least one of the track paths displayed on the display module not matching the pen stroke track.

14. A pen stroke track updating system for handheld touch device, comprising:

a storage module, the storage module is used to store a plurality of track paths;

a touch module, the touch module is used to enable touching and recording touched positions to continually form a pen stroke track; and

a control unit, the control unit is used to determine whether or not the pen stroke track matches at least one of the track paths, and when a match is determined, instructs the touch module to continue updating the pen stroke track, when no match is determined, the pen stroke track is removed, and when it is determined that the touch module is still being touched, the pen stroke track continues to be formed.

15. The pen stroke track updating system for handheld touch device according to claim 14, wherein the control unit instructs the touch module to display the track paths matching the pen stroke track.

16. The pen stroke track updating system for handheld touch device according to claim 14, wherein the control unit instructs the touch module to display the track paths while the touch module is being touched.

17. A pen stroke track updating system for handheld touch device, comprising:

a storage module, the storage module is used to store track removal rules;

a touch module, the touch module is used to enable touching and recording touched positions to continually form a pen stroke track; and

a control unit, the control unit is used to determine whether or not formation of the pen stroke track matches the track removal rules, and when a match is determined,

a partial track of the pen stroke track is removed according to the track removal rules, an error correction is carried out on the current touched position and the end point of the pen stroke track on the touch module;

when a match is not determined, the pen stroke track is updated, and the pen stroke track continues to be formed when it is determined that the touch module is still being touched.

18. The pen stroke track updating system for handheld touch device according to claim 17, wherein the storage module stores a plurality of track paths, and the control unit instructs the touch module to display the track paths matching the pen stroke track.

19. The pen stroke track updating system for handheld touch device according to claim 17, wherein the storage module stores a plurality of the track paths, and the control unit instructs the touch module to display the track paths.

20. The pen stroke track updating system for handheld touch device according to claim 17, wherein the path track removal rules comprise designating a specific width range of the two sides of the vertical pen stroke track as error areas of the pen stroke track, when the control unit determines that the error area adjoining the end point of the pen stroke track has been touched, formation of the pen stroke track matches the track removal rules, and the control unit analyzes the touched position of the error area to calculate a partial track of the pen stroke track that needs to be removed.

21. The pen stroke track updating system for handheld touch device according to claim 17, wherein the track removal rules comprise:

when the end point of the pen stroke track overlaps any position of the pen stroke track, formation of the pen stroke track matches the track removal rules, and the control unit designates the track between the overlapping position to the end point of the pen stroke track as a partial track, and the overlapping position is set as the end point of the pen stroke track after removing the partial track.

22. The pen stroke track updating system for handheld touch device according to claim 17, wherein the path removal rules comprise:

when the end point of the pen stroke track overlaps the pen stroke track, the control unit removes the overlapping track of the pen stroke track, and sets the end point of the pen stroke track after removing the overlapping track.