Moving Point Gesture Determination method, Touch Control Chip, Touch Control System and Computer System

• US 20120194445A1
• Filed: 07/27/2011
• Published: 08/02/2012
• Est. Priority Date: 02/01/2011
• Status: Active Grant

• Current Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Original Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Inventors: Chang, Hui-Hung, Chang, Chun-Chieh, Lai, Chih-Chang
• Granted Patent: US 8,963,851 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A moving point gesture determination method is disclosed for a touch sense device mapped to a screen according to absolute position. The moving point gesture determination method includes steps of comparing one or more signal values of one or more detecting signals generated by the touch sense device with one or more threshold values, to determine whether any touch event occurs, and determining that a moving point gesture occurs once the determination indicates that a touch event occurs.

Claims

1. A moving point gesture determination method for a touch sense device mapped to a screen according to absolute position, comprising:

comparing one or more signal values of one or more detecting signals generated by the touch sense device with one or more threshold values, to determine whether any touch event occurs; and

determining that a moving point gesture occurs once the determination indicates that a touch event occurs.

2. The single click gesture determination method of claim 1, wherein the step of determining the moving point gesture occurring comprises determining a moving path of the moving point gesture starts at an entering point when the touch event occurs.

3. The single click gesture determination method of claim 1, wherein the step of determining whether the touch event occurs comprises:

(i) continuously comparing the one or more signal values of the one or more detecting signals corresponding to a same position with the one or more threshold values, to detect a continuous occurrence time; and

(ii) determining whether the touch event occurs at the same position according to the continuous occurrence time.

4. The moving point gesture determination method of claim 3, wherein the step of determining whether the touch event occurs at the same position according to the continuous occurrence time comprises:

determining whether the continuous occurrence time of the touch event is longer than a first predefined time; and

determining the touch event occurs at the same position if the determined result is true.

5. The moving point gesture determination method of claim 4, wherein the step of determining whether the continuous occurrence time of the touch event is longer than the first predefined time comprises:

comparing the one or more signal values of the one or more detecting signals corresponding to the same position with the one or more threshold values, and writing a first bit combination into a sequence if the compared result indicates a make state; and

comparing a number of consecutive times the first bit combination is written into the sequence with a first predefined number of times, to determine whether the continuous occurrence time of the touch event is longer than the first predefined time.

6. The moving point gesture determination method of claim 1 further comprising:

determining whether the touch event ends according to another result of the comparison after the touch event occurs; and

determining the moving point gesture ends once the touch event ends.

7. The moving point gesture determination method of claim 6 further comprising determining a moving path of the moving point gesture ends at a leaving point when the touch event ends.

8. The moving point gesture determination method of claim 7, wherein the step of determining whether the touch event ends according to the another result of the comparison further comprises:

continuously comparing the one or more signal values of the one or more detecting signals corresponding to a same position with the one or more threshold values, to detect a continuous stop time of the touch event; and

determining whether the touch event ends at the same position according to the continuous stop time of the touch event.

9. The moving point gesture determination method of claim 8, wherein the step of determining whether the touch event ends at the same position according to the continuous stop time of the event comprises:

determining whether the continuous stop time of the touch event is longer than a second predefined time; and

determining the touch event ends at the same position if the determined result is true.

10. The moving point gesture determination method of claim 9, wherein the step of determining whether the continuous stop time of the touch event is longer than the second predefined time comprises:

comparing the one or more signal values of the one or more detecting signals with the one or more threshold values, and writing a second bit combination into a sequence when the compared result indicates a break state; and

comparing a number of consecutive times the second bit combination is written into the sequence with a second predefined number of times, to determine whether the continuous stop time of the touch event is longer than the second predefined time.

11. A touch control chip for a touch control system, the touch control system further comprising a touch sense device, wherein the touch sense device is mapped to a screen according to absolute position, the touch control chip comprising:

a detection unit, for comparing signal values of one or more detecting signals generated by the touch sense device with one or more threshold values; and

a determining unit, for determining if any touch event occurs according to a result of the comparison, and determining that a moving point gesture occurs once the determination indicates that a touch event occurs.

12. The touch control chip of claim 11, wherein the determining unit determines a moving path of the moving point gesture starts at an entering point when the touch event occurs.

13. The touch control chip of claim 11, wherein the detection unit continuously compares signal values of one or more detecting signals corresponding to a same position with one or more threshold values, to detect a continuous occurrence time;

and determines whether the touch event occurs at the same position according to the continuous occurrence time.

14. The touch control chip of claim 13, wherein the determining unit determines whether the continuous occurrence time of the touch event is longer than a first predefined time duration;

and

determines the touch event occurs at the same position if the determined result is true.

15. The touch control chip of claim 14, wherein the detection unit compares signal values of one or more detecting signals corresponding to the same position with the one or more threshold values, and writes a first bit combination into a sequence if the compared result indicates a make state;

and compares a number of consecutive times the first bit combination is written into the sequence with a first predefined number of times, to determine whether the continuous occurrence time of the touch event is longer than the first predefined time.

16. The touch control chip of claim 11, wherein the determining unit determines whether the touch event ends according to another result of the comparison after the touch event occurs;

and

determines the moving point gesture ends once the touch event ends.

17. The touch control chip of claim 16, wherein the determining unit determines a moving path of the moving point gesture ends at a leaving point when the touch event ends.

18. The touch control chip of claim 17, wherein the detection unit continuously compares signal values of the one or more detecting signals corresponding to a same position with the one or more threshold values, to detect a continuous stop time of the touch event;

and determines whether the touch event ends at the same position according to the continuous stop time of the touch event.

19. The touch control chip of claim 18, wherein the determining unit determines whether the continuous stop time of the touch event is longer than a second predefined time;

and determines the touch event ends at the same position if the determined result is true.

20. The touch control chip of claim 19, wherein the detection unit compares the one or more signal values of the one or more detecting signals with the one or more threshold values, and writes a second bit combination into a sequence when the compared result indicates a break state, and it compares a number of consecutive times the second bit combination is written into the sequence with a second predefined number of times, to determine whether the continuous stop time of the touch event is longer than the second predefined time.

21. A touch control system, comprising:

a touch sense device, for generating one or more signal values of one or more detecting signals, and mapped to a screen according to absolute position; and

the touch control chip of claim 11, for determining a moving point gesture according to the one or more signal values of the one or more detecting signals generated by the touch sense device.

22. A computer system, comprising:

a screen, mapped to a touch sense device of the touch control system according to absolute position;

the touch control system of claim 21, for cooperating with the screen to determine a moving point gesture; and

a host, for receiving a packet of the moving point gesture from the touch control system to operate according to the moving point gesture.