Click Gesture Determination Method, Touch Control Chip, Touch Control System and Computer System

• US 20120162100A1
• Filed: 04/25/2011
• Published: 06/28/2012
• Est. Priority Date: 12/27/2010
• Status: Active Grant

• Current Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Original Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Inventors: Chang, Chun-Chieh, Lai, Chih-Chang
• Granted Patent: US 8,922,504 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

Disclosed is a click gesture determination method for a touch control chip capable of simply and flexibly determining a single click gesture. The click gesture determination method includes steps of comparing one or more signal values of one or more detecting signals with one or more threshold values, to determine whether a touch event occurs, continuing the above comparing if a touch event occurs, to detect a continuous occurrence time of the touch event, and comparing the continuous occurrence time with a first predefined time, and determining that a single click gesture occurs for a result of the comparison that the continuous occurrence time is longer than the first predefined time.

Claims

1. A click gesture determination method, comprising steps of:

comparing one or more signal values of one or more detecting signals with one or more threshold values, to determine whether a touch event occurs;

continuing the above comparing if a touch event occurs, to detect a continuous occurrence time of the touch event; and

comparing the continuous occurrence time with a first predefined time, and determining a single click gesture occurs if the continuous occurrence time is longer than the first predefined time.

2. The click gesture determination method of claim 1, wherein the step of determining the single click gesture occurs comprises determining the single click gesture occurs at a first leaving point at an end of the continuous occurrence time.

3. The click gesture determination method of claim 1, further comprising comparing the continuous occurrence time with a second predefined time, and determining the single click gesture occurs if the continuous occurrence time is shorter than the second predefined time, or otherwise determining the single click gesture does not occur.

4. The click gesture determination method of claim 1, further comprising comparing a distance between an entering point at a start of the continuous occurrence time and a first leaving point at an end of the continuous occurrence time with a predefined distance, to determine the single click gesture occurs if the distance is greater than the predefined distance, or otherwise determine the single click gesture does not occur.

5. The click gesture determination method of claim 3, further comprising comparing a distance between an entering point at a start of the continuous occurrence time and a first leaving point at an end of the continuous occurrence time with a predefined distance, to determine the single click gesture occurs if the distance is greater than the predefined distance, or otherwise determine the single click gesture does not occur.

6. The click gesture determination method of claim 1, further comprising:

further determining whether a second touch event concurrently occurs while comparing the one or more signal values of the one or more detecting signals with the one or more threshold values;

continuing the above comparing if a second touch event concurrently occurs, to detect a concurrent continuous occurrence time of the first touch event and the second touch event; and

comparing the concurrent continuous occurrence time with the first predefined time, and determining a second single click gesture occurs if the concurrent continuous occurrence time is longer than the first predefined time.

7. The click gesture determination method of claim 6, wherein the step of determining the second single click gesture occurs comprises determining the second single click gesture occurs at a second leaving point at an end of the concurrent continuous occurrence time.

8. The click gesture determination method of claim 6, further comprising comparing the concurrent continuous occurrence time with a second predefined time, and determining the second single click gesture occurs if the concurrent continuous occurrence time is longer than the first predefined time and shorter than the second predefined time, or otherwise determining the second single click gesture does not occur.

9. A touch control chip for a touch control system, comprising:

a detection unit, for comparing one or more signal values of one or more detecting signals with one or more threshold values, to determine whether a touch event occurs, and continuing the above comparing if a touch event occurs, to detect a continuous occurrence time of the touch event; and

a determining unit, for comparing the continuous occurrence time with a first predefined time, and determining a single click gesture occurs if the continuous occurrence time is longer than the first predefined time.

10. The touch control chip of claim 9, wherein the determining unit determines the single click gesture occurs at a first leaving point at an end of the continuous occurrence time.

11. The touch control chip of claim 9, wherein the determining unit further compares the continuous occurrence time with a second predefined time, and determines the single click gesture occurs if the continuous occurrence time is shorter than the second predefined time;

otherwise, the determining unit determines the single click gesture does not occur.

12. The touch control chip of claim 9, wherein the determining unit further compares a distance between an entering point at a start of the continuous occurrence time and a first leaving point at an end of the continuous occurrence time with a predefined distance, and determines the single click gesture occurs if the distance is greater than the predefined distance;

otherwise, the determining unit determines the single click gesture does not occur.

13. The touch control chip of claim 11, wherein the determining unit further compares a distance between an entering point at a start of the continuous occurrence time and a first leaving point at an end of the continuous occurrence time with a predefined distance, and determines the single click gesture occurs if the distance is greater than the predefined distance;

otherwise, the determining unit determines the single click gesture does not occur.

14. The touch control chip of claim 9, wherein

the detection unit further determines whether a second touch event concurrently occurs while comparing the one or more signal values of the one or more detecting signals with the one or more threshold values;

if a second touch event concurrently occurs, the detection unit continues the above comparing to detect a concurrent continuous occurrence time of the first touch event and the second touch event; and

the determining unit further compares the concurrent continuous occurrence time with the first predefined time, and determines a second single click gesture occurs if the concurrent continuous occurrence time is longer than the first predefined time.

15. The touch control chip of claim 14, wherein the determining unit determines the second single click gesture occurs at a second leaving point at an end of the concurrent continuous occurrence time.

16. The touch control chip of claim 14, wherein the determining unit further compares the concurrent continuous occurrence time with a second predefined time, and determines the second single click gesture occurs if the concurrent continuous occurrence time is longer than the first predefined time and shorter than the second predefined time;

otherwise, the determining unit determines the second single click gesture does not occur.

17. A touch control system, comprising:

a touch sensing device, for generating one or more signal values of one or more detecting signals; and

the touch control chip of claim 9, for receiving the one or more detecting signals generated by the touch sensing device, to determine whether a single click gesture occurs.

18. A computer system, comprising:

a host; and

the touch control system of claim 17, for determining whether a single click gesture occurs, and sending a determining signal to the host.