Handheld device and control method thereof

• US 10,203,774 B1
• Filed: 07/20/2017
• Issued: 02/12/2019
• Est. Priority Date: 07/20/2017
• Status: Active Grant

• Current Assignee: PixArt Imaging Incorporated
• Original Assignee: PixArt Imaging Incorporated
• Inventors: Su, Tse-Chung
• Primary Examiner(s): Sherman, Stephen G
• Application Number:
  US15/655,340
• Publication Number:
  US 20190025942A1
• Time in Patent Office: 572 Days
• Field of Search: 345163-166
• CPC Class Codes: G06F 3/0354 with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04186 Touch location disambiguation

Abstract

A handheld device including: a body with an operating surface; a touch sensor for sensing a touch on the operating surface to output a touch signal; a displacement sensor configured with the body for sensing a displacement of the body to output a displacement signal; and a processor receiving the touch signal to respectively generate a control command and disable the touch signal for a first time duration when the displacement signal is larger than a moving threshold.

Claims

1. A handheld device, comprising:

a body with an operating surface;

a touch sensor for sensing a touch on the operating surface to output a touch signal;

a displacement sensor configured with the body for sensing a displacement of the body to output a displacement signal; and

a processor receiving the touch signal to respectively generate a control command and disable the touch signal for a first time duration when the displacement signal is larger than a moving threshold;

wherein when the processor determines that the displacement signal is larger than the moving threshold, the processor accumulates a plurality of displacement signals during a moving time duration and compares the accumulated displacement signals to the moving threshold; and

wherein the moving threshold is set as one of a plurality of moving threshold values based on an operating mode of the handheld device.

2. The handheld device according to claim 1, wherein when the processor disables the touch signal, the processor stops generating the control command for the first time duration.

3. The handheld device according to claim 1, wherein when the processor disables the touch signal, the processor stops receiving the touch signal for the first time duration.

4. The handheld device according to claim 1, wherein when the processor disables the touch signal, the processor resets the received touch signal to indicate no-touch for the first time duration.

5. The handheld device according to claim 1, wherein when the displacement signal is larger than the moving threshold, the processor disables the touch sensor for the first time duration.

6. The handheld device according to claim 1 further comprising:

at least one button connected to the processor and which outputs a button signal to the processor while being pressed;

wherein the processor determines that the button is pressed so as to disable the touch signal for a second time duration and to output a button control signal.

7. The handheld device according to claim 1, wherein the moving threshold is stored in a storage unit.

8. The handheld device according to claim 7, wherein the storage unit includes the plurality of moving threshold values.

9. The handheld device according to claim 1, wherein the moving time duration is stored in a storage unit.

10. The handheld device according to claim 9, wherein the storage unit includes a plurality of moving time duration values, and the moving time duration is set as one of the plurality of moving time duration values based on the operating mode of the handheld device.

11. A control method applied to a handheld device having a body with an operating surface, a touch sensor, a displacement sensor, and a processor, the processor executing the method comprising:

receiving a touch signal transmitted by the touch sensor for sensing a touch on the operating surface to generate a control command;

disabling the touch signal for a first time duration when a displacement signal transmitted by the displacement sensor for sensing a displacement of the body is larger than a moving threshold;

wherein when the processor determines that the displacement signal is larger than the moving threshold, the processor accumulates a plurality of displacement signals during a moving time duration and compares the accumulated displacement signals to the moving threshold; and

wherein the moving threshold is set as one of a plurality of moving threshold values based on an operating mode of the handheld device.

12. The control method according to claim 11, wherein when the processor disables the touch signal, the processor stops generating the control command for the first time duration.

13. The control method according to claim 11, wherein when the processor disables the touch signal, the processor stops receiving the touch signal for the first time duration.

14. The control method according to claim 11, wherein when the processor disables the touch signal, the processor resets the received touch signal to 0 for the first time duration.

15. The control method according to claim 11, wherein when the displacement signal is larger than the moving threshold, the processor disables the touch sensor for the first time duration.

16. The control method according to claim 11, further comprising:

determining that at least one button is pressed so as to disable the touch signal for a second time duration and to output a button control signal;

wherein the button outputs a button signal to the processor while being pressed.

17. The control method according to claim 11, wherein the moving threshold is stored in a storage unit.

18. The control method according to claim 17, wherein the storage unit includes the plurality of moving threshold values.

19. The control method according to claim 11, wherein the moving time duration is stored in a storage unit.

20. The control method according to claim 19, wherein the storage unit includes a plurality of moving time duration values, and the moving time duration is set as one of the plurality of moving time duration values based on the operating mode of the handheld device.