Electronic device and touch-sensing method

Patent metadata

Field	Value
Publication number	US-9298304-B2
Application number	US-201213606026-A
Country	US
Kind code	B2
Filing date	Sep 7, 2012
Priority date	Oct 12, 2011
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

An electronic device and a corresponding touch-sensing method are provided. The electronic device includes a display module integrated with a first touch sensor, a second touch sensor, and a sense circuitry. The first touch sensor generates a first sensing signal in response to a first driving signal. The second touch sensor generates a second sensing signal in response to a second driving signal. The sense circuitry is coupled to the first and the second touch sensors. The sense circuitry receives and analyzes the first sensing signal and the second sensing signal.

First claim

What is claimed is:

1. An electronic device, comprising:
a display module integrated with a first touch sensor, wherein the first touch sensor generates a first sensing signal in response to a first driving signal;
a second touch sensor, generating a second sensing signal in response to a second driving signal;
a drive circuitry, coupled to the display module and the first touch sensor, the drive circuitry generating the first driving signal to drive the first touch sensor when instructed by a sense circuitry and driving the display module for displaying an image; and
the sense circuitry, coupled to the first and the second touch sensors, the sense circuitry generating the second driving signal to drive the second touch sensor,
the sense circuitry receiving and analyzing the first sensing signal to sense a touch on the first touch sensor and
the sense circuitry receiving and analyzing the second sensing signal to sense a touch on the second touch sensor;
wherein the drive circuitry to provide the first driving signal to the first touch sensor according to a first frequency, and the sense circuitry provides the second driving signal to the second touch sensor according to a second frequency, the first frequency and the second frequency are different.

2. The electronic device of claim 1 , wherein the sense circuitry provides the first driving signal to the first touch sensor according to a first timing and provides the second driving signal to the second touch sensor according to a second timing, the first timing and the second timing are different.

3. The electronic device of claim 1 , wherein the sense circuitry simultaneously sends the first and the second driving signals through a same output terminal to the first and the second touch sensors, respectively.

4. The electronic device of claim 1 , wherein the sense circuitry comprises:
a first receiver coupled to the first touch sensor, receiving the first sensing signal;
a second receiver coupled to the second touch sensor, receiving the second sensing signal; and
a transmitter coupled to the first and the second touch sensors and the first and the second receivers, sending the first driving signal to the first touch sensor and sending a control signal to trigger the first receiver to receive the first sensing signal, sending the second driving signal to the second touch sensor and sending the control signal to trigger the second receiver to receive the second sensing signal.

5. The electronic device of claim 1 , wherein the sense circuitry instructs the drive circuitry to provide the first driving signal to the first touch sensor according to a first timing, the sense circuitry provides the second driving signal to the second touch sensor according to a second timing, the first timing and the second timing are different.

6. A touch-sensing method for an electronic device having
a display module integrated with a first touch sensor, a second touch sensor, a drive circuitry, coupled to the display module and the first touch sensor, and
a sense circuitry coupled to the first and second touch sensor, comprising
the sense circuitry configured to:
instruct a first driving signal to be provided to the first touch sensor by the drive circuitry according to a first frequency;
provide a second driving signal to drive the second touch sensor according to a second frequency;
receive and analyze a first sensing signal generated by the first touch sensor in response to the first driving signal sensor;
receive and analyze a second sensing signal generated by the second touch sensor in response to the second driving signal sensor,
wherein the first frequency and the second frequency are different.

7. The touch-sensing method of claim 6 , further comprising:
driving the display module to display an image by a drive circuitry.

8. The touch-sensing method of claim 7 , further comprising:
instructing the drive circuitry to provide the first driving signal to the first touch sensor according to a first timing; and
providing the second driving signal to the second touch sensor according to a second timing, wherein the first timing and the second timing are different.

9. The touch-sensing method of claim 6 , furthering comprising:
providing the first driving signal to the first touch sensor according to a first timing; and
providing the second driving signal to the second touch sensor according to a second timing, wherein the first timing and the second timing are different.

10. The electronic device of claim 6 , wherein the sense circuitry simultaneously sends the first and the second driving signals through a same output terminal to the first and the second touch sensors, respectively.

11. The touch-sensing method of claim 6 , further comprising:
sending the first driving signal to the first touch sensor and sending a control signal to trigger the receiving of the first sensing signal; and
sending the second driving signal to the second touch sensor and sending the control signal to trigger the receiving of the second sensing signal.

Assignees

• Lo Pi-Lin
• Chen Te-Mu
• Liu Cheng-Hsi
• Hsueh Yi-Fan
• Htc Corp

Inventors

• Lo Pi-Lin
• Chen Te-Mu
• Liu Cheng-Hsi
• Hsueh Yi-Fan

Classifications

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F2203/04803

  Split screen, i.e. subdividing the display area or the window area into separate subareas · CPC title

• G06F3/04886

  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 · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title