Multi-function touchpad

• US 20080012832A1
• Filed: 07/13/2006
• Published: 01/17/2008
• Est. Priority Date: 07/13/2006
• Status: Abandoned Application

• Current Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: GuangHai, Li
• Application Number:
  US11/487,056
• Publication Number:
  US 20080012832A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A method and apparatus is disclosed herein for providing a touch-sensor device. In one embodiment, the method includes receiving absolute positioning data indicative of movement of a presence of a conductive object across a touch sensor pad in one of a plurality of directions relative to a function point. In one embodiment, the function point is at least one of a physical button or a virtual button of the touch sensor pad disposed in a region of the touch sensor pad configured to receive absolute positioning data. The method further includes processing a function when the movement accompanies detection of the conductive object at the function point.

Claims

1. A method, comprising:

receiving absolute positioning data indicative of movement of a presence of a conductive object across a touch sensor pad in one of a plurality of directions relative to a function point, wherein the function point is at least one of a physical button or a virtual button of the touch sensor pad disposed in a region of the touch sensor pad configured to receive absolute positioning data;

processing a function when the movement accompanies detection of the conductive object at the function point.

2. The method of claim 1, wherein the processing a function when the movement accompanies detection of the conductive object at the function point further comprises:

detecting data indicative of a selection by a user of the function point of the touch sensor pad;

detecting absolute positioning data indicative of a movement of a presence of a conductive object, across the touch sensor pad, away from the function point, after detecting data indicative of the selection by the user of the function point;

determining in which direction the movement is detected; and

processing the function based on which direction the movement was determined.

3. The method of claim 2, wherein the function is a scroll function when the direction is determined to be one of a vertical or a horizontal direction across the touch sensor pad.

4. The method of claim 2, wherein the function is a browser function when the direction is determined to be a diagonal direction across the touch sensor pad.

5. The method of claim 1, wherein the processing a function when the movement accompanies detection of the conductive object at the function point further comprises:

detecting absolute positioning data indicative of a movement of a presence of a conductive object, across the touch sensor pad, toward the function point of the touch sensor pad;

detecting data indicative of a selection by a user of the function point of the touch sensor pad, after detecting data indicative of the movement of the presence of the conductive object;

determining in which direction the movement was detected; and

processing the function based on which direction the movement was detected.

6. The method of claim 1, further comprising:

receiving data indicative of the presence of the conductive object at the function point without being accompanied by movement of the presence of the conductive object across the touch sensor pad; and

processing a corner function.

7. The method of claim 1, wherein the area defined by the function point of the touch sensor pad is visually distinguished on the touch sensor pad.

8. The method of claim 1, wherein the area defined by the function point of the touch sensor pad is physically distinguished on the touch sensor pad.

9. The method of claim 1, wherein the absolute positioning data indicative of movement of a presence of a conductive object is input data for the function.

10. An apparatus, comprising:

a touch sensing device having a touch sensor pad and a function point, wherein the function point is at least one of a physical button or a virtual button of the touch sensor pad disposed in a region of the touch sensor pad configured to receive absolute positioning data; and

a processing logic coupled with the touch sensing device, the processing logic to;

receive absolute positioning data indicative of movement of a presence of a conductive object across a touch sensor pad in one of a plurality of directions relative to a function point;

process a function when the movement accompanies detection of the conductive object at the function point.

11. The apparatus of claim 10, wherein the processing logic to process a function when the movement accompanies detection of the conductive object at the function point further comprises:

the processing logic to;

detect data indicative of a selection by a user of the function point of the touch sensor pad;

detect absolute positioning data indicative of a movement of a presence of a conductive object, across the touch sensor pad, away from the function point, after data indicative of the selection by the user of the function point is detected;

determine in which direction the movement is detected; and

process the function based on which direction the movement was determined.

12. The apparatus of claim 11, wherein the function is a scroll function when the direction is determined to be one of a vertical or a horizontal direction across the touch sensor pad.

13. The apparatus of claim 12, wherein the function is a browser function when the direction is determined to be a diagonal direction across the touch sensor pad.

14. The apparatus of claim 10, wherein the processing logic to process a function when the movement accompanies detection of the conductive object at the function point further comprises:

the processing logic to;

detect absolute positioning data indicative of a movement of a presence of a conductive object, across the touch sensor pad, toward the function point of the touch sensor pad;

detect data indicative of a selection by a user of the function point of the touch sensor pad, after data indicative of the movement of the presence of the conductive object is detected;

determine in which direction the movement was detected; and

process the function based on which direction the movement was detected.

15. The apparatus of claim 10, further comprising:

the processing logic to;

receive data indicative of the presence of the conductive object at the function point without being accompanied by movement of the presence of the conductive object across the touch sensor pad; and

processing a corner function.

16. The apparatus of claim 10, wherein the area defined by the function point of the touch sensor pad is visually distinguished on the touch sensor pad.

17. The apparatus of claim 10, wherein the area defined by the function point of the touch sensor pad is physically distinguished on the touch sensor pad.

18. The apparatus of claim 10, wherein the absolute positioning data indicative of movement of a presence of a conductive object is input data for the function.

19. An apparatus, comprising:

means for receiving absolute positioning data indicative of a movement of a conductive object across a touch sensor pad; and

means for processing a function based on the absolute positioning data indicative of the movement of the conductive object when the movement originates or terminates in a region of the touch sensor pad, the region disposed within an area of the touch sensor pad for receiving absolute positioning data.

20. The apparatus of claim 19, wherein the means for processing the function further comprising:

means for processing a first type of function when the movement of the conductive object originates in the region of the touch sensor pad; and

means for processing a second type of function when the movement of the conductive object terminates in the region of the touch sensor pad.