Multifunction slider

• US 20070296712A1
• Filed: 06/27/2006
• Published: 12/27/2007
• Est. Priority Date: 06/27/2006
• Status: Abandoned Application

• Current Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Li, Guanghai
• Application Number:
  US11/477,055
• Publication Number:
  US 20070296712A1
• Time in Patent Office: Days
• US Class Current: 345/184
• CPC Class Codes: G06F 3/0362 with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

An apparatus has conductive traces of a slider. A processing device is coupled to the conductive traces. The processing device generates a signal based on the presence of a conductive object in proximity or in contact with the slider, and the duration of time of the presence of the conductive object at a detected position on the slider.

Claims

1. An apparatus, comprising:

a plurality of conductive traces of a slider; and

a processing device coupled to the plurality of conductive traces, the processing device generating a signal based on a presence of a conductive device in proximity or in contact with the slider, and a duration of time of the presence of the conductive object at a detected position on the slider.

2. The apparatus of claim 1 wherein the slider has a plurality of regions, one or more of the conductive traces associated with a corresponding region.

3. The apparatus of claim 2 wherein the plurality of regions includes a right region, a middle region, and a left region, the detected position being in the right region, in the middle region, or in the left region.

4. The apparatus of claim 3 wherein a first type of operation is detected when the presence of the conductive object is detected, and the duration of time of the presence of the conductive object at the detected position is greater than a minimum duration of time and less than a first maximum duration of time.

5. The apparatus of claim 4 wherein a second type of operation is detected when the presence of the conductive object is detected, and an interval duration of time between the first type of operation and another first type of operation is less than a threshold interval duration of time.

6. The apparatus of claim 5 wherein a third type of operation is detected when the presence of the conductive object is detected, and the duration of time of the presence of the conductive object at the detected position is greater than a second maximum duration of time.

7. A method comprising:

providing a plurality of conductive traces of a slider; and

generating a signal based on a presence of a conductive object in proximity or in contact with the slider, and a duration of time of the presence of the conductive object at a detected position on the slider.

8. The method of claim 7 further comprising:

detecting the presence of the conductive object in proximity or in contact with the slider;

determining the detected position of the conductive object on the slider; and

measuring the duration of time of the presence of the conductive object at the detected position on the slider.

9. The method of claim 8 wherein detecting the presence of the conductive object on the slider further comprises:

measuring a capacitance variation of each conductive traces of the slider, the presence of the conductive object detected when the capacitance variation exceeds a predetermined threshold.

10. The method of claim 8 wherein determining the detected position of the conductive object on the slider further comprises:

measuring the capacitance variation between adjacent conductive traces of the slider;

interpolating a centroid position based of the measured capacitance variation.

11. The method of claim 7 wherein generating further comprises:

generating a first signal when the conductive object is coupled to a left region of the slider for a duration of time greater than a minimum duration of time and less than a first maximum duration of time.

12. The method of claim 7 wherein generating further comprises:

generating a second signal when the conductive object is coupled to a left region of the slider for a first duration of time greater than a minimum duration of time and less than a first maximum duration of time, a second duration of time greater than the minimum duration of time and less than the first maximum duration of time, an interval duration of time between the first duration of time and the second duration of time less than a threshold interval duration of time.

13. The method of claim 7 wherein generating further comprises:

generating a third signal when the conductive object is coupled to a left region of the slider for a duration of time greater than a second maximum duration of time, the second maximum duration of time greater than a first maximum duration of time.

14. The method of claim 7 wherein generating further comprises:

generating a first signal when the conductive object is coupled to a middle region of the slider for a duration of time greater than a minimum duration of time and less than a first maximum duration of time.

15. The method of claim 7 wherein generating further comprises:

generating a second signal when the conductive object is coupled to a middle region of the slider for a first duration of time greater than a minimum duration of time and less than a first maximum duration of time, a second duration of time greater than the minimum duration of time and less than the first maximum duration of time, an interval duration of time between the first duration of time and the second duration of time less than a threshold interval duration of time.

16. The method of claim 7 wherein generating further comprises:

generating a third signal when the conductive object is coupled to a middle region of the slider for a duration of time greater than a second maximum duration of time, the second maximum duration of time greater than a first maximum duration of time.

17. The method of claim 7 wherein generating further comprises:

generating a first signal when the conductive object is coupled to a left region of the slider for a duration of time greater than a minimum duration of time and less than a first maximum duration of time.

18. The method of claim 7 wherein generating further comprises:

generating a second signal when the conductive object is coupled to a left region of the slider for a first duration of time greater than a minimum duration of time and less than a first maximum duration of time, a second duration of time greater than the minimum duration of time and less than the first maximum duration of time, an interval duration of time between the first duration of time and the second duration of time less than a threshold interval duration of time.

19. The method of claim 7 wherein generating further comprises:

generating a third signal when the conductive object is coupled to a left region of the slider for a duration of time greater than a second maximum duration of time, the second maximum duration of time greater than a first maximum duration of time.

20. An apparatus, comprising:

means for detecting a presence of a conductive object in proximity or in contact with a slider;

means for determining a detected position of the conductive object on the slider; and

means for measuring a duration of time of the presence of the conductive object at the detected position;

means for generating a signal based on the presence of the conductive object, and the duration of time of the presence of the conductive object at the detected position on the slider.