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Qin; Zheng
Shanghai, CN
No. of patents:

Patent Number Title Of Patent Date Issued
8144125 Apparatus and method for reducing average scan rate to detect a conductive object on a sensing d March 27, 2012
An apparatus and method to reduce an average scan rate to detect a conductive object on a sensing device. The method may include detecting a presence of a conductive object in a first area of a sensing device using a first scan of the sensing device, and detecting the presence of the
8121283 Tapered capacitive sensing structure February 21, 2012
A touchpad has interleaved conductive traces across a touchpad surface. Each conductive trace has a first end and a second end. The width of the first end is larger than the width of the second end. The interleaved conductive traces have a first group of conductive traces alternated with
8111243 Apparatus and method for recognizing a tap gesture on a touch sensing device February 7, 2012
A method and apparatus to recognize a tap gesture on a sensing device. The method may include detecting a presence of a conductive object on a sensing device, determining a velocity of the detected presence of the conductive object, and recognizing a tap gesture based on the velocity.
8058937 Setting a discharge rate and a charge rate of a relaxation oscillator circuit November 15, 2011
An apparatus and method for setting a ratio of a discharge rate to a charge rate for measuring a capacitance on a sensor element of a sensing device. The apparatus may include a sensor element of a sensing device, a relaxation oscillator having a first and a second programmable current
8040321 Touch-sensor with shared capacitive sensors October 18, 2011
A method and apparatus to implement a touch-sensor device using shared capacitive sensors. The apparatus includes a first plurality of sensor elements coupled together, a second plurality of sensor elements coupled together independently of the first plurality of sensor elements, and a

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