Touch pad and method for regulating sensitivity of the touch...

Details Touch pad and method for regulating sensitivity of the touch... Touch pad and method for regulating sensitivity of the touch...

2007-12-20

2011-11-22

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018010, C178S018030, C178S020010

Reexamination Certificate

active

08063891

ABSTRACT:
A touch pad includes a touch sensor, a touch detection unit, an atmospheric pressure detection unit, and an atmospheric pressure compensation unit. The touch sensor detects a touch input from users, and generates analog signals. The touch detection unit amplifies the analog signals by a controllable gain to generate amplified analog signals, converts the amplified analog signals to digital signals, and sends the digital signals to the processor to determine a touch location. The atmospheric pressure detection unit measures ambient atmospheric pressure, and generates an atmospheric pressure level. The atmospheric pressure compensation unit generates a gain regulation signal corresponding to the atmospheric pressure level to control the touch detection unit to regulate the controllable gain. A related method for regulating sensitivity of the touch pad is also provided.

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patent: 2008/0252613 (2008-10-01), Chuang

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