Touch Screen
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United States of America Patent
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Issued Date -
Apr 30, 2009
app pub date -
Oct 27, 2008
filing date -
Oct 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides the system design of the positioning analysis of a touch screen. It receives the signals from the wave sensor that employs the concept of the reflection of the light, sound, or supersonic, and the signals are calculated by the core logic circuit to obtain the position coordinate of an object. And then a display module is employed to show the moving path of the object in the manner of an image or line on a screen. The wave sensor may be implemented by a CMOS optical image sensor, infrared sensor, or supersonic sensor. The CMOS (Complementary metal oxide semiconductor) optical image sensor may additionally comprise fibers to transmit the optical wave to the CMOS sensor smoothly.
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