APPARATUS FOR DETECTING POSITION BY INFRARED RAYS AND TOUCH PANEL USING THE SAME
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United States of America Patent
Stats
-
N/A
Issued Date -
Mar 28, 2013
app pub date -
May 22, 2012
filing date -
Sep 26, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus for detecting a position by infrared rays is disclosed. The apparatus includes a plurality of IR sources, a plurality of receivers and a processor electrically coupled to the receivers. The IR sources and the receivers are interlacedly configured along a frame. The IR sources emit IR signals in at least two dimensions, and the IR sources in each dimension comprise two sets of IR signals running contrarily in direction. The receivers receive the IR signals from the corresponding IR sources. Even if the IR signals in one direction of one dimension are subject to interference, the IR signals in the other direction of the dimension can still be measured by the corresponding receivers. When at least one object is set in at least one position within the frame, the processor determines the position according to the coordinates of the receivers and strength variations of the received IR signals.
First Claim
Other Claims data not available