APPARATUS FOR DETECTING POSITION BY INFRARED RAYS AND TOUCH PANEL USING THE SAME
First Claim
1. An apparatus for detecting a position by infrared (IR) rays, comprising:
- a plurality of IR sources configured along a frame for transmitting IR signals in at least two dimensions, and the IR signals in each dimension comprising two sets of IR signals running contrarily in direction;
a plurality of receivers interlacedly configured with the plurality of IR sources for receiving the IR signals from the corresponding IR sources, wherein when the IR signals in one direction of one dimension are subject to interference, the IR signals in the other direction of the dimension are still measured by the corresponding receivers; and
a processor electrically coupled to the receivers, wherein 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.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
10 Claims
-
1. An apparatus for detecting a position by infrared (IR) rays, comprising:
-
a plurality of IR sources configured along a frame for transmitting IR signals in at least two dimensions, and the IR signals in each dimension comprising two sets of IR signals running contrarily in direction; a plurality of receivers interlacedly configured with the plurality of IR sources for receiving the IR signals from the corresponding IR sources, wherein when the IR signals in one direction of one dimension are subject to interference, the IR signals in the other direction of the dimension are still measured by the corresponding receivers; and a processor electrically coupled to the receivers, wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification