Patent ID: 7864165
Filing Date: 2011-01-04
Classification: G06F

Abstract:
1. An apparatus for detecting position, comprising: a frame comprising a first portion, a second portion, a third portion, and a fourth portion, wherein the first portion, the second portion, the third portion, and the fourth portion are different from each other; a plurality of first signal sources disposed along said first and said second portions, said plurality of first signal sources emitting signals configured to detect a coordinate in a first direction; a plurality of first signal receivers disposed along said third and said fourth portions and corresponding to said plurality of first signal sources, said plurality of first signal receivers configured to receive signals from said plurality of first signal sources respectively; a plurality of second signal sources disposed along said first and said fourth portions, said plurality of second signal sources emitting signals configured to detect a coordinate in a second direction, wherein a portion of said plurality of second signal sources and a portion of said plurality of first signal sources are interposed among each other at said first portion, and a portion of said plurality of second signal sources and a portion of said plurality of first signal receivers are interposed among each other at said fourth portion; a plurality of second signal receivers disposed along said second and said third portions and corresponding to said plurality of second signal sources, said plurality of second signal receivers configured to receive signals from said plurality of second signal sources respectively, wherein a portion of said plurality of second signal receivers and a portion of said plurality of first signal sources are interposed among each other at said second portion, and a portion of said plurality of second signal receivers and a portion of said plurality of first signal receivers are interposed among each other at said third portion; and a processor coupled with said first and said second signal receivers, wherein when an object is set in a position within said frame, said processor determines said position of said object according to locations of said first and said second signal receivers and strength variation of signals received by said first and said second signal receivers.