Patent ID: 7428469
Filing Date: 2008-09-23
Classification: G06F

Abstract:
1. A three-dimensional-information detecting system comprising: three-dimensional-information inputting means including a plurality of input coils for inputting three-dimensional information; a plurality of sensor coils provided along a detecting surface so as to intersect one another, the sensor coils being electromagnetically coupled with the plurality of input coils; selecting means which selects sensor coils from among the plurality of sensor coils in a coil-switching manner; signal generating means which uses electromagnetic coupling to generate signals to be transmitted and received between the plurality of input coils and the selected sensor coils; signal detecting means which detects signals received by the selected sensor coils or the plurality of input coils; and calculating means which, based on the signals detected by the signal detecting means, calculates thee-dimensional information of the three-dimensional-information inputting means in three-dimensional space, wherein: in the three-dimensional-information inputting means, the plurality of input coils include first, second, and third input coils; and the central axes of the first, second, and third input coils are at right angles to one another so as not to magnetically interfere with one another and so as not to directly intersect one another.