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Electric Field Sensor Device, Transceiver, Positional Information Obtaining System, and Information Input System

  • US 20080205904A1
  • Filed: 04/29/2008
  • Published: 08/28/2008
  • Est. Priority Date: 06/30/2003
  • Status: Abandoned Application
First Claim
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1. An information input system comprising:

  • electric field inducing means that is contacted or operated by an electric field transmission medium, and induces an electric field in said electric field transmission medium according to a physical quantity based on the contact or operation;

    a transceiver that receives the electric field induced in said electric field transmission medium, applies the electric field to a polarization modulator or an optical intensity modulator, polarization-modulates or optical intensity-modulates laser light according to the electric field, converts the polarization-modulated or optical intensity-modulated laser light into an electric signal, extracts an electric signal having a frequency component concerning a physical quantity based on said contact or operation from the converted electric signals, and outputs the electric signal concerning the physical quantity based on said contact or operation; and

    information processing means for inputting therein the electric signal concerning the physical quantity based on said contact or operation from said transceiver, and obtaining information corresponding to the physical quantity based on said contact or operation by said electric field transmission medium.

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