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Three-dimensional object identifying system

  • US 6,603,867 B1
  • Filed: 08/30/1999
  • Issued: 08/05/2003
  • Est. Priority Date: 09/08/1998
  • Status: Expired due to Term
First Claim
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1. A three-dimensional object identifying system comprising:

  • a surface;

    a signal generating part that generates a modulation signal;

    a light emitting part that emits light based on said modulation signal to a three-dimensional object, the light emitting part being integral to the surface;

    a light receiving part that receives reflected light from said three-dimensional object and produces a detection signal, the light receiving part being integral to the surface;

    a detecting part that detects correlation information on the correlation between said detection signal and said modulation signal; and

    an identifying part that performs identifying processing for said three-dimensional object on the basis of both precataloged correlation information and said detected correlation information.

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