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System for the identification and automatic detection of vehicles or objects

  • US 5,661,473 A
  • Filed: 11/18/1994
  • Issued: 08/26/1997
  • Est. Priority Date: 05/26/1992
  • Status: Expired due to Fees
First Claim
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1. A system for the identification and automatic detection of objects, comprising:

  • an electronic label installed in each of said objects, each electronic label having means for memorizing an identification code assigned to an object in which said electronic label is installed, and radioelectrical transmission and reception means for automatically transmitting said identification code upon receipt of a prompt signal; and

    at least one mobile reader disposed exterior to said objects and movable within a vicinity thereof, each of said at least one mobile reader includinga recording memory for recording a file of identification codes of said objects to be identified;

    radioelectrical means for transmitting said prompt signal to said radioelectrical transmission and reception means of at least one of said objects which prompts each of said radioelectrical transmission and reception means to transmit an identification code assigned to an object in which it is installed to said radioelectrical means;

    comparison means for comparing said identification codes recorded in said file with said identification code transmitted by each of said radioelectrical transmission and reception means; and

    reporting means for reporting the presence of any of said objects whose identification code appears in said file of said recorded memory and was transmitted by said radioelectrical transmission and reception means, as determined by said comparison means.

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