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Mobile object identification system

  • US 5,525,991 A
  • Filed: 02/24/1994
  • Issued: 06/11/1996
  • Est. Priority Date: 06/25/1992
  • Status: Expired due to Term
First Claim
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1. A responder which is attached to a movable object for writing data when receiving a write signal in a communication area of a writing interrogator and reading and transmitting data when receiving a read signal in said communication area of a reading interrogator, as said responder is moved with said movable object, said responder comprising:

  • data storage means for storing data;

    control means for controlling a process of writing data into said storage means, and for controlling a process of reading data from said data storage means; and

    status storage means for storing write completion status data when said control means controls said process of writing data to said data storage means in response to a first write signal from said writing interrogator;

    said control means invalidating said process of writing data to said data storage means when said control means receives a second write signal from said writing interrogator.

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