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Identifying an object

  • US 6,980,797 B1
  • Filed: 06/28/2000
  • Issued: 12/27/2005
  • Est. Priority Date: 06/30/1999
  • Status: Expired due to Term
First Claim
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1. A method of identifying an object having an identification means, comprisinggenerating and transmitting an authorization signal indicating the timeslot or timeslots allowed for the transmission of an identification request signal,receiving at a mobile station of a time division mobile communication system, in which the frequency channels used by the system are divided into timeslots, the authorization signal indicating the timeslot or timeslots allowed for transmission of the identification request signal,reading the object'"'"'s identification data from the identification means by transmitting said identification request signal by the mobile station'"'"'s radio transmitter to said identification means in the timeslot indicated by said authorization signal, and receiving an identification signal by the mobile station'"'"'s radio receiver or by the mobile station'"'"'s infrared receiver from said identification means, andidentifying said object on the basis of the identification data included in the identification signal.

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