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Method and corresponding system for hand-held rf tag locator

  • US 20060181393A1
  • Filed: 07/27/2004
  • Published: 08/17/2006
  • Est. Priority Date: 07/29/2003
  • Status: Abandoned Application
First Claim
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1. A method for locating at least one radio frequency (RF) tag, the method comprising the steps of:

  • (a) providing a locating device having a means for identifying said at least one RF tag, (b) transmitting a directional transmit command signal to said at least one RF tag by using said locating device, wherein said locating device includes a directional antenna, (c) said at least one RF tag waiting to receive said transmit command signal, (d) upon receiving said transmit command signal, transmitting by said at least one RF tag, at least one response signal in synchronization with said transmit command signal, and (e) receiving said at least one response signal, by said locating device, measuring round trip delay and amplitude of said at least one received response signal.

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