Inventory control system using R.F. object identification
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 16, 2004
Grant Date -
Jul 17, 2003
app pub date -
Feb 17, 2000
filing date -
Sep 25, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An object circuit for use in an r.f. identification system for locating a specific object by generating identification signals of a specific frequency assigned to a given object, said object circuit including a receiving antenna, a crystal coupled to said receiving antenna, said crystal having a resonant frequency equal to the frequency assigned to the associated object, and circuitry coupled to said crystal for responding to a signal of said assigned frequency received by said object circuit.
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