Item identification tag for rapid inventory data acquisition system
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United States of America Patent
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Aug 29, 1989
Issued Date -
N/A
app pub date -
Mar 20, 1987
filing date -
Dec 29, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computerized transceiver repeatedly sweeps through a set of transmit/receive frequencies to interrogate collectively a plurality of groups of items in a stocking area. Items in each group are tagged with a printed circuit transponder tuned to frequencies uniquely assigned to each group. Data returned is stored and combined mathematically by the computer to arrive at the total number of items in each group. The system is particularly adapted for taking inventory of a large number of retail shelf goods using a mobile transceiver.
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