Apparatus and method for verifying a shelf tag

Details Apparatus and method for verifying a shelf tag Apparatus and method for verifying a shelf tag

1996-07-15

1998-02-24

Evans, F. L.

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

057214212

ABSTRACT:
A shelf tag verifying apparatus having a portable terminal unit in radio communication with a base station and in acoustic wave communication with a nearby bar code reader. The bar code reader reads a bar code printed upon a product which rests upon shelving marked by a tag requiring verification. A decoder mounted within the bar code reader generates a binary product code corresponding to the bar code and appends a check code. A SAWR transmitter then transmits the binary product code and the check code to an ASH receiver mounted in the terminal unit. A microprocessor mounted in the terminal unit verifies the check code and generates a query for radio transmission to the base station, whereupon the base station responds with information for verification of the shelf tag.

REFERENCES:
patent: 4086477 (1978-04-01), Cowardin et al.
patent: 5157687 (1992-10-01), Tymes
patent: 5365050 (1994-11-01), Worthington et al.
patent: 5410141 (1995-04-01), Koenck et al.
"New UHF Receiver Architecture Achieves High Sensitivity and Very Low Power Consumption", Darrel Lash, Published at RF Expo West, Jan. 1995.

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