Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1994-01-04
1996-11-05
Tung, Kee M.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455 491, 40 5, 34082572, 345 2, 235383, G06F 1500
Patent
active
055726534
ABSTRACT:
A system for communicating between a store computer and locations in the aisles of a retail facility. A hard wired grid connects the store computer to a plurality of transceivers located in zones throughout the facility and the transceivers establish a wireless link to the locations. One embodiment is a product information display system in which the locations are fixed information display terminals, such as price displaying shelf tags. Another embodiment is an item tracking system, in which the locations are movable shopping carts or baskets.
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Abell Peter
Bird E. Frederick
DeTemple William C.
Goff Milton L.
REST Manufacturing, Inc.
Tung Kee M.
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