05231273 is referenced by 154 patents and cites 11 patents.

An inventory management system which includes a transponder, an interrogation transceiver and control devices utilized therewith. The control devices operate to minimize the power consumption of the transponder while permitting selected, coded operation of the inventory management system. The interrogation transceiver provides linkage to the transponder by means of a modulated radio frequency (RF) carrier during system operation. A transmit/receive switch is also included in the invention to prevent harmful coupling between the transponder receiver and the transponder transmitter. This could occur during data exchanges between the transponder and the interrogation receiver.

Title
Inventory management system
Application Number
7/682721
Publication Number
5231273
Application Date
April 9, 1991
Publication Date
July 27, 1993
Inventor
Marcus P Escobosa
Placentia
CA, US
Herbert J Moore
Anaheim
CA, US
Robert L Caswell
Fullerton
CA, US
Agent
G Donald Weber Jr
Assignee
Comtec
CA, US
IPC
G08B 5/22
G06F 15/24
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