Electronic tag location systems

Details Electronic tag location systems Electronic tag location systems

1991-09-10

1993-09-14

Envall, Jr., Roy N.

Boots, shoes, and leggings

235383, 34082535, G07G 112, G06F 704, G06K 1500

Patent

active

052455343

ABSTRACT:
Methods and apparatus are disclosed for locating electronic price tags in an electronic pricing system for use in retail environments. A host communicates with tags via a serial data bus, with identifier or switch chips geographically located within the system, each identifier or switch chip mediating communications between the host and a subset of the tags. By particular messages exchanged between tags and identifiers or switches, and by particular messages exchanged between identifiers or switches and the host, the host is able to confirm the geographic location of a particular tag.

REFERENCES:
patent: 4372464 (1983-02-01), Otten

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