Two dimension RF location method and apparatus

Details Two dimension RF location method and apparatus Two dimension RF location method and apparatus

2006-10-24

2006-10-24

Crosland, Donnie L. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S573100, C340S573300, C119S455000, C119S712000

Reexamination Certificate

active

07126471

ABSTRACT:
A system for generating information identifying a two-dimensional location of objects in within a space includes a plurality of wireless modules and first and second transceiver systems. Each of the plurality of wireless modules corresponds to one of the objects. The first and second radio transceiver systems are spaced apart by a predetermined distance and are disposed proximate the space. The first and second radio transceiver systems are operable to selectively transmit a signal to select wireless module, receive a response signal from the select wireless module, and generate first information based on a detected relationship between the selective transmission and the receipt of the response signal. The system further includes a device operable to calculate a two-dimensional location of the select wireless module based on the first information generated by the first radio transceiver system and the first information generated by the second radio transceiver system.

REFERENCES:
patent: 5218344 (1993-06-01), Ricketts
patent: 5552772 (1996-09-01), Janky et al.
patent: 6369710 (2002-04-01), Poticny et al.
patent: 6774797 (2004-08-01), Freathy et al.
patent: 6998980 (2006-02-01), Ingley et al.

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