Geolocation system with controllable tags enabled by...

Details Geolocation system with controllable tags enabled by... Geolocation system with controllable tags enabled by...

2005-02-22

2005-02-22

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Spread spectrum

C375S140000, C375S146000, C375S147000, C375S142000, C375S343000

Reexamination Certificate

active

06859485

ABSTRACT:
An auxiliary wireless communication mechanism is incorporated into a system that geolocates tagged objects within a monitored environment, using random, repetitive spread spectrum emissions from the tags. The emissions are detected at tag emission readers, and processed by an object location processor to geolocate the tagged objects. The auxiliary wireless communication mechanism transmits a return spread spectrum signal containing information intended for a tag immediately in response to the object location processor geolocating the tag. This immediately returned spread spectrum transmission allows a reduced complexity spread spectrum receiver within the tag to despread the return signal without having to determine the timing of the clock signal used to produce it.

REFERENCES:
patent: 5506864 (1996-04-01), Schilling
patent: 5663956 (1997-09-01), Schilling
patent: 5745037 (1998-04-01), Guthrie et al.
patent: 5825835 (1998-10-01), Kingston et al.
patent: 5844482 (1998-12-01), Guthrie et al.
patent: 5920261 (1999-07-01), Hughes et al.
patent: 5920287 (1999-07-01), Belcher et al.
patent: 5959568 (1999-09-01), Woolley
patent: 5995046 (1999-11-01), Belcher et al.
patent: 6005886 (1999-12-01), Short
patent: 6236365 (2001-05-01), LeBlanc et al.
patent: 6362737 (2002-03-01), Rodgers et al.

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