Object locator system

Details Object locator system Object locator system

2005-06-07

2005-06-07

Pihulic, Daniel (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With electromagnetic wave

C367S002000

Reexamination Certificate

active

06904000

ABSTRACT:
This invention is a system for locating an object. A tag unit (100) that is attached or embedded into the object to be located generates radio frequency signals when excited by an ultrasonic wave (108). The locator unit (100) generates the ultrasonic wave (108) and receives radio frequency signals from the tag unit (110). The locator unit (100) determines the signal strength of the received radio frequency signal and provides a representation of the strength. By monitoring the signal strength indication, the user will be directed to the object.

REFERENCES:
patent: 5528232 (1996-06-01), Verma et al.
patent: 6075442 (2000-06-01), Welch
patent: 6246322 (2001-06-01), LeDain et al.
patent: 6297737 (2001-10-01), Irvin
patent: 6535108 (2003-03-01), Schrott et al.
patent: 2002/0067660 (2002-06-01), Bokhour

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