Self-calibrated path loss position estimation and zone of impact determination

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United States of America Patent

PATENT NO 7317419
APP PUB NO 20050285793A1
SERIAL NO

11156463

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A device and method are provided for estimating a position of a target device (e.g., a device emitting radio frequency energy) based on data pertaining to strength of an emission received from the target device. At a mobile device, emissions are received from the target device when the mobile device is at each of a plurality of positions to produce receive signal strength data representative thereof. The mobile device, also recieves signals from each of a plurality of reference devices at a corresponding known position when the mobile device is at each of the plurality of positions. The position of the target device is estimated based on receive signal strength data associated with received emissions from the target device and from the reference devices. Using the estimated position and estimated transmit power of the target device, a zone of impact of the target device is determined with respect to other wireless activity based on the estimated position and estimated transmit power of the target device.

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Patent Owner(s)

Patent OwnerAddress
CISCO TECHNOLOGY INC170 WEST TASMAN DRIVE SAN JOSE CA 95134

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sugar, Gary L Rockville, MD 75 5559
Tesfai, Yohannes Silver Spring, MD 26 1305

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