Altitude-based indoor or outdoor detection

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United States of America Patent

PATENT NO 9998874
SERIAL NO

15276486

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Abstract

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Using estimates of a receiver's altitude to determine where a receiver is located and to refine a positioning system's estimate of a receiver's position. Systems and methods determine whether a receiver is inside or outside a building, and may use the determination to confirm or adjust an initial estimate of the receiver's position. Various approaches for making the determination and for assessing the initial estimate of the receiver's position are described.

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Patent Owner(s)

Patent OwnerAddress
FORTRESS CREDIT CORP AS AGENT1345 AVENUE OF THE AMERICAS 46TH FLOOR NEW YORK NY 10105

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Joseph, Deepak Oakton, US 31 264
Raghupathy, Arun Bangalore, IN 113 1693
Sendonaris, Andrew Los Gatos, US 51 914

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