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United States of America Patent
Stats
-
Jul 22, 2008
Grant Date -
Sep 29, 2005
app pub date -
Feb 17, 2005
filing date -
Feb 17, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations Is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
First Claim
Other Claims data not available
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 28 Citation Count
- H04Q Class
- 43.69 % this patent is cited more than
- 17 Age
