Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-08-21
2007-08-21
Nguyen, Duc M. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S404200, C342S357490
Reexamination Certificate
active
10783186
ABSTRACT:
A wireless node RF Fingerprinting location mechanism that uses multiple antenna patterns to enhance the accuracy of wireless node location in an RF environment. In one implementation, substantially non-overlapping antenna pattern diversity is used to provide a degree of sectorization in computing the estimated location of a wireless node.
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Bulusu, N., Heidemann, J., Estrin, D. “GPS-less Low Cost Outdo
Dietrich Paul F.
Friday Robert J.
Addy Anthony S.
Airespace, Inc.
Nguyen Duc M.
Spolyar Mark J.
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