Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-12-26
2006-12-26
Kincaid, Lester G. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456500, C455S410000, C707S793000
Reexamination Certificate
active
07155239
ABSTRACT:
A method for estimating a location of a wireless device in a wireless local network is provided. The method includes forming a first set comprised of the signal strength received from access points that the wireless device received a signal from and an indicator of no signal strength measured for access points that the wireless device did not receive a signal from. Next, a scan subset can be formed comprised of access points in the first set that has associated signal strength. Next, a cluster comprised of the calibration points can be formed based on the scan subset. A distance between the first set and each of the calibration point in the cluster can be calculated. Then, the smallest distance can be selected as the location estimate.
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Goren David P.
Vu Hoai Xuan
Zeng Guang
Ingrassia Fisher & Lorenz P.C.
Kincaid Lester G.
Shedrick Charles
Symbol Technologies Inc.
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