Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2011-06-07
2011-06-07
Dao, Minh D (Department: 2618)
Multiplex communications
Communication over free space
Repeater
C370S503000, C370S507000, C342S387000, C455S456500
Reexamination Certificate
active
07957336
ABSTRACT:
A system for locating a client in a wireless network. The system includes at least three access points. Each access point is adapted to wirelessly communicate with a client having a location using packeted data, be placed in wired data communication within a selected data network; and to share a common precise time reference using the selected data network. The system further includes a switch adapted to translate the relative position of the access points based on a shared common precise time reference and to calculate the location of the client based on a transmission from the client.
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Amos James A.
Carty Clark
Cisco Technology Inc.
Dao Minh D
Tucker Ellis & West LLP
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