Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-07-01
2008-07-01
Nguyen, Duc M. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S444000, C455S552100
Reexamination Certificate
active
11474840
ABSTRACT:
The present invention is directed to a Time-Shared Full Duplex (TSFD) asynchronous wireless communications protocol for use in a TSFD wireless communication system. The wireless protocol utilizes broadband PCS radio frequency (RF) spectrum with PCS low band reserved for receive frequencies and PCS high band for transmit frequencies. The radio frequencies can be received or transmitted by a TSFD wireless device or a signal extender or a network extender.
REFERENCES:
patent: 5857154 (1999-01-01), Laborde et al.
patent: 6987984 (2006-01-01), Kemmochi et al.
Cai Wayne
Everest Intellectual Property Law Group
Leonard Michael S.
Nguyen Duc M.
Wahoo Communications Corporation
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