Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-06-29
2008-08-12
Urban, Edward (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S063100, C455S067120, C455S552100
Reexamination Certificate
active
07412256
ABSTRACT:
A carrier sensor senses the input/output level of a radio processing unit. When the input/output level sensed by the carrier sensor is more than a specified level, a transmission-reception controller stops internal radio communication by stopping the operation of transmission/reception units. When the input/output level sensed by the carrier sensor is less than a specified level, the transmission-reception controller allows internal radio communication by operating the transmission/reception units.
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patent: 6519020 (2003-02-01), Cha et al.
patent: 7212845 (2007-05-01), Ikeuchi
patent: 7251323 (2007-07-01), Holtorf et al.
patent: 2005/0020299 (2005-01-01), Malone et al.
patent: 11-308173 (1999-11-01), None
patent: 3086456 (2000-07-01), None
patent: 2002-217800 (2002-08-01), None
patent: 2003-507954 (2003-02-01), None
patent: 2003-143272 (2003-05-01), None
patent: 2004-172826 (2004-06-01), None
patent: WO 01/15329 (2001-03-01), None
Communication from Japanese Patent Office regarding related application.
Dean Raymond S.
Harness & Dickey & Pierce P.L.C.
Seiko Epson Corporation
Urban Edward
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