Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2007-06-12
2007-06-12
Payne, David C. (Department: 2611)
Pulse or digital communications
Transmitters
Antinoise or distortion
C375S295000, C375S296000
Reexamination Certificate
active
10372980
ABSTRACT:
In a polar loop based radio-communications apparatus having a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmission, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplification circuit, the phase control loop is first started while maintaining the amplitude control loop in an off state at the outset of transmission, and the amplitude control loop is started after stabilizing the phase control loop.
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Freeborough David
Henshaw Robert Astle
Kurakami Noriyuki
Wurm Patrick
File Erin M.
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Payne David C.
TTPCom Limited
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