Reception device, control method, and program

Details Reception device, control method, and program Reception device, control method, and program

2007-11-28

2011-12-20

Kinkead, Arnold (Department: 2817)

Demodulators

Phase shift keying or quadrature amplitude demodulator

Input signal combined with local oscillator or carrier...

C329S304000, C329S325000, C329S360000, C375S316000, C375S327000

Reexamination Certificate

active

08081027

ABSTRACT:
A reception device that receives a modulation signal being a result of digital modulation of a carrier is disclosed. The device includes:a demodulation section that demodulates the modulation signal into a demodulation signal including an I component and a Q component;a numerically controlled oscillation section that generates a signal of predetermined phase;a phase error detection section that detects a phase error between a phase of a symbol of the demodulation signal and the predetermined phase of the signal generated by the numerically controlled oscillation section;a phase rotation section that rotates the phase of the symbol of the demodulation signal in accordance with the phase error;a loop filter that filters the phase error, and controls the numerically controlled oscillation section; anda gain control section that controls a gain of the loop filter based on a modulation technique of the modulation signal.

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