Patent ID: 7769352
Filing Date: 2010-08-03
Classification: H03C,H03D,H04B,H04L,H04W,Y02D

Abstract:
1. A receiver, comprising: a first voltage control oscillator configured to select a certain frequency component included in a phase-modulated received signal to generate a first oscillation signal; a second voltage control oscillator configured to generate a second oscillation signal having a first phase; a first phase comparator configured to detect a phase difference between the first and second oscillation signals; a demodulator configured to perform demodulation processing of the received signal based on the phase difference detected by the first phase comparator and to generate timing information of a second phase included in the first oscillation signal; a second phase comparator configured to extract the second phase component included in the first oscillation signal based on the timing information generate by the demodulator to detect the phase difference between the first and second oscillation signals; and a first control voltage generator configured to generate a first control voltage for controlling a phase and a frequency of the second voltage control oscillator based on the phase difference detected by the second phase comparator.