Patent ID: 6501388
Filing Date: 2002-12-31
Classification: H04L,H04W

Abstract:
A radio signal selective-calling receiver comprising:(a) a detector which detects a difference in frequency between a first base clock signal of said radio signal selective-calling receiver and a second base clock signal of a base station, based on third signals transmitted from said base station which is in communication with said radio signal selective-calling receiver through a communication line; (b) a compensator which compensates for said first base clock signal with respect to a frequency in accordance with the detected difference, and transmits a base clock signal having been compensated for, said compensator comprising an integrator converting a phase difference signal between a frequency of the first base clock signal of the radio signal selective-calling receiver and the second base clock signal of the base station, into a dc voltage; and (c) a signal transmitter which transmits a synchronization clock signal on the basis of said base clock signal having been compensated for by said compensator.