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Abstract

A synchronization of a multichannel receiver based on higher-quality channels capable of establishing and maintaining timing synchronism stably even when the transmission channels deteriorate due to fading. A plurality of power detectors measure the quality of the baseband signals of a plurality of channel lines and generate a quality signal. A plurality of equalizers generate timing phase deviation signals for the channel lines. A selecting circuit selects at least one channel line using the quality signal. A frequency controlling circuit generates a frequency control signal in accordance with at least one timing phase deviation signal from the selected channel line and controls a sampling frequency of a sampling circuit which converts a transmitted signal into digital form. Thus, the sampling frequency for all channel lines is determined by using the timing phase deviation signal obtained from a high quality channel line. As a result, the timing phase control can be established with stability.

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First Claim