Patent ID: 8321715

Claim:
A communication apparatus having a clock interface unit supplying a clock signal for synchronization, the communication apparatus comprising: a clock extracting section configured to extract a clock component from a received signal; a decoding section configured to decode the clock component extracted by the clock extracting section in all of one or more predetermined encoding forms so as to generate decoded signals; a frame converting section configured to convert the decoded signals generated by the decoding section in all of one or more predetermined frame forms so as to create reception frames; a determining section configured to determine a decodable encoding form in all of the one or more predetermined encoding forms and a convertible frame form from all of the one or more predetermined frame forms based on synchronization with the reception frames created by the frame converting section; a setting section configured to set, into the clock signal, the decodable encoding form and the convertible frame form determined to be right by the determining section; and a clock signal output section configured to output the clock signal set by the setting section.