Patent ID: 8599713

Claim:
A communication apparatus capable of performing HEAC (HDMI Ethernet and Audio Return Channel) communication with another communication apparatus compliant with HEAC communication, comprising: a receiving unit configured to receive an HEC (HDMI Ethernet Channel) signal from the other communication apparatus via a transmission path; a detecting unit configured to detect a signal level of the HEC signal received by said receiving unit; a deciding unit configured to decide an amplification factor of an HEC signal to be transmitted, which is a signal to be transmitted to the other communication apparatus, based upon the detected signal level in a case where the detected signal level is not within prescribed limits; an ARC outputting unit configured to output an ARC (Audio Return Channel) signal to be transmitted, which is a signal to be transmitted to the other communication apparatus; an HEC outputting unit configured to output the HEC signal to be transmitted; an amplifying unit configured to amplify the HEC signal to be transmitted, which has been output by the HEC outputting unit, at the decided amplification factor; a generating unit configured to generate an HEAC signal by multiplexing the ARC signal to be transmitted, which has been output by the ARC outputting unit, and the HEC signal to be transmitted, which has been amplified by said amplifying unit; and a transmitting unit configured to transmit the HEAC signal to the other communication apparatus via the transmission path.