Media communication system and media communication apparatus and method thereof having signal synchronization mechanism

A media communication method having signal synchronization mechanism used in a media communication apparatus, comprising:

• generating a reference clock signal and a media clock signal by a local clock generation circuit;
• performing a time calibration process with an external apparatus by a time calibration circuit to generate time calibration information so as to further calibrate the reference clock signal and the media clock signal according to the time calibration information to respectively generate a calibrated reference clock signal and a calibrated media clock signal on a standard time domain;
• generating a sampling signal according to the calibrated media clock signal by a media clock processing circuit;
• and
• performing time counting according to the calibrated reference clock signal to generate time related information by a signal processing circuit, so as to process an input media signal according to the time related information and the sampling signal to generate an output media signal.

A media communication system comprising:

• a media providing terminal and a plurality of media receiving terminals each comprising:
• a local clock generation circuit configured to generate a reference clock signal and a media clock signal;
• a time calibration circuit configured to perform a time calibration process with an external apparatus to generate time calibration information so as to further calibrate the reference clock signal and the media clock signal according to the time calibration information to respectively generate a calibrated reference clock signal and a calibrated media clock signal on a standard time domain;
• a media clock processing circuit configured to generate a sampling signal according to the calibrated media clock signal;
• and
• a signal processing circuit configured to perform time counting according to the calibrated reference clock signal to generate time related information, so as to process an input media signal according to the time related information and the sampling signal to generate an output media signal;
• wherein the output media signal generated by the media providing terminal generate serves as the input media signal of the media receiving terminals.