A content distribution system including (A) a content transmitting device for transmitting content to a content receiving device and (B) the content receiving device for receiving the content transmitted from the content transmitting device, the content transmitting device and the content receiving device sharing an AC power supply with each other,
- wherein:
- the content transmitting device includes:
- transmission-side characteristic point detecting means for (i) detecting a characteristic point in a waveform of the AC power supply, and (ii) generating characteristic point information which is information about the characteristic point detected;
- transmission-side time information generating means for generating, based on the characteristic point information, transmission-side time information which is to be referred in the content process of the content transmitting device's own or in content process of the content receiving device;
- and
- transmitting means for transmitting, to the content receiving device, given content and the transmission-side time information, the content and the transmission-side time information being transmitted in association with each other;
- and
- the content receiving means includes:
- reception-side characteristic point detecting means for (i) detecting the characteristic point in the waveform of the AC power supply, and (ii) generating characteristic point information which is information about the characteristic point detected;
- reception-side time information generating means for generating, based on the characteristic point information, reception-side time information which is to be referred in the content process of the content receiving device's own;
- receiving means for receiving, from the content transmitting device, the content and the transmission-side time information, the content and the time information of the content transmitting device being in association with each other;
- and
- content processing means for processing the received content, based on a correlation between (i) the transmission-side time information which is in association with the received content and (ii) the reception-side time information generated by the reception-side time information generating means.