Patent ID: 8856819

Claim:
A digital data transmitting/receiving system comprising: a transmitter apparatus configured to transmit digital data, the digital data including video and audio; and a plurality of external apparatuses, each of the plurality of external apparatuses being connected to the transmitter apparatus via a network and being configured to receive the digital data transmitted from the transmitter apparatus, wherein the transmitter apparatus comprises a digital data transmitter configured to transmit the digital data, simultaneously, to the plurality of external apparatuses, and wherein each of the plurality of external apparatuses comprises a digital data receiver configured to receive the digital data transmitted from the digital data transmitter of the transmitter apparatus, and wherein the digital data transmitter of the transmitter apparatus transmits the digital data, simultaneously, to the plurality of external apparatuses, each of the plurality of external apparatuses being addresses of transmission of the digital data, when the plurality of external apparatuses, being the addresses of transmission of the digital data, are authenticated to be regular apparatuses, and when a number of the plurality of external apparatuses, being the addresses of transmission of the digital data, is confirmed within a predetermined limit number.