DATA DISTRIBUTION DEVICE CAPABLE OF DISTRIBUTING A CONTENT

摘要

When a distribution device (200) receives a distribution request packet from a new reception device (300) while distributing contents by a multi-cast address, the distribution device (200) returns a distribution approval packet including the multi-cast address being distributed (gotcha). Next, the reception device (300) receives a content packet by the multi-cast from the distribution device (200) and transmits a first packet serial number (52) received and distributed data request including the buffer size required for reproduction start to the distribution device (200) (notification). Next, the distribution device (200) reads necessary packet from the distributed data buffer and transmits the distributed data (U43 to U51) going back from the serial number 51 to the reception device (300) while performing the multi-cast distribution.