Patent ID: 8510783

Claim:
A video on demand (VOD) transmission method using a divided transport stream (TS), the VOD transmission method comprising: setting a division coefficient for dividing a TS; dividing the TS into a unicast segment and multicast segments according to the division coefficient, wherein a size of the unicast segment is always greater than a size of any one of the multicast segments; wherein the size of the multicast segment is determined by calculating a number of packets of the multicast segments by applying a truncation of decimal points on a value obtained by dividing a total number of the TS packets by the division coefficient; and calculating the multicast segment size by multiplying the number of packets of the multicast segments by a TS packet size; and transmitting the unicast segment in a unicast manner and transmitting the multicast segments in a multicast manner after transmitting the unicast segments in a unicast manner.