Broadcast transport stream distribution system, and...

Details Broadcast transport stream distribution system, and... Broadcast transport stream distribution system, and...

H - Electricity

04

N

H04N 21/6437 (2011.01) H04H 20/00 (2008.01) H04L 12/18 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2610579

In a transport stream distribution system, a transmission rate control unit periodically corrects internal clocks on the basis of times generated from a time generation unit to generate the same time stamps as those of a system of a time stamp of four-bytes (TTS) to be added to transport stream (TS) packets by using the corrected clocks. In this state, the system takes in an IP packet output from an IP transmission processing unit, obtains a TTS to be added to an arbitrary TS packet in the IP packet, and compares the TTS with a time stamp generated internally to determine whether both of them coincide with each other or not. And if they coincide with each other, the system takes in a TTS of the next TS packet, and otherwise, the system obtains a difference between a time indicating the TTS and the time indicating the internally generated time stamp to calculate a transmission rate correction value equivalent to the value of the difference, and issues the calculated correction value to the processing unit to correct a transmission rate.

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