System and method for maintaining timing synchronization in a digital video network

摘要

A system for maintaining timing synchronization in a digital video transport system, comprises: a filter configured to receive a program group containing a plurality of program and isolate at least one of the programs; a buffer in communication with the filter, the buffer is configured to store the program; a program clock reference (PCR) extractor in communication with the filter, the PCR extractor is configured to extract the PCR value from the program; a counter in communication with the PCR extractor, the counter is configured to receive the PCR value and increment the PCR value during a clock cycle and a multiplexer in communication with the counter, the multiplexer is configured to receive an output of the buffer and the counter, the counter is configured to overwrite the PCR value into the program.