Measurement of system time delay

Details Measurement of system time delay Measurement of system time delay

H - Electricity

04

N

H04N 21/242 (2011.01) H03C 1/52 (2006.01) H04N 7/64 (2006.01) H04N 7/015 (2006.01) H04N 7/52 (2011.01)

Patent

CA 2735695

Apparatus and method are presented for measuring the transmitter and antenna system time delay (TAD) of the cadence sync at the input of a conventional 8 VSB data processing system until the emission of the segment sync of the corresponding data frame sync data segment. This includes sequentially conditioning a multi- bit input digital signal containing an initial cadence sync, inserting data patterns into the digital signal, inserting a known data pattern into the data frame at a known position of the data frame and receiving the cadence sync and the known pattern and measuring the time delay therebetween.

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