MEASUREMENT OF SYSTEM TIME DELAY

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 co...

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Bibliographische Detailangaben
Hauptverfasser:	TOMKO STEPHEN JOSEPH, BOESCH WILLIAM WALTON, BRUCKMEYER JOSHUA PAUL
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION TRANSMISSION
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Beschreibung
Zusammenfassung:	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.