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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Hauptverfasser:	TOMKO, STEPHEN JOSEPH, BRUCKMEYER, JOSHUA PAUL, BOESCH, WILLIAM WALTON
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MODULATION 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.