Broadcast studio synchronization distribution system and method

Details Broadcast studio synchronization distribution system and method Broadcast studio synchronization distribution system and method

1998-07-30

2000-05-30

Hsia, Sherrie

Television

Synchronization

Locking of video or audio to reference timebase

348521, 348722, 348536, H04N 9475

Patent

active

060696664

ABSTRACT:
A system and method for distribution of a clock signal of a new timing reference which may employ an existing NTSC distribution network present in a conventional NTSC studio. NTSC-compliant horizontal, vertical, or other composite synchronization signals are generated from an HDTV primary reference clock, and are synchronized and locked to the HDTV primary reference, for distribution over the existing NTSC distribution network. HDTV studio components receive the horizontal, vertical, or other composite synchronization signals and generate a local HDTV clock signal using a phase-locked loop frequency synthesizer. The signal generated by the phase-locked loop frequency synthesizer is synchronized and locked to the HDTV primary reference.

REFERENCES:
patent: 5880792 (1999-03-01), Ward

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