Color burst phase detection system for use in a video disk playe

Details Color burst phase detection system for use in a video disk playe Color burst phase detection system for use in a video disk playe

1986-06-16

1988-03-29

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358326, A04N 9455

Patent

active

047347570

ABSTRACT:
A system for detecting an inversion of burst phase of a video signal, includes a reference color subcarrier signal generator for generating a reference color subcarrier signal whose frequency is equal to the frequency of the color burst signal of the video signal, and a phase comparator for comparing in phase the color burst signal of the video signal and the reference color subcarrier signal. When the level change in an output signal of the phase comparator exceeds a predetermined reference level, the system produces an indication signal indicating that the burst phase of the video signal is inverted.

REFERENCES:
patent: 3562413 (1971-02-01), Coleman
patent: 4024571 (1977-05-01), Dischert
patent: 4052233 (1977-10-01), Derenbecher, Jr.
patent: 4620219 (1986-10-01), Burrowes
"Automatic Burst Phase Matching Arrangement for Color T.V. Camera Systems", Technical Notes, RCA #1309, McCoy; Mar. '83, pp. 1-15.

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