Interleave detector of composite video signal

Details Interleave detector of composite video signal Interleave detector of composite video signal

1990-08-24

1992-07-21

Razavi, Michael

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 31, H04N 945, H04N 9445

Patent

active

051327821

ABSTRACT:
An interleave detector between a horizontal synchronous signal and a chrominance subcarrier signal comprises a 1H delay part, an adder, a squarer, a low pass filter and a comparator for achieving a high quality of image. The interleave detector detects the interleave between the horizontal synchronous signal and the chrominance subcarrier signal of a composite video signal in such a manner that a burst signal of the composite video signal is 1H delayed and added to the original signal thereof for squaring the added output so as to extract the phase error by filtering the squared output through the low pass filter.

REFERENCES:
patent: 4636842 (1987-01-01), Hartmeier
patent: 4809060 (1989-02-01), Saeki

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