Apparatus for detecting a chrominance reference burst component

Details Apparatus for detecting a chrominance reference burst component Apparatus for detecting a chrominance reference burst component

1984-08-06

1986-10-28

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

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H04N 9455

Patent

active

046202196

ABSTRACT:
Apparatus for generating a burst gate pulse from composite video includes a threshold detector for generating output pulses on consecutive positive and negative going burst signal cycles. Output signal from the threshold detector is applied to a digital correlator which generates a control signal when a predetermined signal sequence is produced by the detector. The control signal energizes a counter to count clock pulses synchronized with the burst signal to generate a burst gate pulse have a width equal to a predetermined number of burst signal cycle periods.

REFERENCES:
patent: 4024571 (1977-05-01), Dischert et al.
patent: 4316214 (1982-02-01), Yost
patent: 4339770 (1982-07-01), Dennison et al.
Isao Nakagawa et al., "New Chrominance Signal Processing LSI for Home VCR", IEEE Trans. Con. Elec., vol. CE-26, 8/80, pp. 315-322.

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