Encoder for television signals

Details Encoder for television signals Encoder for television signals

1988-10-28

1991-09-10

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 1112, H04N 978

Patent

active

050478419

ABSTRACT:
An encoder for encoding color video signals into a composite color video signal comprises a matrix 1 for providing luminance and color difference signals. Modulators 4, 5 modulate a chrominance signal. The luminance signal is supplied to a filter 7 controlled by a control circuit 8 so that, when luminance signal components at or near the sub-carrier frequency are detected by the circuit 8, they are attenuated by the filter 7.

REFERENCES:
patent: 4389665 (1983-06-01), Nagao et al.
patent: 4417270 (1983-11-01), Nagao et al.
patent: 4638351 (1987-01-01), Clarke
patent: 4656502 (1987-04-01), Hansdorfer
patent: 4731660 (1988-03-01), Farondja et al.

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