Image signal processing device

Details Image signal processing device Image signal processing device

1992-06-25

1996-01-23

Groody, James J.

Television

Image signal processing circuitry specific to television

Color encoder or chrominance signal modulator

H04N 965

Patent

active

054868750

ABSTRACT:
An image signal processing device according to the present invention is a device for processing an image signal. The device is provided with a first differential amplifier for receiving a color-difference signal and a reference signal, a second differential amplifier for receiving a burst flag signal and the reference signal, and a modulator for receiving together signals outputted from the first and second differential amplifiers and modulating the received signals by using a carrier signal. Accordingly, it is possible to add the burst flag signal to the color-difference signal and modulate the obtained sum signal by means of a simple arrangement and without the need for complicated adjustment.

REFERENCES:
patent: 4338580 (1982-07-01), Gay
patent: 4551749 (1985-11-01), Narita
patent: 4654607 (1987-03-01), Ishikawa
patent: 4724405 (1988-02-01), Matthies et al.

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