Video signal adjusting apparatus, display using the apparatus, a

Details Video signal adjusting apparatus, display using the apparatus, a Video signal adjusting apparatus, display using the apparatus, a

1994-03-29

1996-06-11

Metjahic, Safet

Television

Image signal processing circuitry specific to television

Chrominance signal amplitude control

348675, 348679, 348692, 327350, 327563, H04N 969

Patent

active

055260586

ABSTRACT:
A color corrector receiving a video signal as an input signal and producing an output signal representing a function of power of the input signal includes a logarithmic converter for achieving a logarithmic conversion of the input signal and outputting a resultant signal, a variable gain amplifier for altering amplitude of the signal from the logarithmic converter and outputting an obtained signal, and an antilogarithmic converter connected to the amplifier for outputting a signal representing an exponential function of the signal from the amplifier.

REFERENCES:
patent: 4225794 (1980-09-01), Buff
patent: 4346352 (1982-08-01), Baetke
patent: 5062942 (1991-11-01), Kambara et al.
patent: 5087966 (1992-02-01), Harradine
patent: 5162654 (1992-11-01), Kostichka et al.
patent: 5223799 (1993-06-01), Yamate
patent: 5255093 (1993-10-01), Topper et al.

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