Color-television receiver having integrated circuit for the lumi

Details Color-television receiver having integrated circuit for the lumi Color-television receiver having integrated circuit for the lumi

1981-02-23

1982-09-28

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 21R, H04N 950

Patent

active

043521231

ABSTRACT:
The invention permits an n bit resolution to be achieved with an n-1 bit converter. In a color television receiver the analog-to-digital converter is a parallel analog-to-digital converter with p=2.sup.r -1 differential amplifiers as comparators, where r is the number of binary digits of the output signal of the analog-to-digital converter minus one. The composite color signal is then applied as the input signal to the noninverting (or inverting) inputs of all p differential amplifiers and the inverting (noninverting) inputs of the differential amplifiers being connected successively to the taps of a resistive voltage divider which contains equal-value resistors and is fed with a reference voltage (Ur).
For the duration of every second line, either the reference voltage or the input signal is shifted by .DELTA.U=0.5 Ur/2.sup.r.

REFERENCES:
patent: 3961365 (1976-06-01), Payne et al.
patent: 4194215 (1980-03-01), Shionoya
patent: 4270139 (1981-05-01), Flamm et al.

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