Image storage using separately scanned luminance and chrominance

Details Image storage using separately scanned luminance and chrominance Image storage using separately scanned luminance and chrominance

1986-10-14

1988-04-26

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

340703, 340798, 358 13, H04N 900

Patent

active

047408324

ABSTRACT:
Computer main memory is used for storing relatively densely sampled luminance information concerning a television display and for storing relatively sparsely sampled chrominance information concerning the same television display. The relatively densely sampled luminance information is read out in substantially real-time from computer main memory during line trace intervals in the television display. The relatively sparsely sampled chrominance information is read out of computer main memory in advanced and compressed time during selected line retrace intervals in the television display.

REFERENCES:
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patent: 4210927 (1980-07-01), Yumde et al.
patent: 4415918 (1983-11-01), Lewis, Jr.
patent: 4520386 (1985-05-01), Asaida
patent: 4553175 (1985-11-01), Baumeister
patent: 4564915 (1986-01-01), Evans et al.
patent: 4625230 (1986-11-01), Tan et al.
patent: 4633295 (1986-12-01), van de Polder et al.
patent: 4646151 (1987-02-01), Welles, II et al.

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