Image storage using separately scanned wideband and narrowband v

Details Image storage using separately scanned wideband and narrowband v Image storage using separately scanned wideband and narrowband v

1987-03-02

1988-04-05

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

340703, 340798, H04N 964

Patent

active

047362391

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

REFERENCES:
patent: 4163248 (1979-07-01), Heitmann
patent: 4206457 (1980-06-01), Weisbecker et al.
patent: 4210927 (1980-07-01), Yumde et al.
patent: 4302776 (1981-11-01), Taylor et al.
patent: 4303947 (1981-12-01), Stoffel
patent: 4428059 (1984-01-01), Gessert
patent: 4503454 (1985-03-01), Lewis
patent: 4531151 (1985-07-01), Hentschke
patent: 4580163 (1986-04-01), Hartmeier
patent: 4633295 (1986-12-01), van de Polder et al.
patent: 4661987 (1987-04-01), Anderson et al.

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