Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1988-11-18
1991-02-05
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Recording apparatus
35821326, H04N 314
Patent
active
049910167
ABSTRACT:
The control method is associated with a frame information transfer in accordance with the so-called accordion principle in which information shifts are locally effected with an opening, a transporting and a closing phase. The opening phase involves an enlargement of sensor element areas in a column direction in which a shift is effected during the transporting phase. The closing phase involves a reduction in the column direction of the enlarged areas (IE, BE, SE) at the appointed locations. In the presence of a sensor black level section (BLS) shielded from radiation and arranged between an image section (IS) and a storage section (SS) of the frame transfer sensor (FTS), clock pulse signals are applied to the black level section (BLS) after a frame information transfer period and during a black level generation period, which clock pulses lead to a transporting phase and a closing phase in accordance with the accordion principle, a black level reference is obtained which leads to a correct black level information in a picture signal to be supplied by a sensor output (OT).
REFERENCES:
patent: 4574313 (1986-03-01), Battson
patent: 4575763 (1986-03-01), Elabd
patent: 4580169 (1986-04-01), Savoye
patent: 4723168 (1988-02-01), Theuwissen
patent: 4811105 (1989-03-01), Kinoshita et al.
Brinich Stephen
Lobato Emmanuel J.
Rich Marianne R.
U.S. Philips Corp.
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