Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1990-05-30
1992-12-15
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Picture signal generator
H04N 314
Patent
active
051722496
ABSTRACT:
There is provided a photoelectric converting apparatus comprising: an accumulating unit to accumulate charges which were light excited; an amplifying unit to amplify charges of a control electrode; a switching device to connect the accumulating unit and the control electrode; a first reading unit to read out an output of the amplifying unit as a first signal when the switching device is set into a nonconductive state; a transferring unit to make the switching device conductive and to transfer the charges in the accumulating unit to the control electrode; a second reading unit to read out the output of the amplifying unit as a second signal after the charges were transferred; and a subtraction processing circuit to execute a subtracting process between the first and second signals.
REFERENCES:
patent: 4589028 (1986-05-01), Ochi
patent: 4809074 (1989-02-01), Imaide et al.
patent: 4839729 (1989-06-01), Ando et al.
patent: 4843473 (1989-06-01), Bencuya et al.
Brinich Stephen
Canon Kabushiki Kaisha
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