Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1994-08-30
1996-09-24
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
382272, H04N 140
Patent
active
055596100
ABSTRACT:
An image processing apparatus is configured such that an image is photoelectrically read, a reference signal, which follows an output signal from a reading circuit, is formed, whether the level of the output signal is greater or smaller than the level of the reference signal is detected, and a capacitor, for performing a charging operation or a discharging operation in accordance with a result of the detection, is charged during a predetermined time period before the start of the output of the output signal from the reading circuit.
REFERENCES:
patent: 4064484 (1977-12-01), Mese
patent: 4947445 (1990-08-01), Sakamoto
Ali Shahreen
Canon Kabushiki Kaisha
Coles Sr. Edward L.
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