Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1992-03-04
1996-02-27
Wong, Peter S.
Facsimile and static presentation processing
Facsimile
Recording apparatus
347224, H04N 140, G01D 942
Patent
active
054953413
ABSTRACT:
An image processing apparatus having an input device for receiving a multivalue image signal, a generating unit for generating a plurality of count clocks, a counting unit for counting the count clocks supplied from the generating unit, a pulse width modulation unit for performing a pulse width modulation by using an output from the counting unit and the multivalue image signal and a selection unit for selecting one count clock from a plurality of the count clocks in accordance with a value of the multivalue image signal.
REFERENCES:
patent: 4905022 (1990-02-01), Nagasawa
patent: 4926268 (1990-05-01), Kawamura et al.
patent: 5130791 (1992-07-01), Abe
patent: 5172132 (1992-12-01), Haneda et al.
Kashihara Atsushi
Kawana Takashi
Mano Hiroshi
Saito Tetsuo
Seto Kaoru
Canon Kabushiki Kaisha
Frahm Eric
Wong Peter S.
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