Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1992-11-27
1995-01-24
Hjerpe, Richard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358443, 358426, 358444, 358467, 358455, 358298, H04N 140
Patent
active
053846460
ABSTRACT:
An apparatus and method for processing image data operates in a high capacity or a high quality mode. In the former a single bit per pixel is created and processed along one of two identical processing paths. The processing paths involve compression, buffering and expansion for output to a writer interface. The processing path selected for pixels in each image frame is in accordance with the most available buffering memory. In the latter mode two bits per pixel, a more significant bit (MSB) and a less significant bit (LSB) are created and processed simultaneously along the two processing paths. The processing path for each is selected in accordance with the LSB being processed by the processing path with the most available memory. As compression of the LSBs is not as efficient as that of the MSBs, the number of document pages stored in the compression buffers is maximized.
REFERENCES:
patent: 4110795 (1978-08-01), Spencer
patent: 4525729 (1985-06-01), Agulnek et al.
patent: 4573133 (1986-02-01), White
patent: 4679094 (1987-07-01), Rutherford et al.
patent: 4730223 (1988-03-01), Ikeda et al.
patent: 4746941 (1988-05-01), Pham et al.
patent: 4810974 (1989-03-01), Hulbert et al.
patent: 5032838 (1991-07-01), Murayama et al.
patent: 5056154 (1991-10-01), Aono et al.
patent: 5126759 (1992-06-01), Small et al.
patent: 5138316 (1992-08-01), Konish
patent: 5175632 (1992-12-01), Hayashi et al.
patent: 5229863 (1993-07-01), Kao et al.
patent: 5253077 (1993-10-01), Hasegawa et al.
Patent Abestract of Jap., vol. 3, No. 304, Oct. 1987 and JP, A, 62 095 072 (Canon).
Patent Abstracts of Jap., vol. 14, No. 415, Jun. 1990, and JP, A, 02 159 616 (Fujitsu).
Godshalk Russell L.
Maslinski Raymond E.
Muster Frank L.
Telle Lawrence B.
Wetzel Thomas J.
Eastman Kodak Company
Hjerpe Richard
Lee Fan
Rushefsky Norman
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