Color scanner with built-in color compression hardware to reduce

Details Color scanner with built-in color compression hardware to reduce Color scanner with built-in color compression hardware to reduce

1990-02-28

1992-10-06

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

358 75, H04N 132

Patent

active

051537478

ABSTRACT:
The color image scanner includes built-in color compression capabilities to reduce scan time. The improved color scanner scans a color image on a document to provide color image data having a bandwidth of approximately 4-5 megabytes per second. The color image scanner stores the digital color image data on a line by line basis and shifts the stored data into a transmit line circuit. The scanner further includes compression means for compressing the image data at a ratio of approximately 10:1 which is suitable for input to a personal computer for further processing.

REFERENCES:
patent: 4581656 (1986-04-01), Wada
patent: 4768082 (1988-08-01), Hiratsuka et al.
patent: 4783841 (1988-11-01), Crayson
patent: 4814898 (1989-03-01), Arimoto et al.
patent: 4853778 (1989-08-01), Tanaka

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