Scanner-previewer combination including a programmable sampling

Details Scanner-previewer combination including a programmable sampling Scanner-previewer combination including a programmable sampling

1983-09-09

1987-01-06

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 77, 358 78, 358285, 358287, 358289, G03F 310, H04N 104, H04N 106, H04N 146

Patent

active

046351086

ABSTRACT:
Signals corresponding to the color content of an original, generated by scanning the original mounted on a rotating drum, are sampled and held at a coarse or low-resolution scanning rate. The number of samples per line (revolution) and the number of revolutions along which scanning is performed correspond to a raster scan of a video display. The signals are converted into digital signals and stored in a memory. The rate of sampling is adjusted so that samples from an entire frame of the original fill the memory. The stored signals are converted to analog signals, adjusted by a color computer to simulate a printing process and displayed at a raster scan rate on a video display. The apparatus according to the invention may be a scanner-previewer combination to achieve a previewing of the original, or may be a scanner with additional apparatus.

REFERENCES:
patent: 4037249 (1977-07-01), Pugsley
patent: 4285009 (1981-08-01), Klopsch
patent: 4393398 (1983-07-01), Horiguchi et al.

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