Optical read-write system with electronically variable image siz

Details Optical read-write system with electronically variable image siz Optical read-write system with electronically variable image siz

1978-07-03

1980-11-11

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 102

Patent

active

042336368

ABSTRACT:
Disclosed is an optical read-write system including a first laser scanner for linearly scanning an object and generating a digital signal for the line scan. The digital signal is stored in a buffer at a read clock rate which is correlated to the scan of the first laser scanner. The digital signal is read-out of the buffer at a write clock rate and is applied as a control signal for a second laser scanner which linearly scans an image plane to develop an image. The second scanner scans at the same scan rate and distance as the first scanner, and the size of the image compared to the object size is determined by the differential of the read clock rate and the write clock rate.

REFERENCES:
patent: 3272918 (1966-09-01), Koll et al.
patent: 3541245 (1970-11-01), Wilby
patent: 4080634 (1978-03-01), Schrieber

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