Telereproduction system for documents

Details Telereproduction system for documents Telereproduction system for documents

1974-04-24

1976-01-06

Hecker, Stuart N.

Telegraphy

Systems

Simplex-reversing periodic

178 66R, 178 67R, 346 74R, H04N 112

Patent

active

039314618

ABSTRACT:
Apparatus for the telereproduction of documents transmitted in the form of electrical signals emanating from the line-by-line scanning of the original and modulating a carrier or sub-carrier wave, the demodulated video signals being applied to the scanning element of the reproduction apparatus synchronized with the scanning element of the emitter, the apparatus comprising a memory in which is stored the video voltage emanating from demodulation of the signals received, and means for removing these signals from the memory at a speed exactly proportional to that of the line scanner of the recorder, i.e. each time this element has advanced by a step of constant value corresponding to the distance separating two successively recorded dots.

REFERENCES:
patent: 2046328 (1936-07-01), Kleinschmidt et al.
patent: 2306687 (1942-12-01), Cox
patent: 2926057 (1960-02-01), Horsch
patent: 3346692 (1967-10-01), Garfield et al.
patent: 3394225 (1968-07-01), Hedger et al.
patent: 3541245 (1970-11-01), Wilby
patent: 3564120 (1971-02-01), Taylor
patent: 3636251 (1972-01-01), Daly et al.
patent: 3809806 (1974-05-01), Walker et al.

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