Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1978-04-25
1980-04-22
Hecker, Stuart N.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
346 76L, 358127, 358201, 365234, G02F 100, G02F 111
Patent
active
041997832
ABSTRACT:
An optical system for recording n information signals on a photosensitive tape in the form of a discontinuous track made up of parallel track sections by means of n light beams having a two states modulated intensity, being simultaneously deflected by an acousto-optical deflector and focusing on the tape in the form of n equidistant spots aligned in a direction x. The combination of the deflection and a translation movement of the tape produces a scanning movement of said n spots in a direction perpendicular to x. The same system is made for the reading of the information transcribed on the tape, the beams being then not modulated, by means of photodetector means which receive the light emerging from the tape and provide information signals in relation with the physical modifications obtained on the tape during the recording.
REFERENCES:
patent: 3534166 (1970-10-01), Korpel
patent: 3657473 (1972-04-01), Corcoran
patent: 3841733 (1974-10-01), Ebersole
Motoki et al., Direct Laser-Beam Recording of Color Television Signals on Color Print Film, SMPTE Journal, vol. 86, 2/77, pp. 71-73.
Huignard Jean P.
Lehureau Jean-Claude
"Thomson-CSF"
Hecker Stuart N.
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