Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1976-06-29
1979-11-27
Corbin, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
1791003G, 358130, G02B 2700
Patent
active
041758234
ABSTRACT:
A process of recording information which is in the form of electrical signals by pulse amplitude modulating an object wave and directing it with a reference wave onto a moving light-sensitive storage medium to record hybrid holograms thereon characterized in that the object beam is split into a plurality of parallel object beams each of which is individually and separately pulse modulated with a separate signal to be recorded, focusing the parallel modulated beams into an astigmatic object wave and focusing the reference wave into an astigmatic reference wave, with each wave having a focal line extending parallel to the direction of feed being coplanar and each wave having a focal line which is extending perpendicular to the direction of feed being mirror symmetrical to the storage medium. Preferably, the rate of advance or feed of the storage medium is controlled so that the individual holograms are overlapping.
REFERENCES:
patent: 3758187 (1973-09-01), Thomas et al.
patent: 3809453 (1974-05-01), Ruell et al.
patent: 3812496 (1974-05-01), Brooks
patent: 3936140 (1976-02-01), Ruell
Kiemle Horst
Pekau Dietlind
Ruell Hartwig
Storck Eckhard
Corbin John K.
Lee John D.
Siemens Aktiengesellschaft
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