Pulse-code modulated video reproducer utilizing linear arrayed l

Details Pulse-code modulated video reproducer utilizing linear arrayed l Pulse-code modulated video reproducer utilizing linear arrayed l

1975-08-01

1977-07-12

Habecker, Thomas B.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 584

Patent

active

040355799

ABSTRACT:
A video playback system utilizing a vertically moving strip of photosensitive film on which linear bit fields containing a pulse-code modulated (PCM) representation of a television picture have been recorded. The system includes an illuminating means which successively scans a horizontal line of bit fields. Magnifying optics include a linear multiple lens array and a correction lens assembly. As each bit field in the line is successively illuminated, the magnifying optics project an image of the bit field to a linear detector array. Digital information from each bit field is transferred to a buffer; the digital information is converted to analog video signals and applied to the input of a video utilization device. Vertical registration is accomplished by detecting servo information recorded on the film and optically slaving the film drive system to the scanning operation.

REFERENCES:
patent: 3299434 (1967-01-01), McNaney
patent: 3688045 (1972-08-01), Ohkoshi
patent: 3767850 (1973-10-01), McMillan
patent: 3803353 (1974-04-01), Sanderson

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