Method and system to scan motion picture film to develop televis

Details Method and system to scan motion picture film to develop televis Method and system to scan motion picture film to develop televis

1978-07-28

1981-09-08

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 336

Patent

active

042888182

ABSTRACT:
To derive TV signals in standard TV interlace scanning format upon continuous scanning of motion picture film, line by line, the scanned signals are stored in a memory and the lines of the film frame, as they are being scanned, are assigned individual line addresses which permits read-out, in accordance with standard TV signal standards, from the individual addresses. In a preferred form, alternate lines, as they are being scanned, have their addresses incremented by a number corresponding to half the scanning lines (262 for the NTSC system), so that alternate sequentially scanned lines will be stored in the memory as addresses corresponding to interlaced reproduction. The address generation is synchronized with movement of the film and the generation of address signals can be either direct or modified to permit reproduction in slow-motion or accelerated motion; the scanning can be direct or modified to compensate for distortion of film exposed through anamorphic lenses to reconstitute signals stored for undistorted presentation although these signals may cover only portions of possible addresses. The memory is read with a half-scanning frame delay so that a complete film frame is stored before the first half-frame is read out.

REFERENCES:
patent: Re29807 (1978-10-01), Metzger
patent: 2774815 (1956-12-01), Gillette
patent: 2922841 (1960-01-01), Graziano
patent: 2947810 (1960-08-01), Horsley
patent: 3806645 (1974-04-01), Favreau
patent: 3882539 (1975-05-01), Faroudja
patent: 3952328 (1976-04-01), Biber
patent: 4057836 (1977-11-01), Munsey
patent: 4059842 (1977-11-01), Meacham
patent: 4149191 (1979-04-01), Longchamp
patent: 4205337 (1980-05-01), Millward

Affiliated with

Also associated with

Rating

Method and system to scan motion picture film to develop televis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system to scan motion picture film to develop televis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system to scan motion picture film to develop televis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1195489