Method of and means for checking the correlation of two data car

Details Method of and means for checking the correlation of two data car Method of and means for checking the correlation of two data car

1973-11-08

1976-03-16

Braun, Fred L.

Optics: motion pictures

With sound accompaniment

Methods

352 12, 352 92, 352169, 360 80, G03B 3100

Patent

active

039443485

ABSTRACT:
If a cine film is to be projected to the accompaniment of a sound track on a separate tape it is necessary to cheek that the film and the sound track are correctly coordinated. This is ensured by reading a code mark from the sound track and using it to slow or stop the motion of the film. The point at which the film motion is slowed or stopped is used to evaluate the relative position of the film with respect to the sound track and thus check that correct coordination is present. This evaluation may take place visually or automatically. In the latter case the prolonged presence of a correlation marking on the film in a sensing position can be used to signal the existence of correlation whereas the absence of such marking may energize a warning lamp or deactivate the film drive.

REFERENCES:
patent: 2693127 (1954-11-01), Ortman
patent: 3498702 (1970-03-01), Meninger et al.
patent: 3563641 (1971-02-01), Ryder
patent: 3690746 (1972-09-01), Kotler et al.
patent: 3743392 (1973-07-01), Numata et al.

Affiliated with

Also associated with

Rating

Method of and means for checking the correlation of two data car 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 of and means for checking the correlation of two data car, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and means for checking the correlation of two data car will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-290158