Motion picture sound system

Details Motion picture sound system Motion picture sound system

1977-05-23

1978-11-07

Cook, Daryl W.

Optics: motion pictures

Removable film strip magazine type

352 27, G11B 700, G03B 3102

Patent

active

041247841

ABSTRACT:
A system for detecting and reproducing variable-area-type optically recorded audio signals by cyclically detecting substantially only the position of a boundary of the sound track. In one embodiment, the boundary is detected by imaging the boundary onto an array of photosensors and scanning the array to provide an output signal containing a transition corresponding in the time domain to the position of the boundary. The transition signal is filtered and sliced to provide electrical interpolation to improve the resolution substantially over the special resolution of the photosensitive elements of the array. The system may also include a multitrack capability with means for minimizing the effect of film weave.

REFERENCES:
patent: 2487511 (1949-11-01), Bedford
patent: 3964826 (1976-06-01), Joseph et al.
patent: 4044207 (1977-08-01), Vlahos

Affiliated with

Also associated with

Rating

Motion picture sound system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motion picture sound system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion picture sound system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2234676