Optics: motion pictures – With sound accompaniment – Separate picture and sound carrier systems
Patent
1976-03-08
1982-03-16
Hayes, Monroe H.
Optics: motion pictures
With sound accompaniment
Separate picture and sound carrier systems
352 17, 352 20, 352 92, 352 69, G03B 3104
Patent
active
043198120
ABSTRACT:
Audio-visual systems including a motion picture film projector and a tape player, the film having optical cues and program reference notches for stopping film advancement, and the tape having start cues for starting film advancement. The optical stop cues are detected dynamically and with cue length discrimination. A program select control causes the system to search for a program reference notch and to ignore optical stop cue until the notch is detected. Other features include a pause-run control, a variable frame rate control with a single-frame advance option, and remote controls. Optical stop cue detection systems include a light transmissive system, a light reflective system, a polarized light system, and a colored light system.
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IBM Technical Disclosure Bulletin, vol. II, No. 10, 3-69.
Hayes Monroe H.
Technicolor Corporation
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