Correction of optical film soundtrack deficiencies

Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems

Reexamination Certificate

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C352S005000, C352S011000, C352S026000

Reexamination Certificate

active

07053978

ABSTRACT:
An apparatus and method for analog optical sound track playback includes a transport device for transporting a film including an analog optical sound track and audio representative envelope. A scanner forms a display image signal representative of the analog optical sound track with the audio representative envelope. An alignment device aligns the scanner such that only half of the analog optical sound track with the audio representative envelope form the display image signal and substantially fill a width of the scanner. A processor processes the image signal representing only half of the analog optical sound track and the audio representative envelope and forms therefrom an audio output signal.

REFERENCES:
patent: 4577302 (1986-03-01), Allen
patent: 5237559 (1993-08-01), Murphy et al.
patent: 2003/0165087 (2003-09-01), Poetsch et al.
patent: 666 495 (1995-08-01), None
patent: 1091573 (2001-04-01), None
Richter D. et al., “Restoration of Optical Variable Density Sound Tracks on Motion Picture Films by Digital Image Processing”, Optim. Proceedings of the International Conference on Optimization of Electrical and Electronic Equipments, XX, XX, vol. 3, May 11, 2000, pp. 793-798, XP008002764.
Search Report Appl. #PCT/US02/27595.

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