Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
Patent
1994-02-07
1996-06-11
Gellner, Michael L.
Optics: motion pictures
With sound accompaniment
Common picture and sound record carrier systems
352 37, 369125, G03B 3102, G11B 700
Patent
active
055260756
ABSTRACT:
An analog-digitizer sound system for motion pictures that automatically converts both old and new analog stereo film-sound tracks to digital quality sound. The system eliminates the noise, rumble and hiss from any standard 35 mm analog optical sound track. By simply playing the film through the projector sound head in the normal manner the system automatically converts the analog optical sound tracks to digital format. No special storing of digital data on film is required and no special digital decoder equipment is needed. The system produces noise-free sound, increased frequency response, expanded dynamic range and clarity of dialogue. Film studios will no longer need to maintain a double inventory of digital and analog sound or process sound tracks for noise reduction.
REFERENCES:
patent: 3915566 (1975-10-01), Fisher
patent: 3964826 (1976-06-01), Joseph et al.
patent: 3973839 (1976-08-01), Stumpf et al.
patent: 4027958 (1977-06-01), Shigeta et al.
patent: 4085296 (1978-04-01), Keegan
patent: 4124784 (1978-11-01), Johnson et al.
patent: 4181433 (1980-01-01), Marcuse
patent: 4215920 (1980-08-01), Butler
patent: 4355383 (1982-10-01), Dolby
patent: 4491399 (1985-01-01), Bell
patent: 4577302 (1986-03-01), Allen
patent: 4600280 (1986-07-01), Clark
patent: 4603099 (1986-07-01), Drexler
patent: 4691112 (1987-09-01), Wydler
patent: 4758485 (1988-07-01), Drexler
patent: 4827125 (1989-05-01), Goldstein
patent: 4962432 (1990-10-01), Ohtsuka et al.
patent: 5101096 (1992-03-01), Ohyama et al.
patent: 5152295 (1992-10-01), Kobayashi et al.
patent: 5164574 (1992-11-01), Ujiie et al.
patent: 5212583 (1993-05-01), Vali et al.
patent: 5231627 (1993-07-01), Paul et al.
Digital Technology Systems of California, Inc.
Gellner Michael L.
Lee Eddie C.
Rogitz John L.
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