Method and apparatus of reproducing a digital signal recorded on

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

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G03B 3102

Patent

active

055438687

ABSTRACT:
A method and apparatus for optically reading or reproducing digital information recorded as a plurality of pits on at least one track of a movie film. A linear light source having a plurality of light elements, such as LED's, is arranged such that light from at least one of the light elements is irradiated on each of the pits. The light or optical beam from the linear light source is transmitted through the pits of the movie film and received by a light receiving element, such as a photodiode, having a single light receiving portion. The light elements of the linear light source are lit sequentially so that the digital information recorded in each line of each track may be read out at a pit unit by the light receiving element.

REFERENCES:
patent: 2200106 (1940-05-01), Steube
patent: 2347084 (1944-04-01), Cooney
patent: 2485829 (1949-10-01), Holst et al.
patent: 3502398 (1970-03-01), Michelson
patent: 3806643 (1974-04-01), Russell
patent: 3915566 (1975-10-01), Fisher
patent: 3932032 (1976-01-01), Weinstein
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: 4074085 (1978-02-01), Russell
patent: 4085296 (1978-04-01), Keegan
patent: 4124784 (1978-11-01), Johnson et al.
patent: 4202018 (1980-05-01), Stockham, Jr.
patent: 4215920 (1980-08-01), Butler
patent: 4223188 (1980-09-01), Dolby
patent: 4256389 (1981-03-01), Engebretson
patent: 4306781 (1981-12-01), Mosely
patent: 4355383 (1982-10-01), Dolby
patent: 4404427 (1983-09-01), Blackmer
patent: 4461552 (1984-07-01), Levine
patent: 4491399 (1985-01-01), Bell
patent: 4553833 (1985-11-01), Kanaoka et al.
patent: 4577302 (1986-03-01), Allen
patent: 4589129 (1986-05-01), Blackmer et al.
patent: 4600280 (1986-07-01), Clark
patent: 4603099 (1986-07-01), Drexler
patent: 4622598 (1986-11-01), Doi et al.
patent: 4659198 (1987-04-01), Beauviala et al.
patent: 4680796 (1987-07-01), Blackmer et al.
patent: 4691112 (1987-09-01), Wydler
patent: 4706287 (1987-11-01), Blackmer et al.
patent: 4758485 (1988-07-01), Drexler
patent: 4870633 (1989-09-01), Matsushita et al.
patent: 4893921 (1990-01-01), Beauviala
patent: 4962432 (1990-10-01), Ohtsuka et al.
patent: 5088813 (1992-02-01), Wakefield
patent: 5101096 (1992-03-01), Ohyama et al.
patent: 5155510 (1992-10-01), Beard
patent: 5164574 (1992-11-01), Ujiie et al.
patent: 5231627 (1993-07-01), Paul et al.
patent: 5237559 (1993-08-01), Murphy et al.

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