Film information exchange system with virtual identification cod

Details Film information exchange system with virtual identification cod Film information exchange system with virtual identification cod

1991-04-16

1993-03-16

Gellner, Michael L.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 77, 354106, 352236, G03B 1724, G03D 2752

Patent

active

051948923

ABSTRACT:
A virtually transparent magnetic layer is included as an additional layer in a photographic film. Information exchange between various users of the film, such as the film manufacturer, the camera user, the dealer and photofinisher, is carried via plural longitudinal magnetic tracks on the film, each track being dedicated to the writing and reading of a predetermined set of related parameters. The tracks are divided into data fields. A data field includes a virtual identification code and a plurality of sub-fields representative of different parameters. The virtual identification code serves as an address to corresponding stored instructions which identify and interpret the data in the corresponding sub-fields. Look-up tables addressed by said virtual identification codes can include bit-map instructions, state identifier instructions, and/or scaling algorithm instructions.

REFERENCES:
patent: 3379095 (1968-04-01), Kaprelian
patent: 3782947 (1974-01-01), Krall
patent: 3926633 (1975-12-01), Custer
patent: 4054920 (1977-10-01), Kittag
patent: 4358805 (1982-11-01), Stemme et al.
patent: 4441807 (1984-04-01), Bartz
patent: 4443099 (1984-04-01), Linman et al.
patent: 4482924 (1984-11-01), Brownstein
patent: 4760428 (1988-07-01), Watanabe et al.
patent: 4965627 (1990-10-01), Robison
"DATAKODE Magnetic Control Surface", Eastman Kodak Company, 1983 pp. 1-3.
"Technical Experience with Datakode Magnetic Control Surface", Eastman Kodak Company, 1984 pp. 1-24.

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