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US 2006/0158613 A1Published application
Apparatus for recording data on motion picture film
AssigneeThomson Licensing
InventorsJames Fancher, Jeff Rosica
Life of this patent
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Abstract
A film record comprises a film strip representing a plurality of frames. At least one of the frames includes at least one region wherein the optical density of the region is representative of a symbol from a constellation of symbols.
Claims54
A medium having data stored thereon, comprising:
- a film;
- wherein portions of the film represent different optical density values representing the data;
- and
- wherein each level of optical density is associated with a symbol from a constellation of symbols, and wherein each symbol represents a plurality of bits of data.
1 more element
An apparatus comprising:
- a mapper for selecting one of a number of optical density levels as a function of data applied to the mapper, wherein each optical density level represents a symbol from a constellation of symbols, and wherein each symbol represents a plurality of bits of data;
- and
- a light source for exposing a film such that the selected optical density level is recorded on the film.
A cartridge, comprising:
- a film;
- and
- a housing for enclosing the film;
- wherein portions of the film represent different optical density values, and
- wherein each level of optical density is associated with a symbol from a constellation of symbols, and wherein each symbol represents a plurality of bits of data, whereby the film stores data.
2 more elements
A method for storing data, the method comprising:
- receiving data;
- mapping the data to a symbol selected from a constellation of symbols and wherein each symbol represents a plurality of bits of data, and wherein each symbol is associated with a respective optical density level;
- and
- recording the symbol on film by creating thereon the respective optical density level.
1 more element
An apparatus comprising:
- a detector for detecting optical density levels recorded on a film, each optical density level representing a symbol from a constellation of symbols, wherein each symbol is associated with a plurality of bits of data;
- and
- a demapper, responsive to the detected optical density levels, for providing data associated therewith.
A method for recovering data stored on film, the method comprising:
- detecting optical density levels recorded on the film;
- and
- recovering the data from the detected optical density levels, wherein each detected optical density level is associated with a symbol from a constellation of symbols for use in recovering the data, and wherein each symbol is associated with a plurality of bits of data.
Dependencies are inferred from the claim text.