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AssigneeDolby Laboratories Licensing Corporation
InventorsCharles Gordon Seagrave, Martin John Richards, Douglas Evan Mandell, Mark Leighton Atherton
Estimating the term…
A storage medium carries physically distinct blocks of symbols representing digital information. The symbols are arranged in the blocks such that the digital information represented by the symbols can be determined from only the two-dimensional position of the symbols relative to one another and any other differentiable characteristic intrinsic to the symbols. A method and apparatus recovers the symbols using oversampling in two dimensions and derives the information represented by the symbols. Blocks having two or more two-dimensional alignment patterns with good auto-correlation properties are used in some embodiments to facilitate recovery of the digital information. In one embodiment, motion picture film carries a conventional analog soundtrack and a digital soundtrack for a plurality of channels; the digital soundtrack is represented by symbols carried on the film in the areas between sprocket hole perforations.
An information storage medium carrying two or more physically distinct blocks of differentiable symbols representing digital information, wherein said blocks comprise two or more two-dimensional alignment patterns, and wherein said symbols are arranged in said blocks such that said digital information represented by said symbols can be determined from only the two-dimensional positioning of the symbols relative to one another and any other differentiable characteristic intrinsic to said symbols.
Motion picture film having a width of either 35 mm or 70 mm and having sprocket hole perforations along both of its edges, the film having blocks of optically differentiable symbols located between sprocket hole perforations on at least one edge of the film, the symbols representing digital information into which a plurality of high-fidelity motion picture soundtrack channels are encoded.
An information storage medium carrying two or more physically distinct blocks of differentiable symbols representing digital information, wherein said blocks comprise one or more two-dimensional alignment patterns each having autocorrelation characteristics such that a low autocorrelation value results when a respective one of said alignment patterns is not congruent with itself, and wherein said symbols are arranged in said blocks such that said digital information represented by said symbols can be determined from only the two-dimensional positioning of the symbols relative to one another and any other differentiable characteristic intrinsic to said symbols.
An information storage medium carrying two or more physically distinct blocks of differentiable symbols representing digital information comprising words represented by symbols arranged in two-dimensional groups having a shape such that numbers of said groups affected by error-causing phenomena is minimized.
Dependencies are inferred from the claim text.