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US 7,125,644 B2Granted
Systems and methods for storing data on an optical disk
AssigneeHewlett-Packard Development Company, L.P.
InventorsAndrew L. Van Brocklin, Cari Dorsh, Makarand P. Gore
Life of this patent
Estimating the term…
Abstract
Optical disks include machine readable data that is written with dye that is invisible to the naked eye and a laser-imagable coating that forms marks that are visible to the naked eye.
Claims15
An optical disk comprising:
- a portion suitable for laser-writing human-visible data;
- and
- screen printed machine-readable control data written with a dye that is invisible to the naked eye;
- wherein said laser-writable portion and said control data are on the same side of the optical disk.
1 more element
A method for writing data onto an optical disk, the method comprising:
- writing using screen printing machine-readable control data onto p first side of an optical disk with a dye that is not visible to an unaided human eye, and
- using a laser to write human-visible data in a markable laver on said first side of the disk.
A means for storing data on an optical disk, the means comprising:
- means for providing screen printed machine-readable control data on a first side of optical disk, wherein the control data comprises a dye that is invisible to the naked eye;
- and
- means for laser-writing human-visible data on the first side of the disk.
Dependencies are inferred from the claim text.