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US 2004/0218518 A1Published application
Multi-layered data storage card
AssigneeDcard, Inc.
InventorsJeffrey Liu, Francis K. King
Life of this patent
Estimating the term…
Abstract
A multiple layer data storage card for storage of machine-readable information includes an optical memory area subjected to optical information recording and reproduction, comprising, a card-like card body, an optical recording portion provided on said card body, and optionally a conventional magnetic data stripe area, and a smart card IC area. The optical memory area including an optionally pre-recorded data area and a recordable area all with pre-grooved track segment arrangement for logical data recording and retrieving.
Claims59
A data-storage card comprising:
- at least an optical data track for storing data accessible with an optical pickup head wherein said optical data track disposed on an integrated layer formed by processing a disc to form said data storage card.
A method to form an optical data storage card comprising:
- forming at least a segmented optical data track in a disk as an integrated layer for storing data accessible with an optical pickup head.
Dependencies are inferred from the claim text.