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US 4,360,728 AGranted
Banking card for automatic teller machines and the like
AssigneeDrexler Technology Corporation
InventorJerome Drexler
Life of this patent
Estimating the term…
Abstract
A data card having a pair of spaced apart information records. One record is a strip of high resolution reflective laser recording material, such as a metallic film. The other strip is a magnetic recording material. The strip of laser recording material has a capacity for recording at least 250,000 bits represented by pits having a dimension less than 50 microns.
Claims14
A data card for use with a card reader-writer comprising,
- a wallet size card having opposed sides and a length equal to or exceeding a width,
- a first strip of high resolution reflective direct-read-after-write laser recording material adhered to the card, the reflectivity of said first strip greater than 15%, said first strip being laser recordable in place on said card, and
- a second strip of magnetic recording material adhered to the card.
A data card transaction system comprising,
- a wallet size card having opposed sides and a length equal to or exceeding a width,
- a first strip of high resolution reflective direct-read-after-write laser recording material adhered to the card, the reflectivity of said first strip greater than 15%,
- a second strip of magnetic recording material adhered to the card,
- a laser disposed in laser data-writing relation with respect to said first strip on said card, and a photodetector disposed in reflective data-read relation with respect to the laser and said first strip on said card, and
- a magnetic head disposed in magnetic writing relation with respect to said second strip.
2 more elements
Dependencies are inferred from the claim text.