US4609812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prerecorded dual strip data storage card
Assignee: LaserCard Corp
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Filing: 1985-09-10
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Granted: 1986-09-02
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Expires: 2005-09-10
Abstract
Abstract A data storage card having spaced apart data strips. The card is wallet-size and preferably the strips run parallel to the lengthwise dimension of the card. One strip is made of a high capacity reflective read-only optical memory (ROOM) material. The other strip is a magnetic recording material. The high capacity ROOM strip may be made of a laser recorded material or it may be made of a material which is prerecorded using a photographic process. The two strips store complementary data in database applications.
Inventors
- 👤 Jerome Drexler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:53
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/12; G06K19/14; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G11; G11B; G11B7/00; G11B7/002; G11B7/0033; G11B7/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
A data storage card for use with a card reader comprising, a wallet-size card having opposed sides and a length equal to or exceeding a width, a first strip of high resolution reflective read-only optical memory material adhered to the card, said first strip containing photolithographically prerecorded high and low reflectivity data areas representing data bits, the reflective contrast ratio between said high and low reflectivity data areas at least two to one, and a second strip of magnetic recordable material adhered to the card.
Claim 2
Dependent Claim
85 words
A data storage card for use with a card reader comprising, a wallet-size card having opposed sides and a length equal to or exceeding a width, a first strip of high resolution reflective read-only optical memory material adhered to the card, said first strip containing photolithographically prerecorded high and low reflectivity data areas representing data bits, the reflective contrast ratio between said high and low reflectivity data areas at least two to one, and a second strip of magnetic recordable material adhered to the card.
Claim 3
Dependent Claim
20 words
The card of claim 1 wherein said first and second strips are adhered to the same side of said card.
Claim 4
Dependent Claim
19 words
The card of claim 1 wherein said first and second strips are adhered to opposite sides of said card.
Claim 5
Dependent Claim
34 words
The card of claim 1 wherein said first and second strips are disposed parallel to each other and spaced apart on the same side of said card, said strips extending in the lengthwise direction.
Claim 6
Dependent Claim
132 words
A data storage and retrieval 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 read-only optical memory material adhered to the card, said first strip containing photolithographically prerecorded high and low reflectivity data areas representing data bits, the reflective contrast ratio between said high and low reflectivity data areas at least two to one, a second strip of magnetic recordable material adhered to the card, light source means emitting a beam for illuminating data areas on said first strip and a photodetector, said light source means and said photodetector disposed in reflective data-read relation with respect to said first strip of said card, and a magnetic head in magnetic writing relation with respect to said second strip.
Claim 7
Dependent Claim
132 words
A data storage and retrieval 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 read-only optical memory material adhered to the card, said first strip containing photolithographically prerecorded high and low reflectivity data areas representing data bits, the reflective contrast ratio between said high and low reflectivity data areas at least two to one, a second strip of magnetic recordable material adhered to the card, light source means emitting a beam for illuminating data areas on said first strip and a photodetector, said light source means and said photodetector disposed in reflective data-read relation with respect to said first strip of said card, and a magnetic head in magnetic writing relation with respect to said second strip.
Claim 8
Dependent Claim
20 words
The card of claim 5 wherein said first and second strips are adhered to the same side of said card.
Claim 9
Dependent Claim
19 words
The card of claim 5 wherein said first and second strips are adhered to opposite sides of said card.
Claim 10
Dependent Claim
34 words
The card of claim 5 wherein said first and second strips are disposed parallel to each other and spaced apart on the same side of said card, said strips extending in the lengthwise direction.
References Cited (Backward Citations)
US3873813A
Cited
US4150781A
Cited
US4190843A
Cited
US4313188A
Cited
US4305081A
Cited
US4180207A
Cited
US4300143A
Cited
US4202491A
Cited
US4209804A
Cited
US4345261A
Cited
US4467209A
Cited
US4360728A
Cited
US4493887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |