US3214595A
Expired / Lapsed
US
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Flying spot storage devices using photo-electric readout
Assignee: Ferranti International PLC
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Filing: 1962-06-01
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Granted: 1965-10-26
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Johnson Kenneth Charles
- 👤 Scarrott Gordon George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:26
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; G; G03; G03B; G03B21/00; G11; G11C; G11C13/00; G11C13/04; H01J2229/00; H01J2229/89; H01J2229/8926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A FLYING SPOT STORAGE DEVICE INCLUDING A CATHODERAY TUBE HAVING A SCREEN AND BEAM DEFLECTING MEANS FOR DRIVING A SPOT TO ANY ONE OF A DEFINED NUMBER OF POSITIONS FORMING A MATRIX AREA ON SAID SCREEN, AN OPTICAL SYSTEM INCLUDING TWO PAIRS OF FACING PARALLEL REFLECTING SURFACES FORMING A CYLINDER OF SQUARE CROSS-SECTION ADAPTED TO PRODUCE AN ARRAY OF IMAGES OF THE MATRIX AREA FORMED ON THE SCREEN OF THE CATHODE-RAY TUBE, ONE END OF SAID CYLINDER BEING POSITIONED IN FRONT OF SAID SCREEN, A STORAGE PLATE POSITIONED BEYOND THE OTHER END OF SAID CYLINDER, SAID OPTICAL SYSTEM FURTHER INCLUDING A LENS SYSTEM DISPOSED BETWEEN THE OTHER END OF SAID CYLINDER AND THE STORAGE PLATE ADAPTED TO PROJECT SAID ARRAY OF IMAGES ONTO SAID STORAGE PLATE, AND A PHOTOELECTRIC CELL ARRANGED BEHIND EACH IMAGE AREA ON THE STORAGE PLATE.
Claim 2
Dependent Claim
139 words
A FLYING SPOT STORAGE DEVICE INCLUDING A CATHODERAY TUBE HAVING A SCREEN AND BEAM DEFLECTING MEANS FOR DRIVING A SPOT TO ANY ONE OF A DEFINED NUMBER OF POSITIONS FORMING A MATRIX AREA ON SAID SCREEN, AN OPTICAL SYSTEM INCLUDING TWO PAIRS OF FACING PARALLEL REFLECTING SURFACES FORMING A CYLINDER OF SQUARE CROSS-SECTION ADAPTED TO PRODUCE AN ARRAY OF IMAGES OF THE MATRIX AREA FORMED ON THE SCREEN OF THE CATHODE-RAY TUBE, ONE END OF SAID CYLINDER BEING POSITIONED IN FRONT OF SAID SCREEN, A STORAGE PLATE POSITIONED BEYOND THE OTHER END OF SAID CYLINDER, SAID OPTICAL SYSTEM FURTHER INCLUDING A LENS SYSTEM DISPOSED BETWEEN THE OTHER END OF SAID CYLINDER AND THE STORAGE PLATE ADAPTED TO PROJECT SAID ARRAY OF IMAGES ONTO SAID STORAGE PLATE, AND A PHOTOELECTRIC CELL ARRANGED BEHIND EACH IMAGE AREA ON THE STORAGE PLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |