US3149314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core memory addressing
Assignee: Unisys Corp
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Filing: 1962-04-12
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Granted: 1964-09-15
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Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 John J King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
G; G11; G11C; G11C7/00; G11C7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
A CORE MEMORY MATRIX COMPRISING A PLURALITY OF FERROMAGNETIC STORAGE ELEMENTS EACH OF WHICH IS PROVIDED WITH TWO APERTURES SO POSITIONED TO PROVIDE EACH ELEMENT WITH TWO NARROW LEGS SATURABLE MAGNETICALLY AND A WIDER LEG REQUIRING AT LEAST AS MUCH FLUX FOR SATURATION AS BOTH NARROW LEGS TOGETHER REQUIRE FOR THEIR SATURATION, A FIRST LEAD THREADED TO LINK A NARROW LEG OF ALL SAID ELEMENTS, SAID FIRST LEAD BEING ADAPTED TO BE EXCITED TO DRIVE FLUX IN A LINKED LEG OF A GIVEN ELEMENT IN A DIRECTION WHICH IS COUNTER TO THE DIRECTION OF THE FLUX IN THAT LEG WHEN THE ELEMENT STORES A FIRST FORM OF DATA BUT IN THE SAME DIRECTION AS THE FLUX IN THAT LEG WHEN IT STORES A SECOND FORM OF DATA, A PLURALITY OF LEADS EACH RESPECTIVELY THREADED TO LINK THE FREE NARROW LEG OF AN ELEMENT, EACH OF SAID LAST-NAMED LEADS BEING ADAPTED TO BE EXCITED TO DRIVE FLUX IN THE LINKED LEG OF ITS RESPECTIVE ELEMENT IN A DIRECTION WHICH IS THE SAME AS THE DIRECTION OF FLUX IN THAT LEG WHEN THAT ELEMENT STORES EITHER FORM OF DATA, MEANS ADAPTED TO EXCITE SAID FIRST LEAD AND THEN THE OTHER LEAD OF AN ELEMENT THE STORED DATA OF WHICH IS DESIRED TO BE DETERMINED, AND MEANS RESPONSIVE TO SENSE
Claim 2
Dependent Claim
217 words
A CORE MEMORY MATRIX COMPRISING A PLURALITY OF FERROMAGNETIC STORAGE ELEMENTS EACH OF WHICH IS PROVIDED WITH TWO APERTURES SO POSITIONED TO PROVIDE EACH ELEMENT WITH TWO NARROW LEGS SATURABLE MAGNETICALLY AND A WIDER LEG REQUIRING AT LEAST AS MUCH FLUX FOR SATURATION AS BOTH NARROW LEGS TOGETHER REQUIRE FOR THEIR SATURATION, A FIRST LEAD THREADED TO LINK A NARROW LEG OF ALL SAID ELEMENTS, SAID FIRST LEAD BEING ADAPTED TO BE EXCITED TO DRIVE FLUX IN A LINKED LEG OF A GIVEN ELEMENT IN A DIRECTION WHICH IS COUNTER TO THE DIRECTION OF THE FLUX IN THAT LEG WHEN THE ELEMENT STORES A FIRST FORM OF DATA BUT IN THE SAME DIRECTION AS THE FLUX IN THAT LEG WHEN IT STORES A SECOND FORM OF DATA, A PLURALITY OF LEADS EACH RESPECTIVELY THREADED TO LINK THE FREE NARROW LEG OF AN ELEMENT, EACH OF SAID LAST-NAMED LEADS BEING ADAPTED TO BE EXCITED TO DRIVE FLUX IN THE LINKED LEG OF ITS RESPECTIVE ELEMENT IN A DIRECTION WHICH IS THE SAME AS THE DIRECTION OF FLUX IN THAT LEG WHEN THAT ELEMENT STORES EITHER FORM OF DATA, MEANS ADAPTED TO EXCITE SAID FIRST LEAD AND THEN THE OTHER LEAD OF AN ELEMENT THE STORED DATA OF WHICH IS DESIRED TO BE DETERMINED, AND MEANS RESPONSIVE TO SENSE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |