US3136980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core memory matrices
Assignee: Ericsson Telephones Ltd
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Filing: 1959-12-14
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Granted: 1964-06-09
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 George A Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; G; G06; G06F; G06F7/00; G06F7/38; G06F7/383; G06F7/386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
APPARATUS COMPRISING A MAIN MATRIX HAVING A PLURALITY OF GROUPS OF CORES, EACH GROUP STORING A SEPARATE ITEM OF INFORMATION IN A PREDETERMINED CODE BY THE COMBINATION IN WHICH THE CORES THEREOF ARE SET TO THE "1" STATE, FIRST AND SECOND TEMPORARY STORAGE MAGNETIC CORE STORES, EACH STORE HAVING A PLURALITY OF MAGNETIC CORES, WINDINGS COUPLED TO THE CORES OF SAID MATRIX AND SAID STORES, CIRCUIT MEANS INCLUDING LEADS CONNECTING SAID WINDINGS OF SAID FIRST STORE WITH WINDINGS OF SAID MATRIX IN ACCORDANCE WITH A FIRST READ-WRITE COMBINATION SUCH THAT AN ITEM OF INFORMATION READ OUT OF A GROUP OF CORES OF SAID MATRIX MAY BE TEMPORARILY STORES IN SAID FIRST STORE AND A CORRESPONDING ITEM OF INFORMATION WRITTEN BACK INTO SAID GROUP, SAID CORRESPONDING ITEM OF INFORMATION BEING UNMODIFIED CIRCUIT MEANS INCLUDING LEADS CONNECTING SAID WINDINGS OF SAID SECOND STORE WITH WINDINGS OF SAID MATRIX IN ACCORDANCE WITH A SECOND READ-WRITE COMBINATION SUCH THAT AN ITEM OF INFORMATION READ OUT OF A GROUP OF CORES OF SAID MATRIX MAY BE TEMPORARILY STORED IN SAID SECOND STORE AND WRITTEN BACK INTO SAID GROUP WITH A PREDETERMINED MODIFICATION TO SAID ITEM OF INFORMATION, THERE BEING PERFORMED ON THE SAID ITEM OF INFORMATION
Claim 2
Dependent Claim
201 words
APPARATUS COMPRISING A MAIN MATRIX HAVING A PLURALITY OF GROUPS OF CORES, EACH GROUP STORING A SEPARATE ITEM OF INFORMATION IN A PREDETERMINED CODE BY THE COMBINATION IN WHICH THE CORES THEREOF ARE SET TO THE "1" STATE, FIRST AND SECOND TEMPORARY STORAGE MAGNETIC CORE STORES, EACH STORE HAVING A PLURALITY OF MAGNETIC CORES, WINDINGS COUPLED TO THE CORES OF SAID MATRIX AND SAID STORES, CIRCUIT MEANS INCLUDING LEADS CONNECTING SAID WINDINGS OF SAID FIRST STORE WITH WINDINGS OF SAID MATRIX IN ACCORDANCE WITH A FIRST READ-WRITE COMBINATION SUCH THAT AN ITEM OF INFORMATION READ OUT OF A GROUP OF CORES OF SAID MATRIX MAY BE TEMPORARILY STORES IN SAID FIRST STORE AND A CORRESPONDING ITEM OF INFORMATION WRITTEN BACK INTO SAID GROUP, SAID CORRESPONDING ITEM OF INFORMATION BEING UNMODIFIED CIRCUIT MEANS INCLUDING LEADS CONNECTING SAID WINDINGS OF SAID SECOND STORE WITH WINDINGS OF SAID MATRIX IN ACCORDANCE WITH A SECOND READ-WRITE COMBINATION SUCH THAT AN ITEM OF INFORMATION READ OUT OF A GROUP OF CORES OF SAID MATRIX MAY BE TEMPORARILY STORED IN SAID SECOND STORE AND WRITTEN BACK INTO SAID GROUP WITH A PREDETERMINED MODIFICATION TO SAID ITEM OF INFORMATION, THERE BEING PERFORMED ON THE SAID ITEM OF INFORMATION
References Cited (Backward Citations)
US2895124A
Cited
US3018956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |