Patent US3354430A successfully refreshed from Google Patents.
US3354430A
Expired / Lapsed
US
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Memory control matrix
Assignee: International Business Machines Corp
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Filing: 1965-06-30
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Granted: 1967-11-21
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl Zeitler
- 👤 Lawrence J Boland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:18
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
FOR USE IN A DATA PROCESSING SYSTEM INCLUDING MEMORY MEANS STORING DATA AT DIFFERENT ADDRESSES THEREIN, A PLURALITY OF ADDRESSABLE DATA UTILIZATION MEANS, AND A CENTRAL PROCESSING UNIT FOR CONTROLLING THE TRANSFER OF ADDRESSED DATA BETWEEN THE MEMORY MEANS AND A FIRST ADDRESSED UTILIZATION MEANS, THE MEMORY HAVING A DATA ACCESS-TIME LONGER THAN THE TIME OF EACH OPERATING CYCLE OF THE CENTRAL PROCESSING UNIT; A CONTROL DEVICE SYNCHRONIZED WAITH THE CENTRAL PROCESSING UNIT FOR ADDRESSING A SECOND DATA UTILIZATION MEANS DURING SAID MEMORY ACCESSTIME SO THAT THE DATA FROM THE MEMORY IS TRANSFERRED AT THE END OF SAID MEMORY ACCESS-TIME TO SAID SECOND UTILIZATION MEANS INSTEAD OF TO SAID FIRST DATA UTILIZATION MEANS.
Claim 2
Dependent Claim
113 words
FOR USE IN A DATA PROCESSING SYSTEM INCLUDING MEMORY MEANS STORING DATA AT DIFFERENT ADDRESSES THEREIN, A PLURALITY OF ADDRESSABLE DATA UTILIZATION MEANS, AND A CENTRAL PROCESSING UNIT FOR CONTROLLING THE TRANSFER OF ADDRESSED DATA BETWEEN THE MEMORY MEANS AND A FIRST ADDRESSED UTILIZATION MEANS, THE MEMORY HAVING A DATA ACCESS-TIME LONGER THAN THE TIME OF EACH OPERATING CYCLE OF THE CENTRAL PROCESSING UNIT; A CONTROL DEVICE SYNCHRONIZED WAITH THE CENTRAL PROCESSING UNIT FOR ADDRESSING A SECOND DATA UTILIZATION MEANS DURING SAID MEMORY ACCESSTIME SO THAT THE DATA FROM THE MEMORY IS TRANSFERRED AT THE END OF SAID MEMORY ACCESS-TIME TO SAID SECOND UTILIZATION MEANS INSTEAD OF TO SAID FIRST DATA UTILIZATION MEANS.
References Cited (Backward Citations)
US3201762A
Cited
US3015441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |