Patent US3337851A successfully refreshed from Google Patents.
US3337851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory organization for reducing access time of program repetitions
Assignee: Unisys Corp
•
Filing: 1963-12-09
•
Granted: 1967-08-22
•
Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 David M Dahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/38; G06F9/3802; G06F9/3808; G06F9/381; G06F12/00; G06F12/02; G06F12/08; G06F9/3867
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A MEMORY ORGANIZATION FOR IMPROVING ACCESS TIME FOR REPEATED MEMORY REQUESTS COMPRISING A LARGE-CAPACITY, SLOW-OPERATING MAIN MEMORY MEANS AND A SMALLER, FASTEROPERATING AUXILIARY MEMORY MEANS, EACH OF SAID MEMORY MEANS HAVING AN ADDRESSING REGISTER CONNECTED TO ACTIVATE SELECTED CONTENTS OF SAID MEMORIES, BOTH OF SAID REGISTERS BEING COMMONLY CONNECTED TO A SINGLE SOURCE OF ADDRESS INSTRUCTIONS, FOR SIMULTANEOUS AND SYNCHRONOUS LOCATION COUNTING OF SAID MEMORIES, A SINGLE EXECUTE INSTRUCTION REGISTER SWITCHABLY CONNECTED TO A SELECTED ONE OF SAID MEMORIES TO RECEIVE THE SELECTIVELY ACTIVATED CONTENTS THEREFROM, AN INTERCONNECTING MEANS BETWEEN SAID MEMORIES TO ENTER INTO SAID AUXILIARY MEMORY MEANS THE SELECTIVELY ACTIVATED CONTENTS OF SAID MAIN MEMORY MEANS WHEN SAID MAIN MEMORY MEANS IS CONNECTED TO SAID EXECUTE INSTRUCTION REGISTER, A CORRESPONDENCE INDICATING
Claim 2
Dependent Claim
123 words
A MEMORY ORGANIZATION FOR IMPROVING ACCESS TIME FOR REPEATED MEMORY REQUESTS COMPRISING A LARGE-CAPACITY, SLOW-OPERATING MAIN MEMORY MEANS AND A SMALLER, FASTEROPERATING AUXILIARY MEMORY MEANS, EACH OF SAID MEMORY MEANS HAVING AN ADDRESSING REGISTER CONNECTED TO ACTIVATE SELECTED CONTENTS OF SAID MEMORIES, BOTH OF SAID REGISTERS BEING COMMONLY CONNECTED TO A SINGLE SOURCE OF ADDRESS INSTRUCTIONS, FOR SIMULTANEOUS AND SYNCHRONOUS LOCATION COUNTING OF SAID MEMORIES, A SINGLE EXECUTE INSTRUCTION REGISTER SWITCHABLY CONNECTED TO A SELECTED ONE OF SAID MEMORIES TO RECEIVE THE SELECTIVELY ACTIVATED CONTENTS THEREFROM, AN INTERCONNECTING MEANS BETWEEN SAID MEMORIES TO ENTER INTO SAID AUXILIARY MEMORY MEANS THE SELECTIVELY ACTIVATED CONTENTS OF SAID MAIN MEMORY MEANS WHEN SAID MAIN MEMORY MEANS IS CONNECTED TO SAID EXECUTE INSTRUCTION REGISTER, A CORRESPONDENCE INDICATING
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |