Patent US3242467A successfully refreshed from Google Patents.
US3242467A
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Assignee: International Business Machines Corp
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Filing: 1960-06-07
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Granted: 1966-03-22
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Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Richard C Lamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/16; G06F13/18; A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
IN A DATA PROCESSING SYSTEM COMPRISING A PLURALITY OF DATA PROCESSORS AND AT LEAST ONE MEMORY UNIT, MEANS FOR GIVING PRIORITY TO A REQUEST FOR SAID MEMORY UNIT MADE BY A PRESELECTED ONE OF SAID DATA PROCESSORS, SAID PRIORITY MEANS COMPRISING A TEMPORARY STORAGE UNIT, A PROCESSOR RECOGNITION UNIT COUPLED TO SAID DATA PROCESSORS, SAID PROCESSOR RECOGNITION UNIT BEING ADAPTED TO PROVIDE A FIRST SIGNAL INDICATIVE OF A REQUEST MADE BY SAID PRESELECTED DATA PROCESSOR, BUSY SIGNAL MEANS COUPLED TO SAID MEMORY UNIT, SAID BUSY SIGNAL MEANS BEING ADAPTED TO PROVIDE A SECOND AND A THIRD SIGNAL INDICATING THAT SAID MEMORY UNIT IS BUSY OR NOT BUSY, RESPECTIVELY, AND CONTROL MEANS COUPLED TO SAID MEMORY UNIT, SAID TEMPORARY STORAGE UNIT, SAID PROCESSOR RECOGNITION UNIT, AND SAID BUSY SIGNAL MEANS, SAID CONTROL MEANS BEING RESPONSIVE TO THE PRESENCE OF SAID THIRD SIGNAL FOR RENDERING SAID MEMORY UNIT RECEPTIVE TO A REQUEST, AND RESPONSIVE TO THE PRESENCE OF SAID SECOND SIGNAL FOR RENDERING SAID MEMORY UNIT NON-RECEPTIVE TO A REQUEST, SAID CONTROL MEANS BEING FURTHER RESPONSIVE TO THE PRESENCE OF BOTH SAID FIRST AND SECOND SIGNAL FOR PASSING A REQUEST INTO SAID TEMPORARY STORAGE UNIT, AND TO THE SUBSEQUENT SUBSTITUTION OF SAID THIRD SIGNAL FOR SAID SECOND SIGNAL TO RENDER SAID MEMORY UNIT RECEPTIVE TO THE REQUEST IN SAID TEMPORARY STORAGE UNIT IN PRIORITY TO ANY OTHER REQUEST.
Claim 2
Dependent Claim
226 words
IN A DATA PROCESSING SYSTEM COMPRISING A PLURALITY OF DATA PROCESSORS AND AT LEAST ONE MEMORY UNIT, MEANS FOR GIVING PRIORITY TO A REQUEST FOR SAID MEMORY UNIT MADE BY A PRESELECTED ONE OF SAID DATA PROCESSORS, SAID PRIORITY MEANS COMPRISING A TEMPORARY STORAGE UNIT, A PROCESSOR RECOGNITION UNIT COUPLED TO SAID DATA PROCESSORS, SAID PROCESSOR RECOGNITION UNIT BEING ADAPTED TO PROVIDE A FIRST SIGNAL INDICATIVE OF A REQUEST MADE BY SAID PRESELECTED DATA PROCESSOR, BUSY SIGNAL MEANS COUPLED TO SAID MEMORY UNIT, SAID BUSY SIGNAL MEANS BEING ADAPTED TO PROVIDE A SECOND AND A THIRD SIGNAL INDICATING THAT SAID MEMORY UNIT IS BUSY OR NOT BUSY, RESPECTIVELY, AND CONTROL MEANS COUPLED TO SAID MEMORY UNIT, SAID TEMPORARY STORAGE UNIT, SAID PROCESSOR RECOGNITION UNIT, AND SAID BUSY SIGNAL MEANS, SAID CONTROL MEANS BEING RESPONSIVE TO THE PRESENCE OF SAID THIRD SIGNAL FOR RENDERING SAID MEMORY UNIT RECEPTIVE TO A REQUEST, AND RESPONSIVE TO THE PRESENCE OF SAID SECOND SIGNAL FOR RENDERING SAID MEMORY UNIT NON-RECEPTIVE TO A REQUEST, SAID CONTROL MEANS BEING FURTHER RESPONSIVE TO THE PRESENCE OF BOTH SAID FIRST AND SECOND SIGNAL FOR PASSING A REQUEST INTO SAID TEMPORARY STORAGE UNIT, AND TO THE SUBSEQUENT SUBSTITUTION OF SAID THIRD SIGNAL FOR SAID SECOND SIGNAL TO RENDER SAID MEMORY UNIT RECEPTIVE TO THE REQUEST IN SAID TEMPORARY STORAGE UNIT IN PRIORITY TO ANY OTHER REQUEST.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |