US3226691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data processing apparatus
Assignee: International Computers and Tabulators Ltd
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Filing: 1962-01-22
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Granted: 1965-12-28
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Hazard Robin Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/32; G06F9/322; G06F9/325; G06F9/44; G06F9/448; G06F9/4482; G06F9/4484; G06F9/4486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
286 words
DATA PROCESSING APPARATUS CONTROLLED IN OPERATION BY SEQUENCES OF PROGRAM INSTRUCTIONS, INCLUDING STORAGE MEANS FOR PROGRAM INSTRUCTIONS, SAID STORAGE MEANS HAVING A PLURALITY O INDIVIDUALLY ADDRESSABLE STORAGE LOCATIONS IN WHICH AT LEAST TWO PARTIAL PROGRAMS OF INSTRUCTIONS ARE STORED; AT LEAST TWO INDEPENDENTLY SELECTABLE PROGRAM INSTRUCTION ADDRESS INDICATORS EACH ASSOCIATED WITH A CORRESPONDING PARTIAL PROGRAM RESPECTIVELY AND EACH CONTAINING AN EFFECTIVE AND AN INEFFECTIVE STORAGE LOCATION, SAID EFFECTIVE STORAGE LOCATION SPECIFYING THE ADDRESS OF A PROGRAM INSTRUCTION; MEANS FOR SELECTING ONE OF SAID PROGRAM INSTRUCTION ADDRESS INDICATORS; MEANS FOR READING OUT THE PROGRAM INSTRUCTION FROM THE ADDRESS SPECIFIED IN SAID EFFECTIVE STORAGE LOCATION OF THE SELECTED INDICATOR; MEANS FOR REGISTERING THE PROGRAM INSTRUCTION READ OUT; AND CONTROL MEANS NORMALLY RESPONSIVE TO A REGISTERED INSTRUCTION TO PERFORM THE OPERATION SPECIFIED THEREBY, TO MODIFY THE ADDRESS SPECIFIED IN SAID EFFECTIVE LOCATION OF THE SELECTED INDICATOR TO SPECIFY THE ADDRESS OF THE NEXT INSTRUCTION IN SEQUENCE OF THE ASSOCIATED PARTIAL PROGRAM, AND TO CONDITION THE SELECTING MEANS TO RESELECT THE SAME PROGRAM INSTRUCTION ADDRESS INDICATOR; SAID CONTROL MEANS FURTHER INCLUDING MEANS FOR IDENTIFYING SPECIAL INSTRUCTIONS OF A FIRST AND SECOND FORM RESPECTIVELY AND MEANS RESPONSIVE TO SUCH IDENTIFYING MEANS FOR MODIFYING THE OPERATION OF SAID CONTROL MEANS IN RESPONSE TO AN INSTRUCTION OF SAID FIRST FORM TO CONDITION SAID SELECTING MEANS TO SELECT A DIFFERENT PROGRAM INSTRUCTION ADDRESS INDICATOR AND TO ENTER AN IDENTIFICATION OF THE PREVIOUSLY SELECTED PROGRAM INSTRUCTION ADDRESS INDICATOR INTO THE INEFFECTIVE PART OF THE CURRENTLY SELECTED PROGRAM INSTRUCTION ADDRESS INDICATOR, AND IN RESPONSE TO SAID SECOND FORM OF INSTRUCTION TO INTERROGATE SAID INEFFECTIVE PART OF THE CURRENT PROGRAM INSTRUCTION ADDRESS INDICATOR TO CONDITION SAID SELECTING MEANS TO SELECT THE PROGRAM INSTRUCTION ADDRESS INDICATOR IDENTIFIED THEREIN.
Claim 2
Dependent Claim
286 words
DATA PROCESSING APPARATUS CONTROLLED IN OPERATION BY SEQUENCES OF PROGRAM INSTRUCTIONS, INCLUDING STORAGE MEANS FOR PROGRAM INSTRUCTIONS, SAID STORAGE MEANS HAVING A PLURALITY O INDIVIDUALLY ADDRESSABLE STORAGE LOCATIONS IN WHICH AT LEAST TWO PARTIAL PROGRAMS OF INSTRUCTIONS ARE STORED; AT LEAST TWO INDEPENDENTLY SELECTABLE PROGRAM INSTRUCTION ADDRESS INDICATORS EACH ASSOCIATED WITH A CORRESPONDING PARTIAL PROGRAM RESPECTIVELY AND EACH CONTAINING AN EFFECTIVE AND AN INEFFECTIVE STORAGE LOCATION, SAID EFFECTIVE STORAGE LOCATION SPECIFYING THE ADDRESS OF A PROGRAM INSTRUCTION; MEANS FOR SELECTING ONE OF SAID PROGRAM INSTRUCTION ADDRESS INDICATORS; MEANS FOR READING OUT THE PROGRAM INSTRUCTION FROM THE ADDRESS SPECIFIED IN SAID EFFECTIVE STORAGE LOCATION OF THE SELECTED INDICATOR; MEANS FOR REGISTERING THE PROGRAM INSTRUCTION READ OUT; AND CONTROL MEANS NORMALLY RESPONSIVE TO A REGISTERED INSTRUCTION TO PERFORM THE OPERATION SPECIFIED THEREBY, TO MODIFY THE ADDRESS SPECIFIED IN SAID EFFECTIVE LOCATION OF THE SELECTED INDICATOR TO SPECIFY THE ADDRESS OF THE NEXT INSTRUCTION IN SEQUENCE OF THE ASSOCIATED PARTIAL PROGRAM, AND TO CONDITION THE SELECTING MEANS TO RESELECT THE SAME PROGRAM INSTRUCTION ADDRESS INDICATOR; SAID CONTROL MEANS FURTHER INCLUDING MEANS FOR IDENTIFYING SPECIAL INSTRUCTIONS OF A FIRST AND SECOND FORM RESPECTIVELY AND MEANS RESPONSIVE TO SUCH IDENTIFYING MEANS FOR MODIFYING THE OPERATION OF SAID CONTROL MEANS IN RESPONSE TO AN INSTRUCTION OF SAID FIRST FORM TO CONDITION SAID SELECTING MEANS TO SELECT A DIFFERENT PROGRAM INSTRUCTION ADDRESS INDICATOR AND TO ENTER AN IDENTIFICATION OF THE PREVIOUSLY SELECTED PROGRAM INSTRUCTION ADDRESS INDICATOR INTO THE INEFFECTIVE PART OF THE CURRENTLY SELECTED PROGRAM INSTRUCTION ADDRESS INDICATOR, AND IN RESPONSE TO SAID SECOND FORM OF INSTRUCTION TO INTERROGATE SAID INEFFECTIVE PART OF THE CURRENT PROGRAM INSTRUCTION ADDRESS INDICATOR TO CONDITION SAID SELECTING MEANS TO SELECT THE PROGRAM INSTRUCTION ADDRESS INDICATOR IDENTIFIED THEREIN.
References Cited (Backward Citations)
US3015441A
Cited
US3036773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |