US3251042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital computer
Assignee: Unisys Corp
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Filing: 1962-06-14
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Granted: 1966-05-10
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Expires: 1982-06-14
Abstract
No abstract record available.
Inventors
- 👤 Paul D King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
277 words
A DIGITAL COMPUTER COMPRISING FIRST AND SECOND REGISTERS, AN ADDRESSABLE TEMPORARY STORAGE FACILITY FOR STORING A GROUP OF WORDS IN AN ADDRESS SEQUENCE IDENTIFYING THE ORDER IN WHICH THEY ARE RECEIVED, MEANS ASSOCIATED WITH THE FIRST REGISTER FOR GENERATING A SIGNAL INDICATING WHETHER OR NOT THE FIRST REGISTER IS FULL OF USABLE INFORMATION, MEANS ASSOCIATED WITH THE SECOND REGISTER FOR GENERATING A SIGNAL INDICATING WHETHER OR NOT THE SECOND REGISTER IS FULL OF USABLE INFORMATION, MEANS RESPONSIVE TO THE SIGNALS FROM SAID FIRST AND SECOND SIGNAL GENERATING MEANS WHEN THE REGISTERS ARE BOTH FULL FOR PERFORMING AN ARITHMETIC OPERATION ON THE CONTENTS OF THE FIRST AND SECOND REGISTERS AND PLACING THE RESULT BACK IN ONE OF SAID REGISTERS, MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST AND SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT THE FIRST REGISTER IS FULL AND THE SECOND REGISTER IS EMPTY FOR TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER, MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST AND SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT THE FIRST REGISTER IS EMPTY AND THE SECOND REGISTER FULL FOR TRANSFERRING THE CONTENDS OF THE SECOND REGISTER TO THE FIRST REGISTER AND TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER, AND MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT BOTH REGISTERS ARE EMPTY FOR TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE FIRST REGISTER AND TRANSFERRING THE NEXT TO LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER.
Claim 2
Dependent Claim
277 words
A DIGITAL COMPUTER COMPRISING FIRST AND SECOND REGISTERS, AN ADDRESSABLE TEMPORARY STORAGE FACILITY FOR STORING A GROUP OF WORDS IN AN ADDRESS SEQUENCE IDENTIFYING THE ORDER IN WHICH THEY ARE RECEIVED, MEANS ASSOCIATED WITH THE FIRST REGISTER FOR GENERATING A SIGNAL INDICATING WHETHER OR NOT THE FIRST REGISTER IS FULL OF USABLE INFORMATION, MEANS ASSOCIATED WITH THE SECOND REGISTER FOR GENERATING A SIGNAL INDICATING WHETHER OR NOT THE SECOND REGISTER IS FULL OF USABLE INFORMATION, MEANS RESPONSIVE TO THE SIGNALS FROM SAID FIRST AND SECOND SIGNAL GENERATING MEANS WHEN THE REGISTERS ARE BOTH FULL FOR PERFORMING AN ARITHMETIC OPERATION ON THE CONTENTS OF THE FIRST AND SECOND REGISTERS AND PLACING THE RESULT BACK IN ONE OF SAID REGISTERS, MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST AND SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT THE FIRST REGISTER IS FULL AND THE SECOND REGISTER IS EMPTY FOR TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER, MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST AND SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT THE FIRST REGISTER IS EMPTY AND THE SECOND REGISTER FULL FOR TRANSFERRING THE CONTENDS OF THE SECOND REGISTER TO THE FIRST REGISTER AND TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER, AND MEANS RESPONSIVE TO THE SIGNALS FROM THE FIRST SECOND SIGNAL GENERATING MEANS WHEN INDICATING THAT BOTH REGISTERS ARE EMPTY FOR TRANSFERRING THE LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE FIRST REGISTER AND TRANSFERRING THE NEXT TO LAST WORD IN THE ADDRESSABLE SEQUENCE IN THE TEMPORARY STORAGE FACILITY TO THE SECOND REGISTER.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |