US3196259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parity checking system
Assignee: Unisys Corp
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Filing: 1962-05-09
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Granted: 1965-07-20
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:28
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A PARITY GENERATOR FOR GENERATING THE PARITY OF AN N-BIT BINARY NUMBER, THE COMBINATION COMPRISING: FIRST HALF-ADDER MEANS; RESULT STORAGE MEANS RESPONSIVE TO SAID HALF-ADDER MEANS FOR STORING THE RESULTS OF HALF-ADD OPERATIONS PERFORMED THEREBY; FIRST AND SECOND REGISTER MEANS FOR STORING SAID N-BIT BINARY NUMBER; MEANS FOR APPLYING THE CONTENT OF SAID FIRST REGISTER MEANS TO SAID HALF-ADDER WITHOUT SHIFT; AND MEANS FOR APPLYING THE CONTENT OF SAID SECOND REGISTER MEANS TO SAID HALF-ADDER WITH A SHIFT OF ONE BINARY PLACE TO THE LEFT WHEREBY ALTERNATE
Claim 2
Dependent Claim
88 words
IN A PARITY GENERATOR FOR GENERATING THE PARITY OF AN N-BIT BINARY NUMBER, THE COMBINATION COMPRISING: FIRST HALF-ADDER MEANS; RESULT STORAGE MEANS RESPONSIVE TO SAID HALF-ADDER MEANS FOR STORING THE RESULTS OF HALF-ADD OPERATIONS PERFORMED THEREBY; FIRST AND SECOND REGISTER MEANS FOR STORING SAID N-BIT BINARY NUMBER; MEANS FOR APPLYING THE CONTENT OF SAID FIRST REGISTER MEANS TO SAID HALF-ADDER WITHOUT SHIFT; AND MEANS FOR APPLYING THE CONTENT OF SAID SECOND REGISTER MEANS TO SAID HALF-ADDER WITH A SHIFT OF ONE BINARY PLACE TO THE LEFT WHEREBY ALTERNATE
References Cited (Backward Citations)
US3069657A
Cited
US3114130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |