Patent US3303482A successfully refreshed from Google Patents.
US3303482A
Expired / Lapsed
US
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Redundant recording system with parity checking
Assignee: RCA Corp
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Filing: 1963-02-25
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Granted: 1967-02-07
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Robert H Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:32
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/18; G06F11/187; G06F11/14; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1803; G06F11/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE COMBINATION OF A SOURCE OF ONE GROUP OF SIGNALS AND ANOTHER REDUNDANT SOURCE OF A SECOND GROUP OF THE SAME SIGNALS, PARITY CHECKING MEANS FOR CHECKING THE PARTIES OF THE SIGNALS IN THE TWO GROUPS, AND GATING MEANS RESPONSIVE TO SAID PARITY CHECKING MEANS TO SELECT THE GROUP OF SIGNALS HAVING CORRECT PARITY WHEN ONLY ONE GROUP OF SIGNALS HAS CORRECT PARITY, AND TO SELECT BOTH GROUPS OF SIGNALS WHEN NEITHER GROUP HAS CORRECT PARITY.
Claim 2
Dependent Claim
76 words
THE COMBINATION OF A SOURCE OF ONE GROUP OF SIGNALS AND ANOTHER REDUNDANT SOURCE OF A SECOND GROUP OF THE SAME SIGNALS, PARITY CHECKING MEANS FOR CHECKING THE PARTIES OF THE SIGNALS IN THE TWO GROUPS, AND GATING MEANS RESPONSIVE TO SAID PARITY CHECKING MEANS TO SELECT THE GROUP OF SIGNALS HAVING CORRECT PARITY WHEN ONLY ONE GROUP OF SIGNALS HAS CORRECT PARITY, AND TO SELECT BOTH GROUPS OF SIGNALS WHEN NEITHER GROUP HAS CORRECT PARITY.
References Cited (Backward Citations)
US2813259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |