Patent US3309688A successfully refreshed from Google Patents.
US3309688A
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Pulse width fault detection apparatus
Assignee: Unisys Corp
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Filing: 1963-12-03
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Granted: 1967-03-14
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Expires: 1983-12-03
Abstract
No abstract record available.
Inventors
- 👤 Yanishevsky Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:50
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/0703; G06F11/0751; G06F11/0754; G06F11/0757; G01; G01R; G01R29/00; G01R29/02; G01R29/027; G01R29/0273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
PULSE WIDTH FAULT DETECTION APPARATUS COMPRISING: (A) A SOURCE OF SIGNAL PULSES OF PREDETERMINED DURATION AND WIDTH; (A1) INPUT SOLID STATE MEANS TO WHICH SAID PULSES OF PREDETERMINED WIDTH ARE APPLIED FROM SAID SOURCE OF PULSES; (B) MEANS FOR SELECTIVELY REPRODUCING THE INPUT SIGNAL PULSES AT AN OUTPUT LINE DIRECTLY COUPLED THERETO; (C) MEANS FOR GENERATING A VOLTAGE WAVEFORM FOR THE TIME PERIOD DURING WHICH A PULSE IS APPLIED TO SAID INPUT MEANS; (D) MEANS ACTUATED BY SAID VOLTAGE WAVEFORM FOR SELECTIVELY INHIBITING SAID OUTPUT MEANS WHEN A SIGNAL OF GREATER THAN THE PREDETERMINED TIME DURATION AND WIDTH OCCURS; AND (E) MEANS FOR RE-ESTABLISHING THE ORIGINAL CIRCUIT CONDITION.
Claim 2
Dependent Claim
108 words
PULSE WIDTH FAULT DETECTION APPARATUS COMPRISING: (A) A SOURCE OF SIGNAL PULSES OF PREDETERMINED DURATION AND WIDTH; (A1) INPUT SOLID STATE MEANS TO WHICH SAID PULSES OF PREDETERMINED WIDTH ARE APPLIED FROM SAID SOURCE OF PULSES; (B) MEANS FOR SELECTIVELY REPRODUCING THE INPUT SIGNAL PULSES AT AN OUTPUT LINE DIRECTLY COUPLED THERETO; (C) MEANS FOR GENERATING A VOLTAGE WAVEFORM FOR THE TIME PERIOD DURING WHICH A PULSE IS APPLIED TO SAID INPUT MEANS; (D) MEANS ACTUATED BY SAID VOLTAGE WAVEFORM FOR SELECTIVELY INHIBITING SAID OUTPUT MEANS WHEN A SIGNAL OF GREATER THAN THE PREDETERMINED TIME DURATION AND WIDTH OCCURS; AND (E) MEANS FOR RE-ESTABLISHING THE ORIGINAL CIRCUIT CONDITION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |