US3175159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems
Assignee: RCA Corp
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Filing: 1964-07-01
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Granted: 1965-03-23
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 James R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/46; H; H02; H02P; H02P1/00; H02P1/16; H02P1/54; H02P1/58; H02P5/00; H02P5/46; H02P5/52; H02P5/56; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; Y; Y10; Y10S; Y10S388/00; Y10S388/90; Y10S388/901; Y10S388/907; Y10S388/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A FREQUENCY DISCRIMINATOR SYSTEM WHICH COMPRISES A FIRST MONOSTABLE MULTIVIBRATOR, A TRAPEZOID WAVE GENERATOR FOR PROVIDING A TRAPEZOID WAVE HAVING A SLOPING PORTION WHICH IS INITIATED BY THE LEADING EDGE OF THE OUTPUT WAVE FROM SAID MONOSTABLE MULTIVIBRATOR, A SECOND NONOSTABLE MULTIVABRATOR TRIGGERED BY SAID FIRST MONOSTABLE MULTIVIBRATOR UPON OCCURRENCE OF THE LAGGING EDGE OF THE OUTPUT WAVE FROM SAID FIRST MONOSTABE MULTIVIBRATOR, MEANS FOR PROVIDING A SAMPLING PULSE UPON THE OCCURRENCE OF THE LAGGING EDGE OF THE OUTPUT WAVE OF SAID SECOND MONOSTABLE MULTIVIBRATOR WHICH IS DELAYED BY A PREDETERMINED INTERVAL, AND MEANS FOR COMPARING SAID TRAPEZOID WAVE AND SAID SAMPLING PULSE TO PROVIDE AN OUTPUT SIGNAL VARYING IN POLARITY AND MAGNITUDE IN ACCORDANCE WITH TIME DIFFERENCES THEREBETWEEN.
Claim 2
Dependent Claim
119 words
A FREQUENCY DISCRIMINATOR SYSTEM WHICH COMPRISES A FIRST MONOSTABLE MULTIVIBRATOR, A TRAPEZOID WAVE GENERATOR FOR PROVIDING A TRAPEZOID WAVE HAVING A SLOPING PORTION WHICH IS INITIATED BY THE LEADING EDGE OF THE OUTPUT WAVE FROM SAID MONOSTABLE MULTIVIBRATOR, A SECOND NONOSTABLE MULTIVABRATOR TRIGGERED BY SAID FIRST MONOSTABLE MULTIVIBRATOR UPON OCCURRENCE OF THE LAGGING EDGE OF THE OUTPUT WAVE FROM SAID FIRST MONOSTABE MULTIVIBRATOR, MEANS FOR PROVIDING A SAMPLING PULSE UPON THE OCCURRENCE OF THE LAGGING EDGE OF THE OUTPUT WAVE OF SAID SECOND MONOSTABLE MULTIVIBRATOR WHICH IS DELAYED BY A PREDETERMINED INTERVAL, AND MEANS FOR COMPARING SAID TRAPEZOID WAVE AND SAID SAMPLING PULSE TO PROVIDE AN OUTPUT SIGNAL VARYING IN POLARITY AND MAGNITUDE IN ACCORDANCE WITH TIME DIFFERENCES THEREBETWEEN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |