Patent US4758286A successfully refreshed from Google Patents.
Patent US3305801A successfully refreshed from Google Patents.
US3305801A
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Variable time constant smoothing circuit
Assignee: Individual
•
Filing: 1964-08-06
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Granted: 1967-02-21
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Expires: 1984-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hartenstein Raymond George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:03
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PULSE SMOOTHING NETWORK COMPRISING: THE COMBINATION OF A NON-LINEAR CIRCUIT IN SERIES WITH A CAPACITOR ELEMENT FOR ELIMINATING RANDOM NOISE FROM A PULSE INPUT SIGNAL; SAID NON-LINEAR CIRCUIT HAVING A V-I CHARACTERISTIC CURVE WITH A HIGH RESISTANCE SLOPE TO A KNEE FOLLOWED BY A LOW RESISTANCE SLOPE IN THE FIRST QUADRANT AND A HIGH RESISTANCE SLOPE TO A KNEE FOLLOWED BY A LOW RESISTANCE SLOPE IN THE THIRD QUADRANT OF A CARTESIAN CO-ORDINATE SYSTEM; THE INPUT TO SAID NETWORK BEING APPLIED TO SAID SERIES COMBINATION; AND THE OUTPUT FROM SAID NETWORK BEING TAKEN ACROSS SAID CAPACITOR ELEMENT.
Claim 2
Dependent Claim
98 words
A PULSE SMOOTHING NETWORK COMPRISING: THE COMBINATION OF A NON-LINEAR CIRCUIT IN SERIES WITH A CAPACITOR ELEMENT FOR ELIMINATING RANDOM NOISE FROM A PULSE INPUT SIGNAL; SAID NON-LINEAR CIRCUIT HAVING A V-I CHARACTERISTIC CURVE WITH A HIGH RESISTANCE SLOPE TO A KNEE FOLLOWED BY A LOW RESISTANCE SLOPE IN THE FIRST QUADRANT AND A HIGH RESISTANCE SLOPE TO A KNEE FOLLOWED BY A LOW RESISTANCE SLOPE IN THE THIRD QUADRANT OF A CARTESIAN CO-ORDINATE SYSTEM; THE INPUT TO SAID NETWORK BEING APPLIED TO SAID SERIES COMBINATION; AND THE OUTPUT FROM SAID NETWORK BEING TAKEN ACROSS SAID CAPACITOR ELEMENT.
References Cited (Backward Citations)
US2122748A
Cited
US2771586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |