US3243604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp-limit network for providing a limited output signal which is not affected by noise
Assignee: BARNES ENGINWEERING Co
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Filing: 1963-06-10
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Granted: 1966-03-29
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Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 Norman J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:13
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/08; H03K5/082; H03K5/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
211 words
A CLAMP-LIMIT NETWORK FOR PROVIDING A LIMITED OUTPUT SIGNAL WHICH IS NOT AFFECTED BY THE PRESENCE OR ABSENCE OF NOISE, SAID NETWORK COMPRISING (A) A CAPACITOR COUPLED TO A SOURCE OF INPUT SIGNALS WHICH MAY INCLUDE NOISE, (B) A FIRST D.C. AMPLIFIER HAVING AN INPUT CONNECTED TO SAID CAPACITOR AND AN OUTPUT, (C) MEANS FOR BIASING SAID FIRST AMPLIFIER BELOW A PREDETERMINED CLAMP LEVEL, (D) A LIMITER CONNECTED TO THE OUTPUT OF SAID FIRST AMPLIFIER FOR LIMITING THE AMPLITUDE OF OUTPUT SIGNALS FROM SAID FIRST AMPLIFIER, (E) A LOW-PASS FILTER HAVING AN INPUT CONNECTED TO RECEIVE THE OUTPUT SIGNALS FROM SAID FIRST AMPLIFIER AND AN OUTPUT, (F) A SECOND D.C. AMPLIFIER HAVING AN INPUT CONNECTED TO THE OUTPUT OF SAID FILTER AND AN OUTPUT, (G) THRESHOLD MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND AMPLIFIER AND THE INPUT OF SAID FIRST AMPLIFIER FOR PROVIDING A DRIVE SIGNAL OPPOSITE IN POLARITY TO THE BIASING MEANS OF SAID FIRST AMPLIFIER WHENEVER THE OUTPUT OF SAID SECOND AMPLIFIER DROPS BELOW SAID PREDETERMINED CLAMP LEVEL, WHEREBY THE CLAMP FUNCTION AT THE INPUT OF SAID FIRST AMPLIFIER IS DERIVED FROM THE SIGNAL AT THE OUTPUT OF SAID SECOND AMPLIFIER AFTER FILTERING AND THE LIMITING FUNCTION IS ACCOMPLISHED AT THE OUTPUT OF SAID FIRST AMPLIFIER BEFORE FILTERING.
Claim 2
Dependent Claim
211 words
A CLAMP-LIMIT NETWORK FOR PROVIDING A LIMITED OUTPUT SIGNAL WHICH IS NOT AFFECTED BY THE PRESENCE OR ABSENCE OF NOISE, SAID NETWORK COMPRISING (A) A CAPACITOR COUPLED TO A SOURCE OF INPUT SIGNALS WHICH MAY INCLUDE NOISE, (B) A FIRST D.C. AMPLIFIER HAVING AN INPUT CONNECTED TO SAID CAPACITOR AND AN OUTPUT, (C) MEANS FOR BIASING SAID FIRST AMPLIFIER BELOW A PREDETERMINED CLAMP LEVEL, (D) A LIMITER CONNECTED TO THE OUTPUT OF SAID FIRST AMPLIFIER FOR LIMITING THE AMPLITUDE OF OUTPUT SIGNALS FROM SAID FIRST AMPLIFIER, (E) A LOW-PASS FILTER HAVING AN INPUT CONNECTED TO RECEIVE THE OUTPUT SIGNALS FROM SAID FIRST AMPLIFIER AND AN OUTPUT, (F) A SECOND D.C. AMPLIFIER HAVING AN INPUT CONNECTED TO THE OUTPUT OF SAID FILTER AND AN OUTPUT, (G) THRESHOLD MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND AMPLIFIER AND THE INPUT OF SAID FIRST AMPLIFIER FOR PROVIDING A DRIVE SIGNAL OPPOSITE IN POLARITY TO THE BIASING MEANS OF SAID FIRST AMPLIFIER WHENEVER THE OUTPUT OF SAID SECOND AMPLIFIER DROPS BELOW SAID PREDETERMINED CLAMP LEVEL, WHEREBY THE CLAMP FUNCTION AT THE INPUT OF SAID FIRST AMPLIFIER IS DERIVED FROM THE SIGNAL AT THE OUTPUT OF SAID SECOND AMPLIFIER AFTER FILTERING AND THE LIMITING FUNCTION IS ACCOMPLISHED AT THE OUTPUT OF SAID FIRST AMPLIFIER BEFORE FILTERING.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |