Patent US3112449A successfully refreshed from Google Patents.
US3112449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter for converting alternating current signals to proportional constant polarity signals including compensating diode feedback
Assignee: General Electric Co
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Filing: 1961-09-29
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Granted: 1963-11-26
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Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Meritt L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/02; H03D1/06; G; G01; G01R; G01R19/00; G01R19/22; G06; G06G; G06G7/00; G06G7/12; G06G7/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A SIGNAL CONVERTER COMPRISING AN AMPLIFIER INCLUDING A FEEDBACK PATH, A FEEDBACK IMPEDANCE ELEMENT CONNECTED IN SAID FEEDBACK PATH AND AN INPUT IMPEDANCE CONNECTED IN CIRCUIT WITH SAID AMPLIFIER AT THE INPUT THEREOF, THE IMPEDANCES OF SAID ELEMENTS HAVING A PREDETERMINED RATIO, A PAIR OF COMPENSATING DIODES CONNECTED IN INVERSE PARALLEL RELATIONSHIP IN THE FEEDBACK PATH OF SAID AMPLIFIER, A SIGN REVERSING MEANS CONNECTED IN CIRCUIT WITH THE OUTPUT LEAD OF SAID AMPLIFIER, AND RECTIFYING MEANS CONNECTED IN CIRCUIT OUTSIDE OF THE FEEDBACK PATH OF THE AMPLIFIER AND WITH AT LEAST SAID SIGN REVERSING MEANS TO PROVIDE RECTIFICATION OF THE AMPLIFIED INPUT SIGNAL OF SAID AMPLIFIER, SAID COMPENSATING DIODES BLOCKING THE CURRENT IN THE FEEDBACK PATH OF SAID AMPLIFIER BELOW PREDETERMINED SIGNAL LEVELS SO THAT THE VOLTAGE ACROSS SAID RECTIFYING MEANS IS SUFFICIENT TO CAUSE CONDUCTION OF CURRENT THERETHROUGH AND SAID COMPENSATING DIODES AND SAID RECTIFYING MEANS HAVING ESSENTIALLY THE SAME FORWARD VOLTAGE DROP CHARACTERISTICS.
Claim 2
Dependent Claim
155 words
A SIGNAL CONVERTER COMPRISING AN AMPLIFIER INCLUDING A FEEDBACK PATH, A FEEDBACK IMPEDANCE ELEMENT CONNECTED IN SAID FEEDBACK PATH AND AN INPUT IMPEDANCE CONNECTED IN CIRCUIT WITH SAID AMPLIFIER AT THE INPUT THEREOF, THE IMPEDANCES OF SAID ELEMENTS HAVING A PREDETERMINED RATIO, A PAIR OF COMPENSATING DIODES CONNECTED IN INVERSE PARALLEL RELATIONSHIP IN THE FEEDBACK PATH OF SAID AMPLIFIER, A SIGN REVERSING MEANS CONNECTED IN CIRCUIT WITH THE OUTPUT LEAD OF SAID AMPLIFIER, AND RECTIFYING MEANS CONNECTED IN CIRCUIT OUTSIDE OF THE FEEDBACK PATH OF THE AMPLIFIER AND WITH AT LEAST SAID SIGN REVERSING MEANS TO PROVIDE RECTIFICATION OF THE AMPLIFIED INPUT SIGNAL OF SAID AMPLIFIER, SAID COMPENSATING DIODES BLOCKING THE CURRENT IN THE FEEDBACK PATH OF SAID AMPLIFIER BELOW PREDETERMINED SIGNAL LEVELS SO THAT THE VOLTAGE ACROSS SAID RECTIFYING MEANS IS SUFFICIENT TO CAUSE CONDUCTION OF CURRENT THERETHROUGH AND SAID COMPENSATING DIODES AND SAID RECTIFYING MEANS HAVING ESSENTIALLY THE SAME FORWARD VOLTAGE DROP CHARACTERISTICS.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |