Patent US3303429A successfully refreshed from Google Patents.
US3303429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gain regulation circuit employing a hall multiplier as a variolosser
Assignee: Automatic Electric Laboratories Inc
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Filing: 1963-09-03
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Granted: 1967-02-07
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Neale A Zellmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:24
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A VARIOLOSSER CIRCUIT USING A HALL EFFECT DEVICE COMPRISING A CRYSTAL; INPUT MEANS FOR PASSING AN INPUT SIGNAL CONTAINING AN A.-C. PILOT SIGNAL THROUGH SAID CRYSTAL; A COIL FOR APPLYING A MAGNETIC FIELD TO SAID CRYSTAL PERPENDICULAR TO THE PATH OF THE CURRENT OF SAID INPUT SIGNAL THROUGH SAID CRYSTAL, THE STRENGTH OF WHICH FIEDL IS PORPORTIONAL TO THE CURRENT THROUGH SAID COIL; INPUT MEANS FOR PASSING A CONTROL CURRENT THROUGH SAID COIL; MEANS MAINTAINING THE AMPLITUDE OF SAID CONTROL CURRENT PROPORTIONAL TO CHANGES IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL AND OF A POLARITY WHICH CAUSES THE HALL OUTPUT VOLTAGE OF SAID CRYSTAL TO CHANGE IN THE DIRECTION OPPOSITE FROM THAT OF SAID CHANGE IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL; AND OUTPUT MEANS FOR OBTAINING SAID HALL OUTPUT VOLTAGE OF SAID CRYSTAL, SAID OUTPUT VOLTAGE BEING RELATIVELY CONSTANT BECAUSE OF THE COMPENSATING EFFECTS BETWEEN THE CHANGES IN AMPLITUDE OF SAID CONTROL CURRENT AND THE CHANGES IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL.
Claim 2
Dependent Claim
164 words
A VARIOLOSSER CIRCUIT USING A HALL EFFECT DEVICE COMPRISING A CRYSTAL; INPUT MEANS FOR PASSING AN INPUT SIGNAL CONTAINING AN A.-C. PILOT SIGNAL THROUGH SAID CRYSTAL; A COIL FOR APPLYING A MAGNETIC FIELD TO SAID CRYSTAL PERPENDICULAR TO THE PATH OF THE CURRENT OF SAID INPUT SIGNAL THROUGH SAID CRYSTAL, THE STRENGTH OF WHICH FIEDL IS PORPORTIONAL TO THE CURRENT THROUGH SAID COIL; INPUT MEANS FOR PASSING A CONTROL CURRENT THROUGH SAID COIL; MEANS MAINTAINING THE AMPLITUDE OF SAID CONTROL CURRENT PROPORTIONAL TO CHANGES IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL AND OF A POLARITY WHICH CAUSES THE HALL OUTPUT VOLTAGE OF SAID CRYSTAL TO CHANGE IN THE DIRECTION OPPOSITE FROM THAT OF SAID CHANGE IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL; AND OUTPUT MEANS FOR OBTAINING SAID HALL OUTPUT VOLTAGE OF SAID CRYSTAL, SAID OUTPUT VOLTAGE BEING RELATIVELY CONSTANT BECAUSE OF THE COMPENSATING EFFECTS BETWEEN THE CHANGES IN AMPLITUDE OF SAID CONTROL CURRENT AND THE CHANGES IN AMPLITUDE OF SAID A.-C. PILOT SIGNAL.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |