Patent EP0133895A1 successfully refreshed from Google Patents.
Patent US2219751A successfully refreshed from Google Patents.
US3221273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single sideband hall modulator
Assignee: Verizon Laboratories Inc
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Filing: 1962-10-01
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Granted: 1965-11-30
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Donald C Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:36
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/52; H03C1/60; H03C1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A HALL MODULATOR COMPRISING (A) A MAGNETIC CORE HAVING FIRST AND SECOND LEGS, SAID FIRST AND SECOND LEGS HAVING FIRST AND SECOND GAPS FIRST AND SECOND LEGS HAVING FIRST AND SECOND GAPS (B) A PLURALITY OF WINDINGS WOUND ON SAID MAGNETIC CORE, (C) MEANS FOR APPLYING MODULATING SIGNALS TO SAID WINDINGS TO PRODUCE A FIRST MAGNETIC FIELD ACROSS SAID FIRST GAP AND A SECOND MAGNETIC FIELD ACROSS SAID SECOND GAP, SAID MAGNETIC FIELDS HAVING COMPONENTS PRODUCED BY SAID MODULATING SIGNALS OF THE SAME FREQUENCY AND DISPLACED IN TIME PHASE BY 90*, (D) FIRST AND SECOND HALL PLATES POSITIONED IN SAID FIRST AND SECOND GAPS, RESPECTIVELY, EACH OF SAID HALL PLATES HAVING A PAIR OF INPUT ELECTRODES AND A PAIR OF OUTPUT ELECTRODES, AND (E) MEANS FOR APPLYING FIRST AND SECOND CARRIER SIGNALS TO THE INPUT ELECTRODES OF SAID FIRST AND SECOND HALL PLATES, RESPECTIVELY, SAID FIRST AND SECOND CARRIER SIGNALS HAVING THE SAME FREQUENCY AND BEING DISPLACED IN TIME PHASE BY 90*C, THE VOLTAGE PRODUCED ACROSS THE OUTPUT ELECTRODES OF SAID FIRST AND SECOND HALL PLATES HAVING FREQUENCY COMPONENTS DIFFERING FROM THE CARRIER FREQUENCY BY THE MODULATING FREQUENCY.
Claim 2
Dependent Claim
188 words
A HALL MODULATOR COMPRISING (A) A MAGNETIC CORE HAVING FIRST AND SECOND LEGS, SAID FIRST AND SECOND LEGS HAVING FIRST AND SECOND GAPS FIRST AND SECOND LEGS HAVING FIRST AND SECOND GAPS (B) A PLURALITY OF WINDINGS WOUND ON SAID MAGNETIC CORE, (C) MEANS FOR APPLYING MODULATING SIGNALS TO SAID WINDINGS TO PRODUCE A FIRST MAGNETIC FIELD ACROSS SAID FIRST GAP AND A SECOND MAGNETIC FIELD ACROSS SAID SECOND GAP, SAID MAGNETIC FIELDS HAVING COMPONENTS PRODUCED BY SAID MODULATING SIGNALS OF THE SAME FREQUENCY AND DISPLACED IN TIME PHASE BY 90*, (D) FIRST AND SECOND HALL PLATES POSITIONED IN SAID FIRST AND SECOND GAPS, RESPECTIVELY, EACH OF SAID HALL PLATES HAVING A PAIR OF INPUT ELECTRODES AND A PAIR OF OUTPUT ELECTRODES, AND (E) MEANS FOR APPLYING FIRST AND SECOND CARRIER SIGNALS TO THE INPUT ELECTRODES OF SAID FIRST AND SECOND HALL PLATES, RESPECTIVELY, SAID FIRST AND SECOND CARRIER SIGNALS HAVING THE SAME FREQUENCY AND BEING DISPLACED IN TIME PHASE BY 90*C, THE VOLTAGE PRODUCED ACROSS THE OUTPUT ELECTRODES OF SAID FIRST AND SECOND HALL PLATES HAVING FREQUENCY COMPONENTS DIFFERING FROM THE CARRIER FREQUENCY BY THE MODULATING FREQUENCY.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |