US3555458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side band generator
Assignee: Thales SA
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Filing: 1967-11-13
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Granted: 1971-01-12
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Expires: 1987-11-13
Abstract
Abstract A SIDE BAND GENERATOR PROVIDING TWO PAIRS OF SIDE BANDS IN QUADRATURE AND COMPRISING TWO PHASE SHIFTERS WHICH ARE VARIABLE AND CONTROLLED IN A DIGITAL MANNER, AND WHICH PHASE SHIFT, SIMULTANEOUSLY AND IN OPPOSITE DIRECTIONS, EACH HALF OF THE ENERGY OF THE HIGH FREQUENCY WAVE CARRIER, THE PHASE SHIFT REACHING 2$ AT THE END OF A PERIOD OF THE LOW FREQUENCY MODULATING WAVE.
Inventors
- 👤 Paul Fombonne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:02
CPC Classifications
H; H03; H03H; H03H17/00; H03H17/08; G; G01; G01S; G01S1/00; G01S1/02; H03B; H03B21/00; H03C; H03C1/00; H03C1/52; H03C1/60; H03H7/00; H03H7/18; H03H7/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |