US3084329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise suppression technique for radio circuits
Assignee: Raytheon Co
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Filing: 1959-08-06
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Granted: 1963-04-02
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Expires: 1979-08-06
Abstract
No abstract record available.
Inventors
- 👤 Clay Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:43
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
IN A COMMUNICATION SYSTEM, THE COMBINATION OF A CARRIER FREQUENCY OSCILLATOR, A BALANCED MODULATOR COUPLED TO SAID CARRIER OSCILLATOR AND TO A SOURCE OF MODULATION SIGNALS, MEANS CONNECTED TO SAID OSCILLATOR AND MODULATOR AND OPERATIVE TO COMBINE THE OUTPUT OF SAID MODULATOR IN QUADRATURE WITH THE OUTPUT OF SAID OSCILLATOR, WHEREBY SIDEBANDS OF OPPOSITE POLARITY ARE PRODUCED, DETECTOR MEANS FOR DETECTING SAID SIDEBANDS SEPARATELY, AND MEANS FOR OBTAINING THE ALGEBRAIC DIFFERENCE OF THE DETECTED MODULATION ON THE RESPECTIVE SIDEBANDS.
References Cited (Backward Citations)
US2116814A
Cited
US2101529A
Cited
US2104635A
Cited
US2175270A
Cited
US2248462A
Cited
US2957953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |