Patent US3346814A successfully refreshed from Google Patents.
US3346814A
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Dual loop demodulator including a phase lock loop and an afc loop
Assignee: Raytheon Co
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Filing: 1964-07-29
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Granted: 1967-10-10
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore F Haggai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:07
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/24; H03D3/241; H03D3/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A DEMODULATOR SYSTEM HAVING A SOURCE OF SIGNALS COMPRISING MIXING MEANS COUPLED TO THE SOURCE OF SIGNALS, A PHASE DETECTOR COUPLED BETWEEN SAID MIXING MEANS AND AN OUTPUT TERMINAL, A FIRST LOOP COUPLED BETWEEN SAID OUTPUT TERMINAL AND SAID PHASE DETECTOR AND INCLUDING A FIRST VOLTAGE CONTROLLED OSCILLATOR, AND A SECOND LOOP COUPLED BETWEEN SAID OUTPUT TERMINAL AND SAID MIXING MEANS AND INCLUDING A SECOND VOLTAGE CONTROLLED OSCIALLATOR.
Claim 2
Dependent Claim
68 words
A DEMODULATOR SYSTEM HAVING A SOURCE OF SIGNALS COMPRISING MIXING MEANS COUPLED TO THE SOURCE OF SIGNALS, A PHASE DETECTOR COUPLED BETWEEN SAID MIXING MEANS AND AN OUTPUT TERMINAL, A FIRST LOOP COUPLED BETWEEN SAID OUTPUT TERMINAL AND SAID PHASE DETECTOR AND INCLUDING A FIRST VOLTAGE CONTROLLED OSCILLATOR, AND A SECOND LOOP COUPLED BETWEEN SAID OUTPUT TERMINAL AND SAID MIXING MEANS AND INCLUDING A SECOND VOLTAGE CONTROLLED OSCIALLATOR.
References Cited (Backward Citations)
US2509212A
Cited
US2662181A
Cited
GB858888A
Cited
US3209271A
Cited
US3163823A
Cited
US3212023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |