US3242435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-band discriminators utilizing internal feedback
Assignee: Thales SA
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Filing: 1963-07-30
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Granted: 1966-03-22
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Malnar Leon
- 👤 Dardenne Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PHASE DISCRIMINATOR FOR EXTRACTING THE INFORMATION FROM A FREQUENCY MODULATED SIGNAL, THE CARRIER FREQUENCY OF WHICH IS VARIABLE, COMPRISING IN COMBINATION: A SYNCHRONOUS DETECTOR HAVING FIRST AND SECOND INPUT CHANNELS AND AN OUTPUT; MEANS FOR APPLYING TO SAID CHANNELS THE WAVE CONTAINING THE INFORMATION; A FIXED DELAY LINE IN SAID FIRST CHANNEL; IN SAID SECOND CHANNEL A CONTROLLABLE PHASE SHIFTER FOR PHASE SHIFTING SAID WAVE BY AN ANGLE P$/2, P BEING A CONTROLLABLE INTEGER; AND CONTROL MEANS CONNECTED TO SAID OUTPUT FOR CONTROLLING THE VALUE OF P.
Claim 2
Dependent Claim
88 words
A PHASE DISCRIMINATOR FOR EXTRACTING THE INFORMATION FROM A FREQUENCY MODULATED SIGNAL, THE CARRIER FREQUENCY OF WHICH IS VARIABLE, COMPRISING IN COMBINATION: A SYNCHRONOUS DETECTOR HAVING FIRST AND SECOND INPUT CHANNELS AND AN OUTPUT; MEANS FOR APPLYING TO SAID CHANNELS THE WAVE CONTAINING THE INFORMATION; A FIXED DELAY LINE IN SAID FIRST CHANNEL; IN SAID SECOND CHANNEL A CONTROLLABLE PHASE SHIFTER FOR PHASE SHIFTING SAID WAVE BY AN ANGLE P$/2, P BEING A CONTROLLABLE INTEGER; AND CONTROL MEANS CONNECTED TO SAID OUTPUT FOR CONTROLLING THE VALUE OF P.
References Cited (Backward Citations)
US2836712A
Cited
US2976363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |