US3195059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demodulator system for angularly modulated signals having improved noise immunity
Assignee: TDK Micronas GmbH
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Filing: 1960-07-08
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Granted: 1965-07-13
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Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Robert T Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:49
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/24; H03D3/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A DEMODULATOR SYSTEM FOR ANGULARLY MODULATED SIGNALS COMPRISING: A SOURCE OF ANGULARLY MODULATED SIGNALS INCLUDING A CARRIER SIGNAL ANGULARLY MODULATED BY BOTH BASEBAND AND RANDOM NOISE, SAID BASEBAND FREQUENCY DEVIATING SAID CARRIER SIGNAL A LARGE AMOUNT TO PROVIDE A RELATIVELY LARGE NOISE IMMUNITY AND A GIVEN THRESHOLD LEVEL FOR SAID DEMODULATOR SYSTEM; MEANS COUPLED TO SAID SOURCE RESPONSIVE TO SAID MODULATED SIGNALS TO REMOVE THAT PORTION OF SAID ANGULAR MODULATION NOISE ABOVE THE FREQUENCY BAND OF SAID BASEBAND TO PROVIDE A THRESHOLD LEVEL FOR SAID DEMODULATOR SYSTEM LOWER THAN SAID GIVEN THRESHOLD LEVEL AND YET MAINTAIN SAID LARGE NOISE IMMUNITY FOR SAID DEMODULATOR SYSTEM DUE TO THELARGE AMOUNT OF FREQUENCY DEVIATION OF SAID CARRIER SIGNAL BY SAID BASEBAND; MEANS COUPLED TO SAID MEANS TO REMOVE TO RECOVER SAID BASEBAND.
Claim 2
Dependent Claim
129 words
A DEMODULATOR SYSTEM FOR ANGULARLY MODULATED SIGNALS COMPRISING: A SOURCE OF ANGULARLY MODULATED SIGNALS INCLUDING A CARRIER SIGNAL ANGULARLY MODULATED BY BOTH BASEBAND AND RANDOM NOISE, SAID BASEBAND FREQUENCY DEVIATING SAID CARRIER SIGNAL A LARGE AMOUNT TO PROVIDE A RELATIVELY LARGE NOISE IMMUNITY AND A GIVEN THRESHOLD LEVEL FOR SAID DEMODULATOR SYSTEM; MEANS COUPLED TO SAID SOURCE RESPONSIVE TO SAID MODULATED SIGNALS TO REMOVE THAT PORTION OF SAID ANGULAR MODULATION NOISE ABOVE THE FREQUENCY BAND OF SAID BASEBAND TO PROVIDE A THRESHOLD LEVEL FOR SAID DEMODULATOR SYSTEM LOWER THAN SAID GIVEN THRESHOLD LEVEL AND YET MAINTAIN SAID LARGE NOISE IMMUNITY FOR SAID DEMODULATOR SYSTEM DUE TO THELARGE AMOUNT OF FREQUENCY DEVIATION OF SAID CARRIER SIGNAL BY SAID BASEBAND; MEANS COUPLED TO SAID MEANS TO REMOVE TO RECOVER SAID BASEBAND.
References Cited (Backward Citations)
US2332540A
Cited
US2554391A
Cited
US2735983A
Cited
US2828414A
Cited
US2930892A
Cited
US2924706A
Cited
US2969459A
Cited
US3084327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |