Patent US3244991A successfully refreshed from Google Patents.
US3244991A
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Demodulator for fm signals utilizing pulse forming circuitry
Assignee: Consolidated Electrodynamics Corp
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Filing: 1962-12-07
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Granted: 1966-04-05
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Victor H Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:54
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A DEMODULATOR FOR FREQUENCY MODULATED SIGNALS COMPRISING MEANS FOR SQUARING THE MODULATED SIGNAL, MEANS FOR SPLITTING THE SQUARED SIGNAL INTO TWO SQUARED SIGNALS OF OPPOSITE PHASE, MEANS FOR DERIVING PULSES AT THE LEADING EDGES OF THE POSITIVE-GOING PORTIONS OF EACH OF SAID TWO SIGNALS TO OPPOSITE PHASE, MEANS FOR GENERATING TWO GROUPS OF PULSES OF CONSTANT AREA IN RESPONSE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |