Patent US688182A successfully refreshed from Google Patents.
Patent US3076141A successfully refreshed from Google Patents.
US3076141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier-eliminated single-side-band radio receiver
Assignee: CROSBY TELETRONICS CORP
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Filing: 1960-04-27
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Granted: 1963-01-29
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Irwin D Baumel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/30; H04B1/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A RECEIVER SYSTEM FOR A SINGLE SIDE-BAND CARRIERELIMINATED SPEECH SIGNAL, SAID SYSTEM COMPRISING A RECEIVER WHICH INCLUDES A LOCAL OSCILLATOR FOR CARRIER REINSERTION, MEANS TO INTEGRATE WITH APPROPRIATE TIME CONSTANT A PART OF THE AUDIO OUTPUT OF THE RECEIVER TO OBTAIN AN INDICATION PROPORTIONAL TO THE AVERAGE ENERGY FREQUENCY, MEANS TO COMPARE THE RESULTING AVERAGE ENERGY FREQUENCY OF THE AUDIO OUTPUT WITH A NORMAL AVERAGE ENERGY FREQUENCY, MEANS RESPONSIVE TO ANY DIFFERENCE IN AVERAGE ENERGY FREQUENCY TO CHANGE THE FREQUENCY OF THE LOCAL OSCILLATOR IN THAT DIRECTION WHICH HELPS RESTORE THE AVERAGE ENERGY FREQUENCY OF THE AUDIO OUTPUT TO THE NORMAL AVERAGE ENERGY FREQUENCY, AND MEANS TO PREVENT THE MAKING OF A SPURIOUS FREQUENCY CORRECTION WHEN NO SPEECH IS BEING RECEIVED.
Claim 2
Dependent Claim
121 words
A RECEIVER SYSTEM FOR A SINGLE SIDE-BAND CARRIERELIMINATED SPEECH SIGNAL, SAID SYSTEM COMPRISING A RECEIVER WHICH INCLUDES A LOCAL OSCILLATOR FOR CARRIER REINSERTION, MEANS TO INTEGRATE WITH APPROPRIATE TIME CONSTANT A PART OF THE AUDIO OUTPUT OF THE RECEIVER TO OBTAIN AN INDICATION PROPORTIONAL TO THE AVERAGE ENERGY FREQUENCY, MEANS TO COMPARE THE RESULTING AVERAGE ENERGY FREQUENCY OF THE AUDIO OUTPUT WITH A NORMAL AVERAGE ENERGY FREQUENCY, MEANS RESPONSIVE TO ANY DIFFERENCE IN AVERAGE ENERGY FREQUENCY TO CHANGE THE FREQUENCY OF THE LOCAL OSCILLATOR IN THAT DIRECTION WHICH HELPS RESTORE THE AVERAGE ENERGY FREQUENCY OF THE AUDIO OUTPUT TO THE NORMAL AVERAGE ENERGY FREQUENCY, AND MEANS TO PREVENT THE MAKING OF A SPURIOUS FREQUENCY CORRECTION WHEN NO SPEECH IS BEING RECEIVED.
References Cited (Backward Citations)
US2836712A
Cited
US2938114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |