US3110862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coherent carrier regenerator
Assignee: AT&T Inc
•
Filing: 1961-08-10
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Granted: 1963-11-12
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Norman E Chasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/18; H04L27/22; H04L27/227; H04L27/2271; H04L27/2272; H03; H03D; H03D1/00; H03D1/22; H03D1/24; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/58; H03K7/00; H04B; H04B1/00; H04B1/68; H04L27/20; H04L27/2032; H04L27/2035; H04L27/2275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
APPARATUS FOR GENERATING A COHERENT CARRIER FOR THE DEMODULATION OF SIGNAL INFORMATION EXHIBITING PREDETERMINED PHASE SHIFTS COMPRISING A SIGNAL RECEIVER, A LOCKED OSCILLATOR, MEANS FOR MAINTAINING SAID LOCKED OSCILLATOR IN PRECISE PHASE AND FREQUENCY WITH PREDETERMINED PARAMETERS ASSOCIATED WITH SAID SIGNAL INFORMATION, AND MEANS INCLUDING MEANS FOR APPLYING SAID SIGNAL INFORMATION TO SAID OSCILLATOR, A NEGATIVE RESISTANCE ELEMENT AND A POSITIVE RESISTANCE ELEMENT SERIALLY CONNECTED ACROSS TWO OUTPUT TERMINALS OF SAID RECEIVER, MEANS FOR SELECTIVELY ALTERING THE CIRCUIT RESISTANCE OF ONE OF SAID RESISTANCE ELEMENTS IN RESPONSE TO A CONTROL SIGNAL THEREBY TO SHIFT THE PHASE OF SAID SIGNAL INFORMATION SELECTIVELY FROM A FIRST PREDETERMINED PHASE TO SAID PHASE OF SAID LOCKED
Claim 2
Dependent Claim
112 words
APPARATUS FOR GENERATING A COHERENT CARRIER FOR THE DEMODULATION OF SIGNAL INFORMATION EXHIBITING PREDETERMINED PHASE SHIFTS COMPRISING A SIGNAL RECEIVER, A LOCKED OSCILLATOR, MEANS FOR MAINTAINING SAID LOCKED OSCILLATOR IN PRECISE PHASE AND FREQUENCY WITH PREDETERMINED PARAMETERS ASSOCIATED WITH SAID SIGNAL INFORMATION, AND MEANS INCLUDING MEANS FOR APPLYING SAID SIGNAL INFORMATION TO SAID OSCILLATOR, A NEGATIVE RESISTANCE ELEMENT AND A POSITIVE RESISTANCE ELEMENT SERIALLY CONNECTED ACROSS TWO OUTPUT TERMINALS OF SAID RECEIVER, MEANS FOR SELECTIVELY ALTERING THE CIRCUIT RESISTANCE OF ONE OF SAID RESISTANCE ELEMENTS IN RESPONSE TO A CONTROL SIGNAL THEREBY TO SHIFT THE PHASE OF SAID SIGNAL INFORMATION SELECTIVELY FROM A FIRST PREDETERMINED PHASE TO SAID PHASE OF SAID LOCKED
References Cited (Backward Citations)
GB413383A
Cited
US2979611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |