US3174104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signal combining arrangements
Assignee: The General Electric Company PLC
•
Filing: 1961-09-28
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Granted: 1965-03-16
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Expires: 1981-09-28
Abstract
No abstract record available.
Inventors
- 👤 Easter Brian
- 👤 Sidwell John Mears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:38
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/182; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/084; H04B7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
AN ELECTRIC SIGNAL COMBINING ARRANGEMENT FOR USE IN A RADIO DIVERSITY RECEIVING SYSTEM TO COMBINE RADIO FREQUENCY SIGNALS RECEIVED SIMULTANEOUSLY ON TWO SPACED ANTENNAE COMPRISING SIGNAL TRANSFORMING MEANS WHICH IS ARRANGED TO BE SUPPLIED WITH THE TWO RADIO FREQUENCY INPUT SIGNALS AND WHICH IS ARRANGED TO SUPPLY TWO FURTHER RADIO FREQUENCY SIGNALS IN RESPONSE TO SAID INPUT SIGNALS, EACH FURTHER SIGNAL BEING DERIVED FROM BOTH SAID INPUT SIGNALS, FIRST ADJUSTABLE PHASING MEANS WHICH IS INCLUDED IN SAID TRANSFORMING MEANS AND WHICH IS ARRANGED TO AFFORD A CONTROL OVER THE RELATIVE MAGNITUDES OF SAID FURTHER SIGNALS, COMBINING MEANS WHICH IS ARRANGED TO TRANSFER SUBSTANTIALLY ALL THE ENERGY OF SAID FURTHER SIGNALS INTO A SINGLE RADIO FREQUENCY OUTPUT SIGNAL ONLY WHEN THOSE FURTHER SIGNALS ARE OF EQUAL MAGNITUDE AND HAVE A PREDETERMINED PHASE RELATIONSHIP, SECOND ADJUSTABLE PHASING MEANS TO ADJUST THE RELATIVE PHASE OF SAID FURTHER SIGNALS, AND AUTOMATIC CONTROL MEANS WHICH IS ARRANGED TO CONTROL AUTOMATICALLY THE ADJUSTMENT OF BOTH SAID PHASING MEANS SO THAT, DURING OPERATION, THE MAGNITUDES OF SAID FURTHER SIG-
Claim 2
Dependent Claim
172 words
AN ELECTRIC SIGNAL COMBINING ARRANGEMENT FOR USE IN A RADIO DIVERSITY RECEIVING SYSTEM TO COMBINE RADIO FREQUENCY SIGNALS RECEIVED SIMULTANEOUSLY ON TWO SPACED ANTENNAE COMPRISING SIGNAL TRANSFORMING MEANS WHICH IS ARRANGED TO BE SUPPLIED WITH THE TWO RADIO FREQUENCY INPUT SIGNALS AND WHICH IS ARRANGED TO SUPPLY TWO FURTHER RADIO FREQUENCY SIGNALS IN RESPONSE TO SAID INPUT SIGNALS, EACH FURTHER SIGNAL BEING DERIVED FROM BOTH SAID INPUT SIGNALS, FIRST ADJUSTABLE PHASING MEANS WHICH IS INCLUDED IN SAID TRANSFORMING MEANS AND WHICH IS ARRANGED TO AFFORD A CONTROL OVER THE RELATIVE MAGNITUDES OF SAID FURTHER SIGNALS, COMBINING MEANS WHICH IS ARRANGED TO TRANSFER SUBSTANTIALLY ALL THE ENERGY OF SAID FURTHER SIGNALS INTO A SINGLE RADIO FREQUENCY OUTPUT SIGNAL ONLY WHEN THOSE FURTHER SIGNALS ARE OF EQUAL MAGNITUDE AND HAVE A PREDETERMINED PHASE RELATIONSHIP, SECOND ADJUSTABLE PHASING MEANS TO ADJUST THE RELATIVE PHASE OF SAID FURTHER SIGNALS, AND AUTOMATIC CONTROL MEANS WHICH IS ARRANGED TO CONTROL AUTOMATICALLY THE ADJUSTMENT OF BOTH SAID PHASING MEANS SO THAT, DURING OPERATION, THE MAGNITUDES OF SAID FURTHER SIG-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |