US3202928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal transmission apparatus with means for suppressing harmonics and intermodulating products
Assignee: International Standard Electric Corp
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Filing: 1962-03-05
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Granted: 1965-08-24
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Prior Hector Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:01
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/32; H03F1/3223; H03F1/33; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/06; H04B3/14; H04B3/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
SIGNAL TRANSMISSION APPARATUS FOR MINIMIZING THE LEVEL OF HARMONICS AND INTERMODULATION PRODUCTS IN TRANSMITTED INCOMING SIGNALS COMPRISING, INPUT MEANS FOR DERIVING A PLURALITY FO IN-PHASE SIGNAL COMPONENTS FROM SAID INCOMING SIGNALS, SUBSTANTIALLY IDENTICAL MEANS FOR AMPLIFYING RESPECTIVE ONES OF SAID SIGNAL COMPONENTS, MEANS FOR ATTENUATING AT LEAST ONE OF SAID AMPLIFIED SIGNAL COMPONENTS, MEANS FOR THEREAFTER REVERSING THE PHASE OF AT LEAST ONE OF THE SAID AMPLIFIED AND ATTENUATED SIGNAL COMPONENTS, AND MEANS FOR COMBINING THE AMPLIFIED PHASE-REVERSED AND ATTENUATED SIGNAL COMPONENTS WITH THE AMPLIFIED NON-PHASE-SHIFTED SIGNAL COMPONENTS TO CANCEL THE INTERMODULATION AND HARMONIC VOLTAGES OF SAID SIGNAL COMPONENTS AND TO PASS THE FUNDAMENTAL SIGNAL VOLTAGES OF SAID INCOMING SIGNALS.
Claim 2
Dependent Claim
110 words
SIGNAL TRANSMISSION APPARATUS FOR MINIMIZING THE LEVEL OF HARMONICS AND INTERMODULATION PRODUCTS IN TRANSMITTED INCOMING SIGNALS COMPRISING, INPUT MEANS FOR DERIVING A PLURALITY FO IN-PHASE SIGNAL COMPONENTS FROM SAID INCOMING SIGNALS, SUBSTANTIALLY IDENTICAL MEANS FOR AMPLIFYING RESPECTIVE ONES OF SAID SIGNAL COMPONENTS, MEANS FOR ATTENUATING AT LEAST ONE OF SAID AMPLIFIED SIGNAL COMPONENTS, MEANS FOR THEREAFTER REVERSING THE PHASE OF AT LEAST ONE OF THE SAID AMPLIFIED AND ATTENUATED SIGNAL COMPONENTS, AND MEANS FOR COMBINING THE AMPLIFIED PHASE-REVERSED AND ATTENUATED SIGNAL COMPONENTS WITH THE AMPLIFIED NON-PHASE-SHIFTED SIGNAL COMPONENTS TO CANCEL THE INTERMODULATION AND HARMONIC VOLTAGES OF SAID SIGNAL COMPONENTS AND TO PASS THE FUNDAMENTAL SIGNAL VOLTAGES OF SAID INCOMING SIGNALS.
References Cited (Backward Citations)
US2236134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |