US3143715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance matched hybrid network
Assignee: International Standard Electric Corp
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Filing: 1962-05-11
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Granted: 1964-08-04
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Expires: 1982-05-11
Abstract
No abstract record available.
Inventors
- 👤 Martens Jean Victor
- 👤 Fettweis Alfred Leo Maria
- 👤 Daems Karolus Ludovicus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:36
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54; H04B1/58; H04B1/581
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
IN AN IMPEDANCE MATCHING NETWORK INCLUDING HYBRID CIRCUIT MEANS COMPRISING FIRST, SECOND, AND THIRD TERMINAL PAIRS WITH SUBSTANTIALLY INFINITE LOSS BETWEEN SAID FIRST AND SAID SECOND TERMINAL PAIRS, A FIRST TERMINATING IMPEDANCE CONNECTED ACROSS SAID FIRST TERMINAL PAIR, A SECOND TERMINATING IMPEDANCE CONNECTED ACROSS SAID SECOND TERMINAL PAIR, A THIRD TERMINATING IMPEDANCE CONNECTED ACROSS SAID THIRD TERMINAL PAIR, AND AT LEAST ONE COMPENSATING RESISTOR ASSOCIATED WITH AT LEAST ONE OF SAID TERMINAL PAIRS FOR CAUSING THE IMPEDANCE OF SAID NETWORK AT SAID THIRD PAIR TO MATCH SAID THIRD TERMINATING IMPEDANCE WHEN SAID FIRST TERMINATING IMPEDANCE HAS A CERTAIN VALUE THAT MATCHES THE IMPEDANCE OF SAID NETWORK AT SAID FIRST TERMINAL PAIR WHILE SAID SECOND TERMINATING IMPEDANCE HAS A PREDETERMINED VALUE THAT DOES NOT MATCH THE IMPEDANCE OF SAID NETWORK AT SAID SECOND TERMINAL PAIR AND WHEN SAID FIRST TERMINATING IMPEDANCE HAS A PREDETERMINED VALUE THAT DOES NOT MATCH THE IMPEDANCE OF SAID NETWORK AT SAID FIRST TERMINAL PAIR WHILE SAID SECOND TERMINATING IMPEDANCE HAS A CERTAIN VALUE THAT DOES MATCH THE IMPEDANCE OF SAID NETWORK AT SAID SECOND TERMINAL PAIR WHEREBY TRANSMISSION LOSSES BETWEEN SAID FIRST AND SAID THIRD TERMINAL PAIRS AND BETWEEN SAID SECOND AND SAID THIRD TERMINAL PAIRS ARE MINIMIZED.
Claim 2
Dependent Claim
202 words
IN AN IMPEDANCE MATCHING NETWORK INCLUDING HYBRID CIRCUIT MEANS COMPRISING FIRST, SECOND, AND THIRD TERMINAL PAIRS WITH SUBSTANTIALLY INFINITE LOSS BETWEEN SAID FIRST AND SAID SECOND TERMINAL PAIRS, A FIRST TERMINATING IMPEDANCE CONNECTED ACROSS SAID FIRST TERMINAL PAIR, A SECOND TERMINATING IMPEDANCE CONNECTED ACROSS SAID SECOND TERMINAL PAIR, A THIRD TERMINATING IMPEDANCE CONNECTED ACROSS SAID THIRD TERMINAL PAIR, AND AT LEAST ONE COMPENSATING RESISTOR ASSOCIATED WITH AT LEAST ONE OF SAID TERMINAL PAIRS FOR CAUSING THE IMPEDANCE OF SAID NETWORK AT SAID THIRD PAIR TO MATCH SAID THIRD TERMINATING IMPEDANCE WHEN SAID FIRST TERMINATING IMPEDANCE HAS A CERTAIN VALUE THAT MATCHES THE IMPEDANCE OF SAID NETWORK AT SAID FIRST TERMINAL PAIR WHILE SAID SECOND TERMINATING IMPEDANCE HAS A PREDETERMINED VALUE THAT DOES NOT MATCH THE IMPEDANCE OF SAID NETWORK AT SAID SECOND TERMINAL PAIR AND WHEN SAID FIRST TERMINATING IMPEDANCE HAS A PREDETERMINED VALUE THAT DOES NOT MATCH THE IMPEDANCE OF SAID NETWORK AT SAID FIRST TERMINAL PAIR WHILE SAID SECOND TERMINATING IMPEDANCE HAS A CERTAIN VALUE THAT DOES MATCH THE IMPEDANCE OF SAID NETWORK AT SAID SECOND TERMINAL PAIR WHEREBY TRANSMISSION LOSSES BETWEEN SAID FIRST AND SAID THIRD TERMINAL PAIRS AND BETWEEN SAID SECOND AND SAID THIRD TERMINAL PAIRS ARE MINIMIZED.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |