US3168656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line circuit having termination impedance which includes emitter junction of transistor
Assignee: Tektronix Inc
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Filing: 1962-06-18
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Granted: 1965-02-02
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 John R Kobbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:56
CPC Classifications
A; A21; A21C; A21C5/00; A21C5/02; A21C5/06; G; G09; G09F; G09F11/00; G09F11/30; G09F11/34; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/708; H03; H03F; H03F1/00; H03F1/56; H03F3/00; H03F3/34; H03F3/343; H03F3/68; H03H; H03H11/00; H03H11/02; H03H11/26; H03H11/265; H03H11/28; H03H2/00; H03H2/005; H03H2/008; H03K; H03K17/00; H03K17/04; H03K17/51; H03K17/56; H03K17/60; H03K19/00; H03K19/0175; H03K19/018; H03K19/01806; H03K5/00; H03K5/01; H03K5/04; H03K5/06; H04; H04B; H04B3/00; H04B3/02; H04B3/44; H04J; H04J3/00; H04J3/02; H04J3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A TRANSMISSION LINE CIRCUIT FOR TRANSMITTING ELECTRICAL SIGNALS COMPRISING: A TRANSMISSION LINE HAVING A SUBSTANTIALLY UNIFORM CHARACTERISTIC IMPEDANCE; TERMINATION MEANS FOR AN END OF SAID LINE PROVIDING A TERMINATING IMPEDANCE SUBSTANTIALLY EQUAL TO SAID CHARACTERISTIC IMPEDANCE SO THAT SIGNAL CURRENT FLOWS THROUGH SAID TERMINATING IMPEDANCE, SAID TERMINATION MEANS INCLUDING AT LEAST ONE TRANSISTOR HAVING IT EMITTER JUNCTION FORMING AT LEAST PART OF SAID TERMINATING IMPEDANCE; MEANS CONNECTING THE EMITTER AND BASE OF SAID TRANSISTOR BETWEEN SAID END OF SAID LINE AND GROUND SO THAT SUBSTANTIALLY ALL OF SAID SIGNAL CURRENT FLOWS THROUGH SAID EMITTER JUNCTION; AND A MEANS CONNECTING THE COLLECTOR OF SAID TRANSISTOR TO AN OUTPUT TERMINAL.
Claim 2
Dependent Claim
108 words
A TRANSMISSION LINE CIRCUIT FOR TRANSMITTING ELECTRICAL SIGNALS COMPRISING: A TRANSMISSION LINE HAVING A SUBSTANTIALLY UNIFORM CHARACTERISTIC IMPEDANCE; TERMINATION MEANS FOR AN END OF SAID LINE PROVIDING A TERMINATING IMPEDANCE SUBSTANTIALLY EQUAL TO SAID CHARACTERISTIC IMPEDANCE SO THAT SIGNAL CURRENT FLOWS THROUGH SAID TERMINATING IMPEDANCE, SAID TERMINATION MEANS INCLUDING AT LEAST ONE TRANSISTOR HAVING IT EMITTER JUNCTION FORMING AT LEAST PART OF SAID TERMINATING IMPEDANCE; MEANS CONNECTING THE EMITTER AND BASE OF SAID TRANSISTOR BETWEEN SAID END OF SAID LINE AND GROUND SO THAT SUBSTANTIALLY ALL OF SAID SIGNAL CURRENT FLOWS THROUGH SAID EMITTER JUNCTION; AND A MEANS CONNECTING THE COLLECTOR OF SAID TRANSISTOR TO AN OUTPUT TERMINAL.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |