US3253165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current steering logic circuit employing negative resistance devices in the output networks of the amplifying devices
Assignee: RCA Corp
•
Filing: 1963-12-23
•
Granted: 1966-05-24
•
Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Eldon C Cornish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:03
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/58; H03K19/00; H03K19/02; H03K19/08; H03K19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
THE COMBINATION COMPRISING: A PAIR OF AMPLIFYING DEVICES EACH HAVING INPUT AND OUTPUT ELECTRODES DEFINING A CURRENT CARRYING PATH, AND A CONTROL ELECTRODE; A CURRENT SOURCE CONNECTED IN CIRCUIT BETWEEN A POINT OF REFERENCE POTENTIAL AND THE INPUT ELECTRODE OF EACH OF SAID AMPLIFYING DEVICES; A PAIR OF TUNNEL DIODES, EACH TUNNEL DIODE BEING CONNECTED BETWEEN THE OUTPUT ELECTRODE OF A DIFFERENT AMPLIFYING DEVICE AND SAID POINT OF REFERENCE POTENTIAL, EACH TUNNEL DIODE HAVING A PEAK CURRENT WHICH IS LESS THAN THE CURRENT SUPPLIED BY SAID CURRENT SOURCE; FIRST AND SECOND BISTABLE DEVICES EACH BEING CONNECTED IN CIRCUIT BETWEEN THE CONTROL ELECTRODE OF A DIFFERENT AMPLIFYING DEVICE AND SAID POINT OF REFERENCE POTENTIAL; AND FEEDBACK MEANS CONNECTED BETWEEN THE OUTPUT ELECTRODE OF EACH AMPLIFYING DEVICE AND THE CONTROL ELECTRODE OF THE SAME SAID AMPLIFYING DEVICE.
Claim 2
Dependent Claim
135 words
THE COMBINATION COMPRISING: A PAIR OF AMPLIFYING DEVICES EACH HAVING INPUT AND OUTPUT ELECTRODES DEFINING A CURRENT CARRYING PATH, AND A CONTROL ELECTRODE; A CURRENT SOURCE CONNECTED IN CIRCUIT BETWEEN A POINT OF REFERENCE POTENTIAL AND THE INPUT ELECTRODE OF EACH OF SAID AMPLIFYING DEVICES; A PAIR OF TUNNEL DIODES, EACH TUNNEL DIODE BEING CONNECTED BETWEEN THE OUTPUT ELECTRODE OF A DIFFERENT AMPLIFYING DEVICE AND SAID POINT OF REFERENCE POTENTIAL, EACH TUNNEL DIODE HAVING A PEAK CURRENT WHICH IS LESS THAN THE CURRENT SUPPLIED BY SAID CURRENT SOURCE; FIRST AND SECOND BISTABLE DEVICES EACH BEING CONNECTED IN CIRCUIT BETWEEN THE CONTROL ELECTRODE OF A DIFFERENT AMPLIFYING DEVICE AND SAID POINT OF REFERENCE POTENTIAL; AND FEEDBACK MEANS CONNECTED BETWEEN THE OUTPUT ELECTRODE OF EACH AMPLIFYING DEVICE AND THE CONTROL ELECTRODE OF THE SAME SAID AMPLIFYING DEVICE.
References Cited (Backward Citations)
US3102209A
Cited
US3076105A
Cited
US3161781A
Cited
US3150273A
Cited
US3144565A
Cited
US3156833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |