Patent US3312911A successfully refreshed from Google Patents.
US3312911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunnel diode relaxation oscillator
Assignee: US Philips Corp
•
Filing: 1964-01-07
•
Granted: 1967-04-04
•
Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Boer Eeltje De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:05
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A RELAXATION OSCILLATOR CIRCUIT COMPRISING FIRST AND SECOND NEGATIVE RESISTANCE DIODES, INDUCTANCE MEANS, MEANS CONNECTING SAID FIRST AND SECOND DIODES AND SAID INDUCTANCE MEANS IN SERIES CIRCUIT RELATIONSHIP, MEANS FOR APPLYING A VOLTAGE TO BOTH OF SAID DIODES AT A LEVEL TO BIAS EACH OF SAID DIODES INTO THE NEGATIVE RESISTANCE REGION OF ITS CURRENT-VOLTAGE CHARACTERISTIC, MEANS FOR SUPPLYING A CONTROL CURRENT TO SAID SERIES CIRCUIT AT A JUNCTION SUCH THAT SAID DIODES ARE EFFECTIVELY CONNECTED IN PARALLEL FOR SAID CURRENT, AND OUTPUT MEANS COUPLED TO SAID OSCILLATOR CIRCUIT SO AS TO SUPPLY TO A LOAD A RELAXATION OSCILLATION SIGNAL OF A POLARITY DETERMINED BY SAID CONTROL CURRENT.
Claim 2
Dependent Claim
108 words
A RELAXATION OSCILLATOR CIRCUIT COMPRISING FIRST AND SECOND NEGATIVE RESISTANCE DIODES, INDUCTANCE MEANS, MEANS CONNECTING SAID FIRST AND SECOND DIODES AND SAID INDUCTANCE MEANS IN SERIES CIRCUIT RELATIONSHIP, MEANS FOR APPLYING A VOLTAGE TO BOTH OF SAID DIODES AT A LEVEL TO BIAS EACH OF SAID DIODES INTO THE NEGATIVE RESISTANCE REGION OF ITS CURRENT-VOLTAGE CHARACTERISTIC, MEANS FOR SUPPLYING A CONTROL CURRENT TO SAID SERIES CIRCUIT AT A JUNCTION SUCH THAT SAID DIODES ARE EFFECTIVELY CONNECTED IN PARALLEL FOR SAID CURRENT, AND OUTPUT MEANS COUPLED TO SAID OSCILLATOR CIRCUIT SO AS TO SUPPLY TO A LOAD A RELAXATION OSCILLATION SIGNAL OF A POLARITY DETERMINED BY SAID CONTROL CURRENT.
References Cited (Backward Citations)
US3127574A
Cited
US3207914A
Cited
US3158841A
Cited
US3056048A
Cited
US3087123A
Cited
US3054071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |