US3178658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage-controlled oscillator
Assignee: Bendix Corp
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Filing: 1961-02-28
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Granted: 1965-04-13
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Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 W S Henrion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:13
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823; G; G08; G08C; G08C15/00; G08C15/02; G08C15/04; H03C; H03C3/00; H03K7/00; H03K7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A VOLTAGE-CONTROLLED TRANSISTOR MULTIVIBRATOR COMPRISING: A FIRST TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; A SECOND TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; A FIRST FREQUENCEY-DETERMINING NETWORK COUPLING THE BASE OF SAID FIRST TRANSISTOR TO THE COLLECTOR OF SAID SECOND TRANSISTOR; A SECOND FREQUENCY-DETERMINING NETWORK COUPLING THE BASE ELECTRODE OF SAID SECOND TRANSISTOR TO THE COLLECTOR OF SAID FIRST TRANSISTOR; A SOURCE OF VOLTAGE FOR POWERING SAID MULTIVIBRATOR; MEANS FOR DERIVING OPERATING POTENTIALS FOR SAID TRNASISTORS FROM SAID VOLTAGE SOURCE; SAID LAST MEANS INCLUDING AN ADJUSTABLE RESISTANCE ELEMENT CONNECTED TO SAID VOLTAGE SUPPLY TO VARY PROPORTIONALLY THE POTENTIAL OF THE POINTS FROM WHICH THE BASE AND COLLECTOR VOLTAGES ARE DERIVED; AN INPUT TERMINAL FOR APPLYING A CONTROL VOLTAGE TO SAID MULTIVIBRATOR TO VARY THE FREQUENCY THEREOF; AND MEANS PARTIALLY BYPASSING SAID ADJUSTABLE RESISTANCE ELEMENT BETWEEN SAID VOLTAGE SUPPLY AND THE COLLECTOR ELECTRODES OF SAID TRANSISTORS WHEREBY THE POTENTIAL OF SAID COLLECTOR ELECTRODES VARIES AT A RATE DISPROPORTIONAL TO THE POTENTIAL OF THE BASE ELECTRODE OF THE TRANSISTORS.
Claim 2
Dependent Claim
167 words
A VOLTAGE-CONTROLLED TRANSISTOR MULTIVIBRATOR COMPRISING: A FIRST TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; A SECOND TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; A FIRST FREQUENCEY-DETERMINING NETWORK COUPLING THE BASE OF SAID FIRST TRANSISTOR TO THE COLLECTOR OF SAID SECOND TRANSISTOR; A SECOND FREQUENCY-DETERMINING NETWORK COUPLING THE BASE ELECTRODE OF SAID SECOND TRANSISTOR TO THE COLLECTOR OF SAID FIRST TRANSISTOR; A SOURCE OF VOLTAGE FOR POWERING SAID MULTIVIBRATOR; MEANS FOR DERIVING OPERATING POTENTIALS FOR SAID TRNASISTORS FROM SAID VOLTAGE SOURCE; SAID LAST MEANS INCLUDING AN ADJUSTABLE RESISTANCE ELEMENT CONNECTED TO SAID VOLTAGE SUPPLY TO VARY PROPORTIONALLY THE POTENTIAL OF THE POINTS FROM WHICH THE BASE AND COLLECTOR VOLTAGES ARE DERIVED; AN INPUT TERMINAL FOR APPLYING A CONTROL VOLTAGE TO SAID MULTIVIBRATOR TO VARY THE FREQUENCY THEREOF; AND MEANS PARTIALLY BYPASSING SAID ADJUSTABLE RESISTANCE ELEMENT BETWEEN SAID VOLTAGE SUPPLY AND THE COLLECTOR ELECTRODES OF SAID TRANSISTORS WHEREBY THE POTENTIAL OF SAID COLLECTOR ELECTRODES VARIES AT A RATE DISPROPORTIONAL TO THE POTENTIAL OF THE BASE ELECTRODE OF THE TRANSISTORS.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |