US3210691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase control circuit for multivibrators
Assignee: International Business Machines Corp
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Filing: 1964-06-08
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Granted: 1965-10-05
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Sprott Charles Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
245 words
A SYNCHRONIZATION CIRCUIT FOR AN OSCILLATOR HAVING A FIRST ACTIVE ELEMENT WITH AN INPUT AND AN OUTPUT INTERCONNECTED TO A SECOND ACTIVE ELEMENT WITH AN INPUT AND AN OUTPUT TO FORM AN ASTABLE MULTIVIBRATOR, SAID ASTABLE MULTIVIBARTOR HAVING A FIRST CAPACITOR IN A TIME CONSTANT CIRCUIT BETWEEN THE OUTPUT OF SAID FIRST ACTIVE ELEMENT AND THE INPUT OF SAID SECOND ACTIVE ELEMENT FOR CONTROL OF CONDUCTION OF SAID SECOND ACTIVE ELEMENT BY THE CONDUCTION STATUS OF SAID FIRST ACTIVE ELEMENT, THE COMBINATION COMPRISING A CHARGE SUPPLY DEVIC E, MEANS ESTABLISHING A CONDUCTIVE CONNECTING BETWEEN SAID CAPACITOR AND SAID CHARGE SUPPLY DEVICE, SAID CONDUCTIVE CONNECTION COMPRISING CIRCUIT ELEMENTS ADAPTED AND CONNECTED IN SAID SYNCHRONIZING CIRCUITS TO BE PERMANENTLY CAPABLE OF CONDUCTING CURRENT IN ONE DIRECTION DURING EVERY OPERATING STATUS OF SAID SYCHRONIZING CIRCUIT AND INCLUDING AT LEAST ONE UNIDIRECTIONAL DEVICE TO ISOLATE THE CONDUCTIVE CONNECTION FROM SAID FIRST AND SAID SECOND ACTIVE ELEMENTS AND ALSO COMPRISING NORMALLY NON-CONDUCTIVE CIRCUIT MEANS DIRECTLY RESPONSIVE TO SYNCHRONIZING SIGNALS TO BE TRIGGERED INGO CONDUCTION, AND MEANS TO CONNECT A SOURCE OF SYNCHRONIZING SIGNALS TO SAID MEANS RESPONSIVE TO SYNCHRONIZING SIGNALS TO SELECTIVELY ESTABLISH A CLOSED, SERIES CIRCUIT INCLUDING SAID CAPACITOR AND SAID CHARGE SUPPLY DEVICE TO CAUSE A CHARGE FROM SAID CHARGE SUPPLY DEVICE TO BE EFFECTIVE UPON ESTABLISHIMENT OF SAID CLOSED, SERIES CIRCUIT TO ESTABLISH A POTENTIAL ACROSS SAID FIRST CAPACITOR PROPER TO CHARGE SAID CAPACITOR THROUGH SAID CONDUCTIVE CONNECTION TO THEREBY CONTROL THE PHASE STATUS OF SAID OSCILLATOR.
Claim 2
Dependent Claim
245 words
A SYNCHRONIZATION CIRCUIT FOR AN OSCILLATOR HAVING A FIRST ACTIVE ELEMENT WITH AN INPUT AND AN OUTPUT INTERCONNECTED TO A SECOND ACTIVE ELEMENT WITH AN INPUT AND AN OUTPUT TO FORM AN ASTABLE MULTIVIBRATOR, SAID ASTABLE MULTIVIBARTOR HAVING A FIRST CAPACITOR IN A TIME CONSTANT CIRCUIT BETWEEN THE OUTPUT OF SAID FIRST ACTIVE ELEMENT AND THE INPUT OF SAID SECOND ACTIVE ELEMENT FOR CONTROL OF CONDUCTION OF SAID SECOND ACTIVE ELEMENT BY THE CONDUCTION STATUS OF SAID FIRST ACTIVE ELEMENT, THE COMBINATION COMPRISING A CHARGE SUPPLY DEVIC E, MEANS ESTABLISHING A CONDUCTIVE CONNECTING BETWEEN SAID CAPACITOR AND SAID CHARGE SUPPLY DEVICE, SAID CONDUCTIVE CONNECTION COMPRISING CIRCUIT ELEMENTS ADAPTED AND CONNECTED IN SAID SYNCHRONIZING CIRCUITS TO BE PERMANENTLY CAPABLE OF CONDUCTING CURRENT IN ONE DIRECTION DURING EVERY OPERATING STATUS OF SAID SYCHRONIZING CIRCUIT AND INCLUDING AT LEAST ONE UNIDIRECTIONAL DEVICE TO ISOLATE THE CONDUCTIVE CONNECTION FROM SAID FIRST AND SAID SECOND ACTIVE ELEMENTS AND ALSO COMPRISING NORMALLY NON-CONDUCTIVE CIRCUIT MEANS DIRECTLY RESPONSIVE TO SYNCHRONIZING SIGNALS TO BE TRIGGERED INGO CONDUCTION, AND MEANS TO CONNECT A SOURCE OF SYNCHRONIZING SIGNALS TO SAID MEANS RESPONSIVE TO SYNCHRONIZING SIGNALS TO SELECTIVELY ESTABLISH A CLOSED, SERIES CIRCUIT INCLUDING SAID CAPACITOR AND SAID CHARGE SUPPLY DEVICE TO CAUSE A CHARGE FROM SAID CHARGE SUPPLY DEVICE TO BE EFFECTIVE UPON ESTABLISHIMENT OF SAID CLOSED, SERIES CIRCUIT TO ESTABLISH A POTENTIAL ACROSS SAID FIRST CAPACITOR PROPER TO CHARGE SAID CAPACITOR THROUGH SAID CONDUCTIVE CONNECTION TO THEREBY CONTROL THE PHASE STATUS OF SAID OSCILLATOR.
References Cited (Backward Citations)
US3133257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |