← Back to Patent Explorer
US3210691A Expired / Lapsed US ⏱️ 0.0 years remaining

Phase control circuit for multivibrators

Assignee: International Business Machines Corp
•
Filing: 1964-06-08
•
Granted: 1965-10-05
•
Expires: 1984-06-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag