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US3248558A Expired / Lapsed US ⏱️ 0.0 years remaining

Distributing and encoding devices including sequentially nonconducting transistor chains employing input time constant circuits to effect digital delay

Assignee: Unisys Corp
•
Filing: 1959-05-01
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Granted: 1966-04-26
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Expires: 1979-05-01
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Abstract

No abstract record available.

Inventors

  • 👤 Seif Eric

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 14:34
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H03K5/15026; H03K5/1504

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 194 words
A PULSE GENERATOR CIRCUIT FOR PRODUCING FROM A SINGLE INPUT PULSE A SERIES OF TIME-SPACED OUTPUT PULSES ONE AT EACH OF A PLURALITY OF DIFFERENT OUTPUT TERMINALS, SAID PULSE GENERATOR CIRCUIT COMPRISING: A SERIES OF TRANSISTOR STAGES INCLUDING A FIRST AND AT LEAST ONE FOLLOWING STAGE COUPLED IN TANDEM, EACH STAGE INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; MEANS, INCLUDING A COLLECTOR RESISTOR FOR EACH STAGE, CONNETING A SOURCE OF OPERATING POTENTIAL BETWEEN THE COLLECTOR AND EMITTER ELECTORDES OF EACH TRANSISTOR; MEANS, INCLUDING A COUPLING CAPACITOR FOR EACH STAGE EXCEPT THE LAST, COUPLING THE COLLECTOR OF EACH TRANSISTOR TO THE BASE OF THE NEXT ADJACENT TRANSISTOR; MEANS, INCLUDING A BASE RESISTOR FOR EACH STAGE, CONNECTING SAID SOURCE OF OPERATING POTENTIAL BETWEEN THE BASE AND EMITTER OF EACH TRANSISTOR, SAID COUPLING CAPACITOR AND SAID COLLECTOR RESISTOR OF EACH STAGE EXCEPT THE LAST COMPRISING A CHARGE PATH AND SAID BASE RESISTOR AND SAID COUPLING CAPACITOR OF EACH SAID STAGE FOLLOWING THE FIRST STASGE COMPRISING A DISCHARGE PATH OF COMPONENT VALUE SUCH THAT THE CHARGING PATH TIME CONSTANT IS SHORTER THAN THE DISCHARGING PATH TIME CONSTANT, SAID SOURCE OF OPERATING POTENTIAL BEING OF A POLARITY
Claim 2
Dependent Claim 194 words
A PULSE GENERATOR CIRCUIT FOR PRODUCING FROM A SINGLE INPUT PULSE A SERIES OF TIME-SPACED OUTPUT PULSES ONE AT EACH OF A PLURALITY OF DIFFERENT OUTPUT TERMINALS, SAID PULSE GENERATOR CIRCUIT COMPRISING: A SERIES OF TRANSISTOR STAGES INCLUDING A FIRST AND AT LEAST ONE FOLLOWING STAGE COUPLED IN TANDEM, EACH STAGE INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES; MEANS, INCLUDING A COLLECTOR RESISTOR FOR EACH STAGE, CONNETING A SOURCE OF OPERATING POTENTIAL BETWEEN THE COLLECTOR AND EMITTER ELECTORDES OF EACH TRANSISTOR; MEANS, INCLUDING A COUPLING CAPACITOR FOR EACH STAGE EXCEPT THE LAST, COUPLING THE COLLECTOR OF EACH TRANSISTOR TO THE BASE OF THE NEXT ADJACENT TRANSISTOR; MEANS, INCLUDING A BASE RESISTOR FOR EACH STAGE, CONNECTING SAID SOURCE OF OPERATING POTENTIAL BETWEEN THE BASE AND EMITTER OF EACH TRANSISTOR, SAID COUPLING CAPACITOR AND SAID COLLECTOR RESISTOR OF EACH STAGE EXCEPT THE LAST COMPRISING A CHARGE PATH AND SAID BASE RESISTOR AND SAID COUPLING CAPACITOR OF EACH SAID STAGE FOLLOWING THE FIRST STASGE COMPRISING A DISCHARGE PATH OF COMPONENT VALUE SUCH THAT THE CHARGING PATH TIME CONSTANT IS SHORTER THAN THE DISCHARGING PATH TIME CONSTANT, SAID SOURCE OF OPERATING POTENTIAL BEING OF A POLARITY

References Cited (Backward Citations)

US2639378A Cited
US2876365A Cited
US2886639A Cited
US2837663A Cited
US2891195A Cited
US2933625A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-25 1969-10-25 1970-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-25 1973-10-25 1974-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-25 1977-10-25 1978-04-26 $7700.00 Window Closed / Lapsed

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