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US3174055A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulse shaper and differentiator

Assignee: International Business Machines Corp
•
Filing: 1960-11-03
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Granted: 1965-03-16
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Expires: 1980-11-03
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Abstract

No abstract record available.

Inventors

  • 👤 Genung L Clapper

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 14:24
CPC Classifications
H; H03; H03K; H03K6/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
A PULSE SHAPING AND DIFFERENTIATING CIRCUIT COMPRISING: A TRANSISTOR AMPLIFIER HAIVNG EMITTER, BASE AND COLLECTOR ELECTRODES; A SOURCE OF VOLTAGE; A BIASING CIRCUIT CONNECTED BETWEEN SAID VOLTAGE SOURCE AND THE BASE ELECTRODE OF SAID TRANSISTOR FOR NORMALLY BIASING SAID TRANSISTOR OFF; A SOURCE OF INPUT VOLTAGE PULSES; A SOURCE OF RETURN VOLTAGE; AND A SERIES RESONANT CIRCUIT INCLUDING A CAPACITOR HAVING ONE SIDE CONNECTED TO THE SOURCE OF VOLTAGE PULSES AND AN INDUCTOR HAVING ONE SIDE CONNECTED TO THE SOURCE OF RETURN VOLTAGE AND THE JUNCTION BETWEEN THE CAPACITOR AND THE INDUCTOR CONNECTED TO THE BIAS CIRCUIT AND TO THE BASE ELECTRODE AND RESONANT AT A FREQUENCY SLIGHTLY HIGHER THAN THE MAXIMUM FREQUENCY OF THE INPUT PULSES TO STORE ENERGY FROM THE LEADING EDGE OF EACH INPUT PULSE IN THE INDUCTOR AND TO ADD THE ENERGY REMAINING IN THE INDUCTOR TO THE ENERGY FROM THE TRAILING EDGE OF EACH INPUT PULSE TO EFFECT A STRONG TURN ON OF THE TRANSISTOR AMPLIFIER. THEREBY TO PRODUCE A WELL-SHAPED OUTPUT PULSE.
Claim 2
Dependent Claim 168 words
A PULSE SHAPING AND DIFFERENTIATING CIRCUIT COMPRISING: A TRANSISTOR AMPLIFIER HAIVNG EMITTER, BASE AND COLLECTOR ELECTRODES; A SOURCE OF VOLTAGE; A BIASING CIRCUIT CONNECTED BETWEEN SAID VOLTAGE SOURCE AND THE BASE ELECTRODE OF SAID TRANSISTOR FOR NORMALLY BIASING SAID TRANSISTOR OFF; A SOURCE OF INPUT VOLTAGE PULSES; A SOURCE OF RETURN VOLTAGE; AND A SERIES RESONANT CIRCUIT INCLUDING A CAPACITOR HAVING ONE SIDE CONNECTED TO THE SOURCE OF VOLTAGE PULSES AND AN INDUCTOR HAVING ONE SIDE CONNECTED TO THE SOURCE OF RETURN VOLTAGE AND THE JUNCTION BETWEEN THE CAPACITOR AND THE INDUCTOR CONNECTED TO THE BIAS CIRCUIT AND TO THE BASE ELECTRODE AND RESONANT AT A FREQUENCY SLIGHTLY HIGHER THAN THE MAXIMUM FREQUENCY OF THE INPUT PULSES TO STORE ENERGY FROM THE LEADING EDGE OF EACH INPUT PULSE IN THE INDUCTOR AND TO ADD THE ENERGY REMAINING IN THE INDUCTOR TO THE ENERGY FROM THE TRAILING EDGE OF EACH INPUT PULSE TO EFFECT A STRONG TURN ON OF THE TRANSISTOR AMPLIFIER. THEREBY TO PRODUCE A WELL-SHAPED OUTPUT PULSE.

References Cited (Backward Citations)

US2891172A Cited
US2985769A Cited
US2981852A Cited
US3068366A Cited
US3038128A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-15 1968-09-14 1969-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-15 1972-09-14 1973-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-15 1976-09-14 1977-03-16 $7700.00 Window Closed / Lapsed

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