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US3155841A Expired / Lapsed US ⏱️ 0.0 years remaining

Logical nu out of m code check circuit

Assignee: NEC Corp
•
Filing: 1960-10-26
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Granted: 1964-11-03
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Expires: 1980-10-26
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Abstract

No abstract record available.

Inventors

  • 👤 Okuda Jiro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:32
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/085

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 169 words
AN N OUT OF M CODE CHECK CIRCUIT FOR M BINARY STATE INPUTS COMPRISING: A TRANSISTOR HAVING BASE EMITTER AND COLLECTOR ELECTRODES; MEANS CONNECTED BETWEEN SAID INPUTS AND THE SAID EMITTER FOR CONVERTING THE BINARY STATE INPUTS TO AN EMITTER APPLIED ANALOGUE VOLTAGE REPRESENTATIVE OF THE NUMBER OF INPUTS IN ONE BINARY STATE; MEANS CONNECTED TO THE SAID BASE AND COLLECTOR ELECTRODES FOR BIASING SAID TRANSISTOR CONDUCTIVE FOR AN ANALOGUE VOLTAGE REPRESENTING N INPUTS IN SAID ONE STATE AND SATURATED FOR VOLTAGES ABOVE THAT VALUE; A TWO TERMINAL DIODE GATE COUPLED AT ONE TERMINAL THEREOF TO THE COLLECTOR OF SAID TRANSISTOR; AND MEANS CONNECTED ACROSS BOTH TERMINALS OF SAID DIODE GATE FOR THE BIASING THEREOF AT CUTOFF ONLY WHEN SAID TRANSISTOR IS NON-CONDUCTIVE; WHEREBY WHEN SAID DIODE GATE IS PULSED AT THE COLLECTOR CONNECTED END THEREOF SAID PULSE WILL PASS THROUGH SAID DIODE GATE ONLY UPON SAID TRANSISTOR BEING CONDUCTIVE, AND THEN ONLY WHEN THE TRANSISTOR IS NOT SATURATED AND THE COLLECTOR-BASE PORTION THEREOF ACTS AS A PULSE SHUNT.
Claim 2
Dependent Claim 169 words
AN N OUT OF M CODE CHECK CIRCUIT FOR M BINARY STATE INPUTS COMPRISING: A TRANSISTOR HAVING BASE EMITTER AND COLLECTOR ELECTRODES; MEANS CONNECTED BETWEEN SAID INPUTS AND THE SAID EMITTER FOR CONVERTING THE BINARY STATE INPUTS TO AN EMITTER APPLIED ANALOGUE VOLTAGE REPRESENTATIVE OF THE NUMBER OF INPUTS IN ONE BINARY STATE; MEANS CONNECTED TO THE SAID BASE AND COLLECTOR ELECTRODES FOR BIASING SAID TRANSISTOR CONDUCTIVE FOR AN ANALOGUE VOLTAGE REPRESENTING N INPUTS IN SAID ONE STATE AND SATURATED FOR VOLTAGES ABOVE THAT VALUE; A TWO TERMINAL DIODE GATE COUPLED AT ONE TERMINAL THEREOF TO THE COLLECTOR OF SAID TRANSISTOR; AND MEANS CONNECTED ACROSS BOTH TERMINALS OF SAID DIODE GATE FOR THE BIASING THEREOF AT CUTOFF ONLY WHEN SAID TRANSISTOR IS NON-CONDUCTIVE; WHEREBY WHEN SAID DIODE GATE IS PULSED AT THE COLLECTOR CONNECTED END THEREOF SAID PULSE WILL PASS THROUGH SAID DIODE GATE ONLY UPON SAID TRANSISTOR BEING CONDUCTIVE, AND THEN ONLY WHEN THE TRANSISTOR IS NOT SATURATED AND THE COLLECTOR-BASE PORTION THEREOF ACTS AS A PULSE SHUNT.

References Cited (Backward Citations)

US2603746A Cited
US2950461A Cited
US2853632A Cited
US3078376A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-11-03 1968-05-04 1968-11-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-11-03 1972-05-04 1972-11-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-11-03 1976-05-04 1976-11-03 $7700.00 Window Closed / Lapsed

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