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JPS5781751A - Detecting circuit of pulse signal - Google Patents

Detecting circuit of pulse signal

Info

Publication number
JPS5781751A
JPS5781751A JP15844080A JP15844080A JPS5781751A JP S5781751 A JPS5781751 A JP S5781751A JP 15844080 A JP15844080 A JP 15844080A JP 15844080 A JP15844080 A JP 15844080A JP S5781751 A JPS5781751 A JP S5781751A
Authority
JP
Japan
Prior art keywords
pulse
comparing
circuit
discriminating circuit
supplied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15844080A
Other languages
Japanese (ja)
Inventor
Kiyoshi Takeda
Akio Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15844080A priority Critical patent/JPS5781751A/en
Publication of JPS5781751A publication Critical patent/JPS5781751A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/12—Shaping pulses by steepening leading or trailing edges

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To assuredly detect a pulse is case the rise and fall of the pulse are gentle or when the number of pulses must be detected from the zero level, by securing the detection even for such pulse that has a delicate change at a level approximate to the threshold value for the detection of pulse. CONSTITUTION:The input signals delivered from an amplifying circuit and an output limiting circuit are supplied to a comparing/discriminating circuit. The comparing/discriminating circuit consists of comparators IC6 and IC7, resistances R19-R23 and Zener diodes ZD4 and ZD5 respectively. The ON/OFF of the pulse detected by such comparing/discriminating circuit is stored in two FF2 and DD3 that work under the different conditions. The outputs of both FFs are supplied to a NOR gate NOR2. Then the ON/OFF of the final pulse is outputted through the FF5 only when the NOR2 is on or off.
JP15844080A 1980-11-11 1980-11-11 Detecting circuit of pulse signal Pending JPS5781751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15844080A JPS5781751A (en) 1980-11-11 1980-11-11 Detecting circuit of pulse signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15844080A JPS5781751A (en) 1980-11-11 1980-11-11 Detecting circuit of pulse signal

Publications (1)

Publication Number Publication Date
JPS5781751A true JPS5781751A (en) 1982-05-21

Family

ID=15671809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15844080A Pending JPS5781751A (en) 1980-11-11 1980-11-11 Detecting circuit of pulse signal

Country Status (1)

Country Link
JP (1) JPS5781751A (en)

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