JPS56161717A - Input signal protecting circuit - Google Patents

Input signal protecting circuit

Info

Publication number
JPS56161717A
JPS56161717A JP6565080A JP6565080A JPS56161717A JP S56161717 A JPS56161717 A JP S56161717A JP 6565080 A JP6565080 A JP 6565080A JP 6565080 A JP6565080 A JP 6565080A JP S56161717 A JPS56161717 A JP S56161717A
Authority
JP
Japan
Prior art keywords
input signal
counter
input
output
circuit
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
JP6565080A
Other languages
Japanese (ja)
Inventor
Taketoshi Sanbe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6565080A priority Critical patent/JPS56161717A/en
Publication of JPS56161717A publication Critical patent/JPS56161717A/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

Landscapes

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

Abstract

PURPOSE:To form an input signal protecting circuit with high reliability without malfunction, by checking an input signal through the provision of a counter circuit which monitors the input of complete input waveform continuously not only at clock. CONSTITUTION:The circuit consists of a switch A of an exclusive OR gate which switches the polarity of an input signal, counter B which counts the time width of the output of the switch A with a clock signal and outputs pulse signals when the result of count reaches a prescribed number, and a toggle flip-flop which stores the counter output by taking the output T1 of the counter B as the input. Thus, the input signal is processed digitally, allowing a control circuit formed with LSIs to be made effective.
JP6565080A 1980-05-17 1980-05-17 Input signal protecting circuit Pending JPS56161717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6565080A JPS56161717A (en) 1980-05-17 1980-05-17 Input signal protecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6565080A JPS56161717A (en) 1980-05-17 1980-05-17 Input signal protecting circuit

Publications (1)

Publication Number Publication Date
JPS56161717A true JPS56161717A (en) 1981-12-12

Family

ID=13293089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6565080A Pending JPS56161717A (en) 1980-05-17 1980-05-17 Input signal protecting circuit

Country Status (1)

Country Link
JP (1) JPS56161717A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477312A (en) * 1987-09-18 1989-03-23 Aisin Seiki Noise removing circuit
JPH01105205A (en) * 1987-07-30 1989-04-21 Mitsubishi Rayon Co Ltd Clad material for optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01105205A (en) * 1987-07-30 1989-04-21 Mitsubishi Rayon Co Ltd Clad material for optical fiber
JPS6477312A (en) * 1987-09-18 1989-03-23 Aisin Seiki Noise removing circuit

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