JPS5644240A - Error rate supervisory circuit - Google Patents

Error rate supervisory circuit

Info

Publication number
JPS5644240A
JPS5644240A JP12118479A JP12118479A JPS5644240A JP S5644240 A JPS5644240 A JP S5644240A JP 12118479 A JP12118479 A JP 12118479A JP 12118479 A JP12118479 A JP 12118479A JP S5644240 A JPS5644240 A JP S5644240A
Authority
JP
Japan
Prior art keywords
error
data
error rate
false
receiving data
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
JP12118479A
Other languages
Japanese (ja)
Inventor
Shinichiro Aoki
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 JP12118479A priority Critical patent/JPS5644240A/en
Publication of JPS5644240A publication Critical patent/JPS5644240A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To make it possible to detect the error rate of receiving data only with receiving data, by counting the number of false error pulses, which has a fixed relation to the number of error data, during a fixed time and by averaging them after D/A conversion. CONSTITUTION:False error pulse generator 1 generates the number of false error pulses which has a fixed relation to the number of error data included in receiving data and generated in transmission. Counter 4 counts false error pulses during the time of the gate pulse of N-bit length generated in a proper position of the transmission data part in the data burst to be measured, and contents of counter 4 are set to register 5. D/A converter 6 generates an analogue signal corresponding to the digital output held in register 7 and integrates this analogue signal by low-pass filter 7 and averages it, and this signal is output through amplifier 8 as a DC output voltage indicating an error rate.
JP12118479A 1979-09-20 1979-09-20 Error rate supervisory circuit Pending JPS5644240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12118479A JPS5644240A (en) 1979-09-20 1979-09-20 Error rate supervisory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12118479A JPS5644240A (en) 1979-09-20 1979-09-20 Error rate supervisory circuit

Publications (1)

Publication Number Publication Date
JPS5644240A true JPS5644240A (en) 1981-04-23

Family

ID=14804927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12118479A Pending JPS5644240A (en) 1979-09-20 1979-09-20 Error rate supervisory circuit

Country Status (1)

Country Link
JP (1) JPS5644240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639399U (en) * 1986-06-30 1988-01-21
JP2009103284A (en) * 2007-10-25 2009-05-14 Kayaba Ind Co Ltd Double cylinder type shock absorber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639399U (en) * 1986-06-30 1988-01-21
JP2009103284A (en) * 2007-10-25 2009-05-14 Kayaba Ind Co Ltd Double cylinder type shock absorber

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