JPS5590162A - Speed distortion detection system - Google Patents

Speed distortion detection system

Info

Publication number
JPS5590162A
JPS5590162A JP16099378A JP16099378A JPS5590162A JP S5590162 A JPS5590162 A JP S5590162A JP 16099378 A JP16099378 A JP 16099378A JP 16099378 A JP16099378 A JP 16099378A JP S5590162 A JPS5590162 A JP S5590162A
Authority
JP
Japan
Prior art keywords
pulse
count value
distortion
value
pulses
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.)
Granted
Application number
JP16099378A
Other languages
Japanese (ja)
Other versions
JPS5820180B2 (en
Inventor
Takao Sagane
Sadao Watanabe
Yoshimasa Watanabe
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP53160993A priority Critical patent/JPS5820180B2/en
Publication of JPS5590162A publication Critical patent/JPS5590162A/en
Publication of JPS5820180B2 publication Critical patent/JPS5820180B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To detect speed distortion of a start-stop signal by generating an odd number of pulses in a unit period, and then by comparing a count value, obtained by accumulating comparison values between the center pulse and next significant moment pulse, with a set value. CONSTITUTION:This system consists of a start element detector, timer, pulse generator, counter, etc. The eighth pulse in a string of fifteen pulses generated by a pulse generator in every unit period is regarded as the center pulse and the 3rd element makes the timer output center pulse Pc1. From this point until the counter receives next significant moment detection pulse Pd, pulses are con tinuously counted and the count value is outputted to a subtracter. On every input, the subtracter subtracts ''8'' from the count value and accumulates the result. Then, the comparator compares this accumulated value with fixed value (m) and when the accumulation result is not within the reference range, it is detected and held, so that a reference setter will detect lagging distortion and leading distortion.
JP53160993A 1978-12-28 1978-12-28 Speed distortion detection method Expired JPS5820180B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53160993A JPS5820180B2 (en) 1978-12-28 1978-12-28 Speed distortion detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53160993A JPS5820180B2 (en) 1978-12-28 1978-12-28 Speed distortion detection method

Publications (2)

Publication Number Publication Date
JPS5590162A true JPS5590162A (en) 1980-07-08
JPS5820180B2 JPS5820180B2 (en) 1983-04-21

Family

ID=15726526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53160993A Expired JPS5820180B2 (en) 1978-12-28 1978-12-28 Speed distortion detection method

Country Status (1)

Country Link
JP (1) JPS5820180B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831499A (en) * 1981-08-17 1983-02-24 安藤電気株式会社 Distortion measuring circuit
JPS59125142A (en) * 1982-12-30 1984-07-19 Sony Corp Jitter detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833706A (en) * 1971-09-01 1973-05-12
JPS48100007A (en) * 1972-03-29 1973-12-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833706A (en) * 1971-09-01 1973-05-12
JPS48100007A (en) * 1972-03-29 1973-12-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831499A (en) * 1981-08-17 1983-02-24 安藤電気株式会社 Distortion measuring circuit
JPS59125142A (en) * 1982-12-30 1984-07-19 Sony Corp Jitter detector
JPH0463580B2 (en) * 1982-12-30 1992-10-12 Sony Corp

Also Published As

Publication number Publication date
JPS5820180B2 (en) 1983-04-21

Similar Documents

Publication Publication Date Title
JPS57144465A (en) Speed detecting method
DE69028235T2 (en) Vertical sync signal detector
JPS5590162A (en) Speed distortion detection system
GB1477667A (en) Circuit arrangement for producing a pulse sequence corresponding to the foetal cardiac pulses
JPS5750021A (en) Periodic signal detector
SU713548A3 (en) Protecting device for multifrequency detector from faulty operation
SU481121A1 (en) Discrete bandpass filter
JPS5681063A (en) Spark monitoring device for current collector
JPS57178162A (en) Speed detecting method
JPS579147A (en) Detector for synchronizing coding word
JPS55138923A (en) Pulse width detecting device
SU1322438A1 (en) Generator of time intervals
KR910005655A (en) Vertical phase control circuit
SU1739362A1 (en) Device for measuring time intervals
SU1319281A1 (en) Device for converting time intervals to digital code
SU446842A1 (en) Device for generating a measurement interval for digital frequency meters
SU496673A1 (en) Pulse shaper
SU661832A1 (en) Start-stop timer of driven station sessions
JPS56147574A (en) Ghost elimination device
JPS5547430A (en) Detecting device for abnormality of machine
JPS5497466A (en) Waveform discriminating device
JPS5679525A (en) Signal detector
JPS5723376A (en) Signal receiving system
JPS5690632A (en) Detecting circuit for step-out of phase synchronizing circuit
JPS54127375A (en) Waveform level discriminating device