JPS5477003A - Coincidence output circuit system - Google Patents

Coincidence output circuit system

Info

Publication number
JPS5477003A
JPS5477003A JP14431877A JP14431877A JPS5477003A JP S5477003 A JPS5477003 A JP S5477003A JP 14431877 A JP14431877 A JP 14431877A JP 14431877 A JP14431877 A JP 14431877A JP S5477003 A JPS5477003 A JP S5477003A
Authority
JP
Japan
Prior art keywords
output
outputs
circuit
waveforms
waveform
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
JP14431877A
Other languages
Japanese (ja)
Inventor
Hidetoshi Ueda
Taketo Toyoda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14431877A priority Critical patent/JPS5477003A/en
Publication of JPS5477003A publication Critical patent/JPS5477003A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Manipulation Of Pulses (AREA)
  • Logic Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To fail in safe the signal detection circuit of the receiver of an automatic train stop device, etc., by detecting it as the trouble of the receiver that its output will not vary significantly when a signal is inputted. CONSTITUTION:When input signal 1 of waveform (a) is supplied, signal detection circuits 2a and 2b generate outputs 3a and 3b of waveforms (b) and (e). At the same time, reference frequency generating circuit 6 generates outputs 7 to 9 of waveforms (d) to (f). These outputs 7 and 8 allow synchronizing circuits 4a and 4b to generate outputs 5a and 5b of waveforms (g) and (f). At this time, output (9) has reset coincidence output circuit 10. By being supplied with outputs 5a and 5b of synchronizing circuits 4a and 4b, coincidence output circuit 10 generates output 11 of the different waveform such as waveform (i) significantly and, consequently, signals are judged to have been received correctly. If either path gets in trouble, neither synchronizing circuit 4a nor 4b outputs a pulse, so that no significant output will appear at output 11 definitely.
JP14431877A 1977-12-01 1977-12-01 Coincidence output circuit system Pending JPS5477003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14431877A JPS5477003A (en) 1977-12-01 1977-12-01 Coincidence output circuit system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14431877A JPS5477003A (en) 1977-12-01 1977-12-01 Coincidence output circuit system

Publications (1)

Publication Number Publication Date
JPS5477003A true JPS5477003A (en) 1979-06-20

Family

ID=15359292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14431877A Pending JPS5477003A (en) 1977-12-01 1977-12-01 Coincidence output circuit system

Country Status (1)

Country Link
JP (1) JPS5477003A (en)

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