JPS5431245A - Fault detection circuit - Google Patents

Fault detection circuit

Info

Publication number
JPS5431245A
JPS5431245A JP9768677A JP9768677A JPS5431245A JP S5431245 A JPS5431245 A JP S5431245A JP 9768677 A JP9768677 A JP 9768677A JP 9768677 A JP9768677 A JP 9768677A JP S5431245 A JPS5431245 A JP S5431245A
Authority
JP
Japan
Prior art keywords
detection circuit
fault detection
value
fault
counting
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
JP9768677A
Other languages
Japanese (ja)
Other versions
JPS5821297B2 (en
Inventor
Shigeo Kaneda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP52097686A priority Critical patent/JPS5821297B2/en
Publication of JPS5431245A publication Critical patent/JPS5431245A/en
Publication of JPS5821297B2 publication Critical patent/JPS5821297B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE: To secure a detection for the fault by counting the changing frequencies of the state occurring at plural signal lines through a counter circuit and then checking the difference between the count value and the value at the expected action time.
COPYRIGHT: (C)1979,JPO&Japio
JP52097686A 1977-08-15 1977-08-15 Failure detection circuit Expired JPS5821297B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52097686A JPS5821297B2 (en) 1977-08-15 1977-08-15 Failure detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52097686A JPS5821297B2 (en) 1977-08-15 1977-08-15 Failure detection circuit

Publications (2)

Publication Number Publication Date
JPS5431245A true JPS5431245A (en) 1979-03-08
JPS5821297B2 JPS5821297B2 (en) 1983-04-28

Family

ID=14198844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52097686A Expired JPS5821297B2 (en) 1977-08-15 1977-08-15 Failure detection circuit

Country Status (1)

Country Link
JP (1) JPS5821297B2 (en)

Also Published As

Publication number Publication date
JPS5821297B2 (en) 1983-04-28

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