JPS544009A - Detection system of diode conduction failure in diode matrix selection circuit - Google Patents

Detection system of diode conduction failure in diode matrix selection circuit

Info

Publication number
JPS544009A
JPS544009A JP6840177A JP6840177A JPS544009A JP S544009 A JPS544009 A JP S544009A JP 6840177 A JP6840177 A JP 6840177A JP 6840177 A JP6840177 A JP 6840177A JP S544009 A JPS544009 A JP S544009A
Authority
JP
Japan
Prior art keywords
diode
detection system
selection circuit
conduction failure
matrix selection
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
JP6840177A
Other languages
Japanese (ja)
Other versions
JPS5753019B2 (en
Inventor
Koichi Miyamoto
Takao Ueno
Chukichi Ono
Yasuo Inoue
Yasushi Miyake
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
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP6840177A priority Critical patent/JPS544009A/en
Publication of JPS544009A publication Critical patent/JPS544009A/en
Publication of JPS5753019B2 publication Critical patent/JPS5753019B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To detect the conduction failure of diodes, by quantizing the potential of driving output lines with an identtifying circuit and by inspecting the quantized potential with a voltage inspection circuit.
JP6840177A 1977-06-11 1977-06-11 Detection system of diode conduction failure in diode matrix selection circuit Granted JPS544009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6840177A JPS544009A (en) 1977-06-11 1977-06-11 Detection system of diode conduction failure in diode matrix selection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6840177A JPS544009A (en) 1977-06-11 1977-06-11 Detection system of diode conduction failure in diode matrix selection circuit

Publications (2)

Publication Number Publication Date
JPS544009A true JPS544009A (en) 1979-01-12
JPS5753019B2 JPS5753019B2 (en) 1982-11-10

Family

ID=13372624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6840177A Granted JPS544009A (en) 1977-06-11 1977-06-11 Detection system of diode conduction failure in diode matrix selection circuit

Country Status (1)

Country Link
JP (1) JPS544009A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946369A (en) * 1982-09-09 1984-03-15 Toyota Motor Corp Ignition timing control for internal-combustion engine
JPS6067770A (en) * 1983-09-22 1985-04-18 Honda Motor Co Ltd Ignition timing controller of internal-combustion engine mounted on automatic gear transmission vehicle
JPS6197588U (en) * 1984-12-03 1986-06-23
JPS61108886U (en) * 1984-12-21 1986-07-10

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946369A (en) * 1982-09-09 1984-03-15 Toyota Motor Corp Ignition timing control for internal-combustion engine
JPS6067770A (en) * 1983-09-22 1985-04-18 Honda Motor Co Ltd Ignition timing controller of internal-combustion engine mounted on automatic gear transmission vehicle
JPS6197588U (en) * 1984-12-03 1986-06-23
JPS61108886U (en) * 1984-12-21 1986-07-10

Also Published As

Publication number Publication date
JPS5753019B2 (en) 1982-11-10

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