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
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 (7)

* 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
JPH0424549B2 (en) * 1982-09-09 1992-04-27 Toyota Motor Co Ltd
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
JPH0328591B2 (en) * 1983-09-22 1991-04-19 Honda Motor Co Ltd
JPS6197588U (en) * 1984-12-03 1986-06-23
JPS61108886U (en) * 1984-12-21 1986-07-10
JPH053746Y2 (en) * 1984-12-21 1993-01-28

Also Published As

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

Similar Documents

Publication Publication Date Title
JPS53107853A (en) Concentration detection method of developer
JPS544009A (en) Detection system of diode conduction failure in diode matrix selection circuit
KR830003857A (en) Transformer
JPS5329725A (en) Detection method for deterioration of developer
JPS52127292A (en) Analyzer
JPS51130246A (en) Method of abnormal reading detection in an a-d converter
JPS5364084A (en) System spectometer
JPS52144290A (en) Polarity-detecting circuit
JPS53128259A (en) C-mos circuit
JPS5238272A (en) Device for cheking operating condition of electric circuits
JPS54502A (en) Selection system of light emitting element
JPS56114347A (en) Probe card
JPS5326648A (en) Abnormal amplitude limiter and its detection/dispaly circuit
JPS53126241A (en) Multi-input arithmetic unit for analog signal
JPS5733336A (en) Checker for pressure gage
JPS52113790A (en) Defect inspecting apparatus
FR2437000A1 (en) Battery fatigue detector with voltage divider - has voltage comparator whose output is coupled to its second input over diode to enable its operation as store
JPS5369561A (en) Level converting circuit
JPS5295156A (en) Pulse supplier
JPS53134491A (en) Tester for oxygen concentration detector
JPS5374814A (en) Construction work test method
JPS5347794A (en) Strength measurement device for meteorological echo
JPS5388756A (en) Device for measuring rail
JPS547214A (en) Cross-point switch matrix circuit
JPS5424662A (en) Origin detecting device of linear moving body