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JPS52150905A - Noise prevention circuit - Google Patents

Noise prevention circuit

Info

Publication number
JPS52150905A
JPS52150905A JP6765576A JP6765576A JPS52150905A JP S52150905 A JPS52150905 A JP S52150905A JP 6765576 A JP6765576 A JP 6765576A JP 6765576 A JP6765576 A JP 6765576A JP S52150905 A JPS52150905 A JP S52150905A
Authority
JP
Japan
Prior art keywords
prevention circuit
noise prevention
circuit
monitoring
board
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
JP6765576A
Other languages
Japanese (ja)
Inventor
Koshu Yoshizaki
Kenichi Mizuno
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6765576A priority Critical patent/JPS52150905A/en
Publication of JPS52150905A publication Critical patent/JPS52150905A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To prevent malfunction of the circuit which displays data, etc. by monitoring the noise mixing into the strobe line at B board of an electronic converter.
JP6765576A 1976-06-11 1976-06-11 Noise prevention circuit Pending JPS52150905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6765576A JPS52150905A (en) 1976-06-11 1976-06-11 Noise prevention circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6765576A JPS52150905A (en) 1976-06-11 1976-06-11 Noise prevention circuit

Publications (1)

Publication Number Publication Date
JPS52150905A true JPS52150905A (en) 1977-12-15

Family

ID=13351242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6765576A Pending JPS52150905A (en) 1976-06-11 1976-06-11 Noise prevention circuit

Country Status (1)

Country Link
JP (1) JPS52150905A (en)

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