JPS52105706A - Trouble detection system for polyphase sound generator - Google Patents

Trouble detection system for polyphase sound generator

Info

Publication number
JPS52105706A
JPS52105706A JP2115276A JP2115276A JPS52105706A JP S52105706 A JPS52105706 A JP S52105706A JP 2115276 A JP2115276 A JP 2115276A JP 2115276 A JP2115276 A JP 2115276A JP S52105706 A JPS52105706 A JP S52105706A
Authority
JP
Japan
Prior art keywords
polyphase
detection system
sound generator
trouble detection
trouble
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
JP2115276A
Other languages
Japanese (ja)
Inventor
Akio Suehiro
Shinichi Suzuki
Masanori Nakazawa
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
NTT Inc
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP2115276A priority Critical patent/JPS52105706A/en
Publication of JPS52105706A publication Critical patent/JPS52105706A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To reduce the time down of a talkie equipment for the purpose of improved service, by replacing automatically a rotary memory in which a trouble has occurred with another one.
JP2115276A 1976-03-01 1976-03-01 Trouble detection system for polyphase sound generator Pending JPS52105706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2115276A JPS52105706A (en) 1976-03-01 1976-03-01 Trouble detection system for polyphase sound generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2115276A JPS52105706A (en) 1976-03-01 1976-03-01 Trouble detection system for polyphase sound generator

Publications (1)

Publication Number Publication Date
JPS52105706A true JPS52105706A (en) 1977-09-05

Family

ID=12046924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2115276A Pending JPS52105706A (en) 1976-03-01 1976-03-01 Trouble detection system for polyphase sound generator

Country Status (1)

Country Link
JP (1) JPS52105706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61208100A (en) * 1985-03-13 1986-09-16 日本電信電話株式会社 Multi-phase voice output system
JPS62160496A (en) * 1986-01-10 1987-07-16 株式会社日立製作所 voice response recognition device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61208100A (en) * 1985-03-13 1986-09-16 日本電信電話株式会社 Multi-phase voice output system
JPS62160496A (en) * 1986-01-10 1987-07-16 株式会社日立製作所 voice response recognition device

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