JPS5439513A - Signal tone delivery system - Google Patents

Signal tone delivery system

Info

Publication number
JPS5439513A
JPS5439513A JP10582877A JP10582877A JPS5439513A JP S5439513 A JPS5439513 A JP S5439513A JP 10582877 A JP10582877 A JP 10582877A JP 10582877 A JP10582877 A JP 10582877A JP S5439513 A JPS5439513 A JP S5439513A
Authority
JP
Japan
Prior art keywords
delivery system
signal tone
signal delivery
signal
tone delivery
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
JP10582877A
Other languages
Japanese (ja)
Inventor
Naruhito Toyonaga
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 JP10582877A priority Critical patent/JPS5439513A/en
Publication of JPS5439513A publication Critical patent/JPS5439513A/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)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To increase the efficiency of usage of the signal delivery line by taking common the circuit transmitting signal tone, by performing interrupt connection from the signal delivery trunk separately provided with the communication transformer for the signal delivery to the lines during communication.
JP10582877A 1977-09-05 1977-09-05 Signal tone delivery system Pending JPS5439513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10582877A JPS5439513A (en) 1977-09-05 1977-09-05 Signal tone delivery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10582877A JPS5439513A (en) 1977-09-05 1977-09-05 Signal tone delivery system

Publications (1)

Publication Number Publication Date
JPS5439513A true JPS5439513A (en) 1979-03-27

Family

ID=14417906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10582877A Pending JPS5439513A (en) 1977-09-05 1977-09-05 Signal tone delivery system

Country Status (1)

Country Link
JP (1) JPS5439513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56101921A (en) * 1980-01-14 1981-08-14 Shuji Hattori Twisting mechanism in twisting frame or winder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56101921A (en) * 1980-01-14 1981-08-14 Shuji Hattori Twisting mechanism in twisting frame or winder
JPS636659B2 (en) * 1980-01-14 1988-02-10 Shuji Hatsutori

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