JPS58198948A - 電話機用ト−ンリンガ回路 - Google Patents

電話機用ト−ンリンガ回路

Info

Publication number
JPS58198948A
JPS58198948A JP8276982A JP8276982A JPS58198948A JP S58198948 A JPS58198948 A JP S58198948A JP 8276982 A JP8276982 A JP 8276982A JP 8276982 A JP8276982 A JP 8276982A JP S58198948 A JPS58198948 A JP S58198948A
Authority
JP
Japan
Prior art keywords
circuit
sounder
voltage
sounding
digital
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
JP8276982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6351624B2 (OSRAM
Inventor
Shinji Nishimura
眞次 西村
Yutaka Nishino
豊 西野
Makoto Yoshitoshi
吉利　誠
Kaneyuki Nishihara
西原　兼幸
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.)
NTT Inc
Original Assignee
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8276982A priority Critical patent/JPS58198948A/ja
Publication of JPS58198948A publication Critical patent/JPS58198948A/ja
Publication of JPS6351624B2 publication Critical patent/JPS6351624B2/ja
Granted 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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP8276982A 1982-05-17 1982-05-17 電話機用ト−ンリンガ回路 Granted JPS58198948A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8276982A JPS58198948A (ja) 1982-05-17 1982-05-17 電話機用ト−ンリンガ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8276982A JPS58198948A (ja) 1982-05-17 1982-05-17 電話機用ト−ンリンガ回路

Publications (2)

Publication Number Publication Date
JPS58198948A true JPS58198948A (ja) 1983-11-19
JPS6351624B2 JPS6351624B2 (OSRAM) 1988-10-14

Family

ID=13783637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8276982A Granted JPS58198948A (ja) 1982-05-17 1982-05-17 電話機用ト−ンリンガ回路

Country Status (1)

Country Link
JP (1) JPS58198948A (OSRAM)

Also Published As

Publication number Publication date
JPS6351624B2 (OSRAM) 1988-10-14

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