JPH0357668B2 - - Google Patents

Info

Publication number
JPH0357668B2
JPH0357668B2 JP59056169A JP5616984A JPH0357668B2 JP H0357668 B2 JPH0357668 B2 JP H0357668B2 JP 59056169 A JP59056169 A JP 59056169A JP 5616984 A JP5616984 A JP 5616984A JP H0357668 B2 JPH0357668 B2 JP H0357668B2
Authority
JP
Japan
Prior art keywords
circuit
amplifier
hold
speaker
transmitting
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.)
Expired - Lifetime
Application number
JP59056169A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60200676A (ja
Inventor
Yutaka Nishino
Akihiro Kobayashi
Koji Nishio
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Iwasaki Tsushinki KK filed Critical Toshiba Corp
Priority to JP5616984A priority Critical patent/JPS60200676A/ja
Publication of JPS60200676A publication Critical patent/JPS60200676A/ja
Publication of JPH0357668B2 publication Critical patent/JPH0357668B2/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)
  • Devices For Supply Of Signal Current (AREA)
JP5616984A 1984-03-26 1984-03-26 保留音送出付電話機回路 Granted JPS60200676A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5616984A JPS60200676A (ja) 1984-03-26 1984-03-26 保留音送出付電話機回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5616984A JPS60200676A (ja) 1984-03-26 1984-03-26 保留音送出付電話機回路

Publications (2)

Publication Number Publication Date
JPS60200676A JPS60200676A (ja) 1985-10-11
JPH0357668B2 true JPH0357668B2 (en]) 1991-09-02

Family

ID=13019593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5616984A Granted JPS60200676A (ja) 1984-03-26 1984-03-26 保留音送出付電話機回路

Country Status (1)

Country Link
JP (1) JPS60200676A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6292645A (ja) * 1985-10-18 1987-04-28 Iwatsu Electric Co Ltd 電話機回路
JPS6481557A (en) * 1987-09-24 1989-03-27 Oki Electric Ind Co Ltd Automobile telephone set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748757U (en]) * 1980-09-03 1982-03-18

Also Published As

Publication number Publication date
JPS60200676A (ja) 1985-10-11

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term