JPH0137893B2 - - Google Patents

Info

Publication number
JPH0137893B2
JPH0137893B2 JP21429781A JP21429781A JPH0137893B2 JP H0137893 B2 JPH0137893 B2 JP H0137893B2 JP 21429781 A JP21429781 A JP 21429781A JP 21429781 A JP21429781 A JP 21429781A JP H0137893 B2 JPH0137893 B2 JP H0137893B2
Authority
JP
Japan
Prior art keywords
circuit
transistor
incoming call
call detection
diode bridge
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
Application number
JP21429781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58116849A (ja
Inventor
Yasunobu Nakayama
Taiji Sato
Kyoichi Nakakawara
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
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP21429781A priority Critical patent/JPS58116849A/ja
Publication of JPS58116849A publication Critical patent/JPS58116849A/ja
Publication of JPH0137893B2 publication Critical patent/JPH0137893B2/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
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP21429781A 1981-12-29 1981-12-29 電話機のインタフエ−ス回路 Granted JPS58116849A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21429781A JPS58116849A (ja) 1981-12-29 1981-12-29 電話機のインタフエ−ス回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21429781A JPS58116849A (ja) 1981-12-29 1981-12-29 電話機のインタフエ−ス回路

Publications (2)

Publication Number Publication Date
JPS58116849A JPS58116849A (ja) 1983-07-12
JPH0137893B2 true JPH0137893B2 (enrdf_load_stackoverflow) 1989-08-10

Family

ID=16653393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21429781A Granted JPS58116849A (ja) 1981-12-29 1981-12-29 電話機のインタフエ−ス回路

Country Status (1)

Country Link
JP (1) JPS58116849A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186743U (ja) * 1984-05-21 1985-12-11 株式会社田村電機製作所 線路結合回路
JPS6123453A (ja) * 1984-07-11 1986-01-31 Matsushita Electric Ind Co Ltd 局線とのインタ−フエ−ス回路
JPH0753321Y2 (ja) * 1989-08-08 1995-12-06 日通工株式会社 呼出信号検出回路
JPH0560189A (ja) * 1991-08-27 1993-03-09 Komatsu Ltd 遊星歯車式変速機

Also Published As

Publication number Publication date
JPS58116849A (ja) 1983-07-12

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