JPH0255981B2 - - Google Patents

Info

Publication number
JPH0255981B2
JPH0255981B2 JP56205075A JP20507581A JPH0255981B2 JP H0255981 B2 JPH0255981 B2 JP H0255981B2 JP 56205075 A JP56205075 A JP 56205075A JP 20507581 A JP20507581 A JP 20507581A JP H0255981 B2 JPH0255981 B2 JP H0255981B2
Authority
JP
Japan
Prior art keywords
circuit
semiconductor switch
signal
gate
delay
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
JP56205075A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58106938A (ja
Inventor
Hiroyasu Uehara
Mutsuo Kataoka
Yasunobu Inabe
Kanji Mukai
Mitsuo Matsuyama
Kenzo Hasegawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP20507581A priority Critical patent/JPS58106938A/ja
Publication of JPS58106938A publication Critical patent/JPS58106938A/ja
Publication of JPH0255981B2 publication Critical patent/JPH0255981B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing
    • H04M3/06—Calling substations, e.g. by ringing the calling signal being supplied from the subscriber's line circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Thyristor Switches And Gates (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP20507581A 1981-12-21 1981-12-21 呼出し信号送出回路 Granted JPS58106938A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20507581A JPS58106938A (ja) 1981-12-21 1981-12-21 呼出し信号送出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20507581A JPS58106938A (ja) 1981-12-21 1981-12-21 呼出し信号送出回路

Publications (2)

Publication Number Publication Date
JPS58106938A JPS58106938A (ja) 1983-06-25
JPH0255981B2 true JPH0255981B2 (enrdf_load_stackoverflow) 1990-11-28

Family

ID=16501004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20507581A Granted JPS58106938A (ja) 1981-12-21 1981-12-21 呼出し信号送出回路

Country Status (1)

Country Link
JP (1) JPS58106938A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS58106938A (ja) 1983-06-25

Similar Documents

Publication Publication Date Title
EP0651541B1 (en) Telephone subscriber circuit with galvanic isolating element for driving the on/off states of a telephone line
US3867567A (en) Electronic data terminal interface
US3881069A (en) Telephone call loudspeaker monitoring and relay control circuit
US3683118A (en) Interruptor for ringing signals from automatic telephone exchanges
JPH0255981B2 (enrdf_load_stackoverflow)
US5307403A (en) Telephone branch line transmission circuit with blocking capacitor
US3941941A (en) Relayless switching circuit for application of ringing signals
JPH0255982B2 (enrdf_load_stackoverflow)
US6212365B1 (en) Push-to-talk interface circuit for a radio communication system
US4516245A (en) Digital span transmission circuit
JPS58207755A (ja) 極性反転検知回路
US3315090A (en) Switching circuits utilizing opposite conductivity transistors
US3235753A (en) Serial driven two transistor switch circuit
US3239693A (en) Bilateral electronic gate
SU1150741A1 (ru) Формирователь спаренных импульсов
JPS58106937A (ja) 呼出し信号の送出方法
US3529183A (en) Complementary transistor control circuit
JPH0698574A (ja) モータ駆動回路
JP2997560B2 (ja) 網制御装置
JP2708787B2 (ja) 回線閉結用スイッチ回路
JP2897818B2 (ja) ループ電流発生回路および回線終端装置
US3484558A (en) Pulse corrector circuit for single frequency signaling system
JP3439362B2 (ja) 極性反転回路
US3773970A (en) Teleprinter subscriber station apparatus for single current operation with back potential at the subscriber station
JPH04358493A (ja) ２極性信号ドライブ／レシーブ方式