JPS58106938A - 呼出し信号送出回路 - Google Patents

呼出し信号送出回路

Info

Publication number
JPS58106938A
JPS58106938A JP20507581A JP20507581A JPS58106938A JP S58106938 A JPS58106938 A JP S58106938A JP 20507581 A JP20507581 A JP 20507581A JP 20507581 A JP20507581 A JP 20507581A JP S58106938 A JPS58106938 A JP S58106938A
Authority
JP
Japan
Prior art keywords
circuit
semiconductor switch
signal
current
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.)
Granted
Application number
JP20507581A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0255981B2 (enrdf_load_stackoverflow
Inventor
Hiroyasu Uehara
上原　啓靖
Mutsuo Kataoka
片岡　睦雄
Yasunobu Inabe
井鍋　泰宣
Kanji Mukai
向井　幹二
Mitsuo Matsuyama
光男 松山
Kenzo Hasegawa
長谷川　賢造
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu 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 true JPS58106938A (ja) 1983-06-25
JPH0255981B2 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
JPH0255981B2 (enrdf_load_stackoverflow) 1990-11-28

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