JPS598462A - 共同電話機の相互通話方式 - Google Patents

共同電話機の相互通話方式

Info

Publication number
JPS598462A
JPS598462A JP57116671A JP11667182A JPS598462A JP S598462 A JPS598462 A JP S598462A JP 57116671 A JP57116671 A JP 57116671A JP 11667182 A JP11667182 A JP 11667182A JP S598462 A JPS598462 A JP S598462A
Authority
JP
Japan
Prior art keywords
circuit
wire
subscriber
voice
current supply
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
JP57116671A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0359633B2 (enExample
Inventor
Haruyuki Yoshino
吉野　春幸
Hideo Tatsuno
秀雄 龍野
Shigeru Hozumi
穂積　茂
Koichi Hasegawa
浩一 長谷川
Kaneichi Otsuki
大槻　兼市
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
Oki Electric Industry Co Ltd
NTT Inc
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 JP57116671A priority Critical patent/JPS598462A/ja
Publication of JPS598462A publication Critical patent/JPS598462A/ja
Publication of JPH0359633B2 publication Critical patent/JPH0359633B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP57116671A 1982-07-05 1982-07-05 共同電話機の相互通話方式 Granted JPS598462A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57116671A JPS598462A (ja) 1982-07-05 1982-07-05 共同電話機の相互通話方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57116671A JPS598462A (ja) 1982-07-05 1982-07-05 共同電話機の相互通話方式

Publications (2)

Publication Number Publication Date
JPS598462A true JPS598462A (ja) 1984-01-17
JPH0359633B2 JPH0359633B2 (enExample) 1991-09-11

Family

ID=14693008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57116671A Granted JPS598462A (ja) 1982-07-05 1982-07-05 共同電話機の相互通話方式

Country Status (1)

Country Link
JP (1) JPS598462A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938252A (en) * 1996-08-22 1999-08-17 Asmo Co., Ltd. Door member locking/unlocking apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735456A (en) * 1980-08-11 1982-02-26 Fujitsu Ltd Ring trip circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735456A (en) * 1980-08-11 1982-02-26 Fujitsu Ltd Ring trip circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938252A (en) * 1996-08-22 1999-08-17 Asmo Co., Ltd. Door member locking/unlocking apparatus

Also Published As

Publication number Publication date
JPH0359633B2 (enExample) 1991-09-11

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