JPS6151819B2 - - Google Patents

Info

Publication number
JPS6151819B2
JPS6151819B2 JP9729780A JP9729780A JPS6151819B2 JP S6151819 B2 JPS6151819 B2 JP S6151819B2 JP 9729780 A JP9729780 A JP 9729780A JP 9729780 A JP9729780 A JP 9729780A JP S6151819 B2 JPS6151819 B2 JP S6151819B2
Authority
JP
Japan
Prior art keywords
station
frequency
control
interfon
carrier frequency
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
JP9729780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5723355A (en
Inventor
Hitoshi Fukagawa
Mitsuru Wada
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP9729780A priority Critical patent/JPS5723355A/ja
Publication of JPS5723355A publication Critical patent/JPS5723355A/ja
Publication of JPS6151819B2 publication Critical patent/JPS6151819B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/027—Frequency division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP9729780A 1980-07-15 1980-07-15 Multi-station call equipment Granted JPS5723355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9729780A JPS5723355A (en) 1980-07-15 1980-07-15 Multi-station call equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9729780A JPS5723355A (en) 1980-07-15 1980-07-15 Multi-station call equipment

Publications (2)

Publication Number Publication Date
JPS5723355A JPS5723355A (en) 1982-02-06
JPS6151819B2 true JPS6151819B2 (id) 1986-11-11

Family

ID=14188555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9729780A Granted JPS5723355A (en) 1980-07-15 1980-07-15 Multi-station call equipment

Country Status (1)

Country Link
JP (1) JPS5723355A (id)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136631U (id) * 1989-04-20 1990-11-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136631U (id) * 1989-04-20 1990-11-14

Also Published As

Publication number Publication date
JPS5723355A (en) 1982-02-06

Similar Documents

Publication Publication Date Title
US4188511A (en) Multi-link telephone intercom system
JPS6151819B2 (id)
CA1242263A (en) Switching system with video switching matrix
US4511766A (en) Key telephone system signalling and control arrangement
US2101224A (en) Privacy system
US4511767A (en) Key telephone system signalling and control arrangement
EP0155740A2 (en) Loudspeaking telephone instrument
JPS6158341A (ja) 無線端末機器接続制御方式
CA1200034A (en) Key telephone system signalling and control arrangement
JPS58151765A (ja) デイジタル電話機
JPH04274648A (ja) 電話システムにおける複数者間通話装置
SU1732492A1 (ru) Устройство передачи речевой и цифровой информации по телефонным лини м св зи
JPS5818037B2 (ja) ボタン電話機
SU1197150A1 (ru) Устройство дл служебно-диспетчерской св зи
JPS58133094A (ja) ボタン電話装置
JPH0210927A (ja) 無線回線制御方式
JPH0325080B2 (id)
JP3017506B2 (ja) Ｉインタフェース用宅内通信方法
JPS58151764A (ja) デイジタル電話機
JPH04150443A (ja) コードレスボタン電話装置の回線使用状態情報伝達方式
JPH08228223A (ja) 多局アダプタ
Ludwig Local Area Radio Intercom Networks (LARIN)
JPS61218294A (ja) ボタン電話装置間接続方式
JPS6175696A (ja) 扱者トランク回路
JPS60180252A (ja) デ−タ通信システム