JPS54150006A - Interphone device - Google Patents

Interphone device

Info

Publication number
JPS54150006A
JPS54150006A JP5923378A JP5923378A JPS54150006A JP S54150006 A JPS54150006 A JP S54150006A JP 5923378 A JP5923378 A JP 5923378A JP 5923378 A JP5923378 A JP 5923378A JP S54150006 A JPS54150006 A JP S54150006A
Authority
JP
Japan
Prior art keywords
calling
information
subscribers
call
subscriber
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.)
Pending
Application number
JP5923378A
Other languages
Japanese (ja)
Inventor
Yoji Kosaka
Setsuo Mori
Tetsuo Furukawa
Nobuo Matoba
Yukio Sadate
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5923378A priority Critical patent/JPS54150006A/en
Publication of JPS54150006A publication Critical patent/JPS54150006A/en
Pending 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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

PURPOSE:To facilitate the wire saving as well as to hold the multiple functions by utilizing the microcomputer as a controller. CONSTITUTION:Units 21, 22 ... 2n are connected to the control, call and earth wires each in parallel, and controller 3 comprising microcomputers contains the input part for the called subscriber number, the self-office number, the mode setting information plus ON/OFF information of the hook switch as well as the output part for the selection information plus the display signal and external unit control information respectively. Then the channel is formed to the calling subscriber by the call given from the calling subscriber and based on the selected call into information among the selection information. At the same time, in case both the calling and called subscribers are under the busy state and the mode alteration setting information is supplied from either the calling or called subscriber, the calling right is transferred to other subscribers or the entering procedure is given to other subscribers. As a result, the wire saving is facilitated, at the same time holding the multiple functions.
JP5923378A 1978-05-17 1978-05-17 Interphone device Pending JPS54150006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5923378A JPS54150006A (en) 1978-05-17 1978-05-17 Interphone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5923378A JPS54150006A (en) 1978-05-17 1978-05-17 Interphone device

Publications (1)

Publication Number Publication Date
JPS54150006A true JPS54150006A (en) 1979-11-24

Family

ID=13107453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5923378A Pending JPS54150006A (en) 1978-05-17 1978-05-17 Interphone device

Country Status (1)

Country Link
JP (1) JPS54150006A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869159A (en) * 1981-10-20 1983-04-25 Yagi Antenna Co Ltd Mutual communicating device
JPS6167360A (en) * 1984-09-11 1986-04-07 Matsushita Electric Ind Co Ltd Interphone talking interruption system
JPS6276851A (en) * 1985-09-30 1987-04-08 Hitachi Elevator Eng & Serv Co Ltd Channel selection device for multi-station interphone
JPS635749U (en) * 1986-06-26 1988-01-14
CN102665145A (en) * 2012-04-26 2012-09-12 安徽大学 Underground wireless talkback communication system based on photon switching

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869159A (en) * 1981-10-20 1983-04-25 Yagi Antenna Co Ltd Mutual communicating device
JPS6167360A (en) * 1984-09-11 1986-04-07 Matsushita Electric Ind Co Ltd Interphone talking interruption system
JPS6276851A (en) * 1985-09-30 1987-04-08 Hitachi Elevator Eng & Serv Co Ltd Channel selection device for multi-station interphone
JPS635749U (en) * 1986-06-26 1988-01-14
CN102665145A (en) * 2012-04-26 2012-09-12 安徽大学 Underground wireless talkback communication system based on photon switching

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