JPS5744390A - Priority call controller of multistation inter-phone - Google Patents

Priority call controller of multistation inter-phone

Info

Publication number
JPS5744390A
JPS5744390A JP11999680A JP11999680A JPS5744390A JP S5744390 A JPS5744390 A JP S5744390A JP 11999680 A JP11999680 A JP 11999680A JP 11999680 A JP11999680 A JP 11999680A JP S5744390 A JPS5744390 A JP S5744390A
Authority
JP
Japan
Prior art keywords
call
station
stations
interphone
central controller
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
JP11999680A
Other languages
Japanese (ja)
Other versions
JPS622498B2 (en
Inventor
Motoharu Terada
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 JP11999680A priority Critical patent/JPS5744390A/en
Publication of JPS5744390A publication Critical patent/JPS5744390A/en
Publication of JPS622498B2 publication Critical patent/JPS622498B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

PURPOSE:To give the priority of calling to a station which first makes an answer to an interphone call signal from a central controller, by keeping the station in a call state and by releasing other stations from call connection waiting states. CONSTITUTION:Interphones are connected to plural terminal circuits allotted the same address to constitute interphone stations. When the priority of call is given to a station which first responds an interphone call signal from a central controller, the output of the flip-flop 9 of the station where a press-to-talk switch 8 is pushed first is inverted and a reset signal, even if sent from the central controller, is intercepted to keep a call state, but other stations are released from the responce waiting states of call circuit connecting circuits 7 by said reset signal, thereby disabling them to call.
JP11999680A 1980-08-30 1980-08-30 Priority call controller of multistation inter-phone Granted JPS5744390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11999680A JPS5744390A (en) 1980-08-30 1980-08-30 Priority call controller of multistation inter-phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11999680A JPS5744390A (en) 1980-08-30 1980-08-30 Priority call controller of multistation inter-phone

Publications (2)

Publication Number Publication Date
JPS5744390A true JPS5744390A (en) 1982-03-12
JPS622498B2 JPS622498B2 (en) 1987-01-20

Family

ID=14775311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11999680A Granted JPS5744390A (en) 1980-08-30 1980-08-30 Priority call controller of multistation inter-phone

Country Status (1)

Country Link
JP (1) JPS5744390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972267A (en) * 1982-10-18 1984-04-24 Sanii Denshi Kk Communication system of fm carrier type interphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972267A (en) * 1982-10-18 1984-04-24 Sanii Denshi Kk Communication system of fm carrier type interphone

Also Published As

Publication number Publication date
JPS622498B2 (en) 1987-01-20

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