JPS51124312A - Answering unit - Google Patents

Answering unit

Info

Publication number
JPS51124312A
JPS51124312A JP4942875A JP4942875A JPS51124312A JP S51124312 A JPS51124312 A JP S51124312A JP 4942875 A JP4942875 A JP 4942875A JP 4942875 A JP4942875 A JP 4942875A JP S51124312 A JPS51124312 A JP S51124312A
Authority
JP
Japan
Prior art keywords
answering unit
answering
unit
room
units
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
JP4942875A
Other languages
Japanese (ja)
Inventor
Keiji Nakazawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4942875A priority Critical patent/JPS51124312A/en
Publication of JPS51124312A publication Critical patent/JPS51124312A/en
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: For the answering units used in high-rise buildings such as hotels, to make it possible to select the answering unit in any desired room to call by connecting one front office unit and a plural number of room units.
COPYRIGHT: (C)1976,JPO&Japio
JP4942875A 1975-04-23 1975-04-23 Answering unit Pending JPS51124312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4942875A JPS51124312A (en) 1975-04-23 1975-04-23 Answering unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4942875A JPS51124312A (en) 1975-04-23 1975-04-23 Answering unit

Publications (1)

Publication Number Publication Date
JPS51124312A true JPS51124312A (en) 1976-10-29

Family

ID=12830815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4942875A Pending JPS51124312A (en) 1975-04-23 1975-04-23 Answering unit

Country Status (1)

Country Link
JP (1) JPS51124312A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141086A (en) * 1982-02-15 1983-08-22 Matsushita Electric Works Ltd Television interphone system
JPS5949081A (en) * 1982-09-14 1984-03-21 Matsushita Electric Works Ltd Television interphone system
JPS61182388A (en) * 1985-02-07 1986-08-15 Aihon Kk Television talking device
JPS63234792A (en) * 1987-03-24 1988-09-30 Izumi Soken Eng:Kk Unmanned information desk guiding system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141086A (en) * 1982-02-15 1983-08-22 Matsushita Electric Works Ltd Television interphone system
JPS5949081A (en) * 1982-09-14 1984-03-21 Matsushita Electric Works Ltd Television interphone system
JPS61182388A (en) * 1985-02-07 1986-08-15 Aihon Kk Television talking device
JPS63234792A (en) * 1987-03-24 1988-09-30 Izumi Soken Eng:Kk Unmanned information desk guiding system

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