JPS58171184A - Interphone device provided with monitor television - Google Patents

Interphone device provided with monitor television

Info

Publication number
JPS58171184A
JPS58171184A JP5412882A JP5412882A JPS58171184A JP S58171184 A JPS58171184 A JP S58171184A JP 5412882 A JP5412882 A JP 5412882A JP 5412882 A JP5412882 A JP 5412882A JP S58171184 A JPS58171184 A JP S58171184A
Authority
JP
Japan
Prior art keywords
coaxial cable
subordinate
master
monitor television
interphone
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
JP5412882A
Other languages
Japanese (ja)
Inventor
Toshio Abiko
Hironobu Inoue
Keiichi Mizuguchi
Yoshihiro Tanigawa
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 JP5412882A priority Critical patent/JPS58171184A/en
Publication of JPS58171184A publication Critical patent/JPS58171184A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed circuit television systems, i.e. systems in which the signal is not broadcast

Abstract

PURPOSE:To transmit various kinds of signal through one coaxial cable by transmitting signal between a subordinate device and a master device at frequency multiplex. CONSTITUTION:One coaxial cable l is connected between the subordinate device 2 and the master device 1 and video, voice, call, and control signals are transmitted at frequency multiplex by using carrier having different frequency through said coaxial cable l. The master device 1 discriminates and receives respective signals transmitted through the coaxial cable l, informs a visitor, displays a video taken by a television camera 3 on a monitor television 4, and outputs voice collected by a microphone 7 of the subordinate device 2.
JP5412882A 1982-03-31 1982-03-31 Interphone device provided with monitor television Pending JPS58171184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5412882A JPS58171184A (en) 1982-03-31 1982-03-31 Interphone device provided with monitor television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5412882A JPS58171184A (en) 1982-03-31 1982-03-31 Interphone device provided with monitor television

Publications (1)

Publication Number Publication Date
JPS58171184A true JPS58171184A (en) 1983-10-07

Family

ID=12961949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5412882A Pending JPS58171184A (en) 1982-03-31 1982-03-31 Interphone device provided with monitor television

Country Status (1)

Country Link
JP (1) JPS58171184A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174425A (en) * 1984-09-20 1986-04-16 Matsushita Electric Ind Co Ltd Power line carrier transmission reception network system
JPS61287392A (en) * 1985-06-13 1986-12-17 Shimizu Constr Co Ltd Information communication system for gathered dwelling houses
JPS62175082A (en) * 1986-01-28 1987-07-31 Sharp Corp Doorphone camera apparatus
JPS62257260A (en) * 1986-04-30 1987-11-09 Sharp Corp Power transmission equipment
JPS63156435A (en) * 1986-12-19 1988-06-29 Sharp Corp Video sound controlled power multiplexing transmission by balanced two-wire communication cable
JPH01103086A (en) * 1987-10-15 1989-04-20 Matsushita Electric Works Ltd Interphone set with monitor
JPH01147582U (en) * 1988-03-31 1989-10-12
JPH01311667A (en) * 1988-06-09 1989-12-15 Aiphone Co Ltd Television speech device
JPH02135855A (en) * 1988-11-16 1990-05-24 Matsushita Electric Ind Co Ltd Interphone equipment
JPH02135854A (en) * 1988-11-16 1990-05-24 Matsushita Electric Ind Co Ltd Interphone equipment
JPH02140048A (en) * 1988-11-19 1990-05-29 Matsushita Electric Works Ltd Television interphone system
JPH02196586A (en) * 1989-01-26 1990-08-03 Matsushita Electric Ind Co Ltd Television doorphone equipment
JPH02101653U (en) * 1989-01-31 1990-08-13

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108918A (en) * 1972-04-24 1974-10-16
JPS49131621A (en) * 1973-04-21 1974-12-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108918A (en) * 1972-04-24 1974-10-16
JPS49131621A (en) * 1973-04-21 1974-12-17

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174425A (en) * 1984-09-20 1986-04-16 Matsushita Electric Ind Co Ltd Power line carrier transmission reception network system
JPS61287392A (en) * 1985-06-13 1986-12-17 Shimizu Constr Co Ltd Information communication system for gathered dwelling houses
JPS62175082A (en) * 1986-01-28 1987-07-31 Sharp Corp Doorphone camera apparatus
JPS62257260A (en) * 1986-04-30 1987-11-09 Sharp Corp Power transmission equipment
JPS63156435A (en) * 1986-12-19 1988-06-29 Sharp Corp Video sound controlled power multiplexing transmission by balanced two-wire communication cable
JPH01103086A (en) * 1987-10-15 1989-04-20 Matsushita Electric Works Ltd Interphone set with monitor
JPH01147582U (en) * 1988-03-31 1989-10-12
JPH01311667A (en) * 1988-06-09 1989-12-15 Aiphone Co Ltd Television speech device
JPH02135855A (en) * 1988-11-16 1990-05-24 Matsushita Electric Ind Co Ltd Interphone equipment
JPH02135854A (en) * 1988-11-16 1990-05-24 Matsushita Electric Ind Co Ltd Interphone equipment
JPH02140048A (en) * 1988-11-19 1990-05-29 Matsushita Electric Works Ltd Television interphone system
JPH02196586A (en) * 1989-01-26 1990-08-03 Matsushita Electric Ind Co Ltd Television doorphone equipment
JPH02101653U (en) * 1989-01-31 1990-08-13

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