JPS57127343A - Talking system of optical fiber interphone - Google Patents

Talking system of optical fiber interphone

Info

Publication number
JPS57127343A
JPS57127343A JP56012353A JP1235381A JPS57127343A JP S57127343 A JPS57127343 A JP S57127343A JP 56012353 A JP56012353 A JP 56012353A JP 1235381 A JP1235381 A JP 1235381A JP S57127343 A JPS57127343 A JP S57127343A
Authority
JP
Japan
Prior art keywords
station
optical fiber
battery
interphone
charged
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
JP56012353A
Other languages
Japanese (ja)
Inventor
Kuninori Okamoto
Yoshiaki Kanbe
Yasushi Mori
Koji Yamashita
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 JP56012353A priority Critical patent/JPS57127343A/en
Publication of JPS57127343A publication Critical patent/JPS57127343A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/806—Arrangements for feeding power
    • H04B10/807—Optical power feeding, i.e. transmitting power using an optical signal

Abstract

PURPOSE:To enhance the cost performance and attain a good talking state, by applying the power supply to a slave station of a terminal device with a secondary battery which is charged by a solar battery and actuating only an IC operation amplifier at the terminal device side during a waiting time. CONSTITUTION:A master station B is connected to a slave station A via an optical fiber C, and a secondary battery 2 which is charged by a solar battery 1 is set at the station A. During a waiting time only an IC operation amplifier 5 is actuated by the battery 2. While in a calling time, a switch circuit 4 connected to the output side of the amplifier 5 is turned on with the signal code transmitted from the station B, and the voltage of the battery 2 is applied to a speaker 8 and a mike 7 of the station A. In such a way, a good talking state can be maintained with used of an optical fiber.
JP56012353A 1981-01-30 1981-01-30 Talking system of optical fiber interphone Pending JPS57127343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012353A JPS57127343A (en) 1981-01-30 1981-01-30 Talking system of optical fiber interphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012353A JPS57127343A (en) 1981-01-30 1981-01-30 Talking system of optical fiber interphone

Publications (1)

Publication Number Publication Date
JPS57127343A true JPS57127343A (en) 1982-08-07

Family

ID=11802910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012353A Pending JPS57127343A (en) 1981-01-30 1981-01-30 Talking system of optical fiber interphone

Country Status (1)

Country Link
JP (1) JPS57127343A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200541A (en) * 1983-04-26 1984-11-13 Mitsubishi Electric Corp Optical transmitter
JPS60199172A (en) * 1984-03-23 1985-10-08 シャープ株式会社 Electric lock apparatus
JPS6277788A (en) * 1985-09-30 1987-04-09 Sumitomo Electric Ind Ltd Tv signal transmission system and cable for transmitting tv signal
JPS62161247A (en) * 1986-01-10 1987-07-17 Aihon Kk Interphone equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200541A (en) * 1983-04-26 1984-11-13 Mitsubishi Electric Corp Optical transmitter
JPS60199172A (en) * 1984-03-23 1985-10-08 シャープ株式会社 Electric lock apparatus
JPS6277788A (en) * 1985-09-30 1987-04-09 Sumitomo Electric Ind Ltd Tv signal transmission system and cable for transmitting tv signal
JPS62161247A (en) * 1986-01-10 1987-07-17 Aihon Kk Interphone equipment

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