JPS5631242A - Remote power supply optical communication unit - Google Patents
Remote power supply optical communication unitInfo
- Publication number
- JPS5631242A JPS5631242A JP10700579A JP10700579A JPS5631242A JP S5631242 A JPS5631242 A JP S5631242A JP 10700579 A JP10700579 A JP 10700579A JP 10700579 A JP10700579 A JP 10700579A JP S5631242 A JPS5631242 A JP S5631242A
- Authority
- JP
- Japan
- Prior art keywords
- photosignal
- signal
- electric
- equipment
- voltage
- 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
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
- H04B10/50—Transmitters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To omit the control line and make the diameter of the cable small to reduce electric power supply, by performing the open loop control of an electric power transmission means by the incoming intensity of the photosignal. CONSTITUTION:Electric power is supplied to stabilizing voltage equipment 203 and light modulator bias current control equipment 204 from variable output power control unit 217 through power source lines 228 and 229. Stabilizing voltage equipment 203 gives a fixed voltage to signal generator 202. The signal from signal generator 202 and the signal from light modulator bias current control equipment 204 are given to electric signal-photosignal converter 205 and are converted to a photosignal and are transmitted to photosignal-electric signal converter 213 through optical fiber cable 226. The electric signal obtained by photosignal-electric signal converter 213 is transmitted to receiving signal processing unit 214 and bias light quantity detector 215. The voltage obtained by bias light quantity detector 215 is compared with the reference voltage to control the output of variable output power control unit 217.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10700579A JPS5631242A (en) | 1979-08-22 | 1979-08-22 | Remote power supply optical communication unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10700579A JPS5631242A (en) | 1979-08-22 | 1979-08-22 | Remote power supply optical communication unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5631242A true JPS5631242A (en) | 1981-03-30 |
JPS6351421B2 JPS6351421B2 (en) | 1988-10-13 |
Family
ID=14448068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10700579A Granted JPS5631242A (en) | 1979-08-22 | 1979-08-22 | Remote power supply optical communication unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631242A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59223093A (en) * | 1983-06-01 | 1984-12-14 | Matsushita Electric Ind Co Ltd | Key telephone set |
JP2011228825A (en) * | 2010-04-16 | 2011-11-10 | Ntt Docomo Inc | Radio signal optical fiber transmission system |
JP2020077987A (en) * | 2018-11-08 | 2020-05-21 | Kaiフォトニクス株式会社 | Optical transmission/reception system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009118473A (en) * | 2007-10-19 | 2009-05-28 | Sumitomo Electric Ind Ltd | On-vehicle optical lan system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5458843A (en) * | 1977-10-19 | 1979-05-11 | Meidensha Electric Mfg Co Ltd | Prevention of overvoltage in no-break power unit |
-
1979
- 1979-08-22 JP JP10700579A patent/JPS5631242A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5458843A (en) * | 1977-10-19 | 1979-05-11 | Meidensha Electric Mfg Co Ltd | Prevention of overvoltage in no-break power unit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59223093A (en) * | 1983-06-01 | 1984-12-14 | Matsushita Electric Ind Co Ltd | Key telephone set |
JP2011228825A (en) * | 2010-04-16 | 2011-11-10 | Ntt Docomo Inc | Radio signal optical fiber transmission system |
JP2020077987A (en) * | 2018-11-08 | 2020-05-21 | Kaiフォトニクス株式会社 | Optical transmission/reception system |
Also Published As
Publication number | Publication date |
---|---|
JPS6351421B2 (en) | 1988-10-13 |
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