JPS5389601A - Light communication unit - Google Patents

Light communication unit

Info

Publication number
JPS5389601A
JPS5389601A JP390877A JP390877A JPS5389601A JP S5389601 A JPS5389601 A JP S5389601A JP 390877 A JP390877 A JP 390877A JP 390877 A JP390877 A JP 390877A JP S5389601 A JPS5389601 A JP S5389601A
Authority
JP
Japan
Prior art keywords
light communication
communication unit
light
reliability
life
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
JP390877A
Other languages
Japanese (ja)
Inventor
Kazuhiro Sano
Hiroyuki Kudo
Yoshiteru Miki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP390877A priority Critical patent/JPS5389601A/en
Publication of JPS5389601A publication Critical patent/JPS5389601A/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
    • H04B10/50—Transmitters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To make the life of light emitting elements long and improve the reliability of light communication system by using a coding means.
JP390877A 1977-01-19 1977-01-19 Light communication unit Pending JPS5389601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP390877A JPS5389601A (en) 1977-01-19 1977-01-19 Light communication unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP390877A JPS5389601A (en) 1977-01-19 1977-01-19 Light communication unit

Publications (1)

Publication Number Publication Date
JPS5389601A true JPS5389601A (en) 1978-08-07

Family

ID=11570276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP390877A Pending JPS5389601A (en) 1977-01-19 1977-01-19 Light communication unit

Country Status (1)

Country Link
JP (1) JPS5389601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912524A (en) * 1986-12-17 1990-03-27 Hitachi, Ltd. Digital signal transmission system having conversion means for reducing the light emission time of a light emitting diode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912524A (en) * 1986-12-17 1990-03-27 Hitachi, Ltd. Digital signal transmission system having conversion means for reducing the light emission time of a light emitting diode

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