JPS5875337A - データ通信システム - Google Patents

データ通信システム

Info

Publication number
JPS5875337A
JPS5875337A JP56173007A JP17300781A JPS5875337A JP S5875337 A JPS5875337 A JP S5875337A JP 56173007 A JP56173007 A JP 56173007A JP 17300781 A JP17300781 A JP 17300781A JP S5875337 A JPS5875337 A JP S5875337A
Authority
JP
Japan
Prior art keywords
data
station
stations
signal
transmitted
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
Application number
JP56173007A
Other languages
English (en)
Japanese (ja)
Other versions
JPH043139B2 (OSRAM
Inventor
Yukio Nakada
幸男 中田
Kaoru Suda
薫 須田
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
Kokusai Denki Electric Inc
Original Assignee
Hitachi Ltd
Yagi Antenna Co 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, Yagi Antenna Co Ltd filed Critical Hitachi Ltd
Priority to JP56173007A priority Critical patent/JPS5875337A/ja
Publication of JPS5875337A publication Critical patent/JPS5875337A/ja
Publication of JPH043139B2 publication Critical patent/JPH043139B2/ja
Granted 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
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1149—Arrangements for indoor wireless networking of information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
JP56173007A 1981-10-30 1981-10-30 データ通信システム Granted JPS5875337A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56173007A JPS5875337A (ja) 1981-10-30 1981-10-30 データ通信システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56173007A JPS5875337A (ja) 1981-10-30 1981-10-30 データ通信システム

Publications (2)

Publication Number Publication Date
JPS5875337A true JPS5875337A (ja) 1983-05-07
JPH043139B2 JPH043139B2 (OSRAM) 1992-01-22

Family

ID=15952458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56173007A Granted JPS5875337A (ja) 1981-10-30 1981-10-30 データ通信システム

Country Status (1)

Country Link
JP (1) JPS5875337A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195850U (ja) * 1983-06-13 1984-12-26 日本電気株式会社 光通信デ−タエントリシステム
JPS60187146A (ja) * 1984-03-06 1985-09-24 Yagi Antenna Co Ltd 赤外線通信装置
JPS61121627A (ja) * 1984-11-19 1986-06-09 Hitachi Ltd 光伝送による端末接続装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5464901A (en) * 1977-11-02 1979-05-25 Hitachi Ltd Automatic opposing method using laser beam
JPS54149505A (en) * 1978-05-17 1979-11-22 Hitachi Ltd Signal transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5464901A (en) * 1977-11-02 1979-05-25 Hitachi Ltd Automatic opposing method using laser beam
JPS54149505A (en) * 1978-05-17 1979-11-22 Hitachi Ltd Signal transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195850U (ja) * 1983-06-13 1984-12-26 日本電気株式会社 光通信デ−タエントリシステム
JPS60187146A (ja) * 1984-03-06 1985-09-24 Yagi Antenna Co Ltd 赤外線通信装置
JPS61121627A (ja) * 1984-11-19 1986-06-09 Hitachi Ltd 光伝送による端末接続装置

Also Published As

Publication number Publication date
JPH043139B2 (OSRAM) 1992-01-22

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