JPH0370941B2 - - Google Patents

Info

Publication number
JPH0370941B2
JPH0370941B2 JP59195288A JP19528884A JPH0370941B2 JP H0370941 B2 JPH0370941 B2 JP H0370941B2 JP 59195288 A JP59195288 A JP 59195288A JP 19528884 A JP19528884 A JP 19528884A JP H0370941 B2 JPH0370941 B2 JP H0370941B2
Authority
JP
Japan
Prior art keywords
command
worker
infrared
optical signal
transmitting
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.)
Expired - Lifetime
Application number
JP59195288A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6172427A (ja
Inventor
Katsuro Shinoda
Toshuki Kawaguchi
Hiroyuki Katsukawa
Kazumi Nakanishi
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP59195288A priority Critical patent/JPS6172427A/ja
Publication of JPS6172427A publication Critical patent/JPS6172427A/ja
Publication of JPH0370941B2 publication Critical patent/JPH0370941B2/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)
  • Arrangements For Transmission Of Measured Signals (AREA)
JP59195288A 1984-09-18 1984-09-18 携帯用通話及び位置報知装置 Granted JPS6172427A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59195288A JPS6172427A (ja) 1984-09-18 1984-09-18 携帯用通話及び位置報知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59195288A JPS6172427A (ja) 1984-09-18 1984-09-18 携帯用通話及び位置報知装置

Publications (2)

Publication Number Publication Date
JPS6172427A JPS6172427A (ja) 1986-04-14
JPH0370941B2 true JPH0370941B2 (esLanguage) 1991-11-11

Family

ID=16338658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59195288A Granted JPS6172427A (ja) 1984-09-18 1984-09-18 携帯用通話及び位置報知装置

Country Status (1)

Country Link
JP (1) JPS6172427A (esLanguage)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH039064U (esLanguage) * 1989-06-15 1991-01-29
US6097330A (en) * 1993-01-19 2000-08-01 Itt Corporation Optical friendly fire avoidance system
JPH08204642A (ja) * 1995-01-23 1996-08-09 Yuusu Eng Kk 通信用ヘッドセット
FR2797539A1 (fr) * 1999-08-13 2001-02-16 Cie Des Inv S De L Atelier De Systeme de communication par voie optique vers des terminaux passifs et emetteur pour un tel systeme
JP6473996B2 (ja) * 2014-06-12 2019-02-27 パナソニックＩｐマネジメント株式会社 作業員管理システム

Also Published As

Publication number Publication date
JPS6172427A (ja) 1986-04-14

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