DE69311345T2 - Einrichtung zur leitungsungebundenen signalübertragung mittels licht - Google Patents

Einrichtung zur leitungsungebundenen signalübertragung mittels licht

Info

Publication number
DE69311345T2
DE69311345T2 DE69311345T DE69311345T DE69311345T2 DE 69311345 T2 DE69311345 T2 DE 69311345T2 DE 69311345 T DE69311345 T DE 69311345T DE 69311345 T DE69311345 T DE 69311345T DE 69311345 T2 DE69311345 T2 DE 69311345T2
Authority
DE
Germany
Prior art keywords
light
signal transmission
wired signal
wired
transmission
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 - Fee Related
Application number
DE69311345T
Other languages
English (en)
Other versions
DE69311345D1 (de
Inventor
Stephen Anthony Cassidy
Peter Paul Smyth
Douglas Lawrence Williams
Trevor Keith White
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE69311345D1 publication Critical patent/DE69311345D1/de
Application granted granted Critical
Publication of DE69311345T2 publication Critical patent/DE69311345T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE69311345T 1992-07-28 1993-07-28 Einrichtung zur leitungsungebundenen signalübertragung mittels licht Expired - Fee Related DE69311345T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92306885 1992-07-28
PCT/GB1993/001590 WO1994002997A1 (en) 1992-07-28 1993-07-28 Free space optical communication system

Publications (2)

Publication Number Publication Date
DE69311345D1 DE69311345D1 (de) 1997-07-10
DE69311345T2 true DE69311345T2 (de) 1997-11-06

Family

ID=8211450

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69311345T Expired - Fee Related DE69311345T2 (de) 1992-07-28 1993-07-28 Einrichtung zur leitungsungebundenen signalübertragung mittels licht

Country Status (6)

Country Link
US (1) US5748813A (de)
EP (1) EP0653129B1 (de)
AU (1) AU4717393A (de)
DE (1) DE69311345T2 (de)
ES (1) ES2103484T3 (de)
WO (1) WO1994002997A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3461653B2 (ja) * 1995-10-19 2003-10-27 富士ゼロックス株式会社 光ファイバ伝送と自由空間伝送に共用可能な光送受信器および光通信ネットワーク
US6931183B2 (en) 1996-03-29 2005-08-16 Dominion Lasercom, Inc. Hybrid electro-optic cable for free space laser antennas
US6348986B1 (en) 1996-03-29 2002-02-19 Dominion Lasercom. Inc. Wireless fiber-coupled telecommunication systems based on atmospheric transmission of laser signals
US6868237B2 (en) 1998-04-24 2005-03-15 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
US6239888B1 (en) * 1998-04-24 2001-05-29 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
CN1318236A (zh) * 1998-07-16 2001-10-17 特拉比姆网络公司 通过自由空间发送和接收数据的光通信系统
US6763195B1 (en) 2000-01-13 2004-07-13 Lightpointe Communications, Inc. Hybrid wireless optical and radio frequency communication link
AU2002255685A1 (en) * 2001-03-09 2002-09-24 Lightpointe Communications, Inc. Free space optical communication network
US6889009B2 (en) * 2001-04-16 2005-05-03 Lightpointe Communications, Inc. Integrated environmental control and management system for free-space optical communication systems
US20020171896A1 (en) * 2001-05-21 2002-11-21 Lightpointe Communications, Inc. Free-space optical communication system employing wavelength conversion
DE60218625T2 (de) * 2002-02-11 2007-06-28 Alcatel Lucent Schutzverfahren und Schnittstelle für fiberoptische Systeme
US7583642B2 (en) * 2002-09-10 2009-09-01 Harris Corporation Communication system providing hybrid optical/wireless communications and related methods
DE60316178T2 (de) * 2002-10-24 2008-06-05 Nakagawa Laboratories, Inc. Kommunikationsvorrichtung mit beleuchtungslicht
US20040120717A1 (en) * 2002-12-18 2004-06-24 Lightpointe Communications, Inc. Extended source free-space optical communication system
JP2005284250A (ja) * 2004-03-04 2005-10-13 Nakagawa Kenkyusho:Kk 通信システム及び漏洩光ファイバ
EP2056492A4 (de) * 2006-08-07 2016-07-06 Hamamatsu Photonics Kk Mobiles optisches kommunikationssystem und verfahren zur mobilen optischen kommunikation
US9590733B2 (en) * 2009-07-24 2017-03-07 Corning Optical Communications LLC Location tracking using fiber optic array cables and related systems and methods
GB0915163D0 (en) 2009-09-01 2009-10-07 Board A communication system
WO2018102922A1 (en) 2016-12-06 2018-06-14 Lensvector Inc. Liquid crystal beam control
GB201706127D0 (en) * 2017-04-18 2017-05-31 Purelifi Ltd Luminaire system for optical wireless communication
US10277316B1 (en) 2017-05-01 2019-04-30 The United States Of America As Represented By The Secretary Of The Air Force Free space optical headset
US11234078B1 (en) * 2019-06-27 2022-01-25 Apple Inc. Optical audio transmission from source device to wireless earphones

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5495104A (en) * 1978-01-12 1979-07-27 Mitsubishi Electric Corp Optical fiber leakage communication unit
JPS5599855A (en) * 1979-01-25 1980-07-30 Japanese National Railways<Jnr> Mobile body communication system
JPS572005A (en) * 1980-06-05 1982-01-07 Hitachi Cable Ltd Leakage optical fiber
GB2169464B (en) * 1985-01-09 1988-09-21 Stc Plc Optical fibre transmission systems
JP2629769B2 (ja) * 1988-02-02 1997-07-16 旭硝子株式会社 面状照明装置とその用途
US4929050A (en) * 1988-10-31 1990-05-29 Unisys Corporation Traveling wave fiber optic interferometric sensor and method of polarization poling fiber optic
DE3915977A1 (de) * 1989-05-17 1990-11-29 Standard Elektrik Lorenz Ag Vorrichtung zur uebertragung eines optischen signales

Also Published As

Publication number Publication date
DE69311345D1 (de) 1997-07-10
WO1994002997A1 (en) 1994-02-03
EP0653129A1 (de) 1995-05-17
ES2103484T3 (es) 1997-09-16
US5748813A (en) 1998-05-05
AU4717393A (en) 1994-02-14
EP0653129B1 (de) 1997-06-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee