DE69719573D1 - Verfahren und vorrichtung zur verbesserten schnurrlosen optischen kommunikation - Google Patents

Verfahren und vorrichtung zur verbesserten schnurrlosen optischen kommunikation

Info

Publication number
DE69719573D1
DE69719573D1 DE69719573T DE69719573T DE69719573D1 DE 69719573 D1 DE69719573 D1 DE 69719573D1 DE 69719573 T DE69719573 T DE 69719573T DE 69719573 T DE69719573 T DE 69719573T DE 69719573 D1 DE69719573 D1 DE 69719573D1
Authority
DE
Germany
Prior art keywords
optical communication
improved cordless
cordless optical
improved
communication
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
DE69719573T
Other languages
English (en)
Other versions
DE69719573T2 (de
Inventor
R Gfeller
Walter Hirt
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE69719573D1 publication Critical patent/DE69719573D1/de
Application granted granted Critical
Publication of DE69719573T2 publication Critical patent/DE69719573T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation
    • 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
    • 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
    • H04B10/1143—Bidirectional transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0614—Systems characterised by the synchronising information used the synchronising signal being characterised by the amplitude, duration or polarity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • H04L5/1446—Negotiation of transmission parameters prior to communication of transmission speed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/046—Speed or phase control by synchronisation signals using special codes as synchronising signal using a dotting sequence
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
DE69719573T 1997-11-18 1997-11-18 Verfahren und vorrichtung zur verbesserten schnurrlosen optischen kommunikation Expired - Lifetime DE69719573T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB1997/001461 WO1999026364A1 (en) 1997-11-18 1997-11-18 Method for improved wireless optical communication and frames for use in a wireless optical communication system

Publications (2)

Publication Number Publication Date
DE69719573D1 true DE69719573D1 (de) 2003-04-10
DE69719573T2 DE69719573T2 (de) 2003-12-11

Family

ID=11004633

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69719573T Expired - Lifetime DE69719573T2 (de) 1997-11-18 1997-11-18 Verfahren und vorrichtung zur verbesserten schnurrlosen optischen kommunikation

Country Status (7)

Country Link
US (1) US6643469B1 (de)
EP (1) EP1034626B1 (de)
JP (1) JP3373842B2 (de)
KR (1) KR100331670B1 (de)
DE (1) DE69719573T2 (de)
TW (1) TW408529B (de)
WO (1) WO1999026364A1 (de)

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EP1089466A1 (de) * 1999-09-28 2001-04-04 Lucent Technologies Inc. Infrarotverbindung
DE19959387A1 (de) * 1999-12-09 2001-06-13 Philipp Paul Spangenberg Verfahren zur Kommunikation zwischen einer elektronischen Recheneinheit mit ausreichend hoher Speicherkapazität zur globalen Datenverwaltung im System und beliebig vielen Personal Digital Assistants über Infrarotsignal
FR2805105B1 (fr) * 2000-02-15 2003-05-16 France Telecom Procede d'etablissement d'une communication optique bidirectionnelle entre un equipement de centre et un equipement distant
DE10007602A1 (de) * 2000-02-18 2001-08-30 Siemens Ag Verfahren zum Übertragen von Paketdateninformationen in einem Funk-Kommunikationssystem
US7366103B2 (en) * 2000-08-18 2008-04-29 Nortel Networks Limited Seamless roaming options in an IEEE 802.11 compliant network
US7308279B1 (en) 2000-08-18 2007-12-11 Nortel Networks Limited Dynamic power level control on transmitted messages in a wireless LAN
US7154854B1 (en) * 2000-08-18 2006-12-26 Nortel Networks Limited Automatic distribution of RTS and frag thresholds
US7280495B1 (en) 2000-08-18 2007-10-09 Nortel Networks Limited Reliable broadcast protocol in a wireless local area network
US7339892B1 (en) 2000-08-18 2008-03-04 Nortel Networks Limited System and method for dynamic control of data packet fragmentation threshold in a wireless network
JP2002290246A (ja) * 2001-03-28 2002-10-04 Hitachi Kokusai Electric Inc 送受信機
US20020172186A1 (en) 2001-04-09 2002-11-21 Peter Larsson Instantaneous joint transmit power control and link adaptation for RTS/CTS based channel access
CN1161901C (zh) * 2001-05-14 2004-08-11 华为技术有限公司 光通信系统中上行高速数据的同步接收方法与电路
US7023876B2 (en) 2001-07-09 2006-04-04 Quantum Corporation Point-to-point protocol
DE60116646T2 (de) * 2001-07-09 2006-08-10 Nokia Corp. Paketdatenübertragung mittels variabler dqpsk modulation
US7106733B2 (en) * 2002-03-20 2006-09-12 Intel Corporation Method and apparatus for network header compression
DE10220723B4 (de) * 2002-05-10 2005-07-28 Diehl Ako Stiftung & Co. Kg Verfahren zur drahtlosen Datenübertragung
DE10223376A1 (de) * 2002-05-25 2003-12-11 Efkon Ag Graz Verfahren und Vorrichtung zur optischen Datenübertragung
US7742443B2 (en) * 2002-05-28 2010-06-22 Maarten Menzo Wentink Transmit power management in shared-communications channel networks
JP4108495B2 (ja) * 2003-01-31 2008-06-25 松下電器産業株式会社 局発見処理方法および無線通信装置
DE60301384T2 (de) 2003-02-28 2006-03-09 Alcatel Verfahren zur Übertragung von Paketen mit zwei verschiedenen Leitungscodes und geeigneter Sender und Empfänger
US7203207B2 (en) * 2003-05-30 2007-04-10 Motorola, Inc. Method for selecting an operating mode based on a detected synchronization pattern
DE102004013837B4 (de) 2004-03-16 2009-03-19 Atmel Germany Gmbh Verfahren zur drahtlosen Datenübertragung
TWI273790B (en) * 2004-08-27 2007-02-11 Ali Corp Method to save power for wireless network communication
CN1832378B (zh) * 2005-03-11 2011-05-11 大唐移动通信设备有限公司 宽带tdd系统使用高效高性能帧结构进行无线传输的方法
US9246711B2 (en) * 2006-08-30 2016-01-26 Microsoft Technology Licensing, Llc Wireless mesh networking with multiple simultaneous transmissions by nearby network nodes
US7983230B1 (en) * 2007-07-11 2011-07-19 Itt Manufacturing Enterprises, Inc. Adaptive power and data rate control for ad-hoc mobile wireless systems
US8630309B2 (en) * 2008-09-10 2014-01-14 Electronics And Telecommunications Research Institute Frame generation apparatus and method of protecting protocol header information over wideband high frequency wireless system
KR101042600B1 (ko) * 2009-12-04 2011-06-20 한국전자통신연구원 반―선형 센서 네트워크에서 저전력 매체 접근 제어 방법
US8855496B2 (en) * 2010-01-05 2014-10-07 Samsung Electronics Co., Ltd. Optical clock rate negotiation for supporting asymmetric clock rates for visible light communication
FR2957214B1 (fr) * 2010-03-08 2012-10-26 Astrium Sas Procede de transmission optique par signaux laser
US9585025B2 (en) 2011-02-16 2017-02-28 Qualcomm Incorporated Managing transmit power for better frequency re-use in TV white space
US9813994B2 (en) * 2011-02-16 2017-11-07 Qualcomm, Incorporated Managing transmit power for better frequency re-use in TV white space
US8504063B2 (en) * 2011-06-21 2013-08-06 Broadcom Corporation Anonymous directional peer-to-peer wireless communication
US8774635B2 (en) 2011-06-30 2014-07-08 The Johns Hopkins University Fiber-optic automatic gain control systems and methods
US8634777B2 (en) * 2011-09-26 2014-01-21 Broadcom Corporation Pairing with directional code sequence
CN102983976B (zh) * 2012-11-16 2013-10-30 深圳光启创新技术有限公司 基于光信号的授权方法和装置
US9081684B2 (en) 2013-08-28 2015-07-14 Landis+Gyr Technologies, Llc Data recovery of data symbols received in error
JP2016092491A (ja) 2014-10-30 2016-05-23 富士通株式会社 無線送信システム及び歪み補償方法
KR102026984B1 (ko) 2014-12-15 2019-10-07 주식회사 위츠 무선 충전 제어 방법 및 그를 이용한 무선 전력 송신 장치 및 수신 장치
US9525462B1 (en) 2015-12-04 2016-12-20 Landis+Gyr Technologies, Llc Data recovery of data symbols
US10231194B2 (en) * 2016-10-12 2019-03-12 Qualcomm Incorporated Reception of transmit power related information

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JPH06311160A (ja) * 1993-04-21 1994-11-04 Hitachi Ltd 無線通信方式及び無線端末装置
US5808760A (en) 1994-04-18 1998-09-15 International Business Machines Corporation Wireless optical communication system with adaptive data rates and/or adaptive levels of optical power
PL180350B1 (pl) * 1996-01-03 2001-01-31 Ibm Sposób, system oraz nadajnik i odbiornik optycznej wielotrybowej komunikacji bezprzewodowej PL PL PL PL PL PL PL
US5706428A (en) * 1996-03-14 1998-01-06 Lucent Technologies Inc. Multirate wireless data communication system
US5818826A (en) * 1996-06-17 1998-10-06 International Business Machines Corporation Media access control protocols in a wireless communication network supporting multiple transmission rates

Also Published As

Publication number Publication date
KR100331670B1 (ko) 2002-04-09
WO1999026364A1 (en) 1999-05-27
EP1034626A1 (de) 2000-09-13
DE69719573T2 (de) 2003-12-11
JP2001523913A (ja) 2001-11-27
KR20010024591A (ko) 2001-03-26
TW408529B (en) 2000-10-11
JP3373842B2 (ja) 2003-02-04
US6643469B1 (en) 2003-11-04
EP1034626B1 (de) 2003-03-05

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