DE69123858D1 - Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung und kohärenter Demodulation - Google Patents

Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung und kohärenter Demodulation

Info

Publication number
DE69123858D1
DE69123858D1 DE69123858T DE69123858T DE69123858D1 DE 69123858 D1 DE69123858 D1 DE 69123858D1 DE 69123858 T DE69123858 T DE 69123858T DE 69123858 T DE69123858 T DE 69123858T DE 69123858 D1 DE69123858 D1 DE 69123858D1
Authority
DE
Germany
Prior art keywords
time
data distribution
coherent demodulation
frequency interleaving
interleaving
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
DE69123858T
Other languages
English (en)
Other versions
DE69123858T2 (de
Inventor
Jean-Francois Helard
Jean-Michel Lemesle
Roselyne Halbert-Lassalle
Floch Bernard Le
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.)
Telediffusion de France ets Public de Diffusion
Orange SA
Original Assignee
Telediffusion de France ets Public de Diffusion
France Telecom SA
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 Telediffusion de France ets Public de Diffusion, France Telecom SA filed Critical Telediffusion de France ets Public de Diffusion
Publication of DE69123858D1 publication Critical patent/DE69123858D1/de
Application granted granted Critical
Publication of DE69123858T2 publication Critical patent/DE69123858T2/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
    • 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
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69123858T 1990-02-06 1991-02-05 Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung und kohärenter Demodulation Expired - Lifetime DE69123858T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9001491A FR2658016B1 (fr) 1990-02-06 1990-02-06 Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant.

Publications (2)

Publication Number Publication Date
DE69123858D1 true DE69123858D1 (de) 1997-02-13
DE69123858T2 DE69123858T2 (de) 1997-07-24

Family

ID=9393517

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123858T Expired - Lifetime DE69123858T2 (de) 1990-02-06 1991-02-05 Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung und kohärenter Demodulation

Country Status (4)

Country Link
US (1) US5274629A (de)
EP (1) EP0441731B1 (de)
DE (1) DE69123858T2 (de)
FR (1) FR2658016B1 (de)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048057A (en) * 1990-01-02 1991-09-10 At&T Bell Laboratories Wireless local area network
FR2660131B1 (fr) * 1990-03-23 1992-06-19 France Etat Dispositif de transmissions de donnees numeriques a au moins deux niveaux de protection, et dispositif de reception correspondant.
JPH05501189A (ja) * 1990-06-12 1993-03-04 モトローラ・インコーポレイテッド 時間領域パイロット成分を有する通信信号
US5381449A (en) * 1990-06-12 1995-01-10 Motorola, Inc. Peak to average power ratio reduction methodology for QAM communications systems
SG44771A1 (en) * 1991-02-28 1997-12-19 Philips Electronics Nv System for broadcasting and receiving digital data receiver and transmitter for use in such system
EP0507386B1 (de) * 1991-04-02 1996-09-04 Philips Communication D'entreprise Informationsübertragungssystem mit wenigstens einer Basisstation und einer sekundären Station
DE4138770A1 (de) * 1991-11-26 1993-05-27 Daimler Benz Ag Verfahren zur digitalen datenuebertragung im nullsymbol des cofdm-modulationsverfahrens
FR2685839A1 (fr) * 1991-12-26 1993-07-02 Thomson Csf Procede de modulation et de demodulation coherent pour la transmission de donnees haut debit en hf.
JP2904986B2 (ja) * 1992-01-31 1999-06-14 日本放送協会 直交周波数分割多重ディジタル信号送信装置および受信装置
USRE37802E1 (en) 1992-03-31 2002-07-23 Wi-Lan Inc. Multicode direct sequence spread spectrum
US5416767A (en) * 1993-02-08 1995-05-16 U.S. Philips Corporation Method of transmitting a data stream, transmitter and receiver
DE4319769C1 (de) * 1993-06-15 1994-07-14 Grundig Emv Verfahren und Anordnung zur Einstellung der lokalen Oszillatoren eines Empfängers in einem Mehrkanalübertragungssystem
FR2707064B1 (de) * 1993-06-21 1996-03-08 France Telecom
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
CN1124716C (zh) 1993-09-10 2003-10-15 德国汤姆逊-布朗特公司 在ｏｆｄｍ***中传输参考信号的方法
SG48266A1 (en) * 1993-12-22 1998-04-17 Philips Electronics Nv Multicarrier frequency hopping communications system
EP0671824B1 (de) * 1994-03-07 2004-05-19 Siemens Aktiengesellschaft Verfahren und Anordnung zur Übertragen von block kodierten Informationen über mehrere Kanäle in einem digitalen mobilen Funksystem
US5588022A (en) * 1994-03-07 1996-12-24 Xetron Corp. Method and apparatus for AM compatible digital broadcasting
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US20010055320A1 (en) * 1994-12-15 2001-12-27 Pierzga Wayne Francis Multiplex communication
US5774450A (en) * 1995-01-10 1998-06-30 Matsushita Electric Industrial Co., Ltd. Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
JP3521016B2 (ja) * 1995-03-27 2004-04-19 松下電器産業株式会社 直交周波数分割多重信号の受信方法および受信装置
FI99252C (fi) * 1995-07-03 1997-12-29 Nokia Mobile Phones Ltd Yhdistetty radiosignaalin modulointi- ja monikäyttömenetelmä
FR2738095B1 (fr) * 1995-08-21 1997-11-07 France Telecom Procede et dispositif de demodulation d'un signal multiporteuse tenant compte d'une estimation de la reponse du canal de transmission et d'une estimaton d'une distorsion blanche en frequence
US5862186A (en) * 1995-12-01 1999-01-19 Kumar; Derek D. RF simplex spread spectrum receiver and method
US5905742A (en) * 1995-12-27 1999-05-18 Ericsson Inc. Method and apparauts for symbol decoding
FR2743967B1 (fr) * 1996-01-18 1998-03-27 France Telecom Procede et dispositif de synchronisation temporelle d'un recepteur d'un signal multiporteuse
JP3348210B2 (ja) * 1996-04-08 2002-11-20 株式会社ケンウッド 復調器
US6192068B1 (en) 1996-10-03 2001-02-20 Wi-Lan Inc. Multicode spread spectrum communications system
GB9700947D0 (en) * 1997-01-17 1997-03-05 Digi Media Vision Ltd Method and apparatus for receiving frequency division multiplex signals
GB9703634D0 (en) * 1997-02-21 1997-04-09 Digi Media Vision Ltd Method and apparatus for transmitting frequency division multiplex signals
JP3797510B2 (ja) * 1997-07-16 2006-07-19 ソニー株式会社 通信方法、送信装置、受信装置及びセルラー無線通信システム
DE19800718A1 (de) * 1998-01-12 1999-07-22 Abb Research Ltd Verfahren zur Übertragung digitaler Daten
EP0938208A1 (de) * 1998-02-22 1999-08-25 Sony International (Europe) GmbH Mehrträgerübertragung, kompatible zum existierenden GSM-System
US6151295A (en) * 1998-02-26 2000-11-21 Wavesat Telecom Inc. OFDM receiving system
US6108810A (en) * 1998-03-27 2000-08-22 Usa Digital Radio, Inc. Digital audio broadcasting method using puncturable convolutional code
US6317470B1 (en) 1998-09-15 2001-11-13 Ibiquity Digital Corporation Adaptive weighting method for orthogonal frequency division multiplexed soft symbols using channel state information estimates
US6292511B1 (en) * 1998-10-02 2001-09-18 Usa Digital Radio Partners, Lp Method for equalization of complementary carriers in an AM compatible digital audio broadcast system
US6295317B1 (en) 1998-10-02 2001-09-25 Usa Digital Radio Partners, Lp Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal
US6259893B1 (en) 1998-11-03 2001-07-10 Ibiquity Digital Corporation Method and apparatus for reduction of FM interference for FM in-band on-channel digital audio broadcasting system
US6269132B1 (en) 1999-04-26 2001-07-31 Intellon Corporation Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols
FR2795261A1 (fr) * 1999-06-21 2000-12-22 Canon Kk Procede et dispositif de determination d'un instant de reference lie a la reception de donnees
US6278685B1 (en) 1999-08-19 2001-08-21 Intellon Corporation Robust transmission mode
US6721337B1 (en) 1999-08-24 2004-04-13 Ibiquity Digital Corporation Method and apparatus for transmission and reception of compressed audio frames with prioritized messages for digital audio broadcasting
US6549544B1 (en) * 1999-11-10 2003-04-15 Ibiquity Digital Corporation Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
US6523147B1 (en) 1999-11-11 2003-02-18 Ibiquity Digital Corporation Method and apparatus for forward error correction coding for an AM in-band on-channel digital audio broadcasting system
US6747946B1 (en) * 1999-12-27 2004-06-08 Victor Company Of Japan, Ltd. Method and apparatus for transmitting orthogonal-multi-carrier signal
KR100318952B1 (ko) 1999-12-29 2002-01-04 윤종용 무선통신시스템에서 채널 추정을 위한 장치 및 방법
DE10005287A1 (de) * 2000-02-07 2001-08-09 Rohde & Schwarz Verfahren zum Bestimmen der Restträgerleistung bei einem nach dem DVB-T-Standard im 8K-Modus QAM-modulierten Multiträgersignal
US6289000B1 (en) 2000-05-19 2001-09-11 Intellon Corporation Frame control encoder/decoder for robust OFDM frame transmissions
US6671340B1 (en) 2000-06-15 2003-12-30 Ibiquity Digital Corporation Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receivers
US6930989B1 (en) * 2000-06-20 2005-08-16 Cisco Technology, Inc. Wide frequency offset correction using encoded interburst phase differences
US6909723B1 (en) 2000-08-04 2005-06-21 Intellon Corporation Segment bursting with priority pre-emption and reduced latency
US7298691B1 (en) 2000-08-04 2007-11-20 Intellon Corporation Method and protocol to adapt each unique connection in a multi-node network to a maximum data rate
US7469297B1 (en) 2000-08-04 2008-12-23 Intellon Corporation Mechanism for using a quasi-addressed response to bind to a message requesting the response
US7352770B1 (en) 2000-08-04 2008-04-01 Intellon Corporation Media access control protocol with priority and contention-free intervals
US6907044B1 (en) 2000-08-04 2005-06-14 Intellon Corporation Method and protocol to support contention-free intervals and QoS in a CSMA network
US6987770B1 (en) 2000-08-04 2006-01-17 Intellon Corporation Frame forwarding in an adaptive network
FR2814303A1 (fr) * 2000-09-20 2002-03-22 France Telecom Signal multiporteuse a symbole de reference concu pour limiter l'interference, procede de reception, procede de construction, recepteur et dispositif correspondants
FR2814302B1 (fr) * 2000-09-20 2003-02-07 France Telecom Signal multiporteuse a pilotes repartis concu pour limiter l'interference, procede de construction d'un signal, procede de reception, recepteur et dispositif d'emission correspondants
GB2370952B (en) * 2001-01-05 2003-04-09 British Broadcasting Corp Improvements in channel state measurement and in discriminating digital values from a received signal suitable for use with OFDM signals
FR2820574B1 (fr) * 2001-02-08 2005-08-05 Wavecom Sa Procede d'extraction d'un motif de symboles de reference servant a estimer la fonction de transfert d'un canal de transmission, signal, dispositif et procedes correspondants
DE10115221A1 (de) * 2001-03-28 2002-10-10 Bosch Gmbh Robert Verfahren zur Rahmen- und Frequenzsynchronisation eines OFDM-Signals und Verfahren zum Senden eines OFDM-Signals
US6961545B2 (en) 2001-04-09 2005-11-01 Atheros Communications, Inc. Method and system for providing antenna diversity
FR2826208B1 (fr) * 2001-06-19 2003-12-05 Thales Sa Systeme et procede de transmission d'un signal audio ou phonie
US7548875B2 (en) 2001-06-27 2009-06-16 John Mikkelsen Media delivery platform
FR2829642B1 (fr) * 2001-09-12 2004-01-16 Eads Defence & Security Ntwk Signal multiporteuses, procede de poursuite d'un canal de transmission a partir d'un tel signal et dispositif pour sa mise en oeuvre
US7342973B2 (en) * 2001-09-26 2008-03-11 General Atomics Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources
US7236464B2 (en) * 2001-09-26 2007-06-26 General Atomics Flexible method and apparatus for encoding and decoding signals using a time division multiple frequency scheme
US7321601B2 (en) 2001-09-26 2008-01-22 General Atomics Method and apparatus for data transfer using a time division multiple frequency scheme supplemented with polarity modulation
JP3974577B2 (ja) * 2001-09-26 2007-09-12 ジェネラル アトミックス 時分割多重周波数方式を使用したデータ転送のための方法および装置
US7609608B2 (en) * 2001-09-26 2009-10-27 General Atomics Method and apparatus for data transfer using a time division multiple frequency scheme with additional modulation
FR2831359B1 (fr) * 2001-10-23 2004-01-16 Eads Defence & Security Ntwk Procede d'estimation d'un canal de transmission et dispositifs pour sa mise en oeuvre
WO2004032600A2 (en) * 2002-02-20 2004-04-22 General Atomics Method and apparatus for data transfer using a time division multiple frequency scheme with additional modulation
US8149703B2 (en) 2002-06-26 2012-04-03 Qualcomm Atheros, Inc. Powerline network bridging congestion control
US7826466B2 (en) 2002-06-26 2010-11-02 Atheros Communications, Inc. Communication buffer scheme optimized for VoIP, QoS and data networking over a power line
US7120847B2 (en) 2002-06-26 2006-10-10 Intellon Corporation Powerline network flood control restriction
US7623542B2 (en) 2002-10-21 2009-11-24 Intellon Corporation Contention-free access intervals on a CSMA network
US7281187B2 (en) 2003-11-20 2007-10-09 Intellon Corporation Using error checking bits to communicated an address or other bits
US8090857B2 (en) 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
US7660327B2 (en) 2004-02-03 2010-02-09 Atheros Communications, Inc. Temporary priority promotion for network communications in which access to a shared medium depends on a priority level
US7715425B2 (en) 2004-02-26 2010-05-11 Atheros Communications, Inc. Channel adaptation synchronized to periodically varying channel
WO2005125139A1 (en) 2004-06-16 2005-12-29 Samsung Electronics Co., Ltd. Method for transmitting/receiving data in mobile communication systems using an ofdma scheme
US7636370B2 (en) 2005-03-03 2009-12-22 Intellon Corporation Reserving time periods for communication on power line networks
US7822059B2 (en) 2005-07-27 2010-10-26 Atheros Communications, Inc. Managing contention-free time allocations in a network
US8175190B2 (en) 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US7508842B2 (en) * 2005-08-18 2009-03-24 Motorola, Inc. Method and apparatus for pilot signal transmission
US8493995B2 (en) 2007-05-10 2013-07-23 Qualcomm Incorporated Managing distributed access to a shared medium
EP2559200A4 (de) 2010-04-12 2015-04-22 Qualcomm Inc Erkennung von begrenzern von kommunikationen mit geringem overhead in einem netzwerk
US8891605B2 (en) 2013-03-13 2014-11-18 Qualcomm Incorporated Variable line cycle adaptation for powerline communications

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206320A (en) * 1978-08-21 1980-06-03 University Of Illinois Foundation High speed modem suitable for operating with a switched network
US4551580A (en) * 1982-11-22 1985-11-05 At&T Bell Laboratories Time-frequency scrambler
US4881245A (en) * 1983-07-01 1989-11-14 Harris Corporation Improved signalling method and apparatus
US4601045A (en) * 1984-08-03 1986-07-15 Larse Corporation Modulator-demodulator method and apparatus with efficient bandwidth utilization
US4879711A (en) * 1986-08-14 1989-11-07 Hughes Aircraft Company Satellite communications system employing frequency reuse
GB2206768A (en) * 1987-06-30 1989-01-11 Zbyshek Gorzynski Data transmission by concurrent relative phase coding in multiple spectral carriers
JPH0752867B2 (ja) * 1987-10-02 1995-06-05 株式会社ケンウッド 多チヤンネルｐｃｍ音楽放送システム
US4881241A (en) * 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles

Also Published As

Publication number Publication date
FR2658016A1 (fr) 1991-08-09
EP0441731B1 (de) 1997-01-02
US5274629A (en) 1993-12-28
EP0441731A1 (de) 1991-08-14
FR2658016B1 (fr) 1994-01-21
DE69123858T2 (de) 1997-07-24

Similar Documents

Publication Publication Date Title
DE69123858D1 (de) Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung und kohärenter Demodulation
DE69114733D1 (de) Verfahren zur Datenverbreitung mit Zeit-Frequenzverschachtelung mit Verwendung von Bezugsfrequenzsignalen.
DE69223768D1 (de) Strickentwurfsystem und verfahren zur herstellung von strickdaten dafür
DE3883519D1 (de) Verfahren und Einrichtung zur Sprachkodierung mit mehreren Datenraten.
DE69120596D1 (de) Datenverschlüsselungsvorrichtung und Verfahren zur Datenverschlüsselung
DE69427685T2 (de) Verfahren und vorrichtung zur datenwiedergabe
DE69329565T2 (de) Verfahren und Vorrichtung zur Vorbereitung von Landkartendaten mit regionalen Eigenschaften
DE69127246D1 (de) Verfahren und Gerät zur seriellen Aufzeichnung
DE3689510D1 (de) Einrichtung und Verfahren zur Datenverschleierung.
DE69524452D1 (de) Verfahren und vorrichtung zur herstellung von deckschicht für absorbierende artikel
DE69129620T2 (de) Verfahren und vorrichtung zur vervielfältigung von audio- oder digitalen signalen mit erhöhter geschwindigkeit
DE69011535D1 (de) Verfahren und anordnung zur isolierung von signalen in echtzeit.
DE69025611D1 (de) Verfahren und vorrichtung zur herstellung von kratzenband
DE58901197D1 (de) Verfahren zur weg- und winkelmessung.
DE68912187D1 (de) Zusammensetzung für und Verfahren zur Leimung.
DE68906101D1 (de) Vorrichtung und verfahren zur herstellung von nachgiebigen buerstendichtungen.
DE69123896D1 (de) pH-Messelektrode und Verfahren zur Herstellung derselben
DE68923267D1 (de) Verfahren und gerät zur speicherung.
DE68925373D1 (de) Anordnung und Verfahren zur Informationsübertragung
DE69118029D1 (de) Verfahren und Anordnung zur auf Regeln beruhende Datenübertragung
DE69116690D1 (de) Verfahren und einrichtung zur herstellung von akalichromaten aus chrommineralien
DE68912124D1 (de) Vorrichtung und verfahren zur herstellung unterirdischer leitungen.
DE69014412D1 (de) Bilddatenspeicherungssystem und Verfahren mit Einrichtung zur Änderung der Bilddaten.
DE59208593D1 (de) Verfahren zur herstellung von alkyl- und/oder alkenyloligoglykosiden
DE68915401D1 (de) Verfahren und Vorrichtung zur Imprägnierung mit Firnis.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition