CN1222143C - 减小多载波调制系统中峰值对平均值功率比的方法和设备 - Google Patents
减小多载波调制系统中峰值对平均值功率比的方法和设备 Download PDFInfo
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- CN1222143C CN1222143C CNB971992932A CN97199293A CN1222143C CN 1222143 C CN1222143 C CN 1222143C CN B971992932 A CNB971992932 A CN B971992932A CN 97199293 A CN97199293 A CN 97199293A CN 1222143 C CN1222143 C CN 1222143C
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
- H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
-
- 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
- H04L27/2602—Signal structure
-
- 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
- H04L27/2614—Peak power aspects
-
- 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
- H04L27/2614—Peak power aspects
- H04L27/2621—Reduction thereof using phase offsets between subcarriers
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19635813.2 | 1996-09-04 | ||
DE19635813A DE19635813A1 (de) | 1996-09-04 | 1996-09-04 | Verfahren zur Reduktion des Spitzenwertfaktors bei digitalen Übertragungsverfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1244323A CN1244323A (zh) | 2000-02-09 |
CN1222143C true CN1222143C (zh) | 2005-10-05 |
Family
ID=7804558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB971992932A Expired - Lifetime CN1222143C (zh) | 1996-09-04 | 1997-09-02 | 减小多载波调制系统中峰值对平均值功率比的方法和设备 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6125103A (zh) |
EP (1) | EP0925672A1 (zh) |
JP (1) | JP3999271B2 (zh) |
KR (1) | KR100346336B1 (zh) |
CN (1) | CN1222143C (zh) |
AU (1) | AU4620197A (zh) |
DE (1) | DE19635813A1 (zh) |
TW (1) | TW358272B (zh) |
WO (1) | WO1998010567A1 (zh) |
Families Citing this family (103)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7274652B1 (en) * | 2000-06-02 | 2007-09-25 | Conexant, Inc. | Dual packet configuration for wireless communications |
GB2309363B (en) * | 1996-01-17 | 2000-07-12 | Motorola Ltd | Multicarrier communication system and method for peak power control |
KR100234330B1 (ko) * | 1997-09-30 | 1999-12-15 | 윤종용 | Ofdm 시스템 수신기의 보호 구간 종류 검출장치 및 그 방법 |
JP3185867B2 (ja) * | 1997-11-28 | 2001-07-11 | 日本電気株式会社 | 誤差検出方法および装置、信号復調方法および装置 |
DE19808993C2 (de) | 1998-03-03 | 2003-12-18 | Fraunhofer Ges Forschung | Verfahren zur Spitzenwertreduktion bei Einträger-modulierten oder Mehrträger-modulierten, digitalen Sendesignalen |
US6301268B1 (en) * | 1998-03-10 | 2001-10-09 | Lucent Technologies Inc. | Communication method for frequency division multiplexing signalling systems with reduced average power requirements |
US6512797B1 (en) | 1998-04-20 | 2003-01-28 | The Board Of Trustees Of The Leland Stanford Junior University | Peak to average power ratio reduction |
US6424681B1 (en) * | 1998-04-20 | 2002-07-23 | The Board Of Trustees Of The Leland Stanford Junior University | Peak to average power ratio reduction |
US6314146B1 (en) | 1998-06-05 | 2001-11-06 | The Board Of Trustees Of The Leland Stanford Junior University | Peak to average power ratio reduction |
DE19824233B4 (de) * | 1998-05-29 | 2005-10-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Amplitudenbegrenzung |
GB2339514A (en) * | 1998-07-11 | 2000-01-26 | Motorola Ltd | Cellular communication system with reduced power variation |
US6445747B1 (en) * | 1998-07-14 | 2002-09-03 | At&T Corporation | Method and apparatus to reduce peak to average power ratio in multi-carrier modulation |
US6584160B1 (en) * | 1998-08-13 | 2003-06-24 | Globespanvirata, Inc. | System and method for reducing the effects of clipping in a DMT transceiver |
GB9823145D0 (en) * | 1998-10-23 | 1998-12-16 | Philips Electronics Nv | Radio communication system |
DE19850642C2 (de) * | 1998-11-03 | 2003-08-07 | Infineon Technologies Ag | Verfahren zur Reduzierung des Crest-Faktors eines Signals |
JP4287536B2 (ja) | 1998-11-06 | 2009-07-01 | パナソニック株式会社 | Ofdm送受信装置及びofdm送受信方法 |
US6147984A (en) * | 1999-04-14 | 2000-11-14 | Motorola, Inc. | Method and apparatus for peak limiting in a modulator |
JP2003500932A (ja) * | 1999-05-21 | 2003-01-07 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 多重キャリア伝送におけるパワー比を平均化するためのピーク低減 |
US6785258B1 (en) * | 1999-06-23 | 2004-08-31 | At&T Wireless Services, Inc. | System and method for data scrambling to reduce the crest factor in an OFDM waveform |
DE19944558C2 (de) * | 1999-09-17 | 2002-10-10 | Bosch Gmbh Robert | Verfahren zum Senden von Funksignalen und Sender zum Versenden eines Funksignals |
US8363757B1 (en) | 1999-10-12 | 2013-01-29 | Qualcomm Incorporated | Method and apparatus for eliminating the effects of frequency offsets in a digital communication system |
US6961369B1 (en) | 1999-11-09 | 2005-11-01 | Aware, Inc. | System and method for scrambling the phase of the carriers in a multicarrier communications system |
DE19958210C2 (de) | 1999-12-02 | 2003-08-21 | Fraunhofer Ges Forschung | Vorrichtung und Verfahren zum Erzeugen einer Sendesequenz und Vorrichtung und Verfahren zum Ermitteln eines Informationsworts aus einer empfangenen Sendesequenz |
EP1264434B1 (de) * | 1999-12-22 | 2006-09-13 | Deutsche Telekom AG | Verfahren und schaltungsanordnung zur sicheren digitalübertragung |
US6628673B1 (en) * | 1999-12-29 | 2003-09-30 | Atheros Communications, Inc. | Scalable communication system using overlaid signals and multi-carrier frequency communication |
US6928084B2 (en) * | 2000-03-28 | 2005-08-09 | At & T Corp. | OFDM communication system and method having a reduced peak-to-average power ratio |
DE10015257A1 (de) | 2000-03-28 | 2001-10-04 | Rohde & Schwarz | Verfahren zum Übertragen von OFDM-Signalen |
DE10027301A1 (de) * | 2000-06-05 | 2001-12-20 | Gds Gmbh Ges Fuer Digitale Sig | Verfahren zur Multiträger-Datenübertragung und Kommunikationssystem |
AU2001278971A1 (en) * | 2000-07-21 | 2002-02-05 | Pmc-Sierra, Ltd. | Systems and methods for reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms |
US8127326B2 (en) | 2000-11-14 | 2012-02-28 | Claussen Paul J | Proximity detection using wireless connectivity in a communications system |
US6437578B1 (en) * | 2000-11-14 | 2002-08-20 | Tektronix, Inc. | Cable loss correction of distance to fault and time domain reflectometer measurements |
CA2428946C (en) | 2000-11-14 | 2010-06-22 | Scientific-Atlanta, Inc. | Networked subscriber television distribution |
KR100480775B1 (ko) * | 2000-11-18 | 2005-04-06 | 삼성전자주식회사 | 다중파 전송 시스템을 위한 최고 대 평균비 감소 방법 및장치 |
US6990153B1 (en) * | 2001-02-06 | 2006-01-24 | Agency For Science, Technology And Research | Method and apparatus for semi-blind communication channel estimation |
US6950389B2 (en) * | 2001-02-16 | 2005-09-27 | Agere Systems Inc. | Peak-to-average power reduction in an orthogonal frequency division multiplexing system |
DE10112025A1 (de) * | 2001-03-06 | 2002-09-19 | Deutsche Telekom Ag | Verfahren zur Verringerung der Außenbandstrahlung bei AM-Sendern für digitale Übertragung |
US6674999B2 (en) * | 2001-03-16 | 2004-01-06 | Skyworks Solutions, Inc | Dynamically varying linearity system for an RF front-end of a communication device |
KR20010069611A (ko) * | 2001-04-20 | 2001-07-25 | 유흥균 | 다중 반송파 통신 시스템에서 지연회로를 이용한 피크대평균 전력비(papr) 저감 방법 |
US7046739B2 (en) | 2001-05-18 | 2006-05-16 | Southwest Research Institute | Pre-distortion of input signals to form constant envelope signal outputs |
US7170952B2 (en) | 2001-07-02 | 2007-01-30 | Powerwave Technologies, Inc. | System and method for post filtering peak power reduction in communications systems |
US7095798B2 (en) | 2001-08-02 | 2006-08-22 | Powerwave Technologies, Inc. | System and method for post filtering peak power reduction in multi-carrier communications systems |
EP1419582A1 (en) * | 2001-08-23 | 2004-05-19 | Nortel Networks Limited | System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers |
US7318185B2 (en) * | 2001-08-23 | 2008-01-08 | Nortel Networks Limited | Method and apparatus for scrambling based peak-to-average power ratio reduction without side information |
US7054385B2 (en) * | 2001-10-22 | 2006-05-30 | Tropian, Inc. | Reduction of average-to-minimum power ratio in communications signals |
US8331490B2 (en) * | 2001-10-22 | 2012-12-11 | Panasonic Corporation | Methods and apparatus for conditioning communications signals based on detection of high-frequency events in polar domain |
US20070211829A1 (en) * | 2001-10-22 | 2007-09-13 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for pulse optimization for non-linear filtering |
KR100754621B1 (ko) * | 2001-11-09 | 2007-09-05 | 삼성전자주식회사 | 직교주파수분할다중화 방식의 이동통신시스템에서피크전력 대 평균전력의 감소장치 및 방법 |
KR100429528B1 (ko) | 2002-01-23 | 2004-05-03 | 삼성전자주식회사 | 디지털 통신 방법 및 장치 |
JP2003283460A (ja) * | 2002-03-26 | 2003-10-03 | Matsushita Electric Ind Co Ltd | マルチキャリア送信装置およびマルチキャリア送信方法 |
KR100754721B1 (ko) | 2002-04-26 | 2007-09-03 | 삼성전자주식회사 | 직교주파수분할다중화 통신시스템에서 다중화 데이터 송수신 장치 및 방법 |
FI20020820A0 (fi) * | 2002-04-30 | 2002-04-30 | Nokia Corp | Menetelmä signaalin rajoittamiseksi ja lähetin |
KR20040005175A (ko) * | 2002-07-08 | 2004-01-16 | 삼성전자주식회사 | 직교주파수분할다중화 통신시스템에서 선택적매핑의부가정보 송수신 장치 및 방법 |
US7516470B2 (en) * | 2002-08-02 | 2009-04-07 | Cisco Technology, Inc. | Locally-updated interactive program guide |
US7908625B2 (en) | 2002-10-02 | 2011-03-15 | Robertson Neil C | Networked multimedia system |
US8046806B2 (en) | 2002-10-04 | 2011-10-25 | Wall William E | Multiroom point of deployment module |
US7360235B2 (en) | 2002-10-04 | 2008-04-15 | Scientific-Atlanta, Inc. | Systems and methods for operating a peripheral record/playback device in a networked multimedia system |
KR100548319B1 (ko) * | 2002-12-27 | 2006-02-02 | 엘지전자 주식회사 | 직교분할다중접속 시스템의 최소 피에이피알 수열 검색 방법 |
US8094640B2 (en) | 2003-01-15 | 2012-01-10 | Robertson Neil C | Full duplex wideband communications system for a local coaxial network |
TWI257794B (en) * | 2003-01-24 | 2006-07-01 | Ind Tech Res Inst | System and method of protecting and transmitting side information for multicarrier communication systems with reduced peak-to-average power ratio |
KR100899747B1 (ko) * | 2003-02-13 | 2009-05-27 | 삼성전자주식회사 | 직교주파수분할다중 시스템의 첨두대평균 전력비 저감을위한 장치 및 방법 |
DE10317119A1 (de) * | 2003-04-14 | 2004-11-18 | Siemens Ag | Verfahren, Funksende-/Funkempfangsvorrichtung, Mobiles Endgerät sowie Basisstation zur Datenübertragung in einem Mehrträgersystem |
GB0308701D0 (en) * | 2003-04-15 | 2003-05-21 | Nokia Corp | Forming multi-carrier signals |
GB2401516A (en) * | 2003-04-17 | 2004-11-10 | Univ Southampton | Peak-to-average power ratio reduction by subtracting shaped pulses from a baseband signal |
US7551676B1 (en) | 2003-05-22 | 2009-06-23 | Nortel Networks Limited | Technique for reducing peak-to-average power ratio in digital signal communications |
US7042287B2 (en) * | 2003-07-23 | 2006-05-09 | Northrop Grumman Corporation | System and method for reducing dynamic range and improving linearity in an amplication system |
US7505522B1 (en) * | 2003-10-06 | 2009-03-17 | Staccato Communications, Inc. | Spectral shaping in multiband OFDM transmitter with clipping |
US7376689B2 (en) * | 2004-03-12 | 2008-05-20 | Infineon Technologies Ag | Method and apparatus for reducing the crest factor of a signal |
US7519123B1 (en) | 2004-04-08 | 2009-04-14 | Staccato Communications, Inc. | Spectral shaping for multiband OFDM transmitters with time spreading |
JP4398791B2 (ja) | 2004-05-25 | 2010-01-13 | 株式会社エヌ・ティ・ティ・ドコモ | 送信機および送信制御方法 |
JP4703135B2 (ja) * | 2004-05-25 | 2011-06-15 | 株式会社エヌ・ティ・ティ・ドコモ | 送信機および送信制御方法 |
JP4429809B2 (ja) * | 2004-05-31 | 2010-03-10 | 富士通株式会社 | Ofdm変調装置及びofdm変調方法 |
US7342978B2 (en) * | 2004-06-02 | 2008-03-11 | Industrial Technology Research Institute | Method and apparatus for PAPR reduction of an OFDM signal |
KR100739511B1 (ko) * | 2004-06-25 | 2007-07-13 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서파일럿 신호 송수신 장치 및 방법 |
TWI246273B (en) * | 2004-06-28 | 2005-12-21 | Ind Tech Res Inst | Method and apparatus for high-order PAPR reduction of an OFDM signal |
JP4906721B2 (ja) * | 2004-08-03 | 2012-03-28 | エージェンシー フォー サイエンス, テクノロジー アンド リサーチ | デジタル信号の送信方法、デジタル信号の受信方法、並びに送信機及び受信機 |
US8040787B2 (en) | 2004-12-02 | 2011-10-18 | New Jersey Institute Of Technology | Method and/or system for reduction of PAPR |
KR100659229B1 (ko) | 2004-12-14 | 2006-12-19 | 한국전자통신연구원 | 다중 반송파 직접 시퀀스 코드분할 통신 시스템에서신호의 최대 전력 대 평균 전력 비 감소 방법 및 이를이용한 송신 장치 그리고 수신 장치 |
KR100643150B1 (ko) * | 2005-01-05 | 2006-11-10 | 오소트론 주식회사 | 첩 신호의 반복 시간 간격 차이를 이용한 차분적 직교변조 방법 및 장치 |
DE102005016717B4 (de) * | 2005-04-11 | 2012-05-03 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zur Unterdrückung spektraler Nebenzipfel in auf OFDM beruhenden Übertragungssystemen |
DE102005016716B4 (de) * | 2005-04-11 | 2012-05-03 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zur Unterdrückung spektraler Nebenzipfel in auf OFDM beruhenden Übertragungssystemen |
DE102006010900C5 (de) * | 2005-05-11 | 2015-05-28 | Sew-Eurodrive Gmbh & Co Kg | System zur berührungslosen Übertragung von Information |
KR100781313B1 (ko) * | 2005-06-16 | 2007-12-03 | 엘지전자 주식회사 | Ofdm 신호 송수신 방법 및 이를 이용한 이동통신단말기 |
US20060291584A1 (en) * | 2005-06-28 | 2006-12-28 | Harris Corporation | Composite crest factor reduction |
US7697414B2 (en) * | 2005-09-30 | 2010-04-13 | Meshnetworks, Inc. | System and method for achieving crest factor reduction for multi-carrier modulation in a wireless communication network |
US7876998B2 (en) | 2005-10-05 | 2011-01-25 | Wall William E | DVD playback over multi-room by copying to HDD |
DE602005009214D1 (de) * | 2005-10-25 | 2008-10-02 | Fujitsu Ltd | Kommunikationssysteme und -verfahren mit Selected Mapping (SLM)-Technik für OFDM Signale |
DE102006017962B4 (de) * | 2006-04-13 | 2020-07-30 | Siemens Mobility GmbH | Digitales Übertragungsverfahren |
EP2033393B1 (en) * | 2006-06-14 | 2014-01-22 | Agere Systems Inc. | Orthogonal frequency division multiplexing using subsymbol processing |
EP2109963B1 (de) | 2006-11-03 | 2012-12-12 | SEW-EURODRIVE GmbH & Co. KG | Verfahren und vorrichtung zur busarbitration, umrichter und fertigungsanlage |
FR2909500B1 (fr) * | 2006-12-05 | 2009-02-06 | Sercel Sa | Procede et systeme de transmission multi-porteuses dans un environnement difficile avec optimisation de la puissance d'emission |
KR101314254B1 (ko) * | 2007-02-16 | 2013-10-02 | 삼성전자주식회사 | Ofdm 송수신 시스템 및 그 방법 |
US8369809B2 (en) * | 2007-07-27 | 2013-02-05 | Netlogic Microsystems, Inc. | Crest factor reduction |
CN102119482A (zh) * | 2008-06-11 | 2011-07-06 | 奥普蒂科伦公司 | 具有相位优化的波峰因数降低 |
WO2013104082A1 (en) * | 2012-01-12 | 2013-07-18 | Telefonaktiebolaget L M Ericsson (Pub) | Adaptive phase shift apparatus and method |
JP6971569B2 (ja) * | 2016-12-22 | 2021-11-24 | 株式会社東芝 | 送信装置、および送信方法 |
JP6566000B2 (ja) * | 2017-06-02 | 2019-08-28 | マツダ株式会社 | エンジン |
US11073102B2 (en) | 2017-06-02 | 2021-07-27 | Mazda Motor Corporation | Combustion chamber structure for engines |
JP6565999B2 (ja) * | 2017-06-02 | 2019-08-28 | マツダ株式会社 | エンジン |
WO2018221638A1 (ja) | 2017-06-02 | 2018-12-06 | マツダ株式会社 | エンジンの燃焼室構造 |
US11082279B2 (en) | 2018-09-27 | 2021-08-03 | At&T Intellectual Property I, L.P. | Facilitation of reduction of peak to average power ratio for 5G or other next generation network |
US10659270B2 (en) | 2018-10-10 | 2020-05-19 | At&T Intellectual Property I, L.P. | Mapping reference signals in wireless communication systems to avoid repetition |
US11418992B2 (en) | 2018-11-02 | 2022-08-16 | At&T Intellectual Property I, L.P. | Generation of demodulation reference signals in advanced networks |
US11032112B2 (en) | 2019-10-18 | 2021-06-08 | Motorola Solutions, Inc. | Multi-carrier crest factor reduction |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5214672A (en) * | 1990-04-06 | 1993-05-25 | Codex Corporation | Trellis precoding for fractional bits/baud |
US5128964A (en) * | 1990-10-10 | 1992-07-07 | Intelligent Modem Corporation | Modulation method and apparatus for multicarrier data transmission |
US5302914A (en) * | 1992-10-20 | 1994-04-12 | At&T Bell Laboratories | Method and apparatus for reducing the peak-to-average power in multi-carrier RF communication systems |
GB9418514D0 (en) * | 1994-09-14 | 1994-11-02 | At & T Global Inf Solution | Information transmission system |
US5838732A (en) * | 1994-10-31 | 1998-11-17 | Airnet Communications Corp. | Reducing peak-to-average variance of a composite transmitted signal generated by a digital combiner via carrier phase offset |
US5835536A (en) * | 1995-02-02 | 1998-11-10 | Motorola, Inc. | Method and apparatus for reducing peak-to-average requirements in multi-tone communication circuits |
DE69632431T2 (de) * | 1995-03-31 | 2005-05-19 | Victor Company of Japan, Ltd., Yokohama | Mehrträgenmodulator- und -demodulator mit Einrichtungen zur Verringerung der Spitzenleistung |
DE69535033T2 (de) * | 1995-07-11 | 2007-03-08 | Alcatel | Zuweisung von Kapazität bei OFDM |
-
1996
- 1996-09-04 DE DE19635813A patent/DE19635813A1/de not_active Withdrawn
-
1997
- 1997-09-02 CN CNB971992932A patent/CN1222143C/zh not_active Expired - Lifetime
- 1997-09-02 WO PCT/EP1997/004770 patent/WO1998010567A1/en not_active Application Discontinuation
- 1997-09-02 JP JP51222598A patent/JP3999271B2/ja not_active Expired - Lifetime
- 1997-09-02 EP EP97944821A patent/EP0925672A1/en not_active Withdrawn
- 1997-09-02 AU AU46201/97A patent/AU4620197A/en not_active Abandoned
- 1997-09-02 TW TW086112637A patent/TW358272B/zh active
- 1997-09-02 KR KR1019997001790A patent/KR100346336B1/ko not_active IP Right Cessation
- 1997-09-03 US US08/922,394 patent/US6125103A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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KR20000068425A (ko) | 2000-11-25 |
KR100346336B1 (ko) | 2002-07-26 |
TW358272B (en) | 1999-05-11 |
WO1998010567A1 (en) | 1998-03-12 |
DE19635813A1 (de) | 1998-03-05 |
AU4620197A (en) | 1998-03-26 |
JP3999271B2 (ja) | 2007-10-31 |
EP0925672A1 (en) | 1999-06-30 |
US6125103A (en) | 2000-09-26 |
CN1244323A (zh) | 2000-02-09 |
JP2000517500A (ja) | 2000-12-26 |
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