AU765568B2 - Method and apparatus for reducing peak to average power ratio in digital broadcasting systems - Google Patents
Method and apparatus for reducing peak to average power ratio in digital broadcasting systems Download PDFInfo
- Publication number
- AU765568B2 AU765568B2 AU69310/00A AU6931000A AU765568B2 AU 765568 B2 AU765568 B2 AU 765568B2 AU 69310/00 A AU69310/00 A AU 69310/00A AU 6931000 A AU6931000 A AU 6931000A AU 765568 B2 AU765568 B2 AU 765568B2
- Authority
- AU
- Australia
- Prior art keywords
- modulated signal
- produce
- signal
- magnitude
- symbol vectors
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 45
- 239000013598 vector Substances 0.000 claims description 60
- 239000000969 carrier Substances 0.000 claims description 26
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 3
- 241000283014 Dama Species 0.000 claims 5
- JNSGIVNNHKGGRU-JYRVWZFOSA-N diethoxyphosphinothioyl (2z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetate Chemical compound CCOP(=S)(OCC)OC(=O)C(=N/OC)\C1=CSC(N)=N1 JNSGIVNNHKGGRU-JYRVWZFOSA-N 0.000 claims 5
- 230000003595 spectral effect Effects 0.000 description 26
- 108091006146 Channels Proteins 0.000 description 10
- 230000009467 reduction Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 8
- 238000001228 spectrum Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- 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
- H04L27/2623—Reduction thereof by clipping
- H04L27/2624—Reduction thereof by clipping by soft clipping
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/379780 | 1999-08-24 | ||
| US09/379,780 US6128350A (en) | 1999-08-24 | 1999-08-24 | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
| PCT/US2000/023184 WO2001015402A1 (en) | 1999-08-24 | 2000-08-23 | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6931000A AU6931000A (en) | 2001-03-19 |
| AU765568B2 true AU765568B2 (en) | 2003-09-25 |
Family
ID=23498656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU69310/00A Ceased AU765568B2 (en) | 1999-08-24 | 2000-08-23 | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6128350A (enExample) |
| EP (1) | EP1206866B1 (enExample) |
| JP (1) | JP4574095B2 (enExample) |
| KR (1) | KR100623830B1 (enExample) |
| CN (1) | CN1205793C (enExample) |
| AR (1) | AR027843A1 (enExample) |
| AT (1) | ATE308187T1 (enExample) |
| AU (1) | AU765568B2 (enExample) |
| BR (1) | BR0013532B1 (enExample) |
| CA (1) | CA2385125C (enExample) |
| DE (1) | DE60023513T2 (enExample) |
| MX (1) | MXPA02001364A (enExample) |
| RU (1) | RU2234199C2 (enExample) |
| TW (1) | TW519804B (enExample) |
| WO (1) | WO2001015402A1 (enExample) |
Families Citing this family (85)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19808993C2 (de) * | 1998-03-03 | 2003-12-18 | Fraunhofer Ges Forschung | Verfahren zur Spitzenwertreduktion bei Einträger-modulierten oder Mehrträger-modulierten, digitalen Sendesignalen |
| US6556557B1 (en) | 1999-06-02 | 2003-04-29 | At&T Corp. | Method and system for reducing of peak-to-average power ratio of transmission signals comprising overlapping waveforms |
| 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 |
| US6922448B1 (en) * | 1999-11-17 | 2005-07-26 | Texas Instruments Incorporated | Upstream power back-off |
| US7908172B2 (en) | 2000-03-09 | 2011-03-15 | Impulse Radio Inc | System and method for generating multimedia accompaniments to broadcast data |
| US8396100B2 (en) | 2001-07-17 | 2013-03-12 | Impulse Radio, Inc. | System and method for transmitting digital multimedia data with analog broadcast data |
| US7418043B2 (en) * | 2000-07-19 | 2008-08-26 | Lot 41 Acquisition Foundation, Llc | Software adaptable high performance multicarrier transmission protocol |
| EP1302045A2 (en) | 2000-07-21 | 2003-04-16 | PMC-Sierra Ltd. | Reduction of peak to average power ratio |
| US8670390B2 (en) | 2000-11-22 | 2014-03-11 | Genghiscomm Holdings, LLC | Cooperative beam-forming in wireless networks |
| US20020168016A1 (en) * | 2001-03-14 | 2002-11-14 | Xianbin Wang | Method and apparatus for reducing peak to average power ratio in a multi-carrier modulation communication system |
| US7127005B2 (en) * | 2001-03-23 | 2006-10-24 | James Stuart Wight | Computational circuits and methods for processing modulated signals having non-constant envelopes |
| US10931338B2 (en) | 2001-04-26 | 2021-02-23 | Genghiscomm Holdings, LLC | Coordinated multipoint systems |
| US10355720B2 (en) | 2001-04-26 | 2019-07-16 | Genghiscomm Holdings, LLC | Distributed software-defined radio |
| US9819449B2 (en) | 2002-05-14 | 2017-11-14 | Genghiscomm Holdings, LLC | Cooperative subspace demultiplexing in content delivery networks |
| US20030063663A1 (en) * | 2001-10-01 | 2003-04-03 | Bryant Paul Henry | Multistage equalizer that corrects for linear and nonlinear distortion in a digitally-modulated signal |
| US20030067990A1 (en) * | 2001-10-01 | 2003-04-10 | Bryant Paul Henry | Peak to average power ratio reduction in a digitally-modulated signal |
| 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 |
| US7054385B2 (en) * | 2001-10-22 | 2006-05-30 | Tropian, Inc. | Reduction of average-to-minimum power ratio in communications signals |
| US20070211829A1 (en) * | 2001-10-22 | 2007-09-13 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for pulse optimization for non-linear filtering |
| FR2832275B1 (fr) * | 2001-11-12 | 2004-11-19 | Evolium Sas | Procede d'ecretage de signaux a plusieurs porteuses transmis par un meme amplificateur non-lineaire |
| US10200227B2 (en) | 2002-05-14 | 2019-02-05 | Genghiscomm Holdings, LLC | Pre-coding in multi-user MIMO |
| US9628231B2 (en) | 2002-05-14 | 2017-04-18 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
| US10142082B1 (en) | 2002-05-14 | 2018-11-27 | Genghiscomm Holdings, LLC | Pre-coding in OFDM |
| US10644916B1 (en) | 2002-05-14 | 2020-05-05 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
| US7260054B2 (en) * | 2002-05-30 | 2007-08-21 | Denso Corporation | SINR measurement method for OFDM communications systems |
| KR100631243B1 (ko) | 2002-06-21 | 2006-10-02 | 엘지전자 주식회사 | 비디오 데이터의 재생을 관리하기 위한 데이터 구조를갖는 기록 매체 |
| KR100582957B1 (ko) | 2002-06-21 | 2006-05-23 | 엘지전자 주식회사 | 비디오 데이터의 재생을 관리하기 위한 데이터 구조를 갖는기록 매체 |
| EP1516332A4 (en) | 2002-06-24 | 2009-07-22 | Lg Electronics Inc | RECORDING MEDIUM WITH A DATA STRUCTURE FOR MANAGING THE REPRODUCTION OF MULTI-TITLE VIDEO DATA RECORDED THEREFROM AND PLAYBACK PROCESSES AND DEVICES |
| CN1565028B (zh) | 2002-06-24 | 2010-05-26 | Lg电子株式会社 | 记录和再现方法及装置 |
| KR20040000290A (ko) | 2002-06-24 | 2004-01-03 | 엘지전자 주식회사 | 고밀도 광디스크의 멀티 경로 데이터 스트림 관리방법 |
| KR100866181B1 (ko) * | 2002-07-30 | 2008-10-30 | 삼성전자주식회사 | 통신 시스템에서 신호 송수신 방법 및 장치 |
| JP4431043B2 (ja) | 2002-10-14 | 2010-03-10 | エルジー エレクトロニクス インコーポレイティド | 記録された複数のオーディオストリームの再生を管理するためのデータ構造を有する光ディスク、それによる記録及び再生方法及び装置 |
| ATE547792T1 (de) | 2002-10-15 | 2012-03-15 | Lg Electronics Inc | Aufzeichnungsmedium mit einer datenstruktur zur verwaltung der wiedergabe mehrerer darauf aufgezeichneter grafikströme und aufzeichnungs- und wiedergabeverfahren und vorrichtungen |
| CN100483967C (zh) * | 2002-12-31 | 2009-04-29 | 中国科学技术大学 | 一种控制峰值功率的发射机和接收机 |
| US7606463B2 (en) | 2003-02-24 | 2009-10-20 | Lg Electronics, Inc. | Recording medium having data structure for managing playback control and recording and reproducing methods and apparatuses |
| US7693394B2 (en) | 2003-02-26 | 2010-04-06 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of data streams recorded thereon and recording and reproducing methods and apparatuses |
| US7809775B2 (en) | 2003-02-27 | 2010-10-05 | Lg Electronics, Inc. | Recording medium having data structure for managing playback control recorded thereon and recording and reproducing methods and apparatuses |
| WO2004077417A1 (en) | 2003-02-28 | 2004-09-10 | Lg Electronics Inc. | Recording medium having data structure for managing random/shuffle reproduction of video data recorded thereon and recording and reproducing methods and apparatuses |
| US7620301B2 (en) | 2003-04-04 | 2009-11-17 | Lg Electronics Inc. | System and method for resuming playback |
| GB2401516A (en) * | 2003-04-17 | 2004-11-10 | Univ Southampton | Peak-to-average power ratio reduction by subtracting shaped pulses from a baseband signal |
| US7103111B2 (en) * | 2003-06-16 | 2006-09-05 | Motorola, Inc. | System and method for generating a spectral efficient root raised cosine (RRC) pulse for increasing spectral efficiency |
| WO2005020529A1 (en) * | 2003-08-22 | 2005-03-03 | Koninklijke Philips Electronics N.V. | Backward compatible multi-carrier transmission system |
| US7542517B2 (en) * | 2004-02-02 | 2009-06-02 | Ibiquity Digital Corporation | Peak-to-average power reduction for FM OFDM transmission |
| CN1965553B (zh) * | 2004-03-12 | 2010-05-26 | 株式会社Ntt都科摩 | 生成误差信号的设备和方法 |
| JP4436409B2 (ja) * | 2004-03-12 | 2010-03-24 | 株式会社エヌ・ティ・ティ・ドコモ | クリッピングおよび修正されたコンステレーションを用いるofdmにおけるピーク低減 |
| US8166299B2 (en) | 2004-07-06 | 2012-04-24 | Andrew Christopher Kemshall | Secure messaging |
| US8141118B2 (en) * | 2004-07-26 | 2012-03-20 | Microsoft Corporation | Data broadcasting receiver power management |
| US11184037B1 (en) | 2004-08-02 | 2021-11-23 | Genghiscomm Holdings, LLC | Demodulating and decoding carrier interferometry signals |
| US11552737B1 (en) | 2004-08-02 | 2023-01-10 | Genghiscomm Holdings, LLC | Cooperative MIMO |
| US11431386B1 (en) | 2004-08-02 | 2022-08-30 | Genghiscomm Holdings, LLC | Transmit pre-coding |
| US7474707B2 (en) * | 2004-09-09 | 2009-01-06 | Ibiquity Digital Corporation | Bandwidth reduction of an FM broadcast signal using a baseband precompensation technique |
| CN100364302C (zh) * | 2005-01-28 | 2008-01-23 | 北京北广科数字广播电视技术有限公司 | 模拟调幅中波广播发射机数字化改造的数字音频处理方法 |
| US7453953B2 (en) * | 2005-06-01 | 2008-11-18 | Motorola, Inc. | System and method for enlarging amplitude minima in a linear modulation signal |
| US7653122B2 (en) * | 2005-06-01 | 2010-01-26 | University Of Maryland | Method and system for power controlled effective allocation of sub-bands in ultra-wideband communication |
| US20060291584A1 (en) * | 2005-06-28 | 2006-12-28 | Harris Corporation | Composite crest factor reduction |
| US8280420B2 (en) * | 2006-04-03 | 2012-10-02 | Qualcomm Incorporated | Multi-level saturation |
| US8064537B2 (en) * | 2006-11-03 | 2011-11-22 | Qualcomm Incorporated | Method and apparatus for dynamically adjusting a transmission power spectral density of pilot and data symbols |
| KR100902017B1 (ko) * | 2007-12-28 | 2009-06-15 | 포스데이타 주식회사 | 직교주파수분할다중접속 방식의 단말기에서 부반송파의크기 조정을 위한 송신 장치 및 방법 |
| GB0810855D0 (en) * | 2008-06-13 | 2008-07-23 | Gigle Semiconductors Ltd | Method system and computer program for improving a communication system |
| GB2461904B (en) * | 2008-07-17 | 2011-02-02 | Martin Tomlinson | Handoff communication system for internet radio |
| WO2010027768A2 (en) * | 2008-08-25 | 2010-03-11 | Aware, Inc. | Transmit psd ceiling in packet-based ofdm systems |
| CN102025682B (zh) * | 2010-12-24 | 2013-05-01 | 北京邮电大学 | 全光ofdm系统发射机装置、ofdm系统及处理信号的方法 |
| US8798196B2 (en) | 2011-01-25 | 2014-08-05 | Ibiquity Digital Corporation | Peak-to-average power ratio reduction for hybrid FM HD radio transmission |
| US20130044836A1 (en) * | 2011-08-18 | 2013-02-21 | Vyycore Ltd. | Device and method for pre-distorting and amplifying a signal based on an error attribute |
| US20130113559A1 (en) * | 2011-11-08 | 2013-05-09 | Vyycore Ltd. | Device and method for pre-distorting and amplifying a signal based on an error attribute |
| RU2527478C2 (ru) * | 2012-10-03 | 2014-09-10 | Федеральное государственное бюджетное учреждение науки Институт проблем проектирования в микроэлектронике Российской академии наук (ИППМ РАН) | Энергоэффективные передатчик и приемник сигналов в проводной линии связи с устройством переключения режимов |
| US9191256B2 (en) | 2012-12-03 | 2015-11-17 | Digital PowerRadio, LLC | Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems |
| US8595590B1 (en) | 2012-12-03 | 2013-11-26 | Digital PowerRadio, LLC | Systems and methods for encoding and decoding of check-irregular non-systematic IRA codes |
| US8948272B2 (en) | 2012-12-03 | 2015-02-03 | Digital PowerRadio, LLC | Joint source-channel decoding with source sequence augmentation |
| US12224860B1 (en) | 2014-01-30 | 2025-02-11 | Genghiscomm Holdings, LLC | Linear coding in decentralized networks |
| US9178740B1 (en) | 2014-08-26 | 2015-11-03 | Ibiquity Digital Corporation | Peak-to-average power ratio reduction for QAM modulation with HD radio signals |
| KR102262735B1 (ko) * | 2015-01-27 | 2021-06-09 | 한국전자통신연구원 | 시간 영역에서의 papr 감소를 위한 송신 신호 처리 방법 및 장치 |
| CA2887751C (en) | 2015-04-10 | 2023-09-05 | Nautel Limited | Multiplex of high definition radio stations |
| FR3039730B1 (fr) * | 2015-07-27 | 2017-07-21 | Thales Sa | Reduction du facteur de crete d'une voie d'emission d'un signal mono-porteuse. |
| US10637705B1 (en) | 2017-05-25 | 2020-04-28 | Genghiscomm Holdings, LLC | Peak-to-average-power reduction for OFDM multiple access |
| US10243773B1 (en) | 2017-06-30 | 2019-03-26 | Genghiscomm Holdings, LLC | Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM |
| US11343823B2 (en) | 2020-08-16 | 2022-05-24 | Tybalt, Llc | Orthogonal multiple access and non-orthogonal multiple access |
| US11917604B2 (en) | 2019-01-25 | 2024-02-27 | Tybalt, Llc | Orthogonal multiple access and non-orthogonal multiple access |
| US12206535B1 (en) | 2018-06-17 | 2025-01-21 | Tybalt, Llc | Artificial neural networks in wireless communication systems |
| 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 |
| EP3915236A4 (en) | 2019-01-25 | 2023-05-24 | Genghiscomm Holdings, LLC | ORTHOGONAL MULTI-ACCESS AND NON-ORTHOGONAL MULTI-ACCESS |
| WO2020242898A1 (en) | 2019-05-26 | 2020-12-03 | Genghiscomm Holdings, LLC | Non-orthogonal multiple access |
| CA3070530A1 (en) | 2020-01-30 | 2021-07-30 | Nautel Limited | Iboc compatible superposition modulation by independent modulators utilizing clipping noise from peak-to-average power reduction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610908A (en) * | 1992-09-07 | 1997-03-11 | British Broadcasting Corporation | Digital signal transmission system using frequency division multiplex |
| EP0907276A1 (en) * | 1997-06-30 | 1999-04-07 | Harris Corporation | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370622A (en) * | 1981-03-23 | 1983-01-25 | Rockwell International Corporation | IMD Limiter |
| JPH03198407A (ja) * | 1989-12-26 | 1991-08-29 | Mitsubishi Electric Corp | 線形増幅器 |
| US5381449A (en) * | 1990-06-12 | 1995-01-10 | Motorola, Inc. | Peak to average power ratio reduction methodology for QAM communications systems |
| US5201071A (en) * | 1990-09-26 | 1993-04-06 | Rockwell International Corporation | Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power |
| RU2019041C1 (ru) * | 1991-04-26 | 1994-08-30 | Борис Иванович Волков | Система цифрового стереофонического радиовещания |
| 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 |
| US5300894A (en) * | 1992-10-20 | 1994-04-05 | At&T Bell Laboratories | Circuitry for minimizing peak power in an amplifier carrying a plurality of signals of differing frequencies |
| US5359601A (en) * | 1992-10-30 | 1994-10-25 | Scientific-Atlanta, Inc. | Apparatus providing dynamic virtual service selection in a multi-service communications system |
| FR2707127A1 (fr) * | 1993-06-29 | 1995-01-06 | Philips Laboratoire Electroniq | Système de transmission numérique à prédisposition. |
| JP3420613B2 (ja) * | 1993-06-30 | 2003-06-30 | 日本無線株式会社 | 直交変調器 |
| US5349300A (en) * | 1993-08-10 | 1994-09-20 | Motorola, Inc. | Method and apparatus for controlling a peak envelope power of a PA |
| 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 |
| US5621762A (en) * | 1995-06-12 | 1997-04-15 | Motorola, Inc. | Radio with peak power and bandwidth efficient modulation |
| US5606578A (en) * | 1995-06-26 | 1997-02-25 | Motorola, Inc. | Radio with peak power and bandwidth efficient modulation using asymmetric symbol constellations |
| US5727026A (en) * | 1995-11-15 | 1998-03-10 | Motorola, Inc. | Method and apparatus for peak suppression using complex scaling values |
| US5710990A (en) * | 1996-03-21 | 1998-01-20 | Motorola, Inc. | Transmitter which adjusts peak-to-average power of a multicarrier signal by switching between a group of channels and a phase-adjusted group of channels |
| US5796784A (en) * | 1996-03-27 | 1998-08-18 | Motorola, Inc. | Method and apparatus for modifying amplitude of at least one symbol |
| US5696794A (en) * | 1996-04-04 | 1997-12-09 | Motorola, Inc. | Method and apparatus for conditioning digitally modulated signals using channel symbol adjustment |
| US5815532A (en) * | 1996-05-01 | 1998-09-29 | Glenayre Electronics, Inc. | Method and apparatus for peak-to-average ratio control in an amplitude modulation paging transmitter |
| US5949796A (en) * | 1996-06-19 | 1999-09-07 | Kumar; Derek D. | In-band on-channel digital broadcasting method and system |
| JPH1051418A (ja) * | 1996-08-06 | 1998-02-20 | Mitsubishi Electric Corp | ディジタル受信装置 |
| US5970053A (en) * | 1996-12-24 | 1999-10-19 | Rdl, Inc. | Method and apparatus for controlling peak factor of coherent frequency-division-multiplexed systems |
| FR2758030B1 (fr) * | 1996-12-31 | 1999-03-26 | Sgs Thomson Microelectronics | Procede et dispositif de mise en forme d'un bruit d'ecretage d'une modulation multiporteuse |
| US6049707A (en) * | 1997-09-02 | 2000-04-11 | Motorola, Inc. | Broadband multicarrier amplifier system and method using envelope elimination and restoration |
| FR2771242B1 (fr) * | 1997-11-14 | 2003-10-24 | Itis | Procede et dispositif pour reduire le facteur de crete de signaux de radiodiffusion ou telediffusion numerique |
-
1999
- 1999-08-24 US US09/379,780 patent/US6128350A/en not_active Expired - Lifetime
-
2000
- 2000-08-23 WO PCT/US2000/023184 patent/WO2001015402A1/en not_active Ceased
- 2000-08-23 MX MXPA02001364A patent/MXPA02001364A/es active IP Right Grant
- 2000-08-23 AT AT00957735T patent/ATE308187T1/de not_active IP Right Cessation
- 2000-08-23 DE DE60023513T patent/DE60023513T2/de not_active Expired - Lifetime
- 2000-08-23 JP JP2001519004A patent/JP4574095B2/ja not_active Expired - Lifetime
- 2000-08-23 AU AU69310/00A patent/AU765568B2/en not_active Ceased
- 2000-08-23 KR KR1020027002373A patent/KR100623830B1/ko not_active Expired - Lifetime
- 2000-08-23 BR BRPI0013532-1A patent/BR0013532B1/pt not_active IP Right Cessation
- 2000-08-23 CA CA002385125A patent/CA2385125C/en not_active Expired - Fee Related
- 2000-08-23 RU RU2002107308/09A patent/RU2234199C2/ru active
- 2000-08-23 CN CNB00811918XA patent/CN1205793C/zh not_active Expired - Lifetime
- 2000-08-23 EP EP00957735A patent/EP1206866B1/en not_active Expired - Lifetime
- 2000-08-24 AR ARP000104390A patent/AR027843A1/es active IP Right Grant
- 2000-10-17 TW TW089117082A patent/TW519804B/zh not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610908A (en) * | 1992-09-07 | 1997-03-11 | British Broadcasting Corporation | Digital signal transmission system using frequency division multiplex |
| EP0907276A1 (en) * | 1997-06-30 | 1999-04-07 | Harris Corporation | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020036846A (ko) | 2002-05-16 |
| KR100623830B1 (ko) | 2006-09-18 |
| DE60023513D1 (de) | 2005-12-01 |
| JP2003507968A (ja) | 2003-02-25 |
| CA2385125A1 (en) | 2001-03-01 |
| EP1206866A1 (en) | 2002-05-22 |
| JP4574095B2 (ja) | 2010-11-04 |
| US6128350A (en) | 2000-10-03 |
| TW519804B (en) | 2003-02-01 |
| AR027843A1 (es) | 2003-04-16 |
| BR0013532B1 (pt) | 2014-09-02 |
| CN1370365A (zh) | 2002-09-18 |
| AU6931000A (en) | 2001-03-19 |
| RU2234199C2 (ru) | 2004-08-10 |
| CN1205793C (zh) | 2005-06-08 |
| ATE308187T1 (de) | 2005-11-15 |
| DE60023513T2 (de) | 2006-07-20 |
| BR0013532A (pt) | 2002-04-30 |
| CA2385125C (en) | 2008-06-03 |
| WO2001015402A1 (en) | 2001-03-01 |
| MXPA02001364A (es) | 2002-07-30 |
| EP1206866B1 (en) | 2005-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU765568B2 (en) | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems | |
| US9426013B2 (en) | OFDM communications methods and apparatus | |
| AU2005211103B2 (en) | Peak-to-average power reduction for FM OFDM transmission | |
| CA2185003C (en) | Method and apparatus for am compatible digital broadcasting | |
| US5610908A (en) | Digital signal transmission system using frequency division multiplex | |
| EP1676407B1 (en) | System and method for reducing peak-to-average power ratio for multi-carrier communication systems | |
| CN100454793C (zh) | 减少ofdm移动通信系统峰值平均功率比的设备和方法 | |
| EP0840972A1 (en) | Filter for multicarrier communication system and method for peak power control therein | |
| KR20040077301A (ko) | 동일 심볼을 다수의 채널에 중복적으로 전송하여 통신거리를 확장시킨 무선 랜 시스템의 직교 주파수 분할다중화 송수신 장치 및 그 송수신 방법 | |
| US20040218521A1 (en) | Method for data communication between a single-carrier system and a multi-carrier system | |
| CN100566224C (zh) | 用于数字调制信号中脉冲重叠预补偿的方法和装置 | |
| US20060126764A1 (en) | Processing of an OFDM signal | |
| US20070058743A1 (en) | OFDM communications system employing crest factor reduction with ISI control | |
| Rini et al. | PAPR and ICR reduction in OFDM using combined SLM with clipping and filtering | |
| IL114173A (en) | Method and apparatus for am compatible digital broadcasting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |