DE60002437D1 - Signalverarbeitungsvorrichtung - Google Patents

Signalverarbeitungsvorrichtung

Info

Publication number
DE60002437D1
DE60002437D1 DE60002437T DE60002437T DE60002437D1 DE 60002437 D1 DE60002437 D1 DE 60002437D1 DE 60002437 T DE60002437 T DE 60002437T DE 60002437 T DE60002437 T DE 60002437T DE 60002437 D1 DE60002437 D1 DE 60002437D1
Authority
DE
Germany
Prior art keywords
processing device
signal processing
signal
processing
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
DE60002437T
Other languages
English (en)
Other versions
DE60002437T2 (de
Inventor
Peter Kenington
Andrew Bateman
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.)
Commscope Technologies LLC
Original Assignee
Wireless Systems International Ltd
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
Priority claimed from GB9903179A external-priority patent/GB2347031B/en
Priority claimed from GBGB9907435.3A external-priority patent/GB9907435D0/en
Application filed by Wireless Systems International Ltd filed Critical Wireless Systems International Ltd
Application granted granted Critical
Publication of DE60002437D1 publication Critical patent/DE60002437D1/de
Publication of DE60002437T2 publication Critical patent/DE60002437T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Amplifiers (AREA)
DE60002437T 1999-02-12 2000-01-25 Signalverarbeitungsvorrichtung Expired - Fee Related DE60002437T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9903179A GB2347031B (en) 1999-02-12 1999-02-12 Signal processing means
GB9903179 1999-02-12
GBGB9907435.3A GB9907435D0 (en) 1999-03-31 1999-03-31 Signal processing apparatus
GB9907435 1999-03-31
PCT/GB2000/000194 WO2000048308A1 (en) 1999-02-12 2000-01-25 Signal processing apparatus

Publications (2)

Publication Number Publication Date
DE60002437D1 true DE60002437D1 (de) 2003-06-05
DE60002437T2 DE60002437T2 (de) 2004-04-01

Family

ID=26315124

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60002437T Expired - Fee Related DE60002437T2 (de) 1999-02-12 2000-01-25 Signalverarbeitungsvorrichtung

Country Status (5)

Country Link
US (1) US6580320B1 (de)
EP (1) EP1151531B1 (de)
AU (1) AU3067400A (de)
DE (1) DE60002437T2 (de)
WO (1) WO2000048308A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3696121B2 (ja) 2001-04-27 2005-09-14 株式会社日立国際電気 歪み改善回路
GB0123494D0 (en) 2001-09-28 2001-11-21 Roke Manor Research Polynormial pre-disorter
GB2382480B (en) * 2001-11-22 2005-03-30 Roke Manor Research Power amplifier arrangements
DE60306619T2 (de) * 2002-01-18 2007-06-28 Siemens Ag Verbesserung an oder bezüglich leistungsverstärkern
US7170342B2 (en) 2002-12-10 2007-01-30 Ntt Docomo, Inc. Linear power amplification method and linear power amplifier
US7330517B2 (en) 2003-11-24 2008-02-12 P-Wave Ltd. Amplifier linearization using non-linear predistortion
JP4255849B2 (ja) * 2004-01-29 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ べき級数型ディジタルプリディストータ
JP4505238B2 (ja) * 2004-02-25 2010-07-21 株式会社日立国際電気 歪補償回路
JP4598414B2 (ja) * 2004-02-27 2010-12-15 株式会社エヌ・ティ・ティ・ドコモ べき級数型プリディストータの制御方法及び装置
US8510374B2 (en) * 2010-09-24 2013-08-13 Microsoft Corporation Polling protocol for automatic load limiting
WO2014004525A1 (en) 2012-06-27 2014-01-03 Analog Devices, Inc. Digital pre-distortion
US10122391B2 (en) * 2015-09-30 2018-11-06 Apple Inc. Radio frequency systems and methods for polar phase distortion calibration

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3047292A1 (de) * 1980-12-16 1982-07-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "entzerrer mit laufzeitgliedern und bewertungsgliedern"
GB2204202B (en) 1987-04-28 1991-11-27 Racal Communications Equip Radio transmitters
JPH0771118B2 (ja) 1989-12-27 1995-07-31 三菱電機株式会社 変調装置
US5252930A (en) 1989-09-07 1993-10-12 Ortel Corporation Predistorter for linearization of electronic and optical signals
EP0465709A1 (de) * 1990-07-12 1992-01-15 Thomcast Ag Verfahren zur Kompensation von Nichtlinearitäten einer Verstärkerschaltung
US5193224A (en) 1991-04-24 1993-03-09 Northern Telecom Limited Adaptive phase control for a power amplifier predistorter
US5321710A (en) * 1993-04-19 1994-06-14 Raynet Corporation Predistortion method and apparatus for laser linearization
US5424680A (en) * 1993-11-30 1995-06-13 Harmonic Lightwaves, Inc. Predistorter for high frequency optical communications devices
KR100217416B1 (ko) 1995-11-16 1999-09-01 윤종용 선형 증폭 장치 및 방법
US5770971A (en) 1996-07-26 1998-06-23 Northern Telecom Limited Distortion compensation control for a power amplifier
US5850305A (en) * 1996-12-18 1998-12-15 Scientific-Atlanta, Inc. Adaptive predistortion control for optical external modulation
GB9804745D0 (en) * 1998-03-06 1998-04-29 Wireless Systems Int Ltd Predistorter
GB9804835D0 (en) * 1998-03-06 1998-04-29 Wireless Systems Int Ltd Predistorter
GB2339354B (en) * 1998-07-02 2003-10-08 Wireless Systems Int Ltd A predistorter
US6166601A (en) * 1999-01-07 2000-12-26 Wiseband Communications Ltd. Super-linear multi-carrier power amplifier

Also Published As

Publication number Publication date
WO2000048308A1 (en) 2000-08-17
EP1151531B1 (de) 2003-05-02
DE60002437T2 (de) 2004-04-01
US6580320B1 (en) 2003-06-17
EP1151531A1 (de) 2001-11-07
AU3067400A (en) 2000-08-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ANDREW CORP., CHICAGO, III, US

8339 Ceased/non-payment of the annual fee