SG71776A1 - A peak clipping circuit provided in quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals - Google Patents

A peak clipping circuit provided in quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals

Info

Publication number
SG71776A1
SG71776A1 SG1998000758A SG1998000758A SG71776A1 SG 71776 A1 SG71776 A1 SG 71776A1 SG 1998000758 A SG1998000758 A SG 1998000758A SG 1998000758 A SG1998000758 A SG 1998000758A SG 71776 A1 SG71776 A1 SG 71776A1
Authority
SG
Singapore
Prior art keywords
clipping
peak
quadrature
phase
circuit provided
Prior art date
Application number
SG1998000758A
Other languages
English (en)
Inventor
Hiroyasu Muto
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of SG71776A1 publication Critical patent/SG71776A1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
SG1998000758A 1997-04-21 1998-04-20 A peak clipping circuit provided in quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals SG71776A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9103614A JP3033708B2 (ja) 1997-04-21 1997-04-21 ピーククリッピング回路および該ピーククリッピング回路を有する直交変調送信機

Publications (1)

Publication Number Publication Date
SG71776A1 true SG71776A1 (en) 2000-04-18

Family

ID=14358660

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998000758A SG71776A1 (en) 1997-04-21 1998-04-20 A peak clipping circuit provided in quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals

Country Status (6)

Country Link
US (1) US6044117A (de)
EP (1) EP0874501A3 (de)
JP (1) JP3033708B2 (de)
KR (1) KR100250022B1 (de)
BR (1) BR9801945A (de)
SG (1) SG71776A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363109B1 (en) * 1998-02-03 2002-03-26 Texas Instruments Incorporated Methods and device for estimating and correcting clipping in a discrete multi-tone communications system
JP2001069184A (ja) * 1999-08-31 2001-03-16 Matsushita Electric Ind Co Ltd リミッタ方法およびリミッタ装置
GB2377141B (en) * 2001-06-29 2005-03-23 Nokia Corp A transmitter
KR100458123B1 (ko) * 2002-05-16 2004-11-20 전자부품연구원 무선 이동통신 시스템에서의 데이터 전송 장치
JP4424081B2 (ja) 2004-06-14 2010-03-03 ミツミ電機株式会社 振幅変調装置及び振幅制限方法並びにコンピュータで読み取り可能なプログラム
KR100705443B1 (ko) * 2004-12-11 2007-04-09 한국전자통신연구원 직교주파수 분할 다중 접속 시스템의 송신기용 디지털클리핑 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843626A (en) * 1986-07-10 1989-06-27 Werrbach Donn R Multiband limiter with automatic limiting threshold (ALT) compensation
JPH01248812A (ja) * 1988-03-30 1989-10-04 Toshiba Corp デジタルクリップ回路
JP2806997B2 (ja) * 1989-11-15 1998-09-30 株式会社日立製作所 復調器
FI89846C (fi) * 1991-11-29 1993-11-25 Nokia Mobile Phones Ltd En deviationsbegraensare foer en fraon en radiotelefon utsaend signal
JPH0777433A (ja) * 1993-06-30 1995-03-20 Mazda Motor Corp 自動車の走行域認識装置
JP2787894B2 (ja) * 1994-05-30 1998-08-20 日本電気株式会社 マルチキャリアディジタル変調用包絡線制御変調装置
JPH08191456A (ja) * 1995-01-06 1996-07-23 Matsushita Electric Ind Co Ltd 色差信号クリップ回路
JP3455934B2 (ja) * 1995-04-11 2003-10-14 日本電信電話株式会社 変調器
JP2718398B2 (ja) * 1995-06-30 1998-02-25 日本電気株式会社 Ｃｄｍａ基地局送信装置
US5751774A (en) * 1996-04-04 1998-05-12 Lucent Technologies Inc. Transmission system for digital audio broadcasting

Also Published As

Publication number Publication date
JPH10294766A (ja) 1998-11-04
EP0874501A2 (de) 1998-10-28
EP0874501A3 (de) 2001-07-18
US6044117A (en) 2000-03-28
BR9801945A (pt) 1999-06-29
KR100250022B1 (ko) 2000-03-15
JP3033708B2 (ja) 2000-04-17
KR19980081587A (ko) 1998-11-25

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