DE69838481D1 - Schaltung zur Trägerwiederherstellung - Google Patents

Schaltung zur Trägerwiederherstellung

Info

Publication number
DE69838481D1
DE69838481D1 DE69838481T DE69838481T DE69838481D1 DE 69838481 D1 DE69838481 D1 DE 69838481D1 DE 69838481 T DE69838481 T DE 69838481T DE 69838481 T DE69838481 T DE 69838481T DE 69838481 D1 DE69838481 D1 DE 69838481D1
Authority
DE
Germany
Prior art keywords
circuit
carrier recovery
recovery
carrier
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
DE69838481T
Other languages
English (en)
Other versions
DE69838481T2 (de
Inventor
Akihiro Horii
Kenichi Shiraishi
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.)
Kenwood KK
Original Assignee
Kenwood KK
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 Kenwood KK filed Critical Kenwood KK
Application granted granted Critical
Publication of DE69838481D1 publication Critical patent/DE69838481D1/de
Publication of DE69838481T2 publication Critical patent/DE69838481T2/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
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/02—Algorithm used as input for AFC action alignment receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69838481T 1997-06-06 1998-05-20 Schaltung zur Trägerwiederherstellung Expired - Lifetime DE69838481T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP09163530A JP3080601B2 (ja) 1997-06-06 1997-06-06 搬送波再生回路
JP16353097 1997-06-06
PCT/JP1998/002203 WO1998056148A1 (fr) 1997-06-06 1998-05-20 Circuit de reproduction de porteuse

Publications (2)

Publication Number Publication Date
DE69838481D1 true DE69838481D1 (de) 2007-11-08
DE69838481T2 DE69838481T2 (de) 2008-01-24

Family

ID=15775633

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69838481T Expired - Lifetime DE69838481T2 (de) 1997-06-06 1998-05-20 Schaltung zur Trägerwiederherstellung

Country Status (7)

Country Link
US (1) US6693978B1 (de)
EP (1) EP0993160B1 (de)
JP (1) JP3080601B2 (de)
CN (1) CN1144433C (de)
CA (1) CA2291135C (de)
DE (1) DE69838481T2 (de)
WO (1) WO1998056148A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3084363B2 (ja) * 1997-12-26 2000-09-04 株式会社ケンウッド キャリア再生回路
JP3363768B2 (ja) 1997-12-26 2003-01-08 株式会社ケンウッド ディジタル復調器
US6697440B1 (en) 1998-02-25 2004-02-24 Kabushiki Kaisha Kenwood Demodulator of receiver
JP3252820B2 (ja) 1999-02-24 2002-02-04 日本電気株式会社 復調及び変調回路並びに復調及び変調方法
JP3988392B2 (ja) * 2001-01-24 2007-10-10 日本電気株式会社 携帯無線端末、ａｆｃ制御方法及びａｆｃ制御プログラム
JP2003218968A (ja) 2002-01-22 2003-07-31 Sharp Corp 高周波受信装置
US8736323B2 (en) * 2007-01-11 2014-05-27 International Business Machines Corporation Method and apparatus for on-chip phase error measurement to determine jitter in phase-locked loops

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281412A (en) * 1979-07-05 1981-07-28 Cincinnati Electronics Corporation Method of and apparatus for transmitting and recovering offset QPSK modulated data
JPS6331222A (ja) 1986-07-25 1988-02-09 Hitachi Ltd Ｐｌｌ回路
US5289506A (en) * 1990-02-05 1994-02-22 Sharp Kabushiki Kaisha Automatic frequency control circuit
US5335348A (en) * 1992-01-10 1994-08-02 Nec Corporation Radio receiver having frequency sweep control apparatus
JPH05308253A (ja) 1992-04-28 1993-11-19 Nec Corp 周波数ステップ制御方式
JP2932861B2 (ja) * 1992-10-13 1999-08-09 日本電気株式会社 位相同期検出回路
DE69312221T2 (de) * 1992-11-02 1997-10-30 Matsushita Electric Ind Co Ltd Kanalwähler für digital modulierte Signale
JPH06326735A (ja) 1993-05-12 1994-11-25 N T T Data Tsushin Kk アイパターン信号監視機能付モデム装置及びそれを利用した伝送システム
JP3293959B2 (ja) 1993-07-12 2002-06-17 株式会社東芝 デジタル変調波の同期処理装置
JP3237322B2 (ja) 1993-07-16 2001-12-10 三菱電機株式会社 Ｃｎ比測定手段
JPH0746283A (ja) 1993-07-30 1995-02-14 Nec Corp 搬送波再生同期装置
JP2797916B2 (ja) * 1993-08-05 1998-09-17 日本電気株式会社 搬送波再生回路
JPH07162470A (ja) 1993-12-06 1995-06-23 Matsushita Electric Ind Co Ltd ディジタル受信装置
JPH07177194A (ja) 1993-12-20 1995-07-14 Fujitsu Ltd 復調回路
US6023491A (en) * 1994-06-21 2000-02-08 Matsushita Electric Industrail Co., Ltd. Demodulation apparatus performing different frequency control functions using separately provided oscillators
EP0692896A1 (de) 1994-07-12 1996-01-17 Laboratoires D'electronique Philips S.A.S. Trägerrückwinnung bei QAM
JP3077881B2 (ja) * 1995-03-07 2000-08-21 日本電気株式会社 復調方法及び復調装置
FR2758038B1 (fr) 1996-12-30 1999-01-29 Alsthom Cge Alcatel Dispositif d'estimation de l'ecart de frequence existant entre la frequence porteuse d'un signal numerique et la frequence d'un oscillateur local de reception, et recepteur correspondant
JPH10215149A (ja) * 1997-01-30 1998-08-11 Kenwood Corp 自動周波数制御回路

Also Published As

Publication number Publication date
EP0993160B1 (de) 2007-09-26
DE69838481T2 (de) 2008-01-24
WO1998056148A1 (fr) 1998-12-10
JP3080601B2 (ja) 2000-08-28
US6693978B1 (en) 2004-02-17
CN1259253A (zh) 2000-07-05
EP0993160A1 (de) 2000-04-12
CA2291135A1 (en) 1998-12-10
EP0993160A4 (de) 2005-08-03
CA2291135C (en) 2006-07-11
CN1144433C (zh) 2004-03-31
JPH10341263A (ja) 1998-12-22

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: HORII, AKIHIRO, ZAMA, KANAGAWA, JP

Inventor name: SHIRAISHI, KENICHI, YOKOHAMA, KANAGAWA, JP

8364 No opposition during term of opposition
R082 Change of representative

Ref document number: 993160

Country of ref document: EP

Representative=s name: LEINWEBER & ZIMMERMANN, 80331 MUENCHEN, DE