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DE69932411D1 - Digitaer Demodulator - Google Patents

Digitaer Demodulator

Info

Publication number
DE69932411D1
DE69932411D1 DE69932411T DE69932411T DE69932411D1 DE 69932411 D1 DE69932411 D1 DE 69932411D1 DE 69932411 T DE69932411 T DE 69932411T DE 69932411 T DE69932411 T DE 69932411T DE 69932411 D1 DE69932411 D1 DE 69932411D1
Authority
DE
Germany
Prior art keywords
digitaer
demodulator
digitaer demodulator
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
DE69932411T
Other languages
English (en)
Other versions
DE69932411T2 (de
Inventor
Hisakazu Katoh
Akinori Hashimoto
Yuichi Iwadate
Kazuhiko Shibuya
Fumiaki Minematsu
Shigeyuki Itoh
Tomohiro Saito
Kenichi Shiraishi
Akihiro Horii
Shoji Matsuda
Soichi Shinjo
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 DE69932411D1 publication Critical patent/DE69932411D1/de
Publication of DE69932411T2 publication Critical patent/DE69932411T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22Demodulator circuits; Receiver circuits
    • H04L27/227Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0053Closed loops
    • H04L2027/0057Closed loops quadrature phase
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0063Elements of loops
    • H04L2027/0067Phase error detectors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0071Control of loops
    • H04L2027/0075Error weighting
    • H04L2027/0077Error weighting stop and go
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0083Signalling arrangements
    • H04L2027/0089In-band signals
    • H04L2027/0093Intermittant signals
    • H04L2027/0095Intermittant signals in a preamble or similar structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00Arrangements for synchronising receiver with transmitter
    • H04L7/04Speed or phase control by synchronisation signals
    • H04L7/041Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69932411T 1998-01-30 1999-01-29 Digitaler Demodulator Expired - Lifetime DE69932411T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3230398 1998-01-30
JP03230398A JP3392037B2 (ja) 1998-01-30 1998-01-30 ディジタル復調器
PCT/JP1999/000400 WO1999039486A1 (fr) 1998-01-30 1999-01-29 Demodulateur numerique

Publications (2)

Publication Number Publication Date
DE69932411D1 true DE69932411D1 (de) 2006-08-31
DE69932411T2 DE69932411T2 (de) 2006-11-23

Family

ID=12355189

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69932411T Expired - Lifetime DE69932411T2 (de) 1998-01-30 1999-01-29 Digitaler Demodulator
DE1052819T Pending DE1052819T1 (de) 1998-01-30 1999-01-29 Digitaler demodulator

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1052819T Pending DE1052819T1 (de) 1998-01-30 1999-01-29 Digitaler demodulator

Country Status (7)

Country Link
US (1) US6813321B1 (de)
EP (1) EP1052819B1 (de)
JP (1) JP3392037B2 (de)
CN (1) CN1129286C (de)
CA (1) CA2318759C (de)
DE (2) DE69932411T2 (de)
WO (1) WO1999039486A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3438700B2 (ja) * 2000-05-24 2003-08-18 株式会社ケンウッド Bsディジタル放送受信装置及びbsディジタル放送受信方法
EP1620984B1 (de) * 2003-05-05 2008-09-03 Thomson Licensing Adaptive weiche demodulation für den empfang verzerrter signale
US7907639B2 (en) 2003-05-05 2011-03-15 Thomson Licensing Method and apparatus for synchronizing a multi-level modulation signal
US7016433B2 (en) * 2003-06-06 2006-03-21 Interdigital Technology Corporation Method and system for compensating for phase variations intermittently introduced into communication signals by enabling or disabling an amplifier
WO2005076489A1 (ja) * 2004-02-04 2005-08-18 Brother Kogyo Kabushiki Kaisha 無線タグ通信装置
JP4585455B2 (ja) * 2006-01-20 2010-11-24 富士通セミコンダクター株式会社 復調回路および復調方法
JP4229180B2 (ja) * 2006-12-08 2009-02-25 ソニー株式会社 受信装置、制御方法、及びプログラム
EP2752850A4 (de) * 2011-08-30 2016-04-13 Panasonic Ip Man Co Ltd Vorrichtung zur erkennung modulierter signale und verfahren zur erkennung modulierter signale

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556965A (en) 1978-06-30 1980-01-18 Toshiba Corp Carrier wave reproducing device
US4599732A (en) * 1984-04-17 1986-07-08 Harris Corporation Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format
NZ220548A (en) * 1986-06-18 1990-05-28 Fujitsu Ltd Tdm frame synchronising circuit
JP2724145B2 (ja) 1987-03-24 1998-03-09 株式会社日立製作所 搬送波再生装置
US5463627A (en) * 1993-02-23 1995-10-31 Matsushita Electric Industrial Co., Ltd. Frame synchronizing apparatus for quadrature modulation data communication radio receiver
JP3253524B2 (ja) 1996-05-28 2002-02-04 日本放送協会 ディジタル伝送方法および送信、受信装置
US6018556A (en) * 1996-11-21 2000-01-25 Dsp Group, Inc. Programmable loop filter for carrier recovery in a radio receiver
JP3312572B2 (ja) 1997-01-30 2002-08-12 株式会社ケンウッド 放送受信機
JP3017983B2 (ja) * 1997-11-19 2000-03-13 株式会社ケンウッド 同期捕捉回路
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

Also Published As

Publication number Publication date
DE69932411T2 (de) 2006-11-23
CN1129286C (zh) 2003-11-26
JP3392037B2 (ja) 2003-03-31
CA2318759C (en) 2006-06-06
EP1052819B1 (de) 2006-07-19
CN1288627A (zh) 2001-03-21
US6813321B1 (en) 2004-11-02
CA2318759A1 (en) 1999-08-05
EP1052819A1 (de) 2000-11-15
DE1052819T1 (de) 2001-05-03
JPH11220504A (ja) 1999-08-10
EP1052819A4 (de) 2005-10-05
WO1999039486A1 (fr) 1999-08-05

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