+

WO2009031260A1 - 位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置 - Google Patents

位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置 Download PDF

Info

Publication number
WO2009031260A1
WO2009031260A1 PCT/JP2008/001824 JP2008001824W WO2009031260A1 WO 2009031260 A1 WO2009031260 A1 WO 2009031260A1 JP 2008001824 W JP2008001824 W JP 2008001824W WO 2009031260 A1 WO2009031260 A1 WO 2009031260A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase error
section
filtering
processing device
reference value
Prior art date
Application number
PCT/JP2008/001824
Other languages
English (en)
French (fr)
Inventor
Kouji Okamoto
Kouhei Nakata
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to CN2008800009032A priority Critical patent/CN101548326B/zh
Priority to JP2009502372A priority patent/JP4944943B2/ja
Priority to US12/439,966 priority patent/US8188795B2/en
Publication of WO2009031260A1 publication Critical patent/WO2009031260A1/ja

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • G11B20/10425—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors by counting out-of-lock events of a PLL
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

　同期型再生信号処理装置において、再生データとクロックとの位相誤差を検出することを繰り返してその位相誤差に基づいて再生信号と同期したクロックを生成するに際し、フィルタ処理部３４は、位相誤差算出部３３からの現時点より前の位相誤差系列に対して、例えば複数タップのＦＩＲフィルタで重み付け加算を行うフィルタ処理を行って、その位相誤差系列に混入されたノイズの影響を軽減した基準値をフィードバック補正して生成する。クロス検出部３２は、サンプリングされた再生データが前記フィルタ処理部３４で生成された基準値をクロスしたタイミングを検出する。従って、そのフィードバックされる基準値のダイナミックレンジを制限することなく有効に活用できると共に、ノイズ耐性の強化が同時に図られる。
PCT/JP2008/001824 2007-09-03 2008-07-08 位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置 WO2009031260A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008800009032A CN101548326B (zh) 2007-09-03 2008-07-08 相位比较器以及使用它的时钟生成电路、图像显示装置和再现信号处理装置
JP2009502372A JP4944943B2 (ja) 2007-09-03 2008-07-08 位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置
US12/439,966 US8188795B2 (en) 2007-09-03 2008-07-08 Phase comparator and reproduction signal processor using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007227815 2007-09-03
JP2007-227815 2007-09-03

Publications (1)

Publication Number Publication Date
WO2009031260A1 true WO2009031260A1 (ja) 2009-03-12

Family

ID=40428585

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/001824 WO2009031260A1 (ja) 2007-09-03 2008-07-08 位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置

Country Status (4)

Country Link
US (1) US8188795B2 (ja)
JP (1) JP4944943B2 (ja)
CN (1) CN101548326B (ja)
WO (1) WO2009031260A1 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000243041A (ja) * 1999-02-17 2000-09-08 Fujitsu Ltd データ再生システムにおけるクロック調整装置
JP2002358734A (ja) * 2001-05-31 2002-12-13 Fujitsu Ltd データ再生装置に用いられるクロック調整装置、オフセット検出装置及びデータ再生装置
WO2005027122A1 (ja) * 2003-09-09 2005-03-24 Matsushita Electric Industrial Co., Ltd. 位相誤差検出回路及び同期クロック抽出回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH097304A (ja) 1995-06-15 1997-01-10 Pioneer Electron Corp ディジタル信号再生装置
US6445662B1 (en) 1998-12-24 2002-09-03 Victor Company Of Japan, Ltd. Reproducing apparatus
JP3323824B2 (ja) * 1999-02-22 2002-09-09 松下電器産業株式会社 クロック生成回路
JP3337997B2 (ja) * 1999-03-29 2002-10-28 松下電器産業株式会社 周波数検出型位相同期回路
JP2002008315A (ja) 2000-06-22 2002-01-11 Matsushita Electric Ind Co Ltd 光ディスク装置
JP2002216434A (ja) 2001-01-17 2002-08-02 Sharp Corp 位相補正回路及びそれを用いたディスク再生装置
CN1784743A (zh) 2003-09-09 2006-06-07 松下电器产业株式会社 相位误差检测电路及同步时钟抽出电路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000243041A (ja) * 1999-02-17 2000-09-08 Fujitsu Ltd データ再生システムにおけるクロック調整装置
JP2002358734A (ja) * 2001-05-31 2002-12-13 Fujitsu Ltd データ再生装置に用いられるクロック調整装置、オフセット検出装置及びデータ再生装置
WO2005027122A1 (ja) * 2003-09-09 2005-03-24 Matsushita Electric Industrial Co., Ltd. 位相誤差検出回路及び同期クロック抽出回路

Also Published As

Publication number Publication date
CN101548326B (zh) 2012-04-11
JP4944943B2 (ja) 2012-06-06
CN101548326A (zh) 2009-09-30
US20090315878A1 (en) 2009-12-24
US8188795B2 (en) 2012-05-29
JPWO2009031260A1 (ja) 2010-12-09

Similar Documents

Publication Publication Date Title
TWI501157B (zh) 減緩資料檢測回授迴路中之潛時的系統與方法
JP2012528521A5 (ja)
JP2011097559A5 (ja)
CN109459612B (zh) 数字音频信号的采样频率的检测方法及装置
CA2544459A1 (en) Systems and methods for synchronizing audio and video data signals
NO20072884L (no) Fremgangsmate og apparat for a estimere og korrigere basisbandfrekvensfeil i en mottager
TW201143482A (en) Audio processing apparatus and audio processing method
WO2010088016A3 (en) Method and apparatus for detecting and correcting errors in a parallel to serial circuit
TW200627808A (en) Digital signal processor, receiver, corrector and methods for the same
JP2008535316A5 (ja)
CN102264026B (zh) 音讯处理装置及音讯处理方法
WO2009031260A1 (ja) 位相比較器、及びこれを用いたクロック生成回路、映像表示装置及び再生信号処理装置
TW200740123A (en) Methods for adjusting sampling clock of sampling circuit and related apparatuses
US8214066B1 (en) System and method for controlling noise in real-time audio signals
JP2010219679A (ja) 音量調整装置
TWI311437B (en) Apparatus and method for detecting sync signal
WO2007069139A3 (en) Electric counter circuit
TW200637356A (en) Synchronous detector
JPH09219067A (ja) デジタル情報再生装置
TW200633548A (en) Digital processing system and method for tracking subcarrier included in video signal
JP2005318381A (ja) ゼロクロス検出回路、これを用いたクロック再生回路および受信装置
JP2553794B2 (ja) ベロシティエラー検出装置
JPH11298758A (ja) Ａ／ｄ変換装置
JP2008072186A (ja) 同期追従回路
JPH09130753A (ja) 水平同期信号検出装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880000903.2

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2009502372

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 12439966

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08790176

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08790176

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载