TWI289296B - Demodulator, disc driving device and phase regulating method - Google Patents

Demodulator, disc driving device and phase regulating method Download PDF

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Publication number
TWI289296B
TWI289296B TW094103846A TW94103846A TWI289296B TW I289296 B TWI289296 B TW I289296B TW 094103846 A TW094103846 A TW 094103846A TW 94103846 A TW94103846 A TW 94103846A TW I289296 B TWI289296 B TW I289296B
Authority
TW
Taiwan
Prior art keywords
reference wave
internal reference
phase
circuit
signal
Prior art date
Application number
TW094103846A
Other languages
English (en)
Chinese (zh)
Other versions
TW200603082A (en
Inventor
Tatsushi Sano
Mitsuru Okabe
Tadaaki Nomoto
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of TW200603082A publication Critical patent/TW200603082A/zh
Application granted granted Critical
Publication of TWI289296B publication Critical patent/TWI289296B/zh

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
    • 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
    • G11B20/10361—Improvement or modification of read or write signals signal quality assessment digital demodulation process
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Rotational Drive Of Disk (AREA)
TW094103846A 2004-02-05 2005-02-05 Demodulator, disc driving device and phase regulating method TWI289296B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004029116A JP4325422B2 (ja) 2004-02-05 2004-02-05 復調装置、ディスクドライブ装置、位相調整方法

Publications (2)

Publication Number Publication Date
TW200603082A TW200603082A (en) 2006-01-16
TWI289296B true TWI289296B (en) 2007-11-01

Family

ID=34879180

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094103846A TWI289296B (en) 2004-02-05 2005-02-05 Demodulator, disc driving device and phase regulating method

Country Status (5)

Country Link
US (1) US7333408B2 (enExample)
JP (1) JP4325422B2 (enExample)
KR (1) KR101161673B1 (enExample)
CN (1) CN100411043C (enExample)
TW (1) TWI289296B (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI301969B (en) * 2004-10-12 2008-10-11 Mediatek Inc Method and apparatus for detecting a physical mark in a signal read from an optical disk
JP2006236421A (ja) 2005-02-22 2006-09-07 Toshiba Corp 記憶媒体、再生方法及び記録方法
US7411465B2 (en) * 2005-07-15 2008-08-12 Watson Industries, Inc. AGC circuit for the reduction of harmonics in the drive signal
US12107559B2 (en) * 2005-09-27 2024-10-01 Ronald Quan Method and apparatus to evaluate audio equipment for dynamic distortions and or differential phase and or frequency modulation effects
KR100739749B1 (ko) * 2005-11-03 2007-07-13 삼성전자주식회사 광 디스크 재생을 위해 톱니 파형워블（ｓａｗ－ｔｏｏｔｈ ｗｏｂｂｌｅ） 신호를 검출하는방법 및 장치
JP4172494B2 (ja) 2006-05-09 2008-10-29 ソニー株式会社 復調装置、ディスクドライブ装置、復調方法
US8355302B1 (en) * 2006-05-11 2013-01-15 Marvell International Ltd. Offset loop for wobble
JP5983077B2 (ja) * 2012-06-15 2016-08-31 ソニー株式会社 光情報記録媒体および再生装置
US9164134B2 (en) 2012-11-13 2015-10-20 Nvidia Corporation High-resolution phase detector
US9471091B2 (en) * 2012-11-28 2016-10-18 Nvidia Corporation Periodic synchronizer using a reduced timing margin to generate a speculative synchronized output signal that is either validated or recalled
JP2014142978A (ja) * 2013-01-22 2014-08-07 Sony Corp 制御装置および制御方法、ならびに原盤作製装置
JP2017017588A (ja) * 2015-07-02 2017-01-19 富士通株式会社 伝送装置、誤り訂正符号の生成方法及び誤り訂正方法
CN109116771B (zh) * 2017-06-22 2020-07-28 东元电机股份有限公司 控制命令产生方法及其装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3494405B2 (ja) 1999-11-01 2004-02-09 株式会社リコー 復調回路、これを用いた情報記録再生装置、位相復調システム及び位相差除去方法
JP4534387B2 (ja) * 2001-03-19 2010-09-01 ソニー株式会社 記録装置および方法、再生装置および方法、記録媒体、プログラム、並びにディスク媒体
JP4121265B2 (ja) * 2001-10-16 2008-07-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ディスク状記録媒体、ディスクドライブ装置並びにディスク製造装置及び方法
JP4121264B2 (ja) 2001-10-16 2008-07-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ディスクドライブ装置及びウォブル情報検出方法
JP4295474B2 (ja) * 2002-05-24 2009-07-15 ソニー株式会社 ディスク記録媒体、ディスクドライブ装置、ディスク製造方法
JP4100048B2 (ja) 2002-05-28 2008-06-11 ソニー株式会社 復調装置、復調方法及び記録再生装置

Also Published As

Publication number Publication date
US20050195511A1 (en) 2005-09-08
KR101161673B1 (ko) 2012-07-02
CN100411043C (zh) 2008-08-13
JP2005222608A (ja) 2005-08-18
US7333408B2 (en) 2008-02-19
TW200603082A (en) 2006-01-16
CN1652238A (zh) 2005-08-10
KR20060041717A (ko) 2006-05-12
JP4325422B2 (ja) 2009-09-02

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