IN2012DN05150A - - Google Patents

Download PDF

Info

Publication number
IN2012DN05150A
IN2012DN05150A IN5150DEN2012A IN2012DN05150A IN 2012DN05150 A IN2012DN05150 A IN 2012DN05150A IN 5150DEN2012 A IN5150DEN2012 A IN 5150DEN2012A IN 2012DN05150 A IN2012DN05150 A IN 2012DN05150A
Authority
IN
India
Prior art keywords
mark
shifi
seat
called
adjusted
Prior art date
Application number
Other languages
English (en)
Inventor
Takahiro Kurokawa
Hiroyuki Minemura
Original Assignee
Hitachi Consumer Electronics
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 Hitachi Consumer Electronics filed Critical Hitachi Consumer Electronics
Publication of IN2012DN05150A publication Critical patent/IN2012DN05150A/en

Links

Classifications

    • 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
    • G11B7/0045—Recording
    • G11B7/00456—Recording strategies, e.g. pulse sequences
    • 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
    • G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
    • 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
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G11B20/10277—Improvement or modification of read or write signals bit detection or demodulation methods the demodulation process being specifically adapted to partial response channels, e.g. PRML decoding
    • 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
    • G11B20/10407—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors by verifying the timing of signal transitions, e.g. rising or falling edges, or by analysing signal slopes
    • 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
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Head (AREA)
IN5150DEN2012 2010-01-20 2010-03-02 IN2012DN05150A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010009627A JP4812881B2 (ja) 2010-01-20 2010-01-20 記録条件の調整方法及び光ディスク装置
PCT/JP2010/053300 WO2011089735A1 (fr) 2010-01-20 2010-03-02 Procédé d'ajustement d'une condition d'enregistrement, dispositif de disque optique, et procédé d'enregistrement d'informations

Publications (1)

Publication Number Publication Date
IN2012DN05150A true IN2012DN05150A (fr) 2015-10-23

Family

ID=44306555

Family Applications (1)

Application Number Title Priority Date Filing Date
IN5150DEN2012 IN2012DN05150A (fr) 2010-01-20 2010-03-02

Country Status (10)

Country Link
US (2) US8483028B2 (fr)
EP (1) EP2528059A4 (fr)
JP (1) JP4812881B2 (fr)
CN (1) CN102804267B (fr)
BR (1) BR112012014713A2 (fr)
IN (1) IN2012DN05150A (fr)
MX (1) MX2012006932A (fr)
MY (1) MY173566A (fr)
PH (1) PH12012501238A1 (fr)
WO (1) WO2011089735A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150089481A1 (en) * 2013-09-23 2015-03-26 Infosys Limited Methods, systems and computer-readable media for quantifying a bug detection efficiency of a bug prediction technique
US10915603B2 (en) * 2016-12-09 2021-02-09 Korea Advanced Institute Of Science And Technology Method for estimating suitability as multi-screen projecting type theatre system
US9892752B1 (en) * 2017-06-15 2018-02-13 Seagate Technology Llc Selecting a maximum laser power for a calibration based on a previously measured function
JP6975914B2 (ja) * 2018-03-09 2021-12-01 パナソニックＩｐマネジメント株式会社 光ディスク記録方法、光ディスク装置及び集積回路
CN108962284B (zh) * 2018-07-04 2021-06-08 科大讯飞股份有限公司 一种语音录制方法及装置
CN112181887B (zh) * 2019-07-05 2023-05-26 迈普通信技术股份有限公司 数据传输方法及装置
US12119033B1 (en) * 2023-09-21 2024-10-15 Microsoft Technology Licensing, Llc Beam balancer for optical data writing

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030067998A1 (en) * 2001-07-19 2003-04-10 Matsushita Electric Industrial Co., Ltd. Method for evaluating the quality of read signal and apparatus for reading information
JP3926688B2 (ja) 2001-07-19 2007-06-06 松下電器産業株式会社 再生信号品質評価方法および情報再生装置
US7082566B2 (en) * 2001-11-09 2006-07-25 Kabushiki Kaisha Toshiba Signal quality evaluation method, information recording/reproducing system, and recording compensation method
JP3697409B2 (ja) 2001-11-09 2005-09-21 株式会社東芝 信号品質評価方法および記録補償方法
JP3668202B2 (ja) * 2002-03-13 2005-07-06 株式会社東芝 情報記録再生装置及びその信号評価方法
JP4515716B2 (ja) * 2002-04-03 2010-08-04 パナソニック株式会社 拡大鍵生成装置、暗号化装置および暗号化システム
EP1351430B1 (fr) * 2002-04-03 2005-10-05 Matsushita Electric Industrial Co., Ltd. Dispositif de génération d'une clé étendue, dispositif de chiffrage et système de chiffrage
JP3857685B2 (ja) 2003-01-28 2006-12-13 日本電気株式会社 信号評価方法と情報記録再生装置と情報再生装置及び情報媒体
EP1443509A3 (fr) * 2003-01-28 2006-01-11 Kabushiki Kaisha Toshiba Procédé d'évaluation de signaux, dispositif d'enregistrement/de reproduction d'information, dispositif de reproduction d'information et support d'enregistrement d'information
JP2005092942A (ja) 2003-09-16 2005-04-07 Hitachi Ltd 光ディスク記録方法、光ディスク装置、及び光ディスク
JPWO2005031743A1 (ja) 2003-09-30 2006-12-07 松下電器産業株式会社 評価装置および評価方法
JP4313755B2 (ja) * 2004-05-07 2009-08-12 株式会社日立製作所 再生信号の評価方法および光ディスク装置
CN100570728C (zh) * 2004-05-07 2009-12-16 株式会社日立制作所 再生信号的评价方法以及光盘装置
JPWO2006025421A1 (ja) * 2004-08-31 2008-05-08 中外製薬株式会社 精子膜タンパク質ｏｂｆの利用
JP3711140B2 (ja) 2005-03-07 2005-10-26 株式会社東芝 情報記録再生装置及びその信号評価方法
JP4604924B2 (ja) * 2005-09-09 2011-01-05 株式会社日立製作所 光ディスク記録方法、光ディスク装置、及び光ディスク
JP2008016184A (ja) * 2006-04-28 2008-01-24 Sharp Corp 記録再生装置および記録再生装置の記録マーク形成方法
JP2007317343A (ja) 2006-04-28 2007-12-06 Sharp Corp 記録パラメータ設定装置、そのプログラムおよび該プログラムを記録したコンピュータ読取り可能な記録媒体、情報記録媒体、ならびに記録パラメータ設定方法
JP5089939B2 (ja) 2006-08-11 2012-12-05 ソニーオプティアーク株式会社 記録再生装置、評価値演算方法
JP5057925B2 (ja) * 2007-10-18 2012-10-24 株式会社日立製作所 デジタル情報再生方法
US20090154315A1 (en) * 2007-12-04 2009-06-18 Panasonic Corporation Information recording medium, recording method, recording apparatus and integrated circuit
JP2009170043A (ja) * 2008-01-17 2009-07-30 Nec Corp 記録ストラテジ調整方法および情報記録再生装置
JP5081737B2 (ja) * 2008-06-18 2012-11-28 株式会社日立製作所 光学的情報記録方法、光学的情報再生方法、および光ディスク装置
JP4764939B2 (ja) * 2009-04-14 2011-09-07 株式会社日立製作所 記録条件の調整方法及び光ディスク装置
JP4959749B2 (ja) * 2009-05-08 2012-06-27 株式会社日立製作所 記録条件の調整方法及び光ディスク装置
JP5469390B2 (ja) * 2009-07-15 2014-04-16 日立コンシューマエレクトロニクス株式会社 再生信号評価方法及び記録調整方法

Also Published As

Publication number Publication date
BR112012014713A2 (pt) 2016-03-08
US20120250480A1 (en) 2012-10-04
MX2012006932A (es) 2012-08-23
CN102804267A (zh) 2012-11-28
MY173566A (en) 2020-02-04
EP2528059A1 (fr) 2012-11-28
PH12012501238A1 (en) 2014-09-24
JP2011150748A (ja) 2011-08-04
WO2011089735A1 (fr) 2011-07-28
CN102804267B (zh) 2015-03-25
EP2528059A4 (fr) 2017-04-19
US8743671B2 (en) 2014-06-03
US20130242714A1 (en) 2013-09-19
US8483028B2 (en) 2013-07-09
JP4812881B2 (ja) 2011-11-09

Similar Documents

Publication Publication Date Title
IN2012DN05150A (fr)
EP4059283A4 (fr) Synchronisation précise de transmission de signal de référence de positionnement de liaison latérale
EP4597845A3 (fr) Commande de phase de signal d'horloge basée sur une rétroaction
GB2606654B (en) Self calibration by signal injection
AU2018409250B2 (en) Phase tracking reference signal symbol mapping
EP4064374A4 (fr) Capteur magnétique
EP3982852A4 (fr) Marqueurs à l'écran pour le guidage d'aiguille hors plan
WO2015191732A8 (fr) Systèmes émetteurs-récepteurs à capacité d'apprentissage et procédés de réglage d'un décalage de fréquence de canal
DK3438700T3 (da) Fremgangsmåde til at drive en gnss-modtager, med gnss-signalfravalg
EP3931716A4 (fr) Disposition automatique de visualisations sur la base de données de graphique
GB202100508D0 (en) Synchronization for sidelink based on prioritization for synchronization signals
GB2538392A (en) Ranging using current profiling
WO2012118714A3 (fr) Étalonnage de synchronisation destiné à des systèmes e/s multimodes
EP3780928A4 (fr) Dispositif de chargement automatique de bande
MX2015014793A (es) Calibracion de herramientas de resonancia magnetica nuclear.
EP3994938A4 (fr) Acquisition d'informations d'état de canal
EP4029296A4 (fr) Suivi de capteur passif utilisant une infrastructure existante
TW201614664A (en) Shift register apparatus
EP3827868A3 (fr) Instrument à bobines de circuit flexibles
WO2014145937A3 (fr) Modification d'une résolution de commande
EP3707868A4 (fr) Génération améliorée de signal de référence d'informations d'état de canal
WO2014154510A3 (fr) Arbre de mobile pivotant d'horlogerie
EP2261779A3 (fr) Procédé pour compenser la position de dispositif de pointage et dispositif de pointage l'utilisant
WO2015104129A3 (fr) Objet portable pour la gestion d'une activité annexe
EP4084101A4 (fr) Capteur magnétique