BRPI0902903A2 - método de avaliação de sinal e aparelho de avaliação de sinal - Google Patents
método de avaliação de sinal e aparelho de avaliação de sinalInfo
- Publication number
- BRPI0902903A2 BRPI0902903A2 BRPI0902903A BRPI0902903A BRPI0902903A2 BR PI0902903 A2 BRPI0902903 A2 BR PI0902903A2 BR PI0902903 A BRPI0902903 A BR PI0902903A BR PI0902903 A BRPI0902903 A BR PI0902903A BR PI0902903 A2 BRPI0902903 A2 BR PI0902903A2
- Authority
- BR
- Brazil
- Prior art keywords
- signal evaluation
- evaluation method
- evaluation apparatus
- signal
- evaluation
- Prior art date
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
- G11B20/10009—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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
-
- 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
- G11B20/10046—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
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
-
- 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
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
- G11B20/10111—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom partial response PR(1,2,2,1)
-
- 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
- G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
- G11B20/1012—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom partial response PR(1,2,2,2,1)
-
- 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
- G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
- G11B20/10287—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors
- G11B20/10296—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors using the Viterbi algorithm
-
- 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
- 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
- G11B20/1037—Improvement or modification of read or write signals signal quality assessment digital demodulation process based on hard decisions, e.g. by evaluating bit error rates before or after ECC 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
-
- 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
- G11B20/10472—Improvement or modification of read or write signals signal quality assessment derived from statistics of other quality measures, e.g. their mean, variance or skew
-
- 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
- G11B20/10481—Improvement or modification of read or write signals optimisation methods
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
- G11B20/182—Testing using test patterns
-
- 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
- G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
- G11B20/225—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter
-
- 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
-
- 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)
- Probability & Statistics with Applications (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3211208P | 2008-02-28 | 2008-02-28 | |
US4826208P | 2008-04-28 | 2008-04-28 | |
PCT/JP2009/000907 WO2009107399A1 (ja) | 2008-02-28 | 2009-02-27 | 信号評価方法および信号評価装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0902903A2 true BRPI0902903A2 (pt) | 2015-09-22 |
Family
ID=41015806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0902903A BRPI0902903A2 (pt) | 2008-02-28 | 2009-02-27 | método de avaliação de sinal e aparelho de avaliação de sinal |
Country Status (11)
Country | Link |
---|---|
US (2) | US8068399B2 (pt) |
EP (1) | EP2246855A4 (pt) |
JP (1) | JP5450376B2 (pt) |
KR (1) | KR20100115699A (pt) |
CN (1) | CN101681658A (pt) |
AU (1) | AU2009219544A1 (pt) |
BR (1) | BRPI0902903A2 (pt) |
CA (1) | CA2684790A1 (pt) |
MX (1) | MX2009011558A (pt) |
RU (1) | RU2009139747A (pt) |
WO (1) | WO2009107399A1 (pt) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5238436B2 (ja) * | 2008-09-30 | 2013-07-17 | 株式会社日立製作所 | 光ディスク記録装置、光ディスク再生装置、情報記録方法および情報再生方法 |
CA2707185A1 (en) * | 2008-10-02 | 2010-04-08 | Panasonic Corporation | Reproduced signal evaluating method, information recording medium, reproducing device, and recording device |
US8179760B2 (en) * | 2008-10-02 | 2012-05-15 | Panasonic Corporation | Reproduction signal evaluation method, information recording medium, reproduction apparatus and recording apparatus |
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 |
JP5372864B2 (ja) * | 2009-08-18 | 2013-12-18 | パナソニック株式会社 | 多層光ディスクおよび光ディスク装置 |
WO2012008094A1 (ja) * | 2010-07-12 | 2012-01-19 | パナソニック株式会社 | 信号評価指標演算回路および光ディスク装置 |
KR20130037547A (ko) * | 2011-10-06 | 2013-04-16 | 삼성전자주식회사 | 기록 매체 재생 방법 및 이를 적용한 기록 매체 재생 장치 |
US9053217B2 (en) * | 2013-02-17 | 2015-06-09 | Lsi Corporation | Ratio-adjustable sync mark detection system |
EP3486907B1 (en) * | 2016-08-30 | 2022-05-11 | Sony Semiconductor Solutions Corporation | Signal quality assessment device, method for generating signal quality assessment value, and reproduction device |
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 |
CN113614830B (zh) * | 2019-03-29 | 2023-08-11 | 松下知识产权经营株式会社 | 记录状态评估方法、记录补偿方法和信息记录/回放设备 |
CN113760682B (zh) * | 2021-08-20 | 2024-02-23 | 浪潮电子信息产业股份有限公司 | 一种内存信号质量评估方法、系统及装置 |
KR20230075270A (ko) * | 2021-11-22 | 2023-05-31 | 현대모비스 주식회사 | 빔 패턴 제어 장치 및 방법 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003051163A (ja) | 2001-05-28 | 2003-02-21 | Sharp Corp | 信号品質評価方法及び再生装置 |
DE60233092D1 (de) | 2001-05-28 | 2009-09-10 | Sharp Kk | Schätzung der BER in einem optischen Plattendecoder aufgrund der Anzahl von Signalen, die nach PRML Detektion eine Wahrscheinlichkeit unter einer Schwelle haben. |
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 |
JP3668178B2 (ja) * | 2001-11-09 | 2005-07-06 | 株式会社東芝 | 情報記録再生装置とその信号評価方法及び情報記録再生媒体 |
JP3817470B2 (ja) | 2001-12-04 | 2006-09-06 | シャープ株式会社 | 信号評価装置および信号評価方法 |
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 |
JP4102738B2 (ja) * | 2002-12-17 | 2008-06-18 | 日本電気株式会社 | 光ディスクの信号品質評価方法、品質評価装置、および、光ディスク装置 |
EP1443509A3 (en) * | 2003-01-28 | 2006-01-11 | Kabushiki Kaisha Toshiba | Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium |
JP2004335079A (ja) * | 2003-04-14 | 2004-11-25 | Matsushita Electric Ind Co Ltd | 記録制御装置、記録再生装置および記録制御方法 |
US7038869B2 (en) | 2003-04-14 | 2006-05-02 | Matsushita Electric Industrial Co., Ltd. | Recording control apparatus, recording and reproduction apparatus, and recording control method |
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 |
JP2006164318A (ja) | 2004-12-02 | 2006-06-22 | Sony Corp | 最尤復号装置、信号評価方法 |
JP4622632B2 (ja) * | 2005-03-31 | 2011-02-02 | ソニー株式会社 | 最尤復号装置、信号評価方法、再生装置 |
JP4750488B2 (ja) * | 2005-07-08 | 2011-08-17 | ソニー株式会社 | 評価装置、再生装置、評価方法 |
KR100658783B1 (ko) * | 2006-02-21 | 2006-12-19 | 삼성전자주식회사 | 광 디스크 재생 장치 |
CN101501774A (zh) * | 2006-12-28 | 2009-08-05 | 松下电器产业株式会社 | 信息记录介质评价方法、信息记录介质、信息记录介质的制造方法、信号处理方法、访问控制装置 |
-
2009
- 2009-02-27 RU RU2009139747/28A patent/RU2009139747A/ru not_active Application Discontinuation
- 2009-02-27 US US12/394,281 patent/US8068399B2/en active Active
- 2009-02-27 AU AU2009219544A patent/AU2009219544A1/en not_active Abandoned
- 2009-02-27 KR KR1020097022069A patent/KR20100115699A/ko not_active Application Discontinuation
- 2009-02-27 BR BRPI0902903A patent/BRPI0902903A2/pt not_active Application Discontinuation
- 2009-02-27 EP EP09714009A patent/EP2246855A4/en not_active Withdrawn
- 2009-02-27 CA CA002684790A patent/CA2684790A1/en not_active Abandoned
- 2009-02-27 MX MX2009011558A patent/MX2009011558A/es active IP Right Grant
- 2009-02-27 CN CN200980000286A patent/CN101681658A/zh active Pending
- 2009-02-27 WO PCT/JP2009/000907 patent/WO2009107399A1/ja active Application Filing
- 2009-02-27 JP JP2010500578A patent/JP5450376B2/ja active Active
-
2011
- 2011-02-25 US US13/034,762 patent/US8098557B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20110149704A1 (en) | 2011-06-23 |
US20090225639A1 (en) | 2009-09-10 |
WO2009107399A1 (ja) | 2009-09-03 |
AU2009219544A1 (en) | 2009-09-03 |
KR20100115699A (ko) | 2010-10-28 |
JP5450376B2 (ja) | 2014-03-26 |
EP2246855A1 (en) | 2010-11-03 |
CN101681658A (zh) | 2010-03-24 |
EP2246855A4 (en) | 2011-07-27 |
US8098557B2 (en) | 2012-01-17 |
JPWO2009107399A1 (ja) | 2011-06-30 |
RU2009139747A (ru) | 2011-05-10 |
US8068399B2 (en) | 2011-11-29 |
MX2009011558A (es) | 2009-11-27 |
CA2684790A1 (en) | 2009-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25A | Requested transfer of rights approved |
Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (JP) Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT |
|
B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B06T | Formal requirements before examination [chapter 6.20 patent gazette] | ||
B11E | Dismissal acc. art. 34 of ipl - requirements for examination incomplete | ||
B11T | Dismissal: dismissal of application maintained |