BRPI1004564A2 - métodos de avaliação de sinal reproduzido, e, unidade de disco óptico - Google Patents
métodos de avaliação de sinal reproduzido, e, unidade de disco ópticoInfo
- Publication number
- BRPI1004564A2 BRPI1004564A2 BRPI1004564A BRPI1004564A BRPI1004564A2 BR PI1004564 A2 BRPI1004564 A2 BR PI1004564A2 BR PI1004564 A BRPI1004564 A BR PI1004564A BR PI1004564 A BRPI1004564 A BR PI1004564A BR PI1004564 A2 BRPI1004564 A2 BR PI1004564A2
- Authority
- BR
- Brazil
- Prior art keywords
- optical disc
- disc drive
- reproduced signal
- evaluation methods
- signal evaluation
- Prior art date
Links
- 238000011156 evaluation Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B20/10009—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
- G11B20/1012—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
- G11B20/10268—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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/6343—Error control coding in combination with techniques for partial response channels, e.g. recording
-
- 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
- G11B20/18—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
- 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)
- Theoretical Computer Science (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009022112A JP4764932B2 (ja) | 2009-02-03 | 2009-02-03 | 再生信号の評価方法および光ディスク装置 |
| PCT/JP2010/051229 WO2010090136A1 (ja) | 2009-02-03 | 2010-01-29 | 再生信号の評価方法および光ディスク装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI1004564A2 true BRPI1004564A2 (pt) | 2016-04-05 |
Family
ID=41804041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI1004564A BRPI1004564A2 (pt) | 2009-02-03 | 2010-01-29 | métodos de avaliação de sinal reproduzido, e, unidade de disco óptico |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US8107339B2 (pt) |
| EP (2) | EP2214173B1 (pt) |
| JP (1) | JP4764932B2 (pt) |
| CN (1) | CN101794585B (pt) |
| BR (1) | BRPI1004564A2 (pt) |
| MX (1) | MX2011002386A (pt) |
| MY (1) | MY151117A (pt) |
| WO (1) | WO2010090136A1 (pt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI530942B (zh) * | 2012-06-04 | 2016-04-21 | Sony Corp | A signal quality evaluation apparatus, a signal quality evaluation method, and a reproduction apparatus |
| IT201700039288A1 (it) | 2017-04-10 | 2018-10-10 | Nexion Spa | Metodo e apparato di controllo di pneumatici delle ruote di un veicolo |
| US10802911B2 (en) * | 2017-08-16 | 2020-10-13 | Western Digital Technologies, Inc. | Non-volatile storage with wear-adjusted failure prediction |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| DE60301750T2 (de) | 2002-04-03 | 2006-07-06 | Matsushita Electric Industrial Co., Ltd., Kadoma | Vorrichtung zur Erzeugung eines erweiterten Schlüssels, Verschlüsselungsvorrichtung und Verschlüsselungssystem |
| 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 (en) | 2003-01-28 | 2006-01-11 | Kabushiki Kaisha Toshiba | Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium |
| JP3813931B2 (ja) * | 2003-01-31 | 2006-08-23 | 株式会社東芝 | 情報再生装置及び情報再生方法 |
| JP2004253099A (ja) * | 2003-02-21 | 2004-09-09 | Toshiba Corp | シンクフレーム構造、情報記憶媒体、情報記録方法、情報再生方法、および情報再生装置 |
| 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 |
| 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 |
| JP4407461B2 (ja) | 2004-10-21 | 2010-02-03 | 株式会社日立製作所 | 光ディスク装置 |
| 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 |
| 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 |
| JP4577084B2 (ja) * | 2005-05-11 | 2010-11-10 | ソニー株式会社 | Ｐｒｍｌ復号装置、ｐｒｍｌ復号方法 |
| JP2007115318A (ja) | 2005-10-19 | 2007-05-10 | Toshiba Corp | ディスク評価装置及びディスク評価方法 |
| JP4303267B2 (ja) * | 2006-07-26 | 2009-07-29 | Ｔｄｋ株式会社 | 光記録媒体の情報記録方法、光記録装置 |
| 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 |
| JPWO2009122642A1 (ja) | 2008-03-31 | 2011-07-28 | パナソニック株式会社 | 再生信号品質評価装置及び方法 |
-
2009
- 2009-02-03 JP JP2009022112A patent/JP4764932B2/ja not_active Expired - Fee Related
- 2009-09-07 CN CN2009101728782A patent/CN101794585B/zh not_active Expired - Fee Related
- 2009-09-29 US US12/568,977 patent/US8107339B2/en not_active Expired - Fee Related
- 2009-09-30 EP EP09012417.3A patent/EP2214173B1/en not_active Not-in-force
- 2009-09-30 EP EP10008686.7A patent/EP2254122B1/en not_active Not-in-force
-
2010
- 2010-01-29 MY MYPI2011001009 patent/MY151117A/en unknown
- 2010-01-29 MX MX2011002386A patent/MX2011002386A/es active IP Right Grant
- 2010-01-29 BR BRPI1004564A patent/BRPI1004564A2/pt not_active IP Right Cessation
- 2010-01-29 WO PCT/JP2010/051229 patent/WO2010090136A1/ja not_active Ceased
-
2011
- 2011-08-16 US US13/210,429 patent/US8154973B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101794585B (zh) | 2012-11-28 |
| MY151117A (en) | 2014-04-15 |
| EP2254122B1 (en) | 2015-11-11 |
| US20100195462A1 (en) | 2010-08-05 |
| EP2214173A1 (en) | 2010-08-04 |
| JP4764932B2 (ja) | 2011-09-07 |
| MX2011002386A (es) | 2011-07-04 |
| US8107339B2 (en) | 2012-01-31 |
| CN101794585A (zh) | 2010-08-04 |
| WO2010090136A1 (ja) | 2010-08-12 |
| US20120002526A1 (en) | 2012-01-05 |
| JP2010182342A (ja) | 2010-08-19 |
| US8154973B2 (en) | 2012-04-10 |
| EP2214173B1 (en) | 2015-11-11 |
| EP2254122A1 (en) | 2010-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] | ||
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2447 DE 28-11-2017 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |