JP2004335079A5 - - Google Patents
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- JP2004335079A5 JP2004335079A5 JP2004117386A JP2004117386A JP2004335079A5 JP 2004335079 A5 JP2004335079 A5 JP 2004335079A5 JP 2004117386 A JP2004117386 A JP 2004117386A JP 2004117386 A JP2004117386 A JP 2004117386A JP 2004335079 A5 JP2004335079 A5 JP 2004335079A5
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- 238000001514 detection method Methods 0.000 claims 11
- 238000000034 method Methods 0.000 claims 11
- 238000007476 Maximum Likelihood Methods 0.000 claims 2
- 238000003672 processing method Methods 0.000 claims 2
- 230000007704 transition Effects 0.000 claims 2
Claims (13)
前記情報記録媒体から再生した再生信号からPRML信号処理方式を用いて2値化信号を生成する再生手段と、
前記2値化信号から前記PRML方式における、同じ状態に合流するパスのパターンを検出する検出手段と、
前記2値化信号を正パターンとし、その正パターンから得られる理想信号と、この正パターンに対応する誤パターンと、その誤パターンから得られる理想信号と、を生成する生成手段と、
前記検出手段にて、前記2値化信号が所定のパターンと検出された場合に、前記正パターンの理想信号と前記再生信号の距離と、前記誤パターンの理想信号と再生信号の距離と、の差分を算出する差分算出手段と、
前記算出された差分から記録補償パラメータを求め、前記記録補償パラメータに基づいて、前記情報記録媒体に対する信号記録波形を補償する補償手段と、
を具備する、情報記録装置。 An information recording apparatus for recording on an information recording medium,
Reproduction means for generating a binarized signal from a reproduction signal reproduced from the information recording medium using a PRML signal processing method;
Detecting means for detecting a pattern of paths joining the same state in the PRML system from the binarized signal;
A generating means for generating a binarized signal as a positive pattern and generating an ideal signal obtained from the positive pattern, an erroneous pattern corresponding to the positive pattern, and an ideal signal obtained from the erroneous pattern;
When the detection unit detects the binarized signal as a predetermined pattern, a distance between the ideal signal of the positive pattern and the reproduction signal, and a distance between the ideal signal of the erroneous pattern and the reproduction signal, A difference calculating means for calculating a difference;
A compensation means for obtaining a recording compensation parameter from the calculated difference, and compensating a signal recording waveform for the information recording medium based on the recording compensation parameter;
An information recording apparatus comprising:
前記情報記録媒体から再生した再生信号からPRML信号処理方式を用いて2値化信号を生成する再生ステップと、
前記2値化信号から前記PRML方式における、同じ状態に合流するパスのパターンを検出する検出ステップと、
前記2値化信号を正パターンとし、その正パターンから得られる理想信号と、この正パターンに対応する誤パターンと、その誤パターンから得られる理想信号と、を生成する生成ステップと、
前記検出ステップにて、前記2値化信号が所定のパターンと検出された場合に、前記正パターンの理想信号と前記再生信号の距離と、前記誤パターンの理想信号と再生信号の距離と、の差分を算出する差分算出ステップと、
前記算出された差分から記録補償パラメータを求め、前記記録補償パラメータに基づいて、前記情報記録媒体に対する信号記録波形を補償する補償ステップと、
を含む、情報記録方法。 An information recording method for recording on an information recording medium,
A reproduction step of generating a binarized signal from a reproduction signal reproduced from the information recording medium using a PRML signal processing method;
A detection step of detecting a pattern of paths joining the same state in the PRML method from the binarized signal;
The binarized signal is a positive pattern, and a generation step for generating an ideal signal obtained from the positive pattern, an erroneous pattern corresponding to the positive pattern, and an ideal signal obtained from the erroneous pattern;
In the detection step, when the binarized signal is detected as a predetermined pattern, a distance between the ideal signal of the positive pattern and the reproduction signal, and a distance between the ideal signal of the erroneous pattern and the reproduction signal, A difference calculating step for calculating a difference;
A compensation step for obtaining a recording compensation parameter from the calculated difference, and compensating a signal recording waveform for the information recording medium based on the recording compensation parameter;
An information recording method.
前記情報記録媒体から再生された再生信号から、PRML信号処理方式を用いて生成された2値化信号から前記PRML方式における、同じ状態に合流するパスのパターンを検出する検出手段と、
前記2値化信号を正パターンとし、その正パターンから得られる理想信号と、この正パターンに対応する誤パターンと、その誤パターンから得られる理想信号と、を生成する生成手段と、
前記検出手段にて、前記2値化信号が所定のパターンと検出された場合に、前記正パターンの理想信号と前記再生信号の距離と、前記誤パターンの理想信号と再生信号の距離と、の差分を算出する差分算出手段と、
前記算出された差分から記録補償パラメータを求め、前記記録補償パラメータに基づいて、前記情報記録媒体に対する信号記録波形を補償する補償手段と、
を具備する、記録制御装置。 A recording control device for controlling recording on an information recording medium,
Detecting means for detecting a pattern of paths joining in the same state in the PRML system from a binary signal generated using the PRML signal processing system from a playback signal reproduced from the information recording medium;
A generating means for generating a binarized signal as a positive pattern and generating an ideal signal obtained from the positive pattern, an erroneous pattern corresponding to the positive pattern, and an ideal signal obtained from the erroneous pattern;
When the detection unit detects the binarized signal as a predetermined pattern, a distance between the ideal signal of the positive pattern and the reproduction signal, and a distance between the ideal signal of the erroneous pattern and the reproduction signal, A difference calculating means for calculating a difference;
A compensation means for obtaining a recording compensation parameter from the calculated difference, and compensating a signal recording waveform for the information recording medium based on the recording compensation parameter;
A recording control apparatus comprising:
前記情報記録媒体から再生された再生信号から、PRML信号処理方式を用いて生成された2値化信号から前記PRML方式における、同じ状態に合流するパスのパターンを検出する検出ステップと、
前記2値化信号を正パターンとし、その正パターンから得られる理想信号と、この正パターンに対応する誤パターンと、その誤パターンから得られる理想信号と、を生成する生成ステップと、
前記検出ステップにて、前記2値化信号が所定のパターンと検出された場合に、前記正パターンの理想信号と前記再生信号の距離と、前記誤パターンの理想信号と再生信号の距離と、の差分を算出する差分算出ステップと、
前記算出された差分から記録補償パラメータを求め、前記記録補償パラメータに基づいて、前記情報記録媒体に対する信号記録波形を補償する補償ステップと、
を含む、記録制御方法。 A recording control method for controlling recording on an information recording medium,
A detection step of detecting a pattern of paths joining in the same state in the PRML system from a binary signal generated using the PRML signal processing system from a playback signal reproduced from the information recording medium;
The binarized signal is a positive pattern, and a generation step for generating an ideal signal obtained from the positive pattern, an erroneous pattern corresponding to the positive pattern, and an ideal signal obtained from the erroneous pattern;
In the detection step, when the binarized signal is detected as a predetermined pattern, a distance between the ideal signal of the positive pattern and the reproduction signal, and a distance between the ideal signal of the erroneous pattern and the reproduction signal, A difference calculating step for calculating a difference;
A compensation step for obtaining a recording compensation parameter from the calculated difference, and compensating a signal recording waveform for the information recording medium based on the recording compensation parameter;
Including a recording control method.
前記情報記録媒体から再生された再生信号から、PRML信号処理方式を用いて生成された2値化信号から前記PRML方式における、同じ状態に合流するパスのパターンを検出する検出ステップと、
前記2値化信号を正パターンとし、その正パターンから得られる理想信号と、この正パターンに対応する誤パターンと、その誤パターンから得られる理想信号と、を生成する生成ステップと、
前記検出ステップにて、前記2値化信号が所定のパターンと検出された場合に、前記正パターンの理想信号と前記再生信号の距離と、前記誤パターンの理想信号と再生信号の距離と、の差分を算出する差分算出ステップと、
前記算出された差分から記録補償パラメータを求め、前記記録補償パラメータに基づいて、前記情報記録媒体に対する信号記録波形を補償する補償ステップと、
を含む、記録制御プログラム。 A recording control program for controlling recording on an information recording medium,
A detection step of detecting a pattern of paths joining in the same state in the PRML system from a binary signal generated using the PRML signal processing system from a playback signal reproduced from the information recording medium;
The binarized signal is a positive pattern, and a generation step for generating an ideal signal obtained from the positive pattern, an erroneous pattern corresponding to the positive pattern, and an ideal signal obtained from the erroneous pattern;
In the detection step, when the binarized signal is detected as a predetermined pattern, a distance between the ideal signal of the positive pattern and the reproduction signal, and a distance between the ideal signal of the erroneous pattern and the reproduction signal, A difference calculating step for calculating a difference;
A compensation step for obtaining a recording compensation parameter from the calculated difference, and compensating a signal recording waveform for the information recording medium based on the recording compensation parameter;
Including a recording control program.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004117386A JP2004335079A (en) | 2003-04-14 | 2004-04-12 | Recording control unit, recording and reproducing device, and recording control method |
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JP2003108821 | 2003-04-14 | ||
JP2004117386A JP2004335079A (en) | 2003-04-14 | 2004-04-12 | Recording control unit, recording and reproducing device, and recording control method |
Related Child Applications (1)
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JP2008204692A Division JP4633831B2 (en) | 2003-04-14 | 2008-08-07 | Recording control method |
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JP2004335079A JP2004335079A (en) | 2004-11-25 |
JP2004335079A5 true JP2004335079A5 (en) | 2008-05-15 |
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JP2004117386A Withdrawn JP2004335079A (en) | 2003-04-14 | 2004-04-12 | Recording control unit, recording and reproducing device, and recording control method |
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Families Citing this family (29)
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JP4395455B2 (en) | 2005-02-24 | 2010-01-06 | 太陽誘電株式会社 | Optical information recording apparatus and method, and signal processing circuit |
WO2006112277A1 (en) | 2005-04-14 | 2006-10-26 | Matsushita Electric Industrial Co., Ltd. | Method for optimizing recording pulse condition in data recording to optical information recording medium |
JP2006344339A (en) * | 2005-06-10 | 2006-12-21 | Matsushita Electric Ind Co Ltd | Optical recording medium recording/reproducing device and its recording parametric correction method |
JP4655892B2 (en) * | 2005-11-07 | 2011-03-23 | ソニー株式会社 | Recording / reproducing apparatus and recording method |
JP4375345B2 (en) | 2006-02-24 | 2009-12-02 | ソニー株式会社 | Optical recording / reproducing apparatus and optical recording / reproducing method |
JP4556912B2 (en) * | 2006-05-29 | 2010-10-06 | Tdk株式会社 | Recording condition setting method for optical recording medium |
JP4597911B2 (en) * | 2006-06-02 | 2010-12-15 | 太陽誘電株式会社 | Optical recording / reproducing method and apparatus, signal processing circuit, optical recording / reproducing program, and information recording medium |
JP5089939B2 (en) | 2006-08-11 | 2012-12-05 | ソニーオプティアーク株式会社 | Recording / reproducing apparatus, evaluation value calculation method |
JP4523583B2 (en) * | 2006-12-27 | 2010-08-11 | 太陽誘電株式会社 | Data recording evaluation method and optical disk recording / reproducing apparatus |
RU2009103766A (en) | 2006-12-28 | 2010-08-10 | Панасоник Корпорэйшн (Jp) | METHOD FOR EVALUATING INFORMATION RECORDING MEDIA, INFORMATION RECORDING MEDIA, METHOD FOR PRODUCING INFORMATION RECORDING MEDIA, METHOD FOR SIGNAL PROCESSING AND ACCESS CONTROL DEVICE |
US20080212427A1 (en) * | 2007-02-05 | 2008-09-04 | Taiyo Yuden Co., Ltd. | Recording condition adjusting method of optical disc recording/playing system, optical recording playing device and optical disc |
JP5050805B2 (en) * | 2007-11-22 | 2012-10-17 | 日本電気株式会社 | Signal quality measuring apparatus, method, and information recording / reproducing apparatus |
JP4987843B2 (en) * | 2007-12-28 | 2012-07-25 | パナソニック株式会社 | Phase error detection device, waveform shaping device, and optical disk device |
EP2246855A4 (en) | 2008-02-28 | 2011-07-27 | Panasonic Corp | Signal evaluation method and signal evaluation device |
WO2009122642A1 (en) * | 2008-03-31 | 2009-10-08 | パナソニック株式会社 | Reproduction signal quality evaluation device and method |
EP2309510A4 (en) | 2008-07-01 | 2011-08-03 | Panasonic Corp | Method for evaluating reproduced signal, reproduced signal evaluation device and optical disc device equipped with the same |
US8289829B2 (en) | 2008-10-01 | 2012-10-16 | Panasonic Corporation | Information recording medium and recording/reproduction apparatus |
US20100080095A1 (en) * | 2008-10-01 | 2010-04-01 | Panasonic Corporation | Recording control method, recording/reproduction method, recording control apparatus and recording/reproduction apparatus |
US8446810B2 (en) | 2008-10-01 | 2013-05-21 | Panasonic Corporation | Information recording medium having recording condition for adjusting the position of cooling pulse |
US20100085851A1 (en) * | 2008-10-02 | 2010-04-08 | Panasonic Corporation | Method and apparatus for evaluating information recording medium |
US8179760B2 (en) | 2008-10-02 | 2012-05-15 | Panasonic Corporation | Reproduction signal evaluation method, information recording medium, reproduction apparatus and recording apparatus |
US8243571B2 (en) | 2008-10-02 | 2012-08-14 | Panasonic Corporation | Reproduced signal evaluating method, information recording medium, reproducing device, and recording device |
JP4733234B2 (en) | 2008-10-09 | 2011-07-27 | パナソニック株式会社 | Optical recording method, optical recording apparatus, master exposure apparatus, optical information recording medium, and reproducing method |
WO2010067496A1 (en) | 2008-12-09 | 2010-06-17 | パナソニック株式会社 | Optical recording method, optical recording device, master medium exposure device, optical information recording medium, and reproducing method |
JP4764932B2 (en) * | 2009-02-03 | 2011-09-07 | 株式会社日立製作所 | Reproduction signal evaluation method and optical disc apparatus |
AU2010202774A1 (en) | 2009-02-03 | 2010-08-19 | Panasonic Corporation | Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same |
WO2011132381A1 (en) | 2010-04-20 | 2011-10-27 | パナソニック株式会社 | Information reproduction method, information recording method, and information recording medium |
JP4877406B2 (en) * | 2010-06-03 | 2012-02-15 | 株式会社日立製作所 | Reproduction signal evaluation method and optical disc apparatus |
JP2019160370A (en) * | 2018-03-14 | 2019-09-19 | パナソニックIpマネジメント株式会社 | Information recording/reproducing device and information recording/reproducing method |
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2004
- 2004-04-12 JP JP2004117386A patent/JP2004335079A/en not_active Withdrawn
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