JP2003178537A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2003178537A5 JP2003178537A5 JP2001378485A JP2001378485A JP2003178537A5 JP 2003178537 A5 JP2003178537 A5 JP 2003178537A5 JP 2001378485 A JP2001378485 A JP 2001378485A JP 2001378485 A JP2001378485 A JP 2001378485A JP 2003178537 A5 JP2003178537 A5 JP 2003178537A5
- Authority
- JP
- Japan
- Prior art keywords
- relative frequency
- path metric
- detection means
- metric difference
- frequency
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000013441 quality evaluation Methods 0.000 description 1
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001378485A JP3820144B2 (ja) | 2001-12-12 | 2001-12-12 | 信号評価装置および信号評価方法 |
| DE60233092T DE60233092D1 (de) | 2001-05-28 | 2002-05-24 | Schätzung der BER in einem optischen Plattendecoder aufgrund der Anzahl von Signalen, die nach PRML Detektion eine Wahrscheinlichkeit unter einer Schwelle haben. |
| US10/154,898 US7206351B2 (en) | 2001-05-28 | 2002-05-24 | Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices |
| EP02011480A EP1262971B1 (en) | 2001-05-28 | 2002-05-24 | BER evaluation in an optical disk decoder by counting a number of signals after PRML having a likelihood below a threshold. |
| KR10-2002-0029686A KR100527153B1 (ko) | 2001-05-28 | 2002-05-28 | 신호평가장치, 신호평가방법, 신호품질평가방법 및재생장치, 기록장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001378485A JP3820144B2 (ja) | 2001-12-12 | 2001-12-12 | 信号評価装置および信号評価方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003178537A JP2003178537A (ja) | 2003-06-27 |
| JP2003178537A5 true JP2003178537A5 (enExample) | 2005-04-28 |
| JP3820144B2 JP3820144B2 (ja) | 2006-09-13 |
Family
ID=19186197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001378485A Expired - Fee Related JP3820144B2 (ja) | 2001-05-28 | 2001-12-12 | 信号評価装置および信号評価方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3820144B2 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP5003284B2 (ja) * | 2007-05-24 | 2012-08-15 | 日本電気株式会社 | 信号品質測定装置及び情報再生装置 |
| JP6995629B2 (ja) * | 2018-01-05 | 2022-01-14 | 日本電信電話株式会社 | 演算回路 |
-
2001
- 2001-12-12 JP JP2001378485A patent/JP3820144B2/ja not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100397523C (zh) | 光盘装置 | |
| RU2010107159A (ru) | Способ оценки сигнала воспроизведения, устройство оценки сигнала воспроизведения и устройство на оптическом диске, оснащенное таким устройством оценки сигнала воспроизведения | |
| US6046873A (en) | Magnetic recording and reproducing apparatus including a viterbi detector having a variable reference amplitude value | |
| KR100658783B1 (ko) | 광 디스크 재생 장치 | |
| JP2003178537A5 (enExample) | ||
| JP3865634B2 (ja) | データ再生装置、プログラム及び記録媒体 | |
| US7668053B2 (en) | Processing an information carrying signal | |
| RU2004137479A (ru) | Носитель записи высокой плотности и способ и устройство управления воспроизведением/записью данных с него | |
| JP4451004B2 (ja) | 光再生装置 | |
| US7460451B2 (en) | Information-reproducing apparatus equipped with PLL circuit | |
| US7738332B2 (en) | Reproduction method, optical disk drive, and IC circuit | |
| JP2006352867A (ja) | 位相同期ループ回路での周波数検出器及び周波数エラーの検出方法 | |
| US20070291616A1 (en) | Optical disk reproducing apparatus and optical disk reproducing method | |
| JP3820144B2 (ja) | 信号評価装置および信号評価方法 | |
| JPWO2009122565A1 (ja) | 記録装置及び方法、並びにコンピュータプログラム | |
| JP5612657B2 (ja) | 信号品質測定装置及び該方法 | |
| CN101911196B (zh) | 用于光盘记录的时序校准的电路、架构、装置、系统、算法及方法与软件 | |
| JPH087495A (ja) | データ記録再生装置および媒体 | |
| JP3819287B2 (ja) | 記録媒体の評価方法、評価装置および再生装置 | |
| JP2002150564A (ja) | 円盤状記録媒体の復号装置 | |
| US20070115785A1 (en) | Information reproducing apparatus | |
| US8059511B2 (en) | Device and method for reproducing information, and computer program | |
| JPH0745009A (ja) | データ伝送装置 | |
| JP2008198300A (ja) | 雑音予測復号器及び雑音予測復号化方法 | |
| JP2001319427A (ja) | 情報再生装置 |