CN1316729A - 摆动信号重放电路 - Google Patents
摆动信号重放电路 Download PDFInfo
- Publication number
- CN1316729A CN1316729A CN01111729A CN01111729A CN1316729A CN 1316729 A CN1316729 A CN 1316729A CN 01111729 A CN01111729 A CN 01111729A CN 01111729 A CN01111729 A CN 01111729A CN 1316729 A CN1316729 A CN 1316729A
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- groove
- agc
- gain control
- 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
Images
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
-
- 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
- G11B7/005—Reproducing
-
- 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
- G11B7/005—Reproducing
- G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0948—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
Landscapes
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP79288/2000 | 2000-03-16 | ||
JP2000079288A JP4422855B2 (ja) | 2000-03-16 | 2000-03-16 | ウォブル信号再生回路 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100040912A Division CN1299265C (zh) | 2000-03-16 | 2001-03-16 | 摆动信号重放电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1316729A true CN1316729A (zh) | 2001-10-10 |
CN1193352C CN1193352C (zh) | 2005-03-16 |
Family
ID=18596557
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB01111729XA Expired - Fee Related CN1193352C (zh) | 2000-03-16 | 2001-03-16 | 摆动信号重放电路 |
CNB2004100040912A Expired - Fee Related CN1299265C (zh) | 2000-03-16 | 2001-03-16 | 摆动信号重放电路 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100040912A Expired - Fee Related CN1299265C (zh) | 2000-03-16 | 2001-03-16 | 摆动信号重放电路 |
Country Status (5)
Country | Link |
---|---|
US (3) | US6785207B2 (zh) |
JP (1) | JP4422855B2 (zh) |
KR (1) | KR100424232B1 (zh) |
CN (2) | CN1193352C (zh) |
TW (1) | TW509927B (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100345191C (zh) * | 2004-01-06 | 2007-10-24 | 松下电器产业株式会社 | 摆频信号提取电路和光盘驱动器 |
CN100353427C (zh) * | 2004-06-24 | 2007-12-05 | 夏普株式会社 | 光盘装置 |
CN100373464C (zh) * | 2004-10-25 | 2008-03-05 | 索尼株式会社 | 增益调节方法、电路和具有相同增益调节电路的光盘设备 |
CN100394480C (zh) * | 2003-08-20 | 2008-06-11 | 三星电子株式会社 | 平台预凹坑数据检测装置及其方法 |
CN101807410A (zh) * | 2009-02-17 | 2010-08-18 | 索尼公司 | 光盘重放设备和光盘记录/重放设备 |
CN101458937B (zh) * | 2007-12-13 | 2011-07-06 | 索尼株式会社 | 摆动信号提取电路和光盘装置 |
CN110962046A (zh) * | 2019-11-25 | 2020-04-07 | 佛山缔乐视觉科技有限公司 | 五金件的缺陷识别方法、系统及存储介质 |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4561022B2 (ja) * | 2000-10-05 | 2010-10-13 | 日本ビクター株式会社 | 記録及び/又は再生装置並びに方法 |
KR100382733B1 (ko) * | 2001-02-08 | 2003-05-09 | 삼성전자주식회사 | 광디스크 재생 시스템에 이용되는 피킹 방지 자동 이득조절기 및 피킹 방지방법 |
JP3690289B2 (ja) * | 2001-02-19 | 2005-08-31 | ティアック株式会社 | 光ディスク装置 |
JP2002279640A (ja) | 2001-03-21 | 2002-09-27 | Ricoh Co Ltd | ウォブル検出回路とその装置 |
DE10140326A1 (de) * | 2001-08-16 | 2003-02-27 | Thomson Brandt Gmbh | Verfahren zur Verminderung des Rauschens in einem Wobbelsignal |
JP3566690B2 (ja) | 2001-12-07 | 2004-09-15 | 株式会社リコー | ウォブル信号検出回路及び光ディスク装置 |
JP2003217127A (ja) * | 2002-01-16 | 2003-07-31 | Sony Corp | 光ピックアップ装置及び光ディスク装置 |
JP4079658B2 (ja) * | 2002-03-05 | 2008-04-23 | 株式会社リコー | 2値化ウォブル信号を生成する回路、ライトクロック生成回路、2値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置 |
US7474603B2 (en) * | 2002-09-04 | 2009-01-06 | Ricoh Company, Ltd. | Optical information recording method, apparatus, and medium, laser control circuit, wobble signal detection method, and servo signal detection method |
JP2004134002A (ja) * | 2002-10-10 | 2004-04-30 | Sony Corp | ディスクドライブ装置、プリピット検出方法 |
US7729222B2 (en) * | 2003-01-28 | 2010-06-01 | Ting-Wen Su | Method and apparatus for generating wobble signal |
JP2004246948A (ja) * | 2003-02-12 | 2004-09-02 | Sanyo Electric Co Ltd | データ記録制御装置 |
TWI261225B (en) * | 2003-04-10 | 2006-09-01 | Via Optical Solution Inc | Method and related apparatus for evaluating beta-parameter according to results of read data sliced with different slicing levels while performing optimal power control of optical disk drive |
WO2005024800A1 (ja) | 2003-09-02 | 2005-03-17 | Ricoh Company Ltd. | プッシュプル信号生成装置及び光ディスク装置 |
US20050201230A1 (en) * | 2003-09-19 | 2005-09-15 | Shinichi Kurobe | Wobble signal demodulating method, wobble signal demodulating circuit and optical disk apparatus |
KR20060113355A (ko) * | 2003-10-31 | 2006-11-02 | 마츠시타 덴끼 산교 가부시키가이샤 | 워블신호 추출회로 및 광디스크장치 |
JP2005166151A (ja) * | 2003-12-01 | 2005-06-23 | Sanyo Electric Co Ltd | コンパクトディスク再生装置用rf回路 |
KR100530237B1 (ko) * | 2004-01-19 | 2005-11-22 | 삼성전자주식회사 | 워블 신호 재생 장치 |
JP4237111B2 (ja) * | 2004-07-07 | 2009-03-11 | 株式会社リコー | クロック信号生成回路、及びそれを用いた光ディスク装置 |
JP2006228286A (ja) * | 2005-02-15 | 2006-08-31 | Toshiba Corp | 光ディスク記録再生装置 |
US7525604B2 (en) * | 2005-03-15 | 2009-04-28 | Naxellent, Llc | Windows with electrically controllable transmission and reflection |
CN100389460C (zh) * | 2005-06-01 | 2008-05-21 | 上海乐金广电电子有限公司 | 光记录媒介的抖动地址纠错装置 |
US7729214B1 (en) | 2005-08-09 | 2010-06-01 | Mediatek Inc. | Method and apparatus applied in optical disc drive for obtaining push-pull signal via adjusting amplifying gain according to fluctuating signals generated from photo detector of pick-up head |
US20070064566A1 (en) * | 2005-09-21 | 2007-03-22 | Wei-Hsin Hsu | Signal process device and method for obtaining wobble signal |
US7596193B2 (en) | 2005-11-09 | 2009-09-29 | Via Telecom, Inc. | Variable bandwidth automatic gain control |
JP2007328831A (ja) | 2006-06-06 | 2007-12-20 | Hitachi-Lg Data Storage Inc | 情報再生装置及び情報再生方法 |
WO2008007646A1 (fr) * | 2006-07-10 | 2008-01-17 | Panasonic Corporation | Dispositif de disque optique |
ES2634506T3 (es) | 2007-01-24 | 2017-09-28 | Ravenbrick, Llc | Filtro óptico de conversión descendente conmutado térmicamente |
US7973998B2 (en) * | 2007-05-18 | 2011-07-05 | Serious Materials, Inc. | Temperature activated optical films |
CA2693022C (en) | 2007-07-11 | 2011-10-25 | Ravenbrick, Llc | Thermally switched reflective optical shutter |
WO2009039423A1 (en) | 2007-09-19 | 2009-03-26 | Ravenbrick, Llc | Low-emissivity window films and coatings incoporating nanoscale wire grids |
US8169685B2 (en) | 2007-12-20 | 2012-05-01 | Ravenbrick, Llc | Thermally switched absorptive window shutter |
JP5344181B2 (ja) * | 2008-02-06 | 2013-11-20 | 日本電気株式会社 | ウォブル有無判定装置、媒体判別装置、ウォブル有無判定方法および媒体判別方法 |
US8270266B2 (en) * | 2008-04-17 | 2012-09-18 | Mediatek Inc. | Methods and devices for detecting wobbles on an optical disc |
CN102187262B (zh) | 2008-08-20 | 2013-06-19 | 雷文布里克有限责任公司 | 用于制作热致变色滤光器的方法 |
US8643795B2 (en) | 2009-04-10 | 2014-02-04 | Ravenbrick Llc | Thermally switched optical filter incorporating a refractive optical structure |
WO2010118422A2 (en) | 2009-04-10 | 2010-10-14 | Ravenbrick, Llc | Thermally switched optical filter incorporating a guest-host architecture |
US8947760B2 (en) | 2009-04-23 | 2015-02-03 | Ravenbrick Llc | Thermotropic optical shutter incorporating coatable polarizers |
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US8014246B2 (en) * | 2009-12-16 | 2011-09-06 | Oracle America, Inc. | Data storage system and method for calibrating same |
CN103038701B (zh) | 2010-03-29 | 2017-01-18 | 雷文布里克有限责任公司 | 聚合物稳定的热致液晶装置 |
CA2801399C (en) | 2010-06-01 | 2016-03-29 | Ravenbrick, Llc | Multifunctional building component |
US8958167B1 (en) * | 2013-12-23 | 2015-02-17 | Western Digital Technologies, Inc. | Detection of disk surface irregularities in data storage devices |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03175715A (ja) * | 1989-12-04 | 1991-07-30 | Sony Corp | ディジタル情報信号再生装置 |
JP2516577B2 (ja) * | 1990-01-12 | 1996-07-24 | 松下電器産業株式会社 | 光デェスク信号再生装置 |
JP3461017B2 (ja) * | 1993-10-29 | 2003-10-27 | 株式会社ケンウッド | 光ディスク装置のスピンドル制御回路 |
JPH07320270A (ja) * | 1994-05-23 | 1995-12-08 | Olympus Optical Co Ltd | 光学式情報記録再生装置 |
JPH08185664A (ja) * | 1994-12-28 | 1996-07-16 | Kenwood Corp | 光ディスク装置のワブル検出回路 |
JP3458502B2 (ja) | 1995-01-11 | 2003-10-20 | ソニー株式会社 | 光ディスク装置 |
JP3889457B2 (ja) * | 1996-03-13 | 2007-03-07 | パイオニア株式会社 | 回転制御装置及び回転制御方法 |
JP3787015B2 (ja) * | 1997-04-14 | 2006-06-21 | 三菱電機株式会社 | ディスク回転制御装置 |
JP2999982B2 (ja) * | 1997-06-05 | 2000-01-17 | 三洋電機株式会社 | ディスク再生装置、及び再生回路 |
JP3330059B2 (ja) * | 1997-06-20 | 2002-09-30 | 株式会社日立製作所 | 情報記録再生方法及びそれを用いた情報記録再生装置 |
JPH1125486A (ja) * | 1997-07-02 | 1999-01-29 | Lg Electron Inc | 光ディスク・ドライブ装置 |
JP3699813B2 (ja) | 1997-09-25 | 2005-09-28 | 株式会社リコー | 光ディスク装置 |
JP3834418B2 (ja) | 1997-11-17 | 2006-10-18 | 株式会社日立製作所 | 光ディスク装置、ウォブル信号抽出方法 |
JP3732650B2 (ja) | 1998-03-26 | 2006-01-05 | パイオニア株式会社 | プリピット検出装置 |
JP4102483B2 (ja) * | 1998-06-02 | 2008-06-18 | パイオニア株式会社 | 情報記録装置 |
JP2000076684A (ja) * | 1998-09-01 | 2000-03-14 | Pioneer Electronic Corp | 情報記録装置 |
JP3872235B2 (ja) * | 1998-10-21 | 2007-01-24 | パイオニア株式会社 | プリピット検出装置 |
-
2000
- 2000-03-16 JP JP2000079288A patent/JP4422855B2/ja not_active Expired - Lifetime
-
2001
- 2001-02-28 US US09/794,393 patent/US6785207B2/en not_active Expired - Lifetime
- 2001-03-15 TW TW090106109A patent/TW509927B/zh not_active IP Right Cessation
- 2001-03-15 KR KR10-2001-0013338A patent/KR100424232B1/ko not_active IP Right Cessation
- 2001-03-16 CN CNB01111729XA patent/CN1193352C/zh not_active Expired - Fee Related
- 2001-03-16 CN CNB2004100040912A patent/CN1299265C/zh not_active Expired - Fee Related
-
2004
- 2004-05-03 US US10/836,213 patent/US7133335B2/en not_active Expired - Fee Related
-
2006
- 2006-10-12 US US11/546,289 patent/US7295499B2/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100394480C (zh) * | 2003-08-20 | 2008-06-11 | 三星电子株式会社 | 平台预凹坑数据检测装置及其方法 |
US7440367B2 (en) | 2003-08-20 | 2008-10-21 | Samsung Electronics Co., Ltd. | Land Pre-Pit data detection apparatus and method thereof |
CN100345191C (zh) * | 2004-01-06 | 2007-10-24 | 松下电器产业株式会社 | 摆频信号提取电路和光盘驱动器 |
CN100353427C (zh) * | 2004-06-24 | 2007-12-05 | 夏普株式会社 | 光盘装置 |
CN100373464C (zh) * | 2004-10-25 | 2008-03-05 | 索尼株式会社 | 增益调节方法、电路和具有相同增益调节电路的光盘设备 |
CN101458937B (zh) * | 2007-12-13 | 2011-07-06 | 索尼株式会社 | 摆动信号提取电路和光盘装置 |
CN101807410A (zh) * | 2009-02-17 | 2010-08-18 | 索尼公司 | 光盘重放设备和光盘记录/重放设备 |
CN110962046A (zh) * | 2019-11-25 | 2020-04-07 | 佛山缔乐视觉科技有限公司 | 五金件的缺陷识别方法、系统及存储介质 |
Also Published As
Publication number | Publication date |
---|---|
KR20010092354A (ko) | 2001-10-24 |
US20010026512A1 (en) | 2001-10-04 |
TW509927B (en) | 2002-11-11 |
CN1193352C (zh) | 2005-03-16 |
CN1299265C (zh) | 2007-02-07 |
KR100424232B1 (ko) | 2004-03-24 |
JP4422855B2 (ja) | 2010-02-24 |
US20070030769A1 (en) | 2007-02-08 |
CN1560836A (zh) | 2005-01-05 |
US20040202092A1 (en) | 2004-10-14 |
US6785207B2 (en) | 2004-08-31 |
US7295499B2 (en) | 2007-11-13 |
US7133335B2 (en) | 2006-11-07 |
JP2001266486A (ja) | 2001-09-28 |
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