WO1997029483A1 - Disque optique, dispositif pour disque optique et procede pour reproduire une information sur un disque optique - Google Patents
Disque optique, dispositif pour disque optique et procede pour reproduire une information sur un disque optique Download PDFInfo
- Publication number
- WO1997029483A1 WO1997029483A1 PCT/JP1997/000337 JP9700337W WO9729483A1 WO 1997029483 A1 WO1997029483 A1 WO 1997029483A1 JP 9700337 W JP9700337 W JP 9700337W WO 9729483 A1 WO9729483 A1 WO 9729483A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical disk
- information
- address
- tmax
- recording
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
-
- 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
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1232—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc sector, i.e. the minimal addressable physical data unit
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1267—Address data
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1267—Address data
- G11B2020/1274—Address data stored in pre-pits, i.e. in embossed pits, ROM marks or prepits
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1287—Synchronisation pattern, e.g. VCO fields
-
- 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
-
- 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
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
-
- 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
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24073—Tracks
- G11B7/24082—Meandering
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69703790T DE69703790T2 (de) | 1996-02-08 | 1997-02-07 | Optische platte, optisches plattengerät und verfahren zur wiedergabe von informationen auf einer optischen platte |
US09/117,825 US6208603B1 (en) | 1996-02-08 | 1997-02-07 | Optical disk, optical disk device, and method of reproducing information on optical disk |
KR1019980706291A KR100318359B1 (ko) | 1996-02-08 | 1997-02-07 | 광디스크 |
EP97902635A EP0880129B1 (en) | 1996-02-08 | 1997-02-07 | Optical disk, optical disk device, and method of reproducing information on optical disk |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/22273 | 1996-02-08 | ||
JP2227396 | 1996-02-08 |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/568,954 Continuation US6266309B1 (en) | 1996-02-08 | 2000-05-11 | Optical disk, optical disk device, and method of reproducing information on optical disk |
US09/569,385 Continuation US6269069B1 (en) | 1996-02-08 | 2000-05-11 | Optical disk, optical disk device, and method of reproducing information on optical disk |
US09/568,885 Continuation US6266307B1 (en) | 1996-02-08 | 2000-05-11 | Optical disk, optical disk device, and method of reproducing information on optical disk |
US09/568,956 Continuation US6269068B1 (en) | 1996-02-08 | 2000-05-11 | Optical disk, optical disk device, and method of reproducing information on optical disk |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997029483A1 true WO1997029483A1 (fr) | 1997-08-14 |
Family
ID=12078163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/000337 WO1997029483A1 (fr) | 1996-02-08 | 1997-02-07 | Disque optique, dispositif pour disque optique et procede pour reproduire une information sur un disque optique |
Country Status (7)
Country | Link |
---|---|
US (7) | US6208603B1 (ja) |
EP (7) | EP1022738B1 (ja) |
KR (1) | KR100318359B1 (ja) |
CN (1) | CN1110799C (ja) |
DE (6) | DE69713815T2 (ja) |
HK (1) | HK1011575A1 (ja) |
WO (1) | WO1997029483A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0933769A2 (en) * | 1998-02-03 | 1999-08-04 | Mitsubishi Denki Kabushiki Kaisha | State detecting device and optical disk device |
WO2001008143A1 (fr) * | 1999-07-28 | 2001-02-01 | Matsushita Electric Industrial Co., Ltd. | Procede de commande de la puissance d'un laser et dispositif a disque optique |
US6584066B2 (en) | 1999-12-07 | 2003-06-24 | Fujitsu Limited | Optical storage medium in which sector address information is recorded using MSR techniques |
US7035183B2 (en) | 1997-12-09 | 2006-04-25 | Matsushita Electric Industrial Co., Ltd. | Optical disc recording and reproduction apparatus having automatic gate signal generation modes |
US7215634B2 (en) * | 2000-12-22 | 2007-05-08 | Koninklijke Philips Electronics N. V. | Multi-layer record carrier and method of manufacturing thereof and recording thereon, with reduced transmission differences in the upper layer |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3962439B2 (ja) * | 1996-06-21 | 2007-08-22 | パイオニア株式会社 | 情報記録装置及び情報記録方法並びに情報再生装置及び情報再生方法 |
US6687826B1 (en) * | 1997-12-29 | 2004-02-03 | Sony Corporation | Optical disc and method of recording data into same |
JP2000215452A (ja) * | 1999-01-19 | 2000-08-04 | Victor Co Of Japan Ltd | 光ディスク記録再生装置及び光ディスク |
WO2000045382A1 (fr) * | 1999-01-29 | 2000-08-03 | Matsushita Electric Industrial Co., Ltd. | Support de stockage de type disque et procede de poursuite utilisant celui-ci |
EP1045391A1 (en) * | 1999-04-16 | 2000-10-18 | Koninklijke Philips Electronics N.V. | Method and device for recording information in units |
KR100636091B1 (ko) * | 1999-04-21 | 2006-10-19 | 삼성전자주식회사 | 광 기록 매체와 그 기록 방법 |
US7012861B1 (en) * | 1999-07-16 | 2006-03-14 | Lg Electronics Inc. | Track jump method for a recording medium |
US7315492B2 (en) * | 1999-07-16 | 2008-01-01 | Lg Electronics Inc. | Header mask signal generating track jump method for a recording medium |
JP2001184801A (ja) * | 1999-12-24 | 2001-07-06 | Sony Corp | 光記録媒体および記録再生装置 |
JP2002007073A (ja) * | 2000-06-22 | 2002-01-11 | Pioneer Electronic Corp | 情報出力装置及び情報出力方法、情報記録装置及び情報記録方法、情報出力記録システム並びに情報記録媒体 |
EP2261925A3 (en) * | 2000-08-31 | 2012-10-17 | Panasonic Corporation | Optical disc and physical address format |
CN101383163B (zh) * | 2000-08-31 | 2012-05-02 | 松下电器产业株式会社 | 光盘及其读取和记录方法 |
AU2002213862A1 (en) * | 2000-09-05 | 2002-03-22 | Koninklijke Philips Electronics N.V. | Information carrier, apparatus for retrieving information from the information carrier and apparatus for recording information on the information carrier |
JP4348851B2 (ja) * | 2000-09-21 | 2009-10-21 | ソニー株式会社 | 記録媒体、ディスク記録装置および方法、並びにディスク再生装置及び方法 |
KR100716956B1 (ko) * | 2000-10-11 | 2007-05-10 | 삼성전자주식회사 | 데이터 변조 방법 및 그 검출 방법 |
JP2002342942A (ja) * | 2001-05-14 | 2002-11-29 | Toshiba Corp | 情報記憶媒体、情報記録方法、および情報記録再生装置 |
JP3559540B2 (ja) * | 2001-09-07 | 2004-09-02 | 株式会社東芝 | 多目的情報記憶媒体及び記憶方法及び再生方法及び再生装置 |
JP3994708B2 (ja) * | 2001-09-17 | 2007-10-24 | ティアック株式会社 | 光ディスク装置 |
EP1440440B1 (en) * | 2001-10-15 | 2012-08-08 | Koninklijke Philips Electronics N.V. | Record carrier and apparatus for scanning the record carrier |
KR20040016536A (ko) * | 2002-08-17 | 2004-02-25 | 엘지전자 주식회사 | 고밀도 재생 전용 광디스크의 어드레스 정보 기록방법과,그에 따른 고밀도 재생 전용 광디스크 |
CN1592929A (zh) * | 2002-08-17 | 2005-03-09 | Lg电子株式会社 | 高密度光盘、用于在高密度光盘上记录盘地址和 /或伺服信息的方法以及用于再现记录在高密度光盘上的数据的方法 |
JP4451310B2 (ja) * | 2002-08-22 | 2010-04-14 | エルジー エレクトロニクス インコーポレイティド | 高密度光ディスク及びその記録または再生方法 |
DK1597727T3 (da) * | 2003-02-20 | 2012-04-16 | Koninkl Philips Electronics Nv | Informationsbærer omfattende adgangsinformation |
KR100932506B1 (ko) | 2003-02-27 | 2009-12-17 | 엘지전자 주식회사 | 고밀도 광디스크의 재생 제어정보 관리 및 데이터 재생제어방법 |
CN1764953A (zh) * | 2003-03-24 | 2006-04-26 | 皇家飞利浦电子股份有限公司 | 具有焦距偏移区域的光盘 |
JP3584033B1 (ja) * | 2003-03-25 | 2004-11-04 | 株式会社リコー | 情報記録方法、情報記録装置、プログラム及び記憶媒体 |
TW200502921A (en) * | 2003-07-01 | 2005-01-16 | Mediatek Inc | System and method for judging recording area of optical storage medium |
BRPI0415078A (pt) * | 2003-10-09 | 2006-12-12 | Koninkl Philips Electronics Nv | portador de gravação, e, dispositivo para varrer uma trilha sobre um portador de gravação |
US7248557B2 (en) * | 2003-10-30 | 2007-07-24 | Plasmon Lms, Inc. | Robust header configuration and method for reading sector identifiers contained therein |
JP2005141818A (ja) * | 2003-11-05 | 2005-06-02 | Teac Corp | 光ディスク装置 |
JP2007109288A (ja) * | 2005-10-12 | 2007-04-26 | Hitachi Ltd | 光ディスク装置および光ディスク |
JP4728102B2 (ja) * | 2005-11-15 | 2011-07-20 | パナソニック株式会社 | トラッキングエラー制御装置、トラッキングエラー制御回路、およびトラッキングエラー制御方法 |
US7424922B2 (en) * | 2005-11-21 | 2008-09-16 | Hall David R | Rotary valve for a jack hammer |
US7533737B2 (en) * | 2005-11-21 | 2009-05-19 | Hall David R | Jet arrangement for a downhole drill bit |
US7624824B2 (en) * | 2005-12-22 | 2009-12-01 | Hall David R | Downhole hammer assembly |
US7641002B2 (en) * | 2005-11-21 | 2010-01-05 | Hall David R | Drill bit |
US7559379B2 (en) * | 2005-11-21 | 2009-07-14 | Hall David R | Downhole steering |
US7591327B2 (en) * | 2005-11-21 | 2009-09-22 | Hall David R | Drilling at a resonant frequency |
US8205688B2 (en) * | 2005-11-21 | 2012-06-26 | Hall David R | Lead the bit rotary steerable system |
US7967082B2 (en) * | 2005-11-21 | 2011-06-28 | Schlumberger Technology Corporation | Downhole mechanism |
US7549489B2 (en) | 2006-03-23 | 2009-06-23 | Hall David R | Jack element with a stop-off |
US8297375B2 (en) * | 2005-11-21 | 2012-10-30 | Schlumberger Technology Corporation | Downhole turbine |
US7497279B2 (en) * | 2005-11-21 | 2009-03-03 | Hall David R | Jack element adapted to rotate independent of a drill bit |
US7900720B2 (en) | 2006-01-18 | 2011-03-08 | Schlumberger Technology Corporation | Downhole drive shaft connection |
US8240404B2 (en) * | 2006-08-11 | 2012-08-14 | Hall David R | Roof bolt bit |
US20080035389A1 (en) * | 2006-08-11 | 2008-02-14 | Hall David R | Roof Mining Drill Bit |
US7392857B1 (en) * | 2007-01-03 | 2008-07-01 | Hall David R | Apparatus and method for vibrating a drill bit |
US7721826B2 (en) * | 2007-09-06 | 2010-05-25 | Schlumberger Technology Corporation | Downhole jack assembly sensor |
JP4997211B2 (ja) * | 2008-10-23 | 2012-08-08 | 株式会社日立製作所 | 光ディスク、光ディスク記録方法及び装置、光ディスク再生方法及び装置 |
US8701799B2 (en) | 2009-04-29 | 2014-04-22 | Schlumberger Technology Corporation | Drill bit cutter pocket restitution |
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- 1997-02-07 EP EP00105752A patent/EP1022738B1/en not_active Expired - Lifetime
- 1997-02-07 EP EP00105753A patent/EP1022739B1/en not_active Expired - Lifetime
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- 1997-02-07 EP EP00105675A patent/EP1022737B1/en not_active Expired - Lifetime
- 1997-02-07 DE DE69714790T patent/DE69714790T2/de not_active Expired - Lifetime
- 1997-02-07 CN CN97193686A patent/CN1110799C/zh not_active Expired - Lifetime
- 1997-02-07 DE DE69703790T patent/DE69703790T2/de not_active Expired - Lifetime
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- 1997-02-07 DE DE69714477T patent/DE69714477T2/de not_active Expired - Lifetime
- 1997-02-07 EP EP02007349A patent/EP1229523A3/en not_active Ceased
- 1997-02-07 US US09/117,825 patent/US6208603B1/en not_active Expired - Lifetime
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1998
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2000
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US7768891B2 (en) | 1997-12-09 | 2010-08-03 | Panasonic Corporation | Optical disc recording and reproduction apparatus having automatic gate signal generation modes |
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US7508741B2 (en) | 1997-12-09 | 2009-03-24 | Panasonic Corporation | Optical disc recording and reproduction apparatus having automatic gate signal generation modes |
US7035183B2 (en) | 1997-12-09 | 2006-04-25 | Matsushita Electric Industrial Co., Ltd. | Optical disc recording and reproduction apparatus having automatic gate signal generation modes |
EP0933769A3 (en) * | 1998-02-03 | 1999-10-20 | Mitsubishi Denki Kabushiki Kaisha | State detecting device and optical disk device |
US6421308B1 (en) | 1998-02-03 | 2002-07-16 | Mitsubishi Denki Kabushiki Kaisha | State detecting device and optical disk device |
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US6950378B1 (en) | 1999-07-28 | 2005-09-27 | Matsushita Electric Industrial Co., Ltd. | Laser power control method and optical disk device |
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US7260027B2 (en) | 1999-12-07 | 2007-08-21 | Fujitsu Limited | Optical storage medium in which sector address information is recorded using MSR techniques |
US6788625B2 (en) | 1999-12-07 | 2004-09-07 | Fujitsu Limited | Optical storage medium in which sector address information is recorded using MSR techniques |
US6584066B2 (en) | 1999-12-07 | 2003-06-24 | Fujitsu Limited | Optical storage medium in which sector address information is recorded using MSR techniques |
US7215634B2 (en) * | 2000-12-22 | 2007-05-08 | Koninklijke Philips Electronics N. V. | Multi-layer record carrier and method of manufacturing thereof and recording thereon, with reduced transmission differences in the upper layer |
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