ATE101295T1 - Aufzeichnungssystem sowie aufzeichnungstraeger und aufzeichnungsgeraet zur anwendung im system. - Google Patents
Aufzeichnungssystem sowie aufzeichnungstraeger und aufzeichnungsgeraet zur anwendung im system.Info
- Publication number
- ATE101295T1 ATE101295T1 AT89201206T AT89201206T ATE101295T1 AT E101295 T1 ATE101295 T1 AT E101295T1 AT 89201206 T AT89201206 T AT 89201206T AT 89201206 T AT89201206 T AT 89201206T AT E101295 T1 ATE101295 T1 AT E101295T1
- Authority
- AT
- Austria
- Prior art keywords
- recording
- information
- control
- record carrier
- type
- Prior art date
Links
- 230000002401 inhibitory effect Effects 0.000 abstract 1
Classifications
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- 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
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- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/24—Arrangements for providing constant relative speed between record carrier and head
- G11B19/247—Arrangements for providing constant relative speed between record carrier and head using electrical means
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
- G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0071—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
-
- 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
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
-
- 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
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
-
- 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
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not 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
-
- 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
- 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
- G11B27/3063—Subcodes
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- 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
- G11B27/32—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 separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with 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
- G11B7/007—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
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
-
- 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
-
- 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
- G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
-
- 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
- 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
- G11B2220/213—Read-only 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
- G11B2220/21—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
- G11B2220/2525—Magneto-optical [MO] 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
- G11B2220/2545—CDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/60—Solid state media
- G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Television Signal Processing For Recording (AREA)
- Heat Treatment Of Steel (AREA)
- Automatic Disk Changers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8801275A NL8801275A (nl) | 1988-05-18 | 1988-05-18 | Optekensysteem alsmede registratiedrager en schrijfinrichting voor toepassing in het systeem. |
EP89201206A EP0342748B1 (de) | 1988-05-18 | 1989-05-12 | Aufzeichnungssystem sowie Aufzeichnungsträger und Aufzeichnungsgerät zur Anwendung im System |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE101295T1 true ATE101295T1 (de) | 1994-02-15 |
Family
ID=19852309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT89201206T ATE101295T1 (de) | 1988-05-18 | 1989-05-12 | Aufzeichnungssystem sowie aufzeichnungstraeger und aufzeichnungsgeraet zur anwendung im system. |
Country Status (14)
Country | Link |
---|---|
US (1) | US5060219A (de) |
EP (1) | EP0342748B1 (de) |
JP (1) | JP2840631B2 (de) |
KR (1) | KR0148118B1 (de) |
CN (1) | CN1020977C (de) |
AT (1) | ATE101295T1 (de) |
AU (1) | AU634709B2 (de) |
CA (1) | CA1330591C (de) |
CZ (1) | CZ284218B6 (de) |
DE (1) | DE68912823T2 (de) |
ES (1) | ES2050780T3 (de) |
HK (1) | HK45796A (de) |
NL (1) | NL8801275A (de) |
SK (1) | SK280684B6 (de) |
Families Citing this family (85)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5418764A (en) * | 1988-01-22 | 1995-05-23 | U.S. Philips Corporation | Recording device, a record carrier having preformatted address codes and auxiliary codes providing control data for use by the recording device, and an information recording system including both the recording device and the record carrier |
DE69023692T2 (de) * | 1989-05-08 | 1996-06-27 | Philips Electronics Nv | Informationsaufzeichnungssystem, Aufzeichnungsverfahren und Aufzeichnungsträger zur Anwendung in einem derartigen Informationsaufzeichnungssystem. |
JP2751533B2 (ja) * | 1990-02-26 | 1998-05-18 | ソニー株式会社 | 記録制御装置 |
DE69226031T2 (de) * | 1991-04-02 | 1999-02-11 | Philips Electronics Nv | Verfahren und Anordnung zum Aufzeichnen von Informationsteilen in einer Spur eines Aufzeichnungsträgers sowie Einrichtung zum Auslesen eines auf diese Weise erhaltenen Aufzeichnungsträgers |
US5341356A (en) * | 1991-04-02 | 1994-08-23 | U.S. Philips Corporation | Method and device for recording information volumes in a track of a record carrier, and a device for reading the record carrier |
US5878019A (en) * | 1991-04-02 | 1999-03-02 | U.S. Philips Corporation | Record carrier having at least two information volumes |
JP3180366B2 (ja) * | 1991-04-19 | 2001-06-25 | ソニー株式会社 | 記録再生装置及び記録再生方法 |
DE4135419A1 (de) * | 1991-10-26 | 1993-04-29 | Thomson Brandt Gmbh | Speichereinrichtung fuer eine magnetbandkassette |
EP0545472B1 (de) * | 1991-12-02 | 1999-10-20 | Koninklijke Philips Electronics N.V. | Geschlossenes Informationssystem mit Kopierschutz |
DE69233335T2 (de) * | 1991-12-02 | 2005-02-10 | Koninklijke Philips Electronics N.V. | Geschlossenes Informationssystem mit Kopierschutz |
US5340772A (en) * | 1992-07-17 | 1994-08-23 | Lsi Logic Corporation | Method of increasing the layout efficiency of dies on a wafer and increasing the ratio of I/O area to active area per die |
JP3440952B2 (ja) * | 1993-02-24 | 2003-08-25 | ソニー株式会社 | データ記録方法及びデータ再生方法 |
TW399749U (en) * | 1993-07-28 | 2000-07-21 | Sega Enterprises Kk | Data recording medium and electronic device using this medium |
US6102800A (en) * | 1993-07-28 | 2000-08-15 | Sega Enterprises, Ltd. | Information storage medium and electronic device using the same |
JP2945569B2 (ja) * | 1993-10-27 | 1999-09-06 | シャープ株式会社 | 情報記録再生方法 |
JPH0837567A (ja) * | 1994-07-26 | 1996-02-06 | Olympus Optical Co Ltd | 情報記録媒体及び情報再生装置 |
EP1912422A2 (de) * | 1994-08-31 | 2008-04-16 | Sony Corporation | System für unbewegte Bilder |
JPH08147704A (ja) * | 1994-11-18 | 1996-06-07 | Sony Corp | ディスク状記録媒体、ディスク再生方法及び再生装置 |
MY129681A (en) * | 1994-12-22 | 2007-04-30 | Sony Corp | Recording medium and apparatus for protecting copyrighted digital data |
US6490113B2 (en) | 1994-12-22 | 2002-12-03 | Sony Corporation | Recording medium and apparatus for protecting copyrighted digital data |
US6658568B1 (en) | 1995-02-13 | 2003-12-02 | Intertrust Technologies Corporation | Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management |
US7133846B1 (en) * | 1995-02-13 | 2006-11-07 | Intertrust Technologies Corp. | Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management |
GB2301930B (en) * | 1995-06-06 | 1999-06-30 | Sony Corp | Information data reproducing system reproducing apparatus reproducing method data forming apparatus and data record medium |
KR100349029B1 (ko) * | 1997-08-16 | 2002-12-16 | 엘지전자 주식회사 | 기록매체 |
EP0961276A1 (de) | 1998-05-26 | 1999-12-01 | Koninklijke Philips Electronics N.V. | Verfahren zur Informationsaufzeichnung auf einen Aufzeichnungsträger, Aufzeichnungsgerät und Aufzeichnungsträger |
DE69912613T2 (de) * | 1998-07-29 | 2004-04-15 | Matsushita Electric Industrial Co., Ltd., Kadoma | Weidergabegerät und aufgezeichnetes medium |
CN1192379C (zh) * | 1998-10-05 | 2005-03-09 | 皇家菲利浦电子有限公司 | 用于记录信息拷贝保护的系统 |
CN1501365B (zh) * | 1999-01-27 | 2023-04-25 | 皇家菲利浦电子有限公司 | 记录载体和提供记录载体的方法 |
US6330210B1 (en) | 1999-04-29 | 2001-12-11 | Hewlett-Packard Company | Data structure for control information on rewriteable data storage media |
SG103842A1 (en) * | 1999-05-21 | 2004-05-26 | Matsushita Electric Ind Co Ltd | Optical disk, and recording/reproducing apparatus and recording method for optical disk |
US6590846B2 (en) | 1999-05-21 | 2003-07-08 | Matsushita Electric Industrial Co., Ltd. | Recordable optical disk |
PL360984A1 (en) | 2000-12-11 | 2004-09-20 | Koninklijke Philips Electronics N.V. | Record carrier of the optical type and a device for recording and/or playback for use with such a record carrier |
KR100869279B1 (ko) | 2000-12-11 | 2008-11-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학형 기록매체와 이 기록매체에 사용되는 기록 및/또는재생 장치 |
AU2001297777C1 (en) | 2000-12-14 | 2008-11-06 | Sca Ipla Holdings, Inc. | Systems and methods for optical media modification |
US6813226B2 (en) | 2001-01-25 | 2004-11-02 | Dphi Acquisitions, Inc. | Calibration of a focus sum threshold in a focus servo system |
US6909676B2 (en) | 2001-01-25 | 2005-06-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with track zero crossing detection |
US7095683B2 (en) * | 2001-01-25 | 2006-08-22 | Dphi Acquisitions, Inc. | Tracking and focus digital servo system with write abort |
US6906985B2 (en) | 2001-01-25 | 2005-06-14 | Dphi Acquisitions, Inc. | Calibration of tracking error signal gain in a tracking servo system |
US6970410B2 (en) * | 2001-01-25 | 2005-11-29 | Dphi Acquisitions, Inc. | Focus detection in a digital focus servo system |
US7522480B2 (en) | 2001-01-25 | 2009-04-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with an acceleration clamp |
US7260031B2 (en) | 2001-01-25 | 2007-08-21 | Dphi Acquisitions, Inc. | Digital focus and tracking servo system with one-track jump |
US7092322B2 (en) * | 2001-01-25 | 2006-08-15 | Dphi Acquisitions, Inc. | Calibration of focus error signal offset in a focus servo system |
US6970403B2 (en) * | 2001-01-25 | 2005-11-29 | Dphi Acquisition, Inc. | Calibration of tracking error signal offset in a tracking servo system |
US6922380B2 (en) | 2001-01-25 | 2005-07-26 | Dphi Acquisitions, Inc. | Tracking and focus servo system with anti-skate algorithm |
US6762980B2 (en) | 2001-01-25 | 2004-07-13 | Dphi Acquisitions, Inc. | Digital tracking servo system with a multi-track seeking and accelerated servo function for regaining a closed tracking loop |
US7492675B2 (en) * | 2001-01-25 | 2009-02-17 | Dphi Acquisitions, Inc. | Digital servo system with calibrated notch filters |
US6882601B2 (en) | 2001-01-25 | 2005-04-19 | Dphi Acquisitions, Inc. | Digital servo system with feed-forward control loops |
US6930963B2 (en) * | 2001-01-25 | 2005-08-16 | Dphi Acquistions, Inc. | Tracking and focus servo system with head load |
US6891781B2 (en) * | 2001-01-25 | 2005-05-10 | Dphi Acquisitions, Inc. | Digital servo system with second order compensator |
US7782721B2 (en) * | 2001-01-25 | 2010-08-24 | Dphi Acquisitions, Inc. | Digital focus and tracking servo system with multi-zone calibration |
US6904007B2 (en) * | 2001-01-25 | 2005-06-07 | Dphi Acquisitions, Inc. | Digital servo system with loop gain calibration |
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GB2104701B (en) * | 1981-08-06 | 1985-06-05 | James Bertram King | Method and apparatus for preventing unauthorised recording of source material (eg, a gramophone recording) |
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-
1988
- 1988-05-18 NL NL8801275A patent/NL8801275A/nl not_active Application Discontinuation
- 1988-12-20 US US07/287,941 patent/US5060219A/en not_active Expired - Lifetime
-
1989
- 1989-05-12 EP EP89201206A patent/EP0342748B1/de not_active Expired - Lifetime
- 1989-05-12 AT AT89201206T patent/ATE101295T1/de not_active IP Right Cessation
- 1989-05-12 DE DE68912823T patent/DE68912823T2/de not_active Expired - Lifetime
- 1989-05-12 ES ES89201206T patent/ES2050780T3/es not_active Expired - Lifetime
- 1989-05-12 SK SK2870-89A patent/SK280684B6/sk not_active IP Right Cessation
- 1989-05-12 CZ CS892870A patent/CZ284218B6/cs not_active IP Right Cessation
- 1989-05-15 CN CN89103475A patent/CN1020977C/zh not_active Expired - Lifetime
- 1989-05-15 CA CA000599668A patent/CA1330591C/en not_active Expired - Lifetime
- 1989-05-16 KR KR1019890006501A patent/KR0148118B1/ko not_active IP Right Cessation
- 1989-05-16 AU AU34805/89A patent/AU634709B2/en not_active Expired
- 1989-05-16 JP JP1120610A patent/JP2840631B2/ja not_active Expired - Lifetime
-
1996
- 1996-03-14 HK HK45796A patent/HK45796A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CZ287089A3 (cs) | 1998-07-15 |
EP0342748A1 (de) | 1989-11-23 |
SK280684B6 (sk) | 2000-06-12 |
JP2840631B2 (ja) | 1998-12-24 |
CN1037790A (zh) | 1989-12-06 |
KR0148118B1 (ko) | 1998-10-15 |
DE68912823D1 (de) | 1994-03-17 |
CN1020977C (zh) | 1993-05-26 |
CA1330591C (en) | 1994-07-05 |
AU634709B2 (en) | 1993-03-04 |
HK45796A (en) | 1996-03-22 |
KR900018924A (ko) | 1990-12-22 |
DE68912823T2 (de) | 1994-08-04 |
SK287089A3 (en) | 1995-01-05 |
CZ284218B6 (cs) | 1998-09-16 |
ES2050780T3 (es) | 1994-06-01 |
JPH0250360A (ja) | 1990-02-20 |
EP0342748B1 (de) | 1994-02-02 |
NL8801275A (nl) | 1989-12-18 |
AU3480589A (en) | 1989-11-23 |
US5060219A (en) | 1991-10-22 |
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EELA | Cancelled due to lapse of time |