HK45796A - Recording system as well as record carrier and recording apparatus for use in the system - Google Patents

Recording system as well as record carrier and recording apparatus for use in the system Download PDF

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Publication number
HK45796A
HK45796A HK45796A HK45796A HK45796A HK 45796 A HK45796 A HK 45796A HK 45796 A HK45796 A HK 45796A HK 45796 A HK45796 A HK 45796A HK 45796 A HK45796 A HK 45796A
Authority
HK
Hong Kong
Prior art keywords
information
recording
control
track
record carrier
Prior art date
Application number
HK45796A
Other languages
German (de)
English (en)
Inventor
Cornelis Petrus Lokhoff Gerardus
Roth Rudolf
Petrus Maris Raaijmakers Wilhelmus
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19852309&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK45796(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of HK45796A publication Critical patent/HK45796A/en

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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
    • G11B20/00086—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
    • 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
    • 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
    • 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)
  • Automatic Disk Changers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Television Signal Processing For Recording (AREA)
  • Heat Treatment Of Steel (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Claims (13)

  1. Système d'enregistrement d'information comportant un support d'enregistrement (2) de type enregistrable et un appareil d'enregistrement (1) comportant des moyens d'écriture (10) pour enregistrer de l'information reçue sur le support d'enregistrement (2), système dans lequel le support d'enregistrement est conditionné préalablement par une configuration d'information de commande indiquant le(s) type(s) d'information au(x)quel(s) est destiné le support d'enregistrement concerné et dans lequel l'appareil d'enregistrement (1) comporte des moyens (12; 81,82) de lecture de l'information de commande présentée par les configurations d'information de commande pour engendrer un signal d'indication indicatif du type d'information devant être engendré, et des moyens de commande (11) pour commander le processus d'enregistrement de façon que l'information appliquée ne soit enregistrée que si l'information de commande lue correspond au signal d'indication, caractérisé en ce que le support d'enregistrement est pourvu d'une servopiste préalablement formée ou enregistrée (246), la configuration d'information de commande étant formée d'une modulation de piste préalablement formée ou enregistrée de la servopiste, dans des parties de servopiste conçues pour l'enregistrement d'information, en ce que l'appareil comporte des moyens (10a) pour explorer la servopiste (246) et en ce que les moyens de lecture (81,82) comportent des moyens pour détecter la modulation de piste au cours de l'exploration et pour déduire l'information de commande de la modulation de piste détectée.
  2. Système selon la revendication 1, caractérisé en ce que l'appareil d'enregistrement comporte au moins deux étages d'entrée (4, 5, 6) pour recevoir l'information devant être enregistrée et en ce que les moyens pour engendrer le signal d'indication sont agencés pour déduire le signal d'indication selon le type d'étage d'entrée (4,5,6) utilisé.
  3. Système selon la revendication 2, caractérisé en ce que l'appareil d'enregistrement comporte au moins deux étages d'entrée (4,5,6) pour recevoir l'information de deux types différents et des moyens de sélection (13) pour choisir l'un des étages d'entrée (4,5,6), et en ce que les moyens de commande (11) sont agencés pour détecter, selon l'étage d'entrée choisi (4,5,6), le type de l'information devant être enregistrée.
  4. Système selon la revendication 1 à 3, caractérisé en ce que le support d'enregistrement est de type effaçable, la configuration d'information de commande de conditionnement préalable étant de type non effaçable.
  5. Système selon la revendication 1, caractérisé en ce que la configuration d'information de commande est également prévue dans une partie (24a) de la servopiste qui ne constitue pas la partie de la servopiste destinée à l'enregistrement de l'information présentée.
  6. Système selon la revendication 1, caractérisé en ce que l'appareil d'enregistrement comporte un dispositif d'exploration optique (10a) pour explorer la servopiste (24) par un faisceau de rayonnement aux fins de l'enregistrement, les moyens de lecture comportant un détecteur photosensible (81) pour détecter le faisceau de rayonnement modulé, au cours de l'exploration, par la modulation de piste.
  7. Système selon la revendication 6, caractérisé en ce que l'information de commande représentée par la modulation de piste comporte un signal d'information de position indiquant la position de la partie de piste concernée par rapport au début de la servopiste (24), en ce que l'appareil d'enregistrement comporte des moyens de conversion (9a, 9b) pour convertir, avant l'enregistrement, l'information reçue en un signal satisfaisant à la norme CD, les moyens de commande (4) étant agencés pour ajouter, selon l'information de position lue, de l'information de sous-code à l'information devant être enregistrée, les moyens de commande (4) étant agencés pour ne fournir l'information de sous-code que si le signal d'indication correspond à l'un des types d'information à enregistrer indiqués par l'information de commande lue.
  8. Système selon la revendication 6 ou 7, caractérisé en ce que l'information de commande représentée par la modulation de piste comporte des signaux d'information de position (32) et des signaux de synchronisation (31) , les signaux de synchronisation (31) pouvant être distingués d'entre les signaux d'information de position (32) et le type de signal de synchronisation (31) indiquant le(s) type(s) admissible(s) d'information pour le support d'enregistrement concerné (2).
  9. Système selon la revendication 8, caractérisé en ce que le signal d'information de position (32) est modulé à "marques biphasées", les signaux de synchronisation (31) ayant une forme d'onde de signal qui diffère de la modulation à "marques biphasées".
  10. Système selon la revendication 8 ou 9, caractérisé en ce que la modulation de piste est une ondulation de piste radiale dont la fréquence est modulée en correspondance avec le signal de commande.
  11. Système selon les revendications 1, 5 et l'une quelconque des revendications 6 à 10, caractérisé en ce que la servopiste comporte une partie de départ (24a) dans laquelle un signal d'information selon la norme CD est enregistré sous la forme d'une configuration d'information préalablement formée, ladite information de commande étant insérée dans le canal Q de sous-code.
  12. Support d'enregistrement comportant toutes les particularités techniques de support d'enregistrement telles que définies dans l'une quelconque des revendications précédentes.
  13. Appareil d'enregistrement comportant toutes les particularités techniques d'appareil d'enregistrement telles que définies dans l'une quelconque des revendications 1 à 11.
HK45796A 1988-05-18 1996-03-14 Recording system as well as record carrier and recording apparatus for use in the system HK45796A (en)

Applications Claiming Priority (1)

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.

Publications (1)

Publication Number Publication Date
HK45796A true HK45796A (en) 1996-03-22

Family

ID=19852309

Family Applications (1)

Application Number Title Priority Date Filing Date
HK45796A HK45796A (en) 1988-05-18 1996-03-14 Recording system as well as record carrier and recording apparatus for use in the system

Country Status (14)

Country Link
US (1) US5060219A (fr)
EP (1) EP0342748B1 (fr)
JP (1) JP2840631B2 (fr)
KR (1) KR0148118B1 (fr)
CN (1) CN1020977C (fr)
AT (1) ATE101295T1 (fr)
AU (1) AU634709B2 (fr)
CA (1) CA1330591C (fr)
CZ (1) CZ284218B6 (fr)
DE (1) DE68912823T2 (fr)
ES (1) ES2050780T3 (fr)
HK (1) HK45796A (fr)
NL (1) NL8801275A (fr)
SK (1) SK280684B6 (fr)

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ATE130695T1 (de) * 1989-05-08 1995-12-15 Philips Electronics Nv Informationsaufzeichnungssystem, aufzeichnungsverfahren und aufzeichnungsträger zur anwendung in einem derartigen informationsaufzeichnungssystem.
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ES2122981T3 (es) * 1991-04-02 1999-01-01 Philips Electronics Nv Soporte de registro, aparato de lectura de un soporte de registro, asi como un metodo y aparato de registro para el registro de la informacion en un soporte de registro.
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
DE69233335T2 (de) * 1991-12-02 2005-02-10 Koninklijke Philips Electronics N.V. Geschlossenes Informationssystem mit Kopierschutz
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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
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DE68912823T2 (de) 1994-08-04
US5060219A (en) 1991-10-22
CZ284218B6 (cs) 1998-09-16
NL8801275A (nl) 1989-12-18
SK287089A3 (en) 1995-01-12
AU634709B2 (en) 1993-03-04
JPH0250360A (ja) 1990-02-20
CZ287089A3 (cs) 1998-07-15
ES2050780T3 (es) 1994-06-01
SK280684B6 (sk) 2000-06-12
EP0342748B1 (fr) 1994-02-02
DE68912823D1 (de) 1994-03-17
KR0148118B1 (ko) 1998-10-15
EP0342748A1 (fr) 1989-11-23
ATE101295T1 (de) 1994-02-15
AU3480589A (en) 1989-11-23
JP2840631B2 (ja) 1998-12-24
CA1330591C (fr) 1994-07-05
KR900018924A (ko) 1990-12-22
CN1020977C (zh) 1993-05-26
CN1037790A (zh) 1989-12-06

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