ES8503158A1 - Un metodo para permitir la autenticacion de un dispositivo de almacenamiento magnetico - Google Patents

Un metodo para permitir la autenticacion de un dispositivo de almacenamiento magnetico

Info

Publication number
ES8503158A1
ES8503158A1 ES526428A ES526428A ES8503158A1 ES 8503158 A1 ES8503158 A1 ES 8503158A1 ES 526428 A ES526428 A ES 526428A ES 526428 A ES526428 A ES 526428A ES 8503158 A1 ES8503158 A1 ES 8503158A1
Authority
ES
Spain
Prior art keywords
portions
disk
read operation
recording surface
recorded
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.)
Expired
Application number
ES526428A
Other languages
English (en)
Other versions
ES526428A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dysan Corp
Original Assignee
Dysan Corp
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
Application filed by Dysan Corp filed Critical Dysan Corp
Publication of ES526428A0 publication Critical patent/ES526428A0/es
Publication of ES8503158A1 publication Critical patent/ES8503158A1/es
Expired legal-status Critical Current

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
    • G11B20/00086—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
    • 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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • 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
    • G11B20/00659—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on the record carrier
    • 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
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • G11B20/00949—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches said intentional errors occurring due to bad sectors, which are either physically destroyed or which are declared defective in the defect management information
    • 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
    • G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B2020/10916—Seeking data on the record carrier for preparing an access to a specific address

Abstract

METODO PARA PERMITIR LA AUTENTICIDAD DE UN DISPOSITIVO DE ALMACENAMIENTO MAGNETICO.CONSISTE EN: A) DISPONER UN DISPOSITIVO DE ALMACENAMIENTO MAGNETICO DOTADO DE UNA SUPERFICIE DE GRABACION; Y B) REMOVER, RASPAR, DISOLVER, QUEMAR, ETC. UNA PORCION PREDETERMINADA DE LA SUPERFICIE DE GRABACION MIENTRAS SE DEJA SIN AFECTAR LA PROPIEDAD DE GRABACION DEL RESTO DE LA SUPERFICIE DE GRABACION. COMPRENDE UN DISCO DOTADO DE UNA BASE O SUSTRATO FLEXIBLE, SOBRE LA QUE SE SOSTIENE LA SUPERFICIE DE GRABACION, Y EN LA QUE LA PORCION PREDETERMINADA REMOVIDA COMPRENDE UN SEGMENTO CIRCULAR CORRESPONDIENTE A UNA PORCION DE UNA PISTA DE DATOS.
ES526428A 1982-11-22 1983-10-13 Un metodo para permitir la autenticacion de un dispositivo de almacenamiento magnetico Expired ES8503158A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44376682A 1982-11-22 1982-11-22

Publications (2)

Publication Number Publication Date
ES526428A0 ES526428A0 (es) 1985-02-01
ES8503158A1 true ES8503158A1 (es) 1985-02-01

Family

ID=23762110

Family Applications (3)

Application Number Title Priority Date Filing Date
ES526428A Expired ES8503158A1 (es) 1982-11-22 1983-10-13 Un metodo para permitir la autenticacion de un dispositivo de almacenamiento magnetico
ES535518A Expired ES8601538A1 (es) 1982-11-22 1984-08-30 Un metodo para detectar una copia no autorizada de un dispositivo de almacenamiento magnetico de informacion
ES535515A Granted ES535515A0 (es) 1982-11-22 1984-08-30 Un aparato para modificar la superficie de grabacion de un dispositivo de almacenamiento magnetico

Family Applications After (2)

Application Number Title Priority Date Filing Date
ES535518A Expired ES8601538A1 (es) 1982-11-22 1984-08-30 Un metodo para detectar una copia no autorizada de un dispositivo de almacenamiento magnetico de informacion
ES535515A Granted ES535515A0 (es) 1982-11-22 1984-08-30 Un aparato para modificar la superficie de grabacion de un dispositivo de almacenamiento magnetico

Country Status (6)

Country Link
EP (1) EP0110511B1 (es)
JP (1) JPS5996577A (es)
BR (1) BR8305978A (es)
CA (1) CA1220547A (es)
DE (1) DE3375854D1 (es)
ES (3) ES8503158A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL68989A (en) * 1983-06-15 1985-03-31 Amiran Grynberg Diskette protection
US4577289A (en) * 1983-12-30 1986-03-18 International Business Machines Corporation Hardware key-on-disk system for copy-protecting magnetic storage media
FR2567671B1 (fr) * 1984-07-11 1986-12-26 Logivision Procede de stockage sur un disque de plusieurs series d'informations destinees a differents utilisateurs et disque realise par ce procede
GB2162992B (en) * 1984-08-09 1988-10-12 Edward Peter Campbell Sington A method of recording a computer program
US4644493A (en) * 1984-09-14 1987-02-17 International Business Machines Corporation Implementing a shared higher level of privilege on personal computers for copy protection of software
GB2173327A (en) * 1985-03-15 1986-10-08 David Allan Phillips Copy protecting computer programs
DE3511712C2 (de) * 1985-03-29 1995-09-07 Polygram Gmbh Plattenförmiger Informationsträger und Verfahren zu seiner Herstellung
FR2640794A1 (fr) * 1988-12-20 1990-06-22 Dollar 2 Procede de controle d'acces a une information ou a une zone controlee, clef d'acces pour la mise en oeuvre du procede et procede de fabrication de cette clef
US5787068A (en) * 1996-11-07 1998-07-28 Imation Corp. Method and arrangement for preventing unauthorized duplication of optical discs using barriers
JP3783909B2 (ja) * 1999-05-20 2006-06-07 パイオニア株式会社 カッティング装置、情報記録媒体、情報記録装置及び情報記録方法並びに、カッティング方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529566A (en) * 1974-10-16 1978-10-25 Emi Ltd Magnetic recording
GB1525292A (en) * 1976-04-30 1978-09-20 Emi Ltd Identification of records
US4214280A (en) * 1978-05-30 1980-07-22 Xerox Corporation Method and apparatus for recording data without recording on defective areas of a data recording medium
DE3319343A1 (de) * 1982-11-08 1984-05-10 Vault Corp Verfahren und vorrichtung zur unmoeglichmachung nichtgenehmigter kopien von aufgezeichneten daten

Also Published As

Publication number Publication date
EP0110511A2 (en) 1984-06-13
DE3375854D1 (en) 1988-04-07
BR8305978A (pt) 1984-07-10
ES526428A0 (es) 1985-02-01
EP0110511A3 (en) 1985-08-28
ES8601540A1 (es) 1985-10-16
JPS5996577A (ja) 1984-06-04
ES535515A0 (es) 1985-10-16
ES535518A0 (es) 1985-10-16
ES8601538A1 (es) 1985-10-16
CA1220547A (en) 1987-04-14
EP0110511B1 (en) 1988-03-02

Similar Documents

Publication Publication Date Title
DE69131086D1 (de) Gerät zum Aufzeichnen und Wiedergeben von optischen Platten
BR7907413A (pt) Aparelho para e processo de girar um disco de armazenamento de informacao em relacao a um transdutor e aparelho para registrar informacao em um disco de armazenamento de informacao
ES8307405A1 (es) Aparato para accionar un disco flexible con el fin de registrar yno reproducir informacion.
DE69132212D1 (de) Vorrichtung und Verfahren zur Wiedergabe von Information
MY123844A (en) Information recording method, information recording/ reproducing apparatus, and information recording medium
ES8601540A1 (es) Un aparato para modificar la superficie de grabacion de un dispositivo de almacenamiento magnetico
DE69219400T2 (de) Plattengerät
HU903204D0 (en) Process and device for recording data, measuring procedure and measuring device utilizable in the recording process and device and information carrier
EP0149755A3 (en) Optical information recording and reproducing apparatus
EP0255188A3 (en) Method of recording, reproducing and erasing information on an optical disk
GB9113274D0 (en) Magnetic disc recording/reproducing apparatus
DK221485A (da) Apparat til gengivelse af navnlig billedinformation, der er optegnetpaa en magnetplade eller -skive
EP1345214A4 (en) OPTICAL DISK, RECORDING APPARATUS AND METHOD FOR OPTICAL DISC, AND ASSOCIATED READING METHOD
EP0984438A4 (en) RECORDING APPARATUS
ID26869A (id) Metoda penentuan daya hapus dan daya tulis yang optimal, dan aparatus perekam dengan peranti untuk metode tersebut
ATE112880T1 (de) Photomagnetisches aufzeichnungsverfahren.
JPS6479953A (en) Recording system for guide groove in optical disk
EP0396774A4 (en) Method and apparatus for controlling recording medium and recording medium produced under the control thereof
EP0285452A3 (en) Magnetic disk apparatus using both servo-surface servo and data-surface servo
EP0330507A3 (en) Magneto-optic recording and regenerating process, device using same and magneto-optic disk
SE7710240L (sv) Datalagringsenhet
JPS6339138A (ja) レーザーパワー制御方法
JPH02101674A (ja) 情報記録再生装置
MY105701A (en) Interactive optical disk.
JPH03157802A (ja) 磁気記録方式