WO2005083701A1 - Auslesen eines datenträgers durch ein navigationssystem - Google Patents
Auslesen eines datenträgers durch ein navigationssystem Download PDFInfo
- Publication number
- WO2005083701A1 WO2005083701A1 PCT/EP2005/050054 EP2005050054W WO2005083701A1 WO 2005083701 A1 WO2005083701 A1 WO 2005083701A1 EP 2005050054 W EP2005050054 W EP 2005050054W WO 2005083701 A1 WO2005083701 A1 WO 2005083701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- pregap
- navigation
- drive
- navigation system
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
-
- 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
- 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
- G11B20/00615—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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
- G11B20/0063—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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
- G11B20/00637—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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode said management data being 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
- G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from 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
- G11B20/10—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
- 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
Definitions
- the invention relates to a navigation system with a drive for reading navigation data that are stored on a data carrier. In addition to the navigation data, there is a pregap on the data carrier.
- the invention also relates to a method for operating a navigation system with a drive for reading out navigation data from a data carrier which, in addition to the navigation data, has a pregap logically preceded by it.
- the object of the invention is to provide a navigation system and a method for operating a navigation system with which effective copy protection for data carriers with navigation data can be provided.
- this task is solved by a navigation system with the features of claim 1 and a method with the features of claim 5. Due to the fact that identification information ions are stored in the pregap of the data carrier and can be read from the drive, it is possible that the use of the navigation data on the data carrier depends on the presence of such identification data or on the Presence of correct identification data can be linked. Since the marketable copiers are not able to recognize a pregap and copy one, a corresponding design of the content of the pregap can limit the use or grant a right of use. Only when the identification data, for example a copyright
- the pregap is present at all, the remaining navigation data can be read out. Furthermore, it is provided that authorization for use is only given when very specific identification data are available, that is to say that the remaining navigation data can only be read out if the identification data are compatible with verification data stored in the navigation system.
- Serial numbers of the corresponding navigation devices can be restricted. This would make copying less attractive, since it cannot be guaranteed that the copied data carriers actually work in the existing device.
- CD-ROM are trained because they are widely used, robust and easy to use.
- alternative media such as. B. DVD can be used if the drive can recognize the data formats.
- the pregap is provided with the physical address 0: 00.0 and at the end of the pregap, which is, for example, at the physical address 0: 02.0, the logical addressing begins with the address 0 in order to allow access by conventional CD burners or other copiers avoid.
- the start of the pregap would theoretically have the logical block address -150.
- Block addressing instead of physical addressing is understood as a pregap.
- the usage authorization data, identification data or a copyright are stored in this pregap, which has a length of two seconds, for example. The remaining data are only released when this data is available.
- An example of the invention is explained in more detail below with reference to the attached figure.
- the single figure shows a schematic representation of the data structure on a data carrier.
- a data track 1 which consists of a pregap 2 and a
- User data track 3 exists.
- the physical address of both the pregap 2 and the useful data track 3 is plotted below the data track 1.
- the physical address consists of all zeros, namely 0 min runtime and 0 sec runtime for frame 0.
- the physical address 00 is specified as the frame.
- the pregap 2 is followed by the useful data track 3 with navigation data, which takes up the remaining amount of memory; in the case of a conventional CD, this is 74 minutes, which can be seen at the lower right end of the figure.
- the last logical block address "665850" can be seen at the upper right end of the figure.
- the Pregap 2 is provided with the physical address 0: 00.0, and at the end of the Pregap, which is at the physical address 0: 02.0, the logical addressing, which is plotted above, begins with the address 0 for access Avoid using conventional CD burners or other copiers on the Pregap.
- the start of the pregap would theoretically be logical
- Block address "-150" Only after the pregap does the useful data track 3 begin with the corresponding logical block addresses "0" to "665850”.
- the read drive is able to read the Pregap 2 of a CD, although the Pregap 2 cannot be addressed in ISO 9660 file systems due to the different type of addressing (logical block addressing instead of physical addressing).
- the program implemented here supplements the finished navigation CD with a two-second data block 2 in which, for example, a copyright is filed. It is now possible to press CDs with a pre-defined Pregap 2, on which the existence of the copyright can be checked in the navigation system. If this is not available, the CD will be rejected. Copying this CD with standard CD burners is not possible.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05707749A EP1733393A1 (de) | 2004-02-26 | 2005-01-07 | Auslesen eines datenträgers durch ein navigationssystem |
US10/590,228 US7756628B2 (en) | 2004-02-26 | 2005-01-07 | Navigation system including a drive for reading out navigation data and a method for operating a navigation system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004009273A DE102004009273A1 (de) | 2004-02-26 | 2004-02-26 | Navigationssystem mit einem Laufwerk zum Auslesen von Navigationsdaten sowie Verfahren zum Betreiben eines Navigationssystems |
DE102004009273.7 | 2004-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005083701A1 true WO2005083701A1 (de) | 2005-09-09 |
Family
ID=34853691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/050054 WO2005083701A1 (de) | 2004-02-26 | 2005-01-07 | Auslesen eines datenträgers durch ein navigationssystem |
Country Status (4)
Country | Link |
---|---|
US (1) | US7756628B2 (de) |
EP (1) | EP1733393A1 (de) |
DE (1) | DE102004009273A1 (de) |
WO (1) | WO2005083701A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5467327A (en) * | 1993-12-22 | 1995-11-14 | Jamail; Randall | Method of masking data on a storage medium |
WO1997044736A1 (en) * | 1996-05-23 | 1997-11-27 | Apple Computer, Inc. | Method and apparatus for two-level copy protection |
EP1227482A2 (de) * | 1997-05-30 | 2002-07-31 | Macrovision Europe Limited | Kopierschutzverfahren für einen Aufzeichnungsträger mit einem Muster von logischen Fehlern |
US20030084313A1 (en) * | 2001-10-23 | 2003-05-01 | Toyota Jidosha Kabushiki Kaisha | Map data processing method, map data processing device, storage medium, and on-board map data processing device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5995457A (en) * | 1993-12-22 | 1999-11-30 | Jamail; Randall H. | Method of masking data on digital video disks (DVD) |
CA2232818C (en) * | 1996-07-24 | 2006-06-06 | Philips Electronics N.V. | Improvements in and relating to optically readable discs and disc recording apparatus |
JPH10106146A (ja) * | 1996-09-25 | 1998-04-24 | Victor Co Of Japan Ltd | ディスクの記録再生方法及び再生装置 |
US6081897A (en) * | 1997-01-13 | 2000-06-27 | Recording Industry Of America | Apparatus for monitoring and preventing unauthorized copying of digital data |
EP0933776A3 (de) * | 1998-01-30 | 2006-05-17 | Victor Company of Japan, Ltd. | Signalkodierungsgerät, Audiodatenübertragungsverfahren, Audiodatenaufzeichnungsverfahren, Audiodatendekodierungsverfahren und Audioplatte |
JP2000149415A (ja) * | 1998-11-02 | 2000-05-30 | Matsushita Electric Ind Co Ltd | 光ディスク、光ディスクの再生装置及び複製装置並びに光ディスクの違法使用防止方法 |
JP2005135513A (ja) * | 2003-10-30 | 2005-05-26 | Fujitsu Ltd | 情報記録媒体及び情報記録再生装置 |
-
2004
- 2004-02-26 DE DE102004009273A patent/DE102004009273A1/de not_active Withdrawn
-
2005
- 2005-01-07 EP EP05707749A patent/EP1733393A1/de not_active Ceased
- 2005-01-07 WO PCT/EP2005/050054 patent/WO2005083701A1/de active Application Filing
- 2005-01-07 US US10/590,228 patent/US7756628B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5467327A (en) * | 1993-12-22 | 1995-11-14 | Jamail; Randall | Method of masking data on a storage medium |
WO1997044736A1 (en) * | 1996-05-23 | 1997-11-27 | Apple Computer, Inc. | Method and apparatus for two-level copy protection |
EP1227482A2 (de) * | 1997-05-30 | 2002-07-31 | Macrovision Europe Limited | Kopierschutzverfahren für einen Aufzeichnungsträger mit einem Muster von logischen Fehlern |
US20030084313A1 (en) * | 2001-10-23 | 2003-05-01 | Toyota Jidosha Kabushiki Kaisha | Map data processing method, map data processing device, storage medium, and on-board map data processing device |
Non-Patent Citations (2)
Title |
---|
"Überblick: Alle Kopierschutzmethoden", CHIP ONLINE, 11 February 2002 (2002-02-11), XP002329285, Retrieved from the Internet <URL:http://www.chip.de> [retrieved on 20050524] * |
See also references of EP1733393A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20070179707A1 (en) | 2007-08-02 |
DE102004009273A1 (de) | 2005-09-15 |
US7756628B2 (en) | 2010-07-13 |
EP1733393A1 (de) | 2006-12-20 |
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