Navigation system for accessing navigation data stored in an access-protected manner

• US 20060184531A1
• Filed: 10/27/2005
• Published: 08/17/2006
• Est. Priority Date: 10/27/2004
• Status: Active Grant

• Current Assignee: Harman Becker Automotive Systems GmbH (Samsung Electronics Co. Ltd.)
• Original Assignee: Harman Becker Automotive Systems GmbH (Samsung Electronics Co. Ltd.)
• Inventors: Russlies, Lars
• Granted Patent: US 9,970,773 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself

Abstract

A navigation system stores navigation data in an access-protected manner. The navigation system includes navigation units that utilize the navigation data retained in a memory. The system includes a module for authenticating the access code. The system may include a module for generating an access protection code for storing the navigation data in memory. The access code and the access protection code may be used in a complementary scheme to secure the navigation data set.

Claims

1. A navigation system comprising:

a non-volatile writable memory configured to store navigation data;

means for checking an access code that allows access to navigation data stored in the memory; and

means for creating an access protection code for the navigation data.

2. The navigation system of claim 1 where the memory comprises a portable disk.

3. The navigation system of claim 1 where the means for checking an access code is configured to decrypt the digital navigation data.

4. The navigation system of claim 3 where the access protection code is based on an identification code unique to the navigation system.

5. The navigation system of claim 4 where the identification code of the navigation system is identical to the identification code of the navigation data.

6. The navigation system claim 5 further comprising means for encrypting the navigation data using the access protection code.

7. The navigation system of claim 6 further comprising a user interface configured to receive the access code.

8. The navigation system claim 7 further comprising a storage unit configured to read an access code stored on a removable disk.

9. The navigation system of claim 8 where the removable disk comprises an optical disk.

10. The navigation system of claim 8 where the access code comprises a copy protected access code.

11. The navigation system of claim 10 where the copy protected access code comprises at least one read fault error based on at least one defect sector of the removable disk.

12. The navigation system of claim 7 where the user interface is configured to check the access code of the navigation system.

13. The navigation system of claim 12 where the user interface is further configured to check the access code after a predetermined time interval or after a predetermined number of times of accessing the navigation data.

14. A method for storing digital navigation data in a navigation system having a non-volatile writable memory comprising:

creating an access protection code for navigation data; and

writing the navigation data into a memory, where the access protection code is operable to encode or decode the navigation data.

15. The method of claim 14 where the memory comprises a hard disk.

16. The method of claim 15 where creating the access protection code further comprises creating the access protection code while writing the navigation data to the memory.

17. The method of claim 16 where creating the access protection code comprises creating an access protection code using an identification code of the navigation system.

18. The method of claim 17 where the identification code of the navigation system comprises a number that is one of a series of numbers used for identification.

19. The method of claim 18 further comprising encrypting the navigation data using the access protection code.

20. A method for accessing navigation data stored in a memory of a navigation system, where the navigation data is access protected, comprising:

providing an access code, and

validating the access code while the navigation system routes a path from a first point to a second point.

21. The method of claim 20 where providing an access code comprises creating an access code using an identification code of the navigation system or an identification code of the navigation data.

22. The method of claim 21 where providing an access code comprises reading the access code from a removable media interfaced with the navigation system.

23. The method of claim 22 where validating the access code comprises checking the access code periodically.

24. The method of claim 23 where checking the access code further comprises checking the access code after a predetermined number of times of accessing the navigation data.

25. A navigation system comprising:

a navigation unit;

a memory configured to store navigation data;

a removable storage unit to store a copy protected access code, where the copy protected access code further comprises at least one read fault error based on at least one defect sector of the removable disk;

logic for validating the copy protected access code to allow access to navigation data stored in the memory, where the logic for validating an access code is further configured to periodically check the copy protected access code after a predetermined number of times of accessing the navigation data; and

logic for creating an access protection code for the navigation data, where the access protection code further comprises an identification number unique to the navigation system or the navigation data.

26. The navigation system of claim 25 where the logic for validating the copy protected access code is further configured to check the access code after a predetermined time interval.