Navigation installation and method for extracting information transmitted in encrypted form

• US 20070027611A1
• Filed: 06/22/2006
• Published: 02/01/2007
• Est. Priority Date: 06/23/2005
• Status: Active Grant

• Current Assignee: BURY Spzoo
• Original Assignee: BURY Spzoo
• Inventors: Piekarz, Roman
• Granted Patent: US 7,496,448 B2
• Time in Patent Office: Days
• US Class Current: 701/117
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: H04H 20/55 for traffic information

Abstract

A navigation installation (1) having a broadcast radio receiver (6) for extracting information transmitted in encrypted form from broadcast radio signals, having a navigation unit (7) and having a data storage medium reading unit (8) is described. The navigation unit (7) is set up to read decryption data (ED) stored on a data storage medium (9) with the data storage medium reading unit (8) and to extract encrypted information using the decryption data (ED) which have been read.

Claims

1. A navigation device comprising:

a receiver for receiving information that is transmitted in encrypted form;

a reader for reading data from a storage medium;

a storage medium, which stores a decryption code, which allows decrypting at least a portion of received information that is in encrypted form and

wherein the navigation device is provided for reading out the decryption code from the storage medium and to encrypt received information from a broadcast radio signal by use of the decryption key.

2. The navigation device as claimed in claim 1, wherein the decryption data (ED) comprise a decryption algorithm.

3. The navigation device as claimed in claim 1, wherein the navigation device is set up to enable the use of added-value services on the basis of the decryption data (ED).

4. A method for extracting information transmitted in encrypted form from broadcast radio signals with a navigation device comprising:

a receiver for receiving information that is transmitted in encrypted form;

a reader for reading data from a storage medium;

a storage medium, which stores a decryption code, which allows decrypting at least a portion of received information that is in encrypted form and

wherein the navigation device is provided for reading out the decryption code from the storage medium and to encrypt received information from a broadcast radio signal by use of the decryption key, where

a) a data storage medium number which is allocated by the manufacturer of a data storage medium (9) and which is stored unalterably on the data storage medium (9) is read from the data storage medium (9),

b) an access code which is required for extracting the information is generated from the data storage medium number and from a license number, and

c) the information is extracted if the access code is admissible.

5. The method as claimed in claim 4, where the license number allocated for an original data storage medium is read from the data storage medium (9).

6. The method as claimed in claim 4, where a record stored on the data storage medium (9), comprising at least a license number and an access code, is read and the data storage medium number stored unalterably on the data storage medium (9) by the manufacturer of the data storage medium (9) is read, an access code is generated from the license number and the data storage medium number, and the generated access code is compared with the stored access code in order to enable extraction of the information.

7. The method as claimed in claim 4, where a serial code for the navigation device s read and the information is also extracted on the basis of the serial code.

8. (canceled)