System for providing data in a mobile device

• US 20050075783A1
• Filed: 07/23/2004
• Published: 04/07/2005
• Est. Priority Date: 07/24/2003
• Status: Active Grant

• Current Assignee: Harman Becker Automotive Systems GmbH (Samsung Group)
• Original Assignee: Harman Becker Automotive Systems GmbH (Samsung Group)
• Inventors: Wolf, Stefan, Lappe, Dirk, Hovestadt, Guido
• Granted Patent: US 7,773,952 B2
• Time in Patent Office: Days
• US Class Current: 701/117
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents

Abstract

A system is presented for utilizing data in a mobile device in real-time and without the need for additional hardware. The system allows real-time processing of highly-compressed data that would otherwise require processing power in excess of that available from the system, or would otherwise not be possible without additional hardware. The system generally includes a processing device that receives the data in a highly compressed format, and includes a preprocessor that pre-processes the data to at least partially decode the data into a second compressed format. The processing device also includes a decompressor that fully decompresses the preprocessed data as needed by the system. The processing device may also include one or more memories for storing the preprocessed data until it is needed by the system.

Claims

1. A method for providing data in a mobile device comprising the steps of:

inputting the data in a first format having a first degree of compression to the mobile device;

processing the data in the first format into a second format having a different degree of compression than the first format before the data is used by the device; and

decompressing the data in the second format when the data is needed by the mobile device.

2. The method of claim 1, further comprising storing the data in the second format.

3. The method of claim 1, where the mobile device includes a navigation device.

4. The method of claim 3, where the different degree of compression of the second format depends on at least one of a group comprising vehicle speed, data quality, computing capacity of the navigation device, or storage capacity of the navigation device.

5. The method of claim 3, where the data in the second format is decompressed with a processing speed sufficient for the navigation device to communicate navigation instructions in real-time.

6. The method of claim 5, where the data in the second format is decompressed with a processing speed sufficient for the navigation device to communicate navigation instructions in real-time according to a movement of the mobile device.

7. The method of claim 3, where providing data in a first format includes facilitating communication between the navigation device and a server via an online radio communication channel.

8. The method of claim 1, where providing data in the first format includes receiving the data in the first format from an external storage device, and processing the data into the second format includes processing the data into a format with a degree of compression lower than that of the first format.

9. A system for providing data, comprising:

a server configured to store and transmit the data in a first format having a first degree of compression; and

a mobile device in communication with the server, comprising;

a preprocessor configured to process the data in the first format into a second format having a different degree of compression than the first format;

a storage device configured to storing the data in the second format; and

a decompressor configured to decompress the data in the second format to produce decompressed data when the decompressed data is needed by the mobile device.

10. The system of claim 9, where the server is further configured to provide the data in the first format at a selected data rate from among a plurality of data rates.

11. The system of claim 10, where the selected data rate substantially matches a processing capability of the mobile device.

12. The system of claim 10, where the selected data rate is selected in accordance with a vehicle speed.

13. The system of claim 10, where the selected data rate is selected in accordance with a desired output quality for communicating the decompressed data in real-time.

14. A mobile device for providing data in a vehicle, comprising:

a preprocessor configured to receive data from an external data source in a first format having a first degree of compression, and processing the data in the first format into a second format having a different degree of compression than the first format; and

a decompressor configured to decompress the data in the second format to produce decompressed data when the data is needed by the mobile device.

15. The mobile device of claim 14, further comprising a storage device for storing the data in the second format.

16. The mobile device of claim 14, where the mobile device is implemented in a head unit mounted in the vehicle.

17. The mobile device of claim 14, where the mobile device includes a navigation device.

18. The mobile device of claim 17, where the storage device includes a navigation database for storing the data in the second format.

19. The mobile device of claim 17, further comprising an audio output device for communicating the decompressed data in real-time as audible navigation instructions.

20. The mobile device of claim 17, further comprising an audio output device for communicating the decompressed data according to a vehicle movement in real-time as audible navigation instructions.

21. The mobile device of claim 17, further comprising a display device for communicating the decompressed data in real-time as visual navigation instructions.

22. The mobile device of claim 17, further comprising a display device for communicating the decompressed data in real-time according to the vehicle'"'"'s movement as visual navigation instructions.

23. A mobile device for providing data in a vehicle, comprising:

a means for receiving data from an external data source in a first format having a high degree of compression, and processing the data in the first format into a second format having a lesser degree of compression than the first format; and

a means for decompressing the data in the second format when the data is needed by the mobile device.