METHODS AND APPARATUS FOR DOWNLOADING ONE OR MORE RADIO DATA SYSTEM (RDS) GROUP TYPE PROCESSING ROUTINES FOR RDS DATA

• US 20090131122A1
• Filed: 11/21/2007
• Published: 05/21/2009
• Est. Priority Date: 11/21/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Masamoto, James Tadashi
• Granted Patent: US 8,666,304 B2
• Time in Patent Office: Days
• US Class Current: 455/574
• CPC Class Codes: H04H 2201/13 radio data system/radio broadcast data system [RDS/RBDS]
• CPC Class Codes: H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving
• CPC Class Codes: H04H 60/06 Arrangements for scheduling broadcast services or broadcast-related services

Abstract

A host system for downloading one or more Radio Data System (RDS) group type processing routines for RDS data includes a data processor and a host processor. The host processor is configured to download one or more RDS group type processing routines for the data processor, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type. The host processor is further configured to assign a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type. A method is also provided for downloading one or more RDS group type processing routines for RDS data.

Claims

1. A host system for downloading one or more Radio Data System (RDS) group type processing routines for RDS data, comprising:

a data processor; and

a host processor configured to download one or more RDS group type processing routines for the data processor, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type, the host processor further configured to assign a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.

2. The host system of claim 1, wherein the reference is a function pointer within an array of function pointers which respectively point to the one or more RDS group type processing routines.

3. The host system of claim 1, wherein the data processor comprises a program random access memory (RAM) and a data RAM, wherein the program RAM is configured to store the one or more RDS group type processing routines, and the data RAM is configured to store the reference.

4. The host system of claim 1, wherein the one or more RDS group type processing routines is selectively configurable by the host processor, and each reference corresponding to its respective one of the one or more RDS group type processing routines is selectively configurable by the host processor.

5. The host system of claim 1, wherein the data processor comprises a program read only memory (ROM), and wherein references corresponding to RDS group types 0 and 2 respectively point to default RDS group type processing routines for RDS group type 0 and RDS group type 2 implemented in the program ROM.

6. The host system of claim 1, wherein the host processor is configured to dynamically download the one or more RDS group type processing routines.

7. The host system of claim 1, wherein if one of the one or more RDS group type processing routines is for a first RDS group type, and if the data processor comprises an existing RDS group type processing routine for the first RDS group type, then the host processor is configured to re-assign a reference for the first RDS group type from the existing RDS group type processing routine to the one of the one or more RDS group type processing routines when the one of the one or more RDS group type processing routines is downloaded by the host processor.

8. The host system of claim 7, wherein the data processor is configured to store the one or more RDS group type processing routines, and wherein if the data processor receives RDS data having the first RDS group type, the data processor is configured to send the RDS data having the first RDS group type to the one of the one or more RDS group type processing routines residing in the data processor rather than to the existing RDS group type processing routine.

9. The host system of claim 1, wherein if an RDS group type processing routine is invoked by RDS data, the host processor is further configured to access the RDS data processed by the RDS group type processing routine via one or more control registers in the data processor.

10. The host system of claim 1, wherein if an RDS group type processing routine is invoked by RDS data, the host processor is further configured to be interrupted by the data processor via one or more interrupt registers in the data processor.

11. A host processor for downloading one or more Radio Data System (RDS) group type processing routines for RDS data, comprising:

a download module configured to download one or more RDS group type processing routines for a data processor of a host system, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type; and

an assignment module configured to assign a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.

12. The host processor of claim 11, wherein the reference is a function pointer within an array of function pointers which respectively point to the one or more RDS group type processing routines.

13. The host processor of claim 11, wherein the data processor comprises a program random access memory (RAM) and a data RAM, wherein the program RAM is configured to store the one or more RDS group type processing routines, and the data RAM is configured to store the reference.

14. The host processor of claim 11, wherein the one or more RDS group type processing routines is selectively configurable by the host processor, and each reference corresponding to its respective one of the one or more RDS group type processing routines is selectively configurable by the host processor.

15. The host processor of claim 11, wherein the data processor comprises a program read only memory (ROM), and wherein references corresponding to RDS group types 0 and 2 respectively point to default RDS group type processing routines for RDS group type 0 and RDS group type 2 implemented in the program ROM.

16. The host processor of claim 11, wherein the host processor is configured to dynamically download the one or more RDS group type processing routines.

17. A host system for downloading one or more Radio Data System (RDS) group type processing routines for RDS data, comprising:

a data processor; and

a host processor, comprising;

means for downloading one or more RDS group type processing routines for the data processor of the host system, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type; and

means for assigning a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.

18. The host system of claim 17, wherein the reference is a function pointer within an array of function pointers which respectively point to the one or more RDS group type processing routines.

19. The host system of claim 17, wherein the data processor comprises a program random access memory (RAM) and a data RAM, wherein the program RAM is configured to store the one or more RDS group type processing routines, and the data RAM is configured to store the reference.

20. The host system of claim 17, wherein the one or more RDS group type processing routines is selectively configurable by the host processor, and each reference corresponding to its respective one of the one or more RDS group type processing routines is selectively configurable by the host processor.

21. The host system of claim 17, wherein the data processor comprises a program read only memory (ROM), and wherein references corresponding to RDS group types 0 and 2 respectively point to default RDS group type processing routines for RDS group type 0 and RDS group type 2 implemented in the program ROM.

22. The host system of claim 17, wherein the host processor is configured to dynamically download the one or more RDS group type processing routines.

23. A method of downloading one or more Radio Data System (RDS) group type processing routines for RDS data utilizing a host processor, the method comprising:

downloading, by the host processor, one or more RDS group type processing routines for a data processor, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type;

assigning, by the host processor, a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.

24. The host system of claim 23, wherein the reference is a function pointer within an array of function pointers which respectively point to the one or more RDS group type processing routines.

25. A machine-readable medium encoded with instructions for downloading one or more Radio Data System (RDS) group type processing routines for RDS data utilizing a host processor, the instructions comprising code for:

downloading, by the host processor, one or more RDS group type processing routines for a data processor, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type; and

assigning, by the host processor, a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.