RADIO DATA SYSTEM (RDS) DATA PROCESSING METHODS AND APPARATUS

• US 20090131002A1
• 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 8,503,957 B2
• Time in Patent Office: Days
• US Class Current: 455/186.100
• 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
• CPC Class Codes: H04H 60/74 using programme related information, e.g. title, composer or interpreter

Abstract

A host system for processing radio data system (RDS) data includes a host processor. The host system further includes a data processor configured to receive the RDS data, configured to filter the RDS data to allow the host processor to receive a selected set of the RDS data, and configured to reduce the number of interrupts to the host processor. A method is also provided for processing RDS data within a host system.

Claims

1. A host system for processing radio data system (RDS) data, comprising:

a host processor; and

a data processor configured to receive the RDS data, configured to filter the RDS data to allow the host processor to receive a selected set of the RDS data, and configured to reduce the number of interrupts to the host processor.

2. The host system of claim 1, wherein the RDS data comprises plural RDS groups, each of the plural RDS groups comprises plural blocks, and each of the plural blocks comprises an information word and a block status byte, the block status byte being configured to indicate a block identification and whether there are uncorrectable errors in a corresponding one of the plural blocks.

3. The host system of claim 1, wherein the data processor is configured to filter the RDS data based on one or more parameters configurable by the host processor so that depending on the one or more parameters, the selected set of the RDS data is a subset of the RDS data, none of the RDS data, or the entire RDS data.

4. The host system of claim 1, wherein the data processor is configured to reduce the number of interrupts to the host processor based on one or more parameters configurable by the host processor so that depending on the one or more parameters, the number of interrupts are reduced or not reduced.

5. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises an RDS data filter configured to filter out an RDS group having an uncorrectable error or an RDS group having a Block-E group type.

6. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises an RDS program identification (PI) match filter configured to determine whether an RDS group has a program identification which matches a given pattern, so as to assert an interrupt to the host processor when such a determination is positive.

7. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises an RDS Block-B filter configured to determine whether an RDS group has a block 2 entry which matches a given Block-B parameter, so as to assert an interrupt to the host processor when such a determination is positive.

8. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises an RDS group filter configured to filter out an RDS group having a group type which is not within a given one or more group types.

9. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises an RDS change filter configured to filter out an RDS group having RDS group data which has not changed.

10. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor is configured to determine whether an RDS group has a group type 0 and whether there is a change in program service (PS) information for the RDS group, so as to assert an interrupt to the host processor when such a determination is positive.

11. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor is configured to determine whether an RDS group has a group type 0 and whether there is a change in alternative frequency (AF) list information, so as to assert an interrupt to the host processor when such a determination is positive.

12. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor is configured to determine whether an RDS group has a group type 2 and whether there is a change in radio text (RT) information for the RDS group, so as to assert an interrupt to the host processor when such a determination is positive.

13. The host system of claim 1, wherein the RDS data comprises plural RDS groups, and the data processor comprises a memory buffer configured to store plural RDS groups before interrupting the host processor, so as to reduce the number of interrupts for new RDS data.

14. The host system of claim 1, further comprising:

at least one interrupt control register, each of the at least one interrupt control register comprising at least a bit; and

at least one interrupt status register, each of the at least one interrupt status register configured to correspond to a respective interrupt control register and comprising at least a bit,

wherein the bit for each of the at least one interrupt control register is configured to determine whether the host processor should receive an interrupt if the bit in a corresponding one of the at least one interrupt status register is set.

15. A data processor for processing radio data system (RDS) data, comprising:

a filter module configured to receive the RDS data, configured to filter the RDS data to allow a host processor to receive a selected set of the RDS data, and configured to reduce the number of interrupts to the host processor.

16. The data processor of claim 15, wherein the filter module comprises one or more filters selectively configurable by the host processor.

17. The data processor of claim 15, wherein the RDS data comprises plural RDS groups, and the data processor further comprises one or more buffers configurable by the host processor and configured to store some or all of the plural RDS groups to reduce the number of interrupts to the host processor.

18. The data processor of claim 15, further comprising:

one or more group processing components selectively configurable by the host processor.

19. A host system for processing radio data system (RDS) data, comprising:

a host processor;

a data processor comprising;

means for receiving the RDS data;

means for filtering the RDS data to allow the host processor to receive a selected set of the RDS data; and

means for reducing the number of interrupts to the host processor.

20. The host system of claim 19, wherein the means for filtering comprises one or more filters selectively configurable by the host processor.

21. The host system of claim 19, wherein the means for filtering is configured to filter the RDS data based on one or more parameters configurable by the host processor so that depending on the one or more parameters, the selected set of the RDS data is a subset of the RDS data, none of the RDS data, or the entire RDS data.

22. The host system of claim 19, wherein the means for reducing is configured to reduce the number of interrupts to the host processor based on one or more parameters configurable by the host processor so that depending on the one or more parameters, the number of interrupts are reduced or not reduced.

23. A method of processing radio data system (RDS) data utilizing a data processor, the method comprising:

receiving, by the data processor, the RDS data;

filtering, by the data processor, the RDS data to allow a host processor to receive a selected set of the RDS data; and

reducing, by the data processor, the number of interrupts to the host processor.

24. The method of claim 23, wherein the filtering comprises filtering the RDS data based on one or more parameters configurable by the host processor so that depending on the one or more parameters, the selected set of the RDS data is a subset of the RDS data,

wherein the RDS data comprises plural RDS groups, and the subset of the RDS data comprises selected RDS groups.

25. A machine-readable medium encoded with instructions for processing radio data system (RDS) data within a data processor, the instructions comprising code for:

receiving, by the data processor, the RDS data;

filtering, by the data processor, the RDS data to allow a host processor to receive a selected set of the RDS data; and

reducing, by the data processor, the number of interrupts to the host processor.