System and method for controlling sound data

• US 20060047503A1
• Filed: 08/30/2004
• Published: 03/02/2006
• Est. Priority Date: 08/30/2004
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: LSI Corporation (Broadcom, Inc.)
• Inventors: Lin, David H.
• Granted Patent: US 7,610,200 B2
• Time in Patent Office: Days
• US Class Current: 704/200
• CPC Class Codes: G06F 3/16 Sound input; Sound output speech processing G10L

Abstract

A system and method for controlling access to parameter blocks of a sound processor. According to the method and system disclosed herein, the present invention includes a host, a sound processor coupled to the host, and at least two copies of a parameter block associated with the sound data. The sound processor can access a first copy of the at least two copies while the host is accessing a second copy of the at least two copies. As a result, parameter blocks are freely updated by the host processor and freely read by the sound processor without conflict and without performance loss.

Claims

1. A system for controlling sound data, the circuit comprising:

a host;

a sound processor coupled to the host; and

at least two copies of a parameter block associated with the sound data, wherein the sound processor can access a first copy of the at least two copies while the host is accessing a second copy of the at least two copies.

2. The system of claim 1 wherein the at least two copies of the parameter block are indexed by a single parameter block list.

3. The system of claim 1 wherein each copy of the at least two copies of the parameter block is indexed by a separate parameter block list.

4. The system of claim 1 wherein control bits, that control which copy of the at least two copies of the parameter block is active, are stored in the sound processor.

5. The system of claim 1 wherein control bits, that control which copy of the at least two copies of the parameter block is active, are stored in a direct memory access (DMA) engine.

6. A method for controlling sound data, the method comprising:

providing at least two copies of a parameter block associated with the sound data;

accessing a first copy of the at least two copies; and

accessing a second copy of the at least two copies while the first copy is being accessed.

7. The method of claim 6 wherein the providing step comprises indexing the at least two copies of the parameter block using a single parameter block list.

8. The method of claim 6 wherein the providing step comprises indexing the at least two copies of the parameter block using a separate parameter block list for each of the at least two copies.

9. The method of claim 6 further comprising storing control bits, that control which copy of the at least two copies of the parameter block, is active in the sound processor.

10. The method of claim 6 further comprising storing control bits, that control which copy of the at least two copies of the parameter block, is active in a direct memory access (DMA) engine.

11. A computer readable medium containing program instructions for controlling sound data, the program instructions which when executed by a computer system cause the computer system to execute a method comprising:

providing at least two copies of a parameter block associated with the sound data;

accessing a first copy of the at least two copies; and

accessing a second copy of the at least two copies while the first copy is being accessed.

12. The computer readable medium of claim 11 wherein the providing step comprises program instructions for indexing the at least two copies of the parameter block using a single parameter block list.

13. The computer readable medium of claim 11 wherein the providing step comprises program instructions for indexing the at least two copies of the parameter block using a separate parameter block list for each of the at least two copies.

14. The computer readable medium of claim 11 further comprising program instructions for storing control bits, that control which copy of the at least two copies of the parameter block, is active in the sound processor.

15. The computer readable medium of claim 11 further comprising program instructions for storing control bits, that control which copy of the at least two copies of the parameter block, is active in a direct memory access (DMA) engine.