System, method, and apparatus for audio decoding accelerator

• US 20060224390A1
• Filed: 04/01/2005
• Published: 10/05/2006
• Est. Priority Date: 04/01/2005
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Bidnur, Ravindra, Pai, Ramadas Lakshmikanth, Shastry, Jagannath Sathyanarayana
• Application Number:
  US11/096,653
• Publication Number:
  US 20060224390A1
• Time in Patent Office: Days
• US Class Current: 704/268
• CPC Class Codes: G10L 19/0212 using orthogonal transformation
• CPC Class Codes: G10L 19/16 Vocoder architecture

Abstract

Presented herein are system(s), method(s), and apparatus for an audio decoding accelerator. In one embodiment, there is presented an audio decoder for decoding audio data. The audio decoder comprises a controller and a computation engine. The controller receives the audio data, and provides parameters, where the parameters are associated with the audio data. The computation engine calculates at least one of a plurality of predetermined functions for said parameters.

Claims

1. An audio decoder for decoding audio data, said audio decoder comprising:

a controller for receiving the audio data, and providing parameters, said parameters being associated with the audio data; and

a computation engine for calculating at least one of a plurality of predetermined functions for said parameters.

2. The audio decoder of claim 1, further comprising:

a memory for storing the parameters and results of the said at least one of a plurality of predetermined functions for said parameters.

3. The audio decoder of claim 2, wherein the controller provides pointers to the computation engine, said pointers indicating addresses in the memory that store the parameters.

4. The audio decoder of claim 1, wherein the plurality of predetermined functions comprises an inverse modified discrete cosine transformation.

5. The audio decoder of claim 1, wherein the plurality of predetermined functions comprises a inverse fast Fourier transformation.

6. The audio decoder of claim 1, wherein the controller provides one or more inputs for the computation engine, said one or more inputs selecting the at least one predetermined function from the plurality of functions.

7. The audio decoder of claim 6, wherein the computation engine further comprises:

one or more multiplexers, each of said one or more multiplexers receiving a particular one of the inputs.

8. A method for decoding audio data, said method comprising:

receiving the audio data;

writing parameters associated with the audio data to a memory; and

calculating at least one of a plurality of predetermined functions for said parameters.

9. The method of claim 8, further comprising:

providing pointers indicating addresses in the memory that store the parameters.

10. The method of claim 8, wherein the plurality of predetermined functions comprises an inverse modified discrete cosine transformation.

11. The method of claim 8, wherein the plurality of predetermined functions comprises an inverse fast Fourier transformation.

12. The method of claim 8, further comprising:

providing one or more inputs, said one or more inputs selecting the at least one predetermined function from the plurality of functions.

13. An audio encoder for decoding audio data, said audio encoder comprising:

a controller adapted to receive the audio data and provide parameters, said parameters being associated with the audio data; and

a computation engine connected to the controller, said computation engine adapted to calculate at least one of a plurality of predetermined functions for said parameters.

14. The audio encoder of claim 13, further comprising:

a memory connected to the controller; and

wherein the controller is adapted to write the parameters to the memory.

15. The audio encoder of claim 14, wherein computation engine is adapted to write results of the said at least one of a plurality of predetermined functions for said parameters.

16. The audio decoder of claim 14, wherein the controller is adapted to provide pointers to the computation engine, said pointers indicating addresses in the memory that store the parameters.

17. The audio decoder of claim 13, wherein the plurality of predetermined functions comprises a modified discrete cosine transformation.

18. The audio decoder of claim 13, wherein the plurality of predetermined functions comprises a fast Fourier transformation.

19. The audio decoder of claim 13, wherein the controller is adapted to provide one or more inputs for the computation engine, said one or more inputs selecting the at least one predetermined function from the plurality of functions.

20. The audio decoder of claim 19, wherein the computation engine further comprises:

one or more multiplexers, each of said one or more multiplexers adapted to receive a particular one of the inputs.21. The audio decoder of claim 13, wherein the controller operates on audio data in a first format, while the controller operates on audio data in a second format.