Method and system for optimized architecture for bluetooth streaming audio applications

• US 8,989,661 B2
• Filed: 08/30/2005
• Issued: 03/24/2015
• Est. Priority Date: 08/30/2005
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Hillyard, Jason, Hulvey, Robert, Walley, John, Zhodzishsky, Victor
• Primary Examiner(s): Rego, Dominic E
• Application Number:
  US11/215,420
• Publication Number:
  US 20070049196A1
• Time in Patent Office: 3,493 Days
• Field of Search: 455/41.2, 455/556.1, 455/556.2, 455/90.1, 455/95, 455/39, 455/66.1, 455/41.3, 455/67.11, 455/503, 455/515, 455/574, 455/127.5, 455/343.1, 455/343.5
• US Class Current: 455/41.2
• CPC Class Codes: G10L 19/00 Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis in musical instruments G10H
• CPC Class Codes: G10L 19/0208 Subband vocoders
• CPC Class Codes: G10L 19/03 Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04N 21/233 Processing of audio elementary streams monitoring, identification or recognition of audio in broadcast systems H04H60/58
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Methods and systems for processing data are disclosed herein and may include compressing audio information on-chip within a Bluetooth® transceiver chip utilizing an audio codec implemented within the Bluetooth® transceiver chip. The audio codec may be a low complexity sub-band codec (SBC). An audio stream with the audio information may be generated outside the Bluetooth® transceiver chip. The audio stream may be generated via an audio/video distribution transport protocol (AVDTP) external to the Bluetooth® transceiver chip. A data channel may be established by the Bluetooth® transceiver chip between a Bluetooth® enabled device and a peer Bluetooth® device, for communicating the established audio stream to the Bluetooth® transceiver chip for compression. The data channel may be established utilizing a logical link control and adaptation protocol (L2CAP) and/or an advanced audio distribution profile (A2DP).

Claims

1. A method for processing data, the method comprising:

in a Bluetooth transceiver chip comprising at least one on-chip processor, wherein said at least one on-chip processor performs the function of;

compressing audio information received by said Bluetooth transceiver chip, wherein said compressing utilizes an on-chip audio codec implemented within said at least one on-chip processor; and

generating outside said Bluetooth transceiver chip an audio stream comprising said audio information, wherein said audio stream is generated via an audio/video distribution transport protocol (AVDTP) external to said Bluetooth transceiver chip.

2. The method according to claim 1, wherein said audio codec comprises a low complexity sub-band codec (SBC).

3. The method according to claim 1, comprising establishing a data channel by said Bluetooth transceiver chip between a Bluetooth enabled host device and a peer Bluetooth device, for communicating said established audio stream to said Bluetooth transceiver chip for compression.

4. The method according to claim 3, comprising establishing said data channel utilizing one or both of a logical link control and adaptation protocol (L2CAP) and/or an advanced audio distribution profile (A2DP).

5. The method according to claim 1, comprising determining within said Bluetooth transceiver chip, a frame size of at least one audio frame comprising said compressed audio information.

6. The method according to claim 5, comprising formatting within said Bluetooth transceiver chip said at least one audio frame, based on said determined frame size.

7. The method according to claim 6, wherein said formatting comprises one or both of fragmenting said at least one audio frame and/or combining a plurality of said at least one audio frames.

8. The method according to claim 6, comprising formatting said at least one audio frame via an audio/video distribution transport protocol (AVDTP) implemented within said Bluetooth transceiver chip.

9. The method according to claim 1, comprising acquiring from outside said Bluetooth transceiver chip, said audio information via a pulse code modulation (PCM) wired connection.

10. A system for processing data, the system comprising:

at least one processor within a Bluetooth transceiver chip, said at least one processor enables compressing of audio information received by said Bluetooth transceiver chip, wherein said compressing utilizes an on-chip audio codec implemented within said at least one on-chip processor,

wherein said at least one processor enables receiving an audio stream comprising said audio information, via a protocol stack that is external to said Bluetooth transceiver chip, wherein said received audio stream is generated via an audio/video distribution transport protocol (AVDTP) within said protocol stack that is external to said Bluetooth transceiver chip.

11. The system according to claim 10, wherein said audio codec comprises a low complexity sub-band codec (SBC).

12. The system according to claim 10 wherein said at least one processor enables establishing a data channel a Bluetooth enabled host device and a peer Bluetooth device, for communicating said established audio stream to said Bluetooth transceiver chip for compression.

13. The system according to claim 12, wherein said data channel is established utilizing one or both of a logical link control and adaptation protocol (L2CAP) and/or an advanced audio distribution profile (A2DP) within said protocol stack that is external to said Bluetooth transceiver chip.

14. The system according to claim 10, wherein said at least one processor enables determining on-chip, of a frame size of at least one audio frame comprising said compressed audio information.

15. The system according to claim 10, wherein said at least one processor enables formatting on-chip, of at least one audio frame comprising said compressed audio information based on a determined frame size.

16. The system according to claim 15, wherein said at least one processor enables formatting said at least one audio frame on-chip by one or both of fragmenting said at least one audio frame and/or combining a plurality of said at least one audio frames.

17. The system according to claim 15, wherein said at least one processor enables formatting on-chip, of said at least one audio frame via an audio/video distribution transport protocol (AVDTP).

18. The system according to claim 10, wherein said at least one processor enables acquiring on-chip, of said audio information via a pulse code modulation (PCM) wired connection.

19. A non-transitory computer-readable medium encoded with computer executable instructions for processing data to perform steps comprising:

in a Bluetooth transceiver chip comprising at least one on-chip processor, wherein said at least one on-chip processor performs the function of;

compressing audio information received by said Bluetooth transceiver chip, wherein said compressing utilizes an on-chip audio codec implemented within said at least one on-chip processor; and

generating outside of said Bluetooth transceiver chip, an audio stream comprising said audio information, wherein said audio stream is generated via an audio/video distribution transport protocol (AVDTP) external to said Bluetooth transceiver chip.

20. The non-transitory computer-readable medium according to claim 19, wherein said audio codec comprises a low complexity sub-band codec (SBC).

21. The non-transitory computer-readable medium according to claim 19, comprising code for establishing a data channel via said Bluetooth transceiver chip between a Bluetooth enabled host device and a peer Bluetooth device, for communicating said established audio stream to said Bluetooth transceiver chip for compression.

22. The non-transitory computer-readable medium according to claim 21, comprising code for establishing said data channel utilizing one or both of a logical link control and adaptation protocol (L2CAP) and/or an advanced audio distribution profile (A2DP).

23. The non-transitory computer-readable medium according to claim 19, comprising code for determining within said Bluetooth transceiver chip, a frame size of at least one audio frame comprising said compressed audio information.

24. The non-transitory computer-readable medium according to claim 23, comprising:

code for formatting within said Bluetooth transceiver chip said at least one audio frame, based on said determined frame size, wherein said formatting comprises one or both of fragmenting said at least one audio frame and/or combining a plurality of said at least one audio frames; and

code for formatting said at least one audio frame via an audio/video distribution transport protocol (AVDTP) implemented within said Bluetooth transceiver chip.