Dual streaming with exchange of FEC streams by audio sinks

Details Dual streaming with exchange of FEC streams by audio sinks Dual streaming with exchange of FEC streams by audio sinks

2008-03-24

2011-10-18

Nguyen, Dao (Department: 2818)

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Near field

C381S017000, C381S018000, C381S022000, C381S026000, C381S080000, C381S309000, C381S311000, C379S067100, C379S078000, C379S353000, C379S357010

Reexamination Certificate

active

08041051

ABSTRACT:
A system and method is described herein in which an audio source wirelessly transmits audio content to a first audio sink over one wireless link and to a second audio sink over another wireless link. The two audio sinks also exchange forward error correction (FEC) streams over a wireless link between the two audio sinks, wherein the FEC streams are generated by FEC encoding the audio content received from the audio source. The audio sinks advantageously use the exchanged FEC information to synchronize the playback of the audio content as well as to improve the robustness of the wireless links with the audio source in a manner that does not consume additional bandwidth on those links.

REFERENCES:
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patent: 2008/0226094 (2008-09-01), Rutschman
Rosenberg, et al., “An RTP Payload Format for Generic Forward Error Correction”, Internet Engineering Task Force (IETF) Request for Comments (RFC) 2733, (Dec. 1999), 27 pages.
Audio/Video Distribution Transport Protocol (AVDTP) Specification, Bluetooth Audio Video Working Group, Version 1.00, Bluetooth Special Interest Group, Inc., (May 22, 2003), 145 pages.

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