Telecommunications – Transmitter and receiver at separate stations – Short range rf communication
Reexamination Certificate
2011-05-24
2011-05-24
Dao, Minh D (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Short range rf communication
C455S048000, C455S177100, C455S003060, 36, C375S242000
Reexamination Certificate
active
07949303
ABSTRACT:
A method for processing audio may include performing using one or more processors and/or circuits in a Bluetooth enabled communication device, receiving audio samples that are encoded by a Bluetooth subband CODEC. The encoded audio samples may include inverse discrete cosine transformed windowed audio data. Shifted subband samples corresponding to the received encoded audio samples may be discrete cosine transformed during decoding by a receive Bluetooth subband codec. The inverse discrete cosine transformed windowed audio data may be generated by an encoding matrix operation. Windowing of the audio data may occur prior to the encoding matrix operation. A plurality of filter coefficients may be utilized for the windowing of the audio data. The shifted subband samples may be discrete cosine transformed during a decoding matrix operation.
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Appendix B: Technical Specification of SBC; Bluetooth Specification, Advanced Audio Distribution Profile, Release Date May 22, 2003, pp. 50-71.
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Desai Prasanna
Tang Siwei
Broadcom Corporation
Dao Minh D
McAndrews Held & Malloy Ltd.
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