Inter-channel bandwidth extension spectral mapping and adjustment

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United States of America Patent

PATENT NO 11705138
APP PUB NO 20210098006A1
SERIAL NO

17120067

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Abstract

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A method includes generating a synthesized non-reference high-band channel based on a non-reference high-band excitation corresponding to a non-reference target channel. The method further includes estimating one or more spectral mapping parameters based on the synthesized non-reference high-band channel and a high-band portion of the non-reference target channel. The method also includes applying the one or more spectral mapping parameters to the synthesized non-reference high-band channel to generate a spectrally shaped synthesized non-reference high-band channel. The method further includes generating an encoded bitstream based on the one or more spectral mapping parameters and the spectrally shaped synthesized non-reference high-band channel.

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Patent OwnerAddress
QUALCOMM INCORPORATED5775 MOREHOUSE DRIVE SAN DIEGO CA 92121-1714

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Atti, Venkatraman San Diego, US 84 737
Chebiyyam, Venkata Subrahmanyam Chandra Sekhar Seattle, US 91 460

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