Single channel suppression of interfering sources
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United States of America Patent
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Feb 14, 2017
Grant Date -
Mar 12, 2015
app pub date -
Nov 13, 2014
filing date -
Mar 15, 2013
priority date (Note) -
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Abstract
Techniques described herein are directed to performing back-end single-channel suppression of one or more types of interfering sources (e.g., additive noise) in an uplink path of a communication device. The back-end single-channel suppression techniques may suppress types(s) of additive noise using one or more suppression branches (e.g., a non-spatial (or stationary noise) branch, a spatial (or non-stationary noise) branch, a residual echo suppression branch, etc.). The non-spatial branch may be configured to suppress stationary noise from the single-channel audio signal, the spatial branch may be configured to suppress non-stationary noise from the single-channel audio signal and the residual echo suppression branch may be configured to suppress residual echo from the signal-channel audio signal. The spatial branch may be disabled based on an operational mode (e.g., single-user speakerphone mode or a conference speakerphone mode) of the communication device or based on a determination that spatial information is ambiguous.
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Patent Owner(s)
- AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Borgstrom, Bengt J | Santa Monica, US | 10 | 178 |
Thyssen, Jes | San Jaun Capistrano, US | 94 | 2927 |
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