Invention Grant
US08223959B2 Echo cancellation in which sound source signals are spatially distributed to all speaker devices
有权
声源消除其中声源信号在空间上分布到所有扬声器装置
- Patent Title: Echo cancellation in which sound source signals are spatially distributed to all speaker devices
- Patent Title (中): 声源消除其中声源信号在空间上分布到所有扬声器装置
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Application No.: US11831892Application Date: 2007-07-31
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Publication No.: US08223959B2Publication Date: 2012-07-17
- Inventor: Scott Grasley , David R Ingalls , Otto Gygax
- Applicant: Scott Grasley , David R Ingalls , Otto Gygax
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: H04M9/08
- IPC: H04M9/08 ; H04B3/20 ; A61F11/06
Abstract:
A system includes microphone devices, echo cancellation mechanism, and speaker devices. Each echo cancellation mechanism corresponds to one of the microphone devices. Each speaker device corresponds to a sound source signal. Each sound source signal is spatially distributed to all the speaker devices, and each echo cancellation mechanism receives as a reference signal a combination of all the sound source signals.
Public/Granted literature
- US20090034712A1 Echo cancellation in which sound source signals are spatially distributed to all speaker devices Public/Granted day:2009-02-05
Information query
