Invention Grant
- Patent Title: Sound pickup apparatus and echo cancellation processing method
- Patent Title (中): 拾音装置和回声消除处理方法
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Application No.: US11125541Application Date: 2005-05-09
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Publication No.: US08238547B2Publication Date: 2012-08-07
- Inventor: Kazuhiro Ohki , Hiroyuki Suzuki
- Applicant: Kazuhiro Ohki , Hiroyuki Suzuki
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frommer Lawrence & Haug LLP
- Agent William S. Frommer; Thomas F. Presson
- Priority: JPP2004-141610 20040511
- Main IPC: H04M9/08
- IPC: H04M9/08

Abstract:
A sound pickup apparatus selecting one of a plurality of microphones and performing echo cancellation processing for a plurality of microphones with an echo canceller to output a sound. The sound pickup apparatus sets a “learning mode” when the power supply is turned on, outputs a calibration sound from an echo cancellation calibration sound generator via a speaker, detects an echo at that time with a microphone and obtains an echo cancellation use parameter canceling the echo.
Public/Granted literature
- US20050254640A1 Sound pickup apparatus and echo cancellation processing method Public/Granted day:2005-11-17
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