发明授权
US08638951B2 Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals
有权
用于基于两个或多个宽带麦克风信号产生改进的宽带音频信号的电子设备
- 专利标题: Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals
- 专利标题(中): 用于基于两个或多个宽带麦克风信号产生改进的宽带音频信号的电子设备
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申请号: US12837314申请日: 2010-07-15
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公开(公告)号: US08638951B2公开(公告)日: 2014-01-28
- 发明人: Robert Zurek , Kevin Bastyr , Joel Clark , Plamen Ivanov
- 申请人: Robert Zurek , Kevin Bastyr , Joel Clark , Plamen Ivanov
- 申请人地址: US IL Libertyville
- 专利权人: Motorola Mobility LLC
- 当前专利权人: Motorola Mobility LLC
- 当前专利权人地址: US IL Libertyville
- 代理机构: Ingrassia Fisher & Lorenz, PC
- 代理商 Erin P. Madill; Sylvia Chen
- 主分类号: H04R3/00
- IPC分类号: H04R3/00 ; H04N5/76 ; G06F15/00 ; G10L19/00
摘要:
At least two microphones generate wideband electrical audio signals in response to incoming sound waves, and the wideband audio signals are filtered to generate low band signals and high band signals. From the low band signals, low band beamformed signals are generated, and the low band beamformed signals are combined with the high band signals to generate modified wideband audio signals. In one implementation, an electronic apparatus is provided that includes a microphone array, a crossover, a beamformer module, and a combiner module. The microphone array has at least two pressure microphones that generate wideband electrical audio signals in response to incoming sound waves. The crossover generates low band signals and high band signals from the wideband electrical audio signals. The beamformer module generates low band beamformed signals from the low band signals. The combiner module combines the high band signals and the low band beamformed signals to generate modified wideband audio signals.
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