发明公开
- 专利标题: Ceiling microphone assembly
- 专利标题(中): 天花板麦克风阵列
-
申请号: EP05023188.5申请日: 2005-10-24
-
公开(公告)号: EP1651001A3公开(公告)日: 2007-12-26
- 发明人: Rodman, Jeffrey , Chu, Peter , Nimri, Alain , Schaefer, Stephen , Sexton, Martin G.
- 申请人: POLYCOM, INC.
- 申请人地址: 4750 Willow Road Pleasanton, California 94588-2708 US
- 专利权人: POLYCOM, INC.
- 当前专利权人: POLYCOM, INC.
- 当前专利权人地址: 4750 Willow Road Pleasanton, California 94588-2708 US
- 代理机构: Käck, Jürgen
- 优先权: US621743P 20041025; US156954 20050620
- 主分类号: H04R1/40
- IPC分类号: H04R1/40
摘要:
An overhead microphone assembly (8110; 8120) using multiple unidirectional microphone elements (8112, 8114, 8116; 8111, 8113, 8115). The microphone assembly (8110; 8120) is installed overhead, generally above all the desired sound sources and below the undesired sound sources. The signals from these multiple microphone elements (8112, 8114, 8116; 8111, 8113, 8115) are fed into a microphone steering processor which can mix and gate the signals to ensure the best signal/noise ratio. The steering processor may also track the sound source dynamically when such tracking (source locating) is desired. The resulting audio signal from the steering processor may be further processed, such as echo canceling, noise reduction and automatic gain control.
公开/授权文献
- EP1651001A2 Ceiling microphone assembly 公开/授权日:2006-04-26
信息查询