发明公开
- 专利标题： IMPROVED AUDIO REPRODUCTION SYSTEM
- 专利标题（中）： 改进的声音再现
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申请号： EP94913962.0申请日： 1994-04-01
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公开(公告)号： EP0694197A1公开(公告)日： 1996-01-31
- 发明人: EATWELL, Graham P., 26 East Drive , LANGLEY,Andrew, 28 Canons Field
- 申请人： NOISE CANCELLATION TECHNOLOGIES, INC.
- 申请人地址： 1015 West Nursery Road, Suite 101 Linthicum, MD 21090 US
- 专利权人： NOISE CANCELLATION TECHNOLOGIES, INC.
- 当前专利权人： NOISE CANCELLATION TECHNOLOGIES, INC.
- 当前专利权人地址： 1015 West Nursery Road, Suite 101 Linthicum, MD 21090 US
- 代理机构： Geary, Stuart Lloyd, et al
- 优先权： US19930041382 19930401
- 国际公布： WO1994023419 19941013
- 主分类号： G10K11
- IPC分类号： G10K11 ; H04S7
摘要：
An improved audio system designed to maintain a desired sound at the ear of a listener by using an equalization filter (2). The equalization filter (2) is continuously adjusted in response to the signal (9) from a sensor (8) which monitors the sound close to the listener's ear. The audio system can be combined with an active noise control system (3) to reduce interference from external noise.
公开/授权文献
- EP0694197B1 IMPROVED AUDIO REPRODUCTION SYSTEM 公开/授权日：2000-02-23
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