发明授权
US07647209B2 Signal separating apparatus, signal separating method, signal separating program and recording medium
有权
信号分离装置，信号分离方法，信号分离程序和记录介质
- 专利标题： Signal separating apparatus, signal separating method, signal separating program and recording medium
- 专利标题（中）： 信号分离装置，信号分离方法，信号分离程序和记录介质
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申请号： US10594983申请日： 2006-02-07
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公开(公告)号： US07647209B2公开(公告)日： 2010-01-12
- 发明人: Hiroshi Sawada , Shoko Araki , Ryo Mukai , Shoji Makino
- 申请人： Hiroshi Sawada , Shoko Araki , Ryo Mukai , Shoji Makino
- 申请人地址： JP Tokyo
- 专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2005-031824 20050208; JP2005-069768 20050311; JP2005-166760 20050607
- 国际申请： PCT/JP2006/302092 WO 20060207
- 国际公布： WO2006/085537 WO 20060817
- 主分类号： G06F3/00
- IPC分类号： G06F3/00
摘要：
A frequency domain transforming section transforms mixed signals observed by multiple sensors into mixed signals in the frequency domain, a complex vector generating section generates a complex vector by using the frequency-domain mixed signals, a normalizing section generates a normalized vector excluding frequency dependence of the complex vector, and a clustering section clusters the normalized vectors to generate clusters. Then, a separated signal generating section generates separated signals in the frequency domain by using information about the clusters and a time domain transforming section transforms the separated signals in the frequency domain into separated signals in the time domain.
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