发明名称 |
System that detects and identifies periodic interference |
摘要 |
A system improves speech detection or processing by identifying registration signals. The system encodes a limited frequency band by varying the amplitude of a pulse width modulated signal between predefined values. The signal is separated into frequency bins that identify amplitude and phase. The registration signal is measured by comparing a difference in average acoustic power in a plurality of adjacent bins over time. |
申请公布号 |
US8438022(B2) |
申请公布日期 |
2013.05.07 |
申请号 |
US201213444182 |
申请日期 |
2012.04.11 |
申请人 |
FALLAT MARK;SAHOTA DEREK;QNX SOFTWARE SYSTEMS LIMITED |
发明人 |
FALLAT MARK;SAHOTA DEREK |
分类号 |
G10L21/02 |
主分类号 |
G10L21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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