发明授权
- 专利标题： Voiceband signal classification
- 专利标题（中）： 语音信号分类
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申请号： US927506申请日： 1986-11-06
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公开(公告)号： US4815136A公开(公告)日： 1989-03-21
- 发明人: Nevio Benvenuto
- 申请人： Nevio Benvenuto
- 申请人地址： NY New York NJ Murray Hill
- 专利权人： American Telephone and Telegraph Company,AT&T Bell Laboratories
- 当前专利权人： American Telephone and Telegraph Company,AT&T Bell Laboratories
- 当前专利权人地址： NY New York NJ Murray Hill
- 主分类号： H04M11/00
- IPC分类号： H04M11/00 ; H04B14/04 ; H04L27/22 ; G10L5/06
摘要：
A signal is classified as one among a plurality of classifications by employing the autocorrelation of a complex low-pass version of the signal, i.e., the complex autocorrelation. The normalized magnitude of the complex autocorrelation obtained at a prescribed delay interval, i.e., "lag", is compared to predetermined threshold values to classify the signal as having one of a plurality of baud rates.
公开/授权文献
- US5953870A Raised floor system and cable support apparatus 公开/授权日：1999-09-21
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