发明授权
US5325461A Speech signal coding and decoding system transmitting allowance range
information
失效
语音信号编码和解码系统发送允许范围信息
- 专利标题： Speech signal coding and decoding system transmitting allowance range information
- 专利标题（中）： 语音信号编码和解码系统发送允许范围信息
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申请号： US838340申请日： 1992-02-20
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公开(公告)号： US5325461A公开(公告)日： 1994-06-28
- 发明人: Yoshinori Tanaka , Yoshihiro Sakai , Yasuko Shirai , Tomohiko Taniguchi , Hideaki Kurihara
- 申请人： Yoshinori Tanaka , Yoshihiro Sakai , Yasuko Shirai , Tomohiko Taniguchi , Hideaki Kurihara
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX3-026327 19910220
- 主分类号： G10L19/04
- IPC分类号： G10L19/04 ; G10L11/04 ; G10L19/00 ; G10L19/06 ; G10L9/00
摘要：
A speech signal coding apparatus inputs a pitch period generated by coding a speech signal, and outputs information on a range for said pitch period, together with the pitch period. A speech signal decoding apparatus inputs the pitch period and the above information on the range, and determines whether or not the pitch period is within the range. When the pitch period is determined to be within the range, the speech signal decoding apparatus outputs the above pitch period. When the pitch period is determined not to be within the range, the speech signal decoding apparatus outputs as a pitch period a predetermined value within the range.
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