发明授权
US06898615B2 Signal processing unit and signal processing method including using an exponent part and a mantissa part for power generation
失效
信号处理单元和信号处理方法，包括使用指数部分和尾数部分进行发电
- 专利标题： Signal processing unit and signal processing method including using an exponent part and a mantissa part for power generation
- 专利标题（中）： 信号处理单元和信号处理方法，包括使用指数部分和尾数部分进行发电
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申请号： US09909971申请日： 2001-07-23
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公开(公告)号： US06898615B2公开(公告)日： 2005-05-24
- 发明人: Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
- 申请人： Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
- 申请人地址： JP Kadoma
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Kadoma
- 代理机构： Smith Patent Office
- 优先权： JP2000-222264 20000724
- 主分类号： G06F1/03
- IPC分类号： G06F1/03 ; G06F7/556 ; G06F1/02
摘要：
An exponent part extraction section extracts a bit series from the exponent part of an inputted floating point data. A mantissa part extraction section extracts the uppermost K bits from the mantissa part of the floating point data. A first conversion section inputs the output e from the exponent part extraction section and outputs the value of a function X(e) thereof. A second conversion section inputs the output f from the mantissa part extraction section and outputs the value of a function Y(f) thereof. A multiplier section multiplies together these values. By setting suitable tables in advance in the first and the second conversion sections, the calculation of the v^p for an item v of floating point data can be performed.
公开/授权文献
- US20020026468A1 Signal processing unit and signal processing method 公开/授权日：2002-02-28
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