发明授权
US5600581A Logarithm/inverse-logarithm converter utilizing linear interpolation and
method of using same
失效
使用线性插值的对数/逆对数转换器及其使用方法
- 专利标题: Logarithm/inverse-logarithm converter utilizing linear interpolation and method of using same
- 专利标题(中): 使用线性插值的对数/逆对数转换器及其使用方法
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申请号: US391880申请日: 1995-02-22
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公开(公告)号: US5600581A公开(公告)日: 1997-02-04
- 发明人: James D. Dworkin , Philip B. Giangarra , Stephen L. Smith
- 申请人: James D. Dworkin , Philip B. Giangarra , Stephen L. Smith
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: G06F1/03
- IPC分类号: G06F1/03 ; H03M7/50 ; G06F1/02 ; G06F7/00 ; G06F15/00
摘要:
A converter which may be used for implementing either logarithmic or inverse-logarithmic functions includes a memory, a multiplier, and an adder. The memory stores a plurality of pre-computed values which are used in an interpolation to estimate a logarithmic or inverse-logarithmic function over a domain of input signals.
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