发明名称 |
Exponentiation circuit utilizing shift means and method of using same |
摘要 |
A circuit and method for computing an exponential signal xg is provided. The circuit includes a logarithm converter which converts an input signal to binary word that represents the logarithm of an input signal x. A first shift register shifts the binary word in a bit-wise fashion to produce a first intermediate value; while a second shift register shifts the binary word in a bit-wise fashion to produce a second intermediate value. The shift registers may be implemented using multiplexers. The shifting operations are equivalent to multiplying the intermediate values by a factor which is a power of two. The first intermediate value is either added to or subtracted from the second intermediate value to produce a combined value. An inverse-logarithm converter converts the combined value to the exponential signal.
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申请公布号 |
US5553012(A) |
申请公布日期 |
1996.09.03 |
申请号 |
US19950401515 |
申请日期 |
1995.03.10 |
申请人 |
MOTOROLA, INC. |
发明人 |
BUSS, JOHN M.;DWORKIN, JAMES D.;LLOYD, SCOTT E.;PAN, SHAO W.;SMITH, STEPHEN L.;WANG, SHAY-PING T. |
分类号 |
G06F7/552;G06F7/556;(IPC1-7):G06F1/02;G06F7/00;G06F15/00;H03M7/50 |
主分类号 |
G06F7/552 |
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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