发明授权
- 专利标题: Method for creating a representation of a calculation result linearly dependent upon a square of a value
- 专利标题(中): 用于根据值的平方线性地创建计算结果的表示的方法
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申请号: US11762690申请日: 2007-06-13
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公开(公告)号: US08037114B2公开(公告)日: 2011-10-11
- 发明人: Marc Gayer , Manfred Lutzky , Markus Lohwasser , Sascha Disch , Johannes Hilpert , Stefan Geyersberger , Bernhard Grill
- 申请人: Marc Gayer , Manfred Lutzky , Markus Lohwasser , Sascha Disch , Johannes Hilpert , Stefan Geyersberger , Bernhard Grill
- 申请人地址: DE Munich
- 专利权人: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人地址: DE Munich
- 代理机构: Glenn Patent Group
- 代理商 Michael A. Glenn
- 优先权: DE102004059979 20041213
- 主分类号: G06F15/00
- IPC分类号: G06F15/00
摘要:
In the transition into the logarithmic range, not the entire bit width of the result linearly dependent upon the square of the value must be considered. Rather, it is possible to scale the result of a value with x bits such that a representation with less than x bits of the result is sufficient to receive the logarithmic representation based thereon. The effect of the scaling factor on the resulting logarithmic representation may be compensated for by adding or subtracting a correction value received by the logarithm function applied to the scaling factor to or from the scaled logarithmic representation without any loss of dynamics. This way, a method and an apparatus for creating a representation of a result linearly dependent upon a square of a value are provided so that the calculation is simple and/or possible with little hardware expenditure.
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