发明名称 Table lookup multiplier with digital filter
摘要 In a digital multiplier for multiplying two multi-bit binary operands to produce a binary result by means of a lookup table containing all possible products of said operands, reduction of the total amount of memory required to store the table is obtained by segmenting one operand into a plurality of non-overlapping bit groups and constructing lookup tables for the bit groups, in which each lookup table contains products of its associated bit group and the other, non-partitioned operand. Multiplication is accomplished by generating partial products from the lookup tables, shifting the partial products to account for the relative significance of their associated bit groups, and adding the partial products to provide the resultant product.
申请公布号 US5117385(A) 申请公布日期 1992.05.26
申请号 US19910772117 申请日期 1991.10.08
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 GEE, RALPH L.
分类号 G06F1/035;G06F7/52 主分类号 G06F1/035
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