发明授权
- 专利标题: Apparatus and method for matrix multiplication
- 专利标题(中): 矩阵乘法的装置和方法
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申请号: US912224申请日: 1997-08-15
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公开(公告)号: US6055556A公开(公告)日: 2000-04-25
- 发明人: Itzhak Barak , Jacob Kirschenbaum , Yacov Efrat , Shao-Wei Pan
- 申请人: Itzhak Barak , Jacob Kirschenbaum , Yacov Efrat , Shao-Wei Pan
- 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: G06F17/16
- IPC分类号: G06F17/16 ; G06F7/00 ; G06F7/52
摘要:
A system (400) alternatively performs real matrix operation in a first mode or performs complex matrix multiplication in a second mode. One input matrix (e.g., {B}) stays in a plurality of memory fields (430-k), while the other input matrix (e.g., {A}) is loaded into a plurality of registers (410-k). Parallel operating groups (405-k, 409-(k+1)) combine elements of {A} with elements of {B}. The groups (405-k, 409-(k+1)) comprise the memory fields (430-k), the registers (410-k) as well as computational units (440-k), switches (420-k) and adder units (460-k). The adder units (460-k) are configured by the switches (420-k) to operate as adders or to operate as accumulators, depending on the mode. Adders provide intermediate results and accumulators accumulate these intermediate results (e.g., Sum) to elements of the resulting matrix {C}. For complex multiplication, real (Re) and imaginary (Im) parts of matrix elements are in processed in adjacent groups. The system (400) uses logarithmic representations of the matrix elements and further comprises a log converter (490) and a plurality of inverse log converters (450-k).
公开/授权文献
- US4188145A Assembly and method of assembling 公开/授权日:1980-02-12