发明授权
- 专利标题： Adder cell for carry-save arithmetic
- 专利标题（中）： 加法单元进行保存算术
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申请号： US324807申请日： 1989-03-17
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公开(公告)号： US4893269A公开(公告)日： 1990-01-09
- 发明人: Karl Knauer , Winfried Kamp
- 申请人： Karl Knauer , Winfried Kamp
- 申请人地址： DEX Berlin and Munich
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DEX Berlin and Munich
- 优先权： DEX3814639 19880429
- 主分类号： G06F7/501
- IPC分类号： G06F7/501 ; G06F7/50 ; G06F7/503 ; G06F7/508
摘要：
An adder cell in which the sum signal and the carry signal are formed with equal speed is provided for employment in "carry-save" adders, wherein the sum signal and the carry signal are separately forwarded to separate inputs of following adder cells. The circuit of the adder cell is designed such that the sum signal as well as the carry signal each have to traverse only two gates, so that the running times of sum signal and carry signal are approximately identical and shorter than the maximum running time of conventional adder cells.
公开/授权文献
- US5694823A Document trimming apparatus 公开/授权日：1997-12-09
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