发明授权
- 专利标题: High-speed digital accumulator with wide dynamic range
- 专利标题(中): 高速数字蓄能器,动态范围广
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申请号: US09307083申请日: 1999-05-07
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公开(公告)号: US06523057B1公开(公告)日: 2003-02-18
- 发明人: Pierandrea Savo , Luigi Zangrandi , Stefano Marchese
- 申请人: Pierandrea Savo , Luigi Zangrandi , Stefano Marchese
- 优先权: EP98830278 19980508
- 主分类号: G06F750
- IPC分类号: G06F750
摘要:
A high-speed, wide dynamic range, digital accumulator includes a first adder stage in which an input addend is added to a value of a least significant part of an output of an accumulator from a preceding clock period. The accumulator also includes at least one second stage having incrementer/decrementer means for performing an increment, decrement or identity operation on a most significant part of the output of the accumulator. The incrementer/decrementer means includes logic means for triggering the increment, a decrement or identity operation on the most significant part of the accumulator output based on a decision made on results obtained at the previous clock period.
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