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    • 8. 发明申请
    • Method for processing design data of semiconductor integrated circuit
    • 半导体集成电路设计数据处理方法
    • US20050086621A1
    • 2005-04-21
    • US10895821
    • 2004-07-22
    • Yoichi MatsumuraTakako OhashiKatsuya FujimuraChihiro ItohHiroki Taniguchi
    • Yoichi MatsumuraTakako OhashiKatsuya FujimuraChihiro ItohHiroki Taniguchi
    • G06F17/50G06F9/45G06F9/455H01L21/82
    • G06F17/5045
    • A circuit from which a buffer and an inverter are removed without changing logic is displayed. Such a circuit is obtained by a first or a second method. With the first method, all buffers which do not change logic and, when a clock path is divided at a branch point of wiring, all pairs of inverters located on each divided clock path are removed from the clock circuit. With the second method, a logic element located on a plurality of clock paths is copied and added to the clock circuit, all buffers which do not change logic and all pairs of inverters located between logic elements other than the above buffers are removed, and redundant partial circuits, if any, realizing the same logic and being located on a plurality of clock paths are removed. Thus, the clock circuit can be displayed so as to facilitate a designer's understanding of logic.
    • 显示缓冲器和逆变器在不改变逻辑的情况下被去除的电路。 这种电路是通过第一种或第二种方法获得的。 利用第一种方法,不改变逻辑的所有缓冲器,并且当在布线的分支点处划分时钟路径时,位于每个划分时钟路径上的所有反相器对都从时钟电路中去除。 利用第二种方法,将位于多个时钟路径上的逻辑元件复制并添加到时钟电路中,除去不改变逻辑的所有缓冲器和位于除了上述缓冲器之外的逻辑元件之间的所有反相器对,并且冗余 去除实现相同逻辑并位于多个时钟路径上的部分电路(如果有的话)。 因此,可以显示时钟电路,以便于设计者对逻辑的理解。