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    • 1. 发明授权
    • Opportunistic time-borrowing domino logic
    • 机会时间借贷多米诺骨牌
    • US5517136A
    • 1996-05-14
    • US398123
    • 1995-03-03
    • David HarrisSunny C. HuangJames NadirChing-Hua ChuJason C. StinsonAlper Ilkbahar
    • David HarrisSunny C. HuangJames NadirChing-Hua ChuJason C. StinsonAlper Ilkbahar
    • H03K19/017H03K19/096
    • H03K19/01728H03K19/0963
    • An opportunistic time-borrowing domino logic includes a domino pipeline having a plurality of logic gates coupled in series and controlled by first, second, third and fourth clock signals. The first domino gate in a half-cycle is clocked by either the first or the second clock signals, wherein the last domino gate in a half-cycle is clocked by either the third or the fourth clock cycles. The second clock signal is an inverse of the first clock signal, and the third and fourth clock signals have local delayed clock phases in which the falling edges of the third and fourth clock signals are delayed relative to the falling edges of the respective first and second clock signals. In a first half-cycle, a first type of domino gate is controlled by the first clock signal, with subsequent domino gates of the same type being controlled by the third clock signal. Odd-numbered half-cycles begin with a domino gate of the second type controlled by the second clock signal, followed by domino gates of the first type controlled by the fourth clock signal.
    • 机会时间借用多米诺骨牌包括具有串联耦合并由第一,第二,第三和第四时钟信号控制的多个逻辑门的多米诺河流管线。 半周期中的第一个多米诺骨门由第一或第二时钟信号计时,其中半周期中最后的多米诺门由第三或第四个时钟周期计时。 第二时钟信号是第一时钟信号的倒数,并且第三和第四时钟信号具有本地延迟的时钟相位,其中第三和第四时钟信号的下降沿相对于相应的第一和第二时钟信号的下降沿被延迟 时钟信号。 在第一个半周期中,第一种类型的多米诺式门由第一时钟信号控制,同一类型的后续多米诺式门由第三时钟信号控制。 奇数半周期以由第二时钟信号控制的第二类型的多米诺门开始,其后是由第四时钟信号控制的第一类型的多米诺门。