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    • 7. 发明授权
    • Butterfly match-line structure and search method implemented thereby
    • 由此实现蝴蝶匹配线结构和搜索方法
    • US07903443B2
    • 2011-03-08
    • US11675440
    • 2007-02-15
    • Po-Tsang HuangWei HwangShu-Wei Chang
    • Po-Tsang HuangWei HwangShu-Wei Chang
    • G11C15/00
    • G11C15/04
    • The present invention discloses a butterfly match-line structure and a search method implemented thereby, wherein the parallelism of the match lines is increased to shorten the search time, and a butterfly-type connection is used to reduce the power consumption and achieve the best energy efficiency. Via the butterfly-type connection, information can be reciprocally transmitted between the parallel match lines, which are independent originally. When a miss case occurs, more succeeding memory cells will not be compared but will be turned off. Thereby, the power consumption is reduced. Further, XOR-based conditional keepers are used to reduce the matching time and the power consumption. Besides, such a circuit is also used to shorten the delay time of the butterfly-type connection.
    • 本发明公开了一种蝴蝶匹配线结构和由此实现的搜索方法,其中增加匹配线的并行性以缩短搜索时间,并且使用蝴蝶型连接来降低功耗并实现最佳能量 效率。 通过蝶型连接,可以在原始独立的并行匹配线之间相互传输信息。 当发生错误情况时,更多的后续存储单元将不被比较,但将被关闭。 从而降低功耗。 此外,基于XOR的条件保持器用于减少匹配时间和功耗。 此外,这种电路也用于缩短蝴蝶式连接的延迟时间。