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    • 1. 发明授权
    • Search circuit having individually selectable search engines
    • 具有可单独选择的搜索引擎的搜索电路
    • US07529746B2
    • 2009-05-05
    • US11523958
    • 2006-09-19
    • Michael E. IchiriuMartin FabryLarry A. WallSanjay Sreenath
    • Michael E. IchiriuMartin FabryLarry A. WallSanjay Sreenath
    • G06F17/30
    • G06F17/30985Y10S707/99936
    • A content search circuit for determining whether an input string matches one or more of a plurality of regular expressions, the content search circuit including an instruction memory for storing a plurality of microprograms, each microprogram embodying a corresponding one of the regular expressions, a control circuit having an input to receive the input string, and having a number of outputs, and a plurality of search engines, each having a first input coupled to a corresponding output of the control circuit and having a second input coupled to the instruction memory, wherein each search engine is selectable to execute any of the microprograms stored in the instruction memory to search the input string for any of the regular expressions embodied in the microprograms.
    • 一种用于确定输入串是否匹配多个正则表达式中的一个或多个的内容搜索电路,所述内容搜索电路包括用于存储多个微程序的指令存储器,体现相应的正则表达式的每个微程序,控制电路 具有接收输入串的输入,以及具有多个输出的多个搜索引擎,以及多个搜索引擎,每个搜索引擎具有耦合到控制电路的对应输出的第一输入,并且具有耦合到指令存储器的第二输入,其中每个 可以选择搜索引擎来执行存储在指令存储器中的任何微程序,以搜索输入字符串中的微程序中体现的任何正则表达式。
    • 4. 发明申请
    • Search Circuit having individually selectable search engines
    • 具有可单独选择的搜索引擎的搜索电路
    • US20080071780A1
    • 2008-03-20
    • US11523958
    • 2006-09-19
    • Michael E. IchiriuMartin Fabrylarry A. WallSanjay Sreenath
    • Michael E. IchiriuMartin Fabrylarry A. WallSanjay Sreenath
    • G06F17/30
    • G06F17/30985Y10S707/99936
    • A content search circuit for determining whether an input string matches one or more of a plurality of regular expressions, the content search circuit including an instruction memory for storing a plurality of microprograms, each microprogram embodying a corresponding one of the regular expressions, a control circuit having an input to receive the input string, and having a number of outputs, and a plurality of search engines, each having a first input coupled to a corresponding output of the control circuit and having a second input coupled to the instruction memory, wherein each search engine is selectable to execute any of the microprograms stored in the instruction memory to search the input string for any of the regular expressions embodied in the microprograms.
    • 一种用于确定输入串是否匹配多个正则表达式中的一个或多个的内容搜索电路,所述内容搜索电路包括用于存储多个微程序的指令存储器,体现相应的正则表达式的每个微程序,控制电路 具有接收输入串的输入,以及具有多个输出的多个搜索引擎,以及多个搜索引擎,每个搜索引擎具有耦合到控制电路的对应输出的第一输入,并且具有耦合到指令存储器的第二输入,其中每个 可以选择搜索引擎来执行存储在指令存储器中的任何微程序,以搜索输入字符串中的微程序中体现的任何正则表达式。
    • 10. 发明授权
    • Content addressable memory with error detection signaling
    • 具有错误检测信号的内容可寻址存储器
    • US06728124B1
    • 2004-04-27
    • US10453719
    • 2003-06-03
    • Michael E. IchiriuVaradarajan Srinivasan
    • Michael E. IchiriuVaradarajan Srinivasan
    • G11C1500
    • G11C15/00
    • A content addressable memory (CAM) device having a data CAM array and an error CAM array. The data CAM array is provided to store data words, compare the data words with a comparand value, and, if one of the data words matches the comparand value, assert a match signal that corresponds to the matching data word. A priority encoder responds to the match signal by outputting a match address that corresponds to the matching data word. The error CAM array is provided to store at least one error address value and is coupled to the priority encoder to receive the match address. The error CAM array compares the match address with the error address value and asserts a match error signal if the match address matches the error address value.
    • 具有数据CAM阵列和错误CAM阵列的内容可寻址存储器(CAM)装置。 提供数据CAM阵列以存储数据字,将数据字与比较值进行比较,并且如果数据字中的一个与比较值匹配,则断言与匹配数据字对应的匹配信号。 优先编码器通过输出与匹配数据字对应的匹配地址来响应匹配信号。 提供错误CAM阵列以存储至少一个错误地址值,并且耦合到优先编码器以接收匹配地址。 错误CAM阵列将匹配地址与错误地址值进行比较,如果匹配地址与错误地址值匹配,则会发出匹配错误信号。