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    • 9. 发明授权
    • Associative memory apparatus for searching data in which manhattan distance is minimum
    • 用于搜索曼哈顿距离最小的数据的关联存储装置
    • US07113416B2
    • 2006-09-26
    • US10915430
    • 2004-08-11
    • Tetsushi KoideHans Jurgen MattauschYuji Yano
    • Tetsushi KoideHans Jurgen MattauschYuji Yano
    • G11C7/00
    • G11C15/00
    • In the present invention, focusing on the point that the number of transistors can be reduced to about ⅖ of that in a prior art due to an absolute-value-of-difference calculating circuit for an associative memory being configured of an addition circuit and a bit inversion circuit. The absolute-value-of-difference calculating circuit is built in a fully-parallel type associative memory as a unit comparison circuit, and all of the outputs of the absolute-value-of-difference calculating circuits for which the number of comparisons thereof are prepared are input to weight comparison circuits, whereby the calculation of the Manhattan distance between the search data and the reference data is carried out. In accordance with the configuration, because a Manhattan distance calculating circuit can be realized by a fewer number of transistors and with a small area, an associative memory apparatus as well can be realized at a low power consumption and with a small area.
    • 在本发明中,由于由联结存储器的差值绝对值计算电路由加法电路构成,因此重点在于现有技术中晶体管的数目可以减少到约2/5, 和位反转电路。 差分绝对值计算电路作为单位比较电路而构成全平行型联想存储器,并且其比较数的差分计算电路的绝对值计算电路的所有输出 准备的输入到加权比较电路,由此执行搜索数据和参考数据之间的曼哈顿距离的计算。 根据该结构,由于可以通过较少数量的晶体管和小面积来实现曼哈顿距离计算电路,所以可以在低功耗和小面积上实现关联存储装置。
    • 10. 发明申请
    • Associative memory apparatus for searching data in which manhattan distance is minimum
    • 用于搜索曼哈顿距离最小的数据的关联存储装置
    • US20050162878A1
    • 2005-07-28
    • US10915430
    • 2004-08-11
    • Tetsushi KoideHans MattauschYuji Yano
    • Tetsushi KoideHans MattauschYuji Yano
    • G11C15/04G06T7/00G11C15/00G06F7/00
    • G11C15/00
    • In the present invention, focusing on the point that the number of transistors can be reduced to about ⅖ of that in a prior art due to an absolute-value-of-difference calculating circuit for an associative memory being configured of an addition circuit and a bit inversion circuit. The absolute-value-of-difference calculating circuit is built in a fully-parallel type associative memory as a unit comparison circuit, and all of the outputs of the absolute-value-of-difference calculating circuits for which the number of comparisons thereof are prepared are input to weight comparison circuits, whereby the calculation of the Manhattan distance between the search data and the reference data is carried out. In accordance with the configuration, because a Manhattan distance calculating circuit can be realized by a fewer number of transistors and with a small area, an associative memory apparatus as well can be realized at a low power consumption and with a small area.
    • 在本发明中,由于由联结存储器的差值绝对值计算电路由加法电路构成,因此重点在于现有技术中晶体管的数目可以减少到约2/5, 和位反转电路。 差分绝对值计算电路作为单位比较电路而构成全平行型联想存储器,并且其比较数的差分计算电路的绝对值计算电路的所有输出 准备的输入到加权比较电路,由此执行搜索数据和参考数据之间的曼哈顿距离的计算。 根据该结构,由于可以通过较少数量的晶体管和小面积来实现曼哈顿距离计算电路,所以可以在低功耗和小面积上实现关联存储装置。