Semiconductor device
    24.
    发明授权
    Semiconductor device 失效
    半导体器件

    公开(公告)号:US07636808B2

    公开(公告)日:2009-12-22

    申请号:US10790880

    申请日:2004-03-03

    IPC分类号: G06F12/08 G11C8/00

    摘要: A semiconductor device employs a SESO memory or a phase change memory which has a smaller memory cell area than SRAM. The semiconductor device has a plurality of memory banks each composed of the SESO or phase change memories, and a cache memory which has a number of ways equal to the ratio of a write speed (m) to a read speed (n). The semiconductor device controls the cache memory such that a write back operation is not repeated on the same memory bank.

    摘要翻译: 半导体器件采用具有比SRAM更小的存储单元面积的SESO存储器或相变存储器。 半导体器件具有各自由SESO或相变存储器构成的多个存储体,以及高速缓冲存储器,其具有等于写入速度(m)与读取速度(n)的比例的多个方式。 半导体器件控制高速缓冲存储器,使得在相同的存储体上不重复写回操作。

    Semiconductor integrated circuit device
    26.
    发明授权
    Semiconductor integrated circuit device 失效
    半导体集成电路器件

    公开(公告)号:US07619911B2

    公开(公告)日:2009-11-17

    申请号:US10579911

    申请日:2003-11-21

    IPC分类号: G11C15/00

    CPC分类号: G11C15/04 G11C15/043

    摘要: In a memory array structured of memory cells using a storage circuit STC and a comparator CP, either one electrode of a source electrode or a drain electrode of a transistor, whose gate electrode is connected to a search line, of a plurality of transistors structuring the comparator CP is connected to a match line HMLr precharged to a high voltage. Further, a match detector MDr is arranged on a match line LMLr precharged to a low voltage to discriminate a comparison signal voltage generated at the match line according to the comparison result of data. According to such memory array structure and operation, comparison operation can be performed at low power and at high speed while influence of search-line noise is avoided in a match line pair. Therefore, a low power content addressable memory which allows search operation at high speed can be realized.

    摘要翻译: 在使用存储电路STC和比较器CP的存储器单元构成的存储器阵列中,将栅电极连接到搜索线的晶体管的源电极或漏电极的一个电极,构成 比较器CP连接到预充电到高电压的匹配线HMLr。 此外,匹配检测器MDr布置在预充电到低电压的匹配线LMLr上,以根据数据的比较结果来识别在匹配线处产生的比较信号电压。 根据这种存储器阵列结构和操作,可以在低功率和高速度下执行比较操作,同时在匹配线对中避免搜索线噪声的影响。 因此,可以实现允许高速搜索操作的低功率内容可寻址存储器。

    Ternary content addressable memory with block encoding
    27.
    发明授权
    Ternary content addressable memory with block encoding 失效
    具有块编码的三元内容可寻址存储器

    公开(公告)号:US07505296B2

    公开(公告)日:2009-03-17

    申请号:US11877310

    申请日:2007-10-23

    IPC分类号: G11C15/00

    CPC分类号: G11C15/04 G11C15/043

    摘要: The range-specified IP addresses are effectively stored to reduce the number of necessary entries thereby the memory capacity of TCAM is improved. The representative means of the present invention is that: the storage information (entry) and the input information (comparison information or search key) are the common block code such that any bit must be the logical value ‘1’; Match-lines are hierarchically structured and memory cells are arranged at the intersecting points of a plurality of sub-match lines and a plurality of search lines; Further the sub-match lines are connected to main-match lines through the sub-match detectors, respectively and main-match detectors are arranged on the main-match lines.

    摘要翻译: 有效存储范围指定的IP地址,以减少必要条目的数量,从而提高TCAM的存储容量。 本发明的代表性手段是:存储信息(条目)和输入信息(比较信息或搜索关键字)是公共块码,使得任何位必须是逻辑值“1”; 匹配线是分层结构的,并且存储器单元被布置在多个子匹配线和多条搜索线的交叉点处; 此外,子匹配线分别通过子匹配检测器连接到主匹配线,并且主匹配检测器被布置在主匹配线上。

    Data communication method and data communication device and semiconductor device

    公开(公告)号:US07397878B2

    公开(公告)日:2008-07-08

    申请号:US10377720

    申请日:2003-03-04

    IPC分类号: H04L7/02

    摘要: The present invention provides a data communication method and a data communication device capable of performing high-speed data communication by using a parallel link and higher-speed data communication by reducing a timing skew. A data communication method includes: a step of encoding data of N bits (N being 2 or larger) to transmission data of M bits (M being 3 or larger) on a transmission side; a step of generating a transmission signal in which transition takes place in at least one level of any of the transmission data synchronously with a transmission clock and transmitting the transmission signal to a transmission line on the transmission side; a step of recognizing transition in the signal of M bits received via the transmission line and detecting the reception data of M bits synchronized with the transmission clock on a reception side; and a step of decoding the reception data of M bits to the data of N bits.

    SEMICONDUCTOR DEVICE
    29.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20080089137A1

    公开(公告)日:2008-04-17

    申请号:US11873254

    申请日:2007-10-16

    IPC分类号: G11C7/10

    摘要: A dummy cell includes a plurality of first memory cells MC for storing “1” or “0”, arranged at points of intersection between a plurality of word lines WR0 to WR7 and a plurality of first data lines D0 to D7, a plurality of first dummy cells MCH for storing “1” or “0”, arranged at points of intersection between the word lines WR0 to WR7 and a first dummy data line, and a plurality of second dummy cells MCL for storing “0”, arranged at points of intersection between the word lines WR0 to WR7 and a second dummy data line DD1.

    摘要翻译: 虚拟单元包括:多个第一存储单元MC,用于存储多个字线WR0至WR7与多个第一数据线D 0至D 7之间的交点处的“1”或“0” 多个用于存储“1”或“0”的第一虚拟单元MCH,布置在字线WR0至WR7和第一虚拟数据线之间的交点处,以及多个第二虚拟单元MCL,用于存储“0” “,布置在字线WR0至WR7之间的交点处和第二伪数据线DD 1之间。