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    • 2. 发明授权
    • Wire trimmed programmable logic array
    • 电线修剪可编程逻辑阵列
    • US07225422B2
    • 2007-05-29
    • US10464879
    • 2003-06-19
    • Robert John BuckiSang Hoo DhongJoel Abraham SilbermanOsamu Takahashi
    • Robert John BuckiSang Hoo DhongJoel Abraham SilbermanOsamu Takahashi
    • G06F17/50
    • G06F17/5054
    • A method of designing a logic circuit includes providing a leaf cell having at least one transistor. The leaf is suitable for use as a 1-cell or a 0-cell in the logic circuit. A first array of abutting leaf cells is tiled using at least one 1-cell and at least one 0-cell to define at least one logical expression by the relative positions of the array cells. Length optimized interconnects are added to the array. Each length optimized interconnect terminates at a last leaf cell in the array to which the interconnect makes contact. The leaf cell may be a floating leaf cell in which any pair of abutting cells are electrically isolated from one another until the length optimized interconnects are added to the design. The leaf cell array likely includes a set of rows and a set of columns in which the leaf cells in each row and the set of columns each correspond to an input of the logical expression.
    • 设计逻辑电路的方法包括提供具有至少一个晶体管的叶单元。 叶片适用于逻辑电路中的1单元或0单元。 使用至少一个1-单元和至少一个O单元来平铺第一对接叶单元阵列以通过阵列单元的相对位置限定至少一个逻辑表达式。 长度优化的互连将添加到阵列中。 每个长度优化的互连终止于互连接触到的阵列中的最后一个叶单元格。 叶细胞可以是浮叶细胞,其中任何一对邻接细胞彼此电隔离,直到长度优化的互连被添加到设计中。 叶单元阵列可能包括一组行和一组列,其中每行中的叶单元和列组各自对应于逻辑表达式的输入。
    • 3. 发明授权
    • Unified local clock buffer structures
    • 统一本地时钟缓冲结构
    • US06825695B1
    • 2004-11-30
    • US10455170
    • 2003-06-05
    • Sang Hoo DhongJoel Abraham SilbermanOsamu TakahashiJames Douglas WarnockDieter Wendel
    • Sang Hoo DhongJoel Abraham SilbermanOsamu TakahashiJames Douglas WarnockDieter Wendel
    • H03K19096
    • G06F1/10
    • Several local clock buffers are disclosed, each including an input section and an output section. The input sections are substantially identical, and include control logic and gating logic. The control logic produces a gating signal dependent upon multiple control signals and a time-delayed global clock signal. The gating logic produces an intermediate clock signal dependent upon the global clock signal and the gating signal. The output section produces at least one local clock signal dependent upon the intermediate clock signal. In one embodiment, the output section produces a first local clock signal dependent upon the intermediate clock signal and a second local clock signal dependent upon the first local clock signal. In another embodiment, the gating logic produces the intermediate clock signal dependent upon the global clock and gating signals and a feedback signal. The output section produces the feedback signal and one or more local clock signals.
    • 公开了几个本地时钟缓冲器,每个本地时钟缓冲器包括输入部分和输出部分。 输入部分基本相同,包括控制逻辑和门控逻辑。 控制逻辑产生取决于多个控制信号和时间延迟的全局时钟信号的选通信号。 门控逻辑产生取决于全局时钟信号和门控信号的中间时钟信号。 输出部分根据中间时钟信号产生至少一个本地时钟信号。 在一个实施例中,输出部分产生取决于中间时钟信号的第一本地时钟信号和取决于第一本地时钟信号的第二本地时钟信号。 在另一个实施例中,选通逻辑根据全局时钟和门控信号以及反馈信号产生中间时钟信号。 输出部分产生反馈信号和一个或多个本地时钟信号。
    • 10. 发明授权
    • Apparatus and method for generating memory access signals, and memory accessed using said signals
    • 用于产生存储器访问信号的装置和方法,以及使用所述信号访问的存储器
    • US06944088B2
    • 2005-09-13
    • US10262500
    • 2002-09-30
    • Toru AsanoSang Hoo DhongJoel Abraham SilbermanOsamu Takahashi
    • Toru AsanoSang Hoo DhongJoel Abraham SilbermanOsamu Takahashi
    • G06F9/355G06F12/08G11C8/10G11C8/00
    • G06F9/355G06F12/0895G11C8/10
    • A sum decoder is disclosed including multiple sum predecoders, a carry generator, and multiple rotate logic units. Each sum predecoder receives multiple bit pairs of non-overlapping segments of a first and second address signal, and produces an input signal dependent upon the bit pairs. The carry generator receives a lower-ordered portion of the first and second address signals, and generates multiple carry signals each corresponding to a different one of the sum predecoders. Each rotate logic unit receives the input signal produced by a corresponding sum predecoders and a corresponding one of the carry signals, rotates the bits of the input signal dependent upon the carry signal, and produces either the input signal or the rotated input signal as an output signal. A memory is described including the sum decoder, a final decode block, and a data array. The final decode block performs logical operations on the output signals of the sum decoder to produce selection signals. Each of the selection signals activates a word line of the data array. A method is disclosed for producing signals for accessing a memory. Highest ordered portions of the first and second address signals are divided into multiple non-overlapping segments. An input signal (i.e., an I term) is generated for each of the segments, as is a carry signal. For each of the segments, when the corresponding carry signal is set, the corresponding I term is rotated one bit position. The I terms are produced as the signals.
    • 公开了一种和解解码器,其包括多个和预测解码器,进位发生器和多个旋转逻辑单元。 每个和预解码器接收第一和第二地址信号的非重叠段的多个比特对,并且根据比特对产生输入信号。 进位发生器接收第一和第二地址信号的低阶部分,并且产生每个对应于预测解码器中的不同一个的多个进位信号。 每个旋转逻辑单元接收由相应的和预测码器和相应的一个进位信号产生的输入信号,根据进位信号旋转输入信号的位,并产生输入信号或旋转的输入信号作为输出 信号。 描述包括和解码器,最终解码块和数据阵列的存储器。 最终解码块对和解码器的输出信号执行逻辑运算以产生选择信号。 每个选择信号激活数据阵列的字线。 公开了一种用于产生访问存储器的信号的方法。 第一和第二地址信号的最高有序部分被分成多个非重叠段。 对于每个段产生输入信号(即I项),进位信号也是如此。 对于每个段,当相应的进位信号被设置时,对应的I项被旋转一位位置。 我的条款是作为信号产生的。