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    • 1. 发明申请
    • Area efficient fractureable logic elements
    • 区域有效的可断裂逻辑元件
    • US20070063732A1
    • 2007-03-22
    • US11234538
    • 2005-09-22
    • Sinan KaptanogluBruce PedersenJames SchleicherJinyong YuanMichael HuttonDavid Lewis
    • Sinan KaptanogluBruce PedersenJames SchleicherJinyong YuanMichael HuttonDavid Lewis
    • H03K19/177
    • H03K19/1737
    • A fracturable logic element includes a first, second, third, and fourth two-input lookup tables (2-LUTs). Each 2-LUT includes four memory elements. Each memory element is configured to hold one data bit. The fracturable logic element also includes a set of six inputs and a control circuit configured to operate in a first mode and a second mode. When the control circuit operates in the first mode, a first combinatorial output is generated using four of the set of six inputs and the first, second, third, and fourth 2-LUTs. When the control circuit operates in the second mode, a second combinatorial output is generated using a first subset of three of the set of six inputs and the first and second 2-LUTS. Additionally, when the control circuit operates in the second mode, a third combinatorial output is generated using a second subset of three of the set of six inputs and the third and fourth 2-LUTs, the first and second subsets being non-intersecting subsets of the set of six inputs.
    • 可分解逻辑元件包括第一,第二,第三和第四双输入查找表(2-LUT)。 每个2-LUT包括四个存储元件。 每个存储器元件被配置为保持一个数据位。 可分解逻辑元件还包括一组六个输入和被配置为在第一模式和第二模式下操作的控制电路。 当控制电路在第一模式下工作时,使用六个输入和第一,第二,第三和第四2-LUT中的四个产生第一组合输出。 当控制电路在第二模式下操作时,使用该组六个输入和第一和第二2-LUTS中的三个的第一子集来生成第二组合输出。 另外,当控制电路在第二模式下工作时,使用六组输入和第三和第四2-LUT组中的三个的第二子集来产生第三组合输出,第一和第二子集是不相交的子集 一组六个输入。
    • 8. 发明授权
    • Area efficient fractureable logic elements
    • 区域有效的可断裂逻辑元件
    • US07330052B2
    • 2008-02-12
    • US11234538
    • 2005-09-22
    • Sinan KaptanogluBruce B. PedersenJames G. SchleicherJinyong YuanMichael D. HuttonDavid Lewis
    • Sinan KaptanogluBruce B. PedersenJames G. SchleicherJinyong YuanMichael D. HuttonDavid Lewis
    • G06F7/38H03K19/177
    • H03K19/1737
    • A fracturable logic element includes a first, second, third, and fourth two-input lookup tables (2-LUTs). Each 2-LUT includes four memory elements. Each memory element is configured to hold one data bit. The fracturable logic element also includes a set of six inputs and a control circuit configured to operate in a first mode and a second mode. When the control circuit operates in the first mode, a first combinatorial output is generated using four of the set of six inputs and the first, second, third, and fourth 2-LUTs. When the control circuit operates in the second mode, a second combinatorial output is generated using a first subset of three of the set of six inputs and the first and second 2-LUTs. Additionally, when the control circuit operates in the second mode, a third combinatorial output is generated using a second subset of three of the set of six inputs and the third and fourth 2-LUTs, the first and second subsets being non-intersecting subsets of the set of six inputs.
    • 可分解逻辑元件包括第一,第二,第三和第四双输入查找表(2-LUT)。 每个2-LUT包括四个存储元件。 每个存储器元件被配置为保持一个数据位。 可分解逻辑元件还包括一组六个输入和被配置为在第一模式和第二模式下操作的控制电路。 当控制电路在第一模式下工作时,使用六个输入和第一,第二,第三和第四2-LUT中的四个产生第一组合输出。 当控制电路在第二模式下操作时,使用六组输入和第一和第二2-LUT组中的三个的第一子集来生成第二组合输出。 另外,当控制电路在第二模式下工作时,使用六组输入和第三和第四2-LUT组中的三个的第二子集来产生第三组合输出,第一和第二子集是不相交的子集 一组六个输入。
    • 9. 发明授权
    • Logic cell with improved multiplexer, barrel shifter, and crossbarring efficiency
    • 具有改进的多路复用器,桶形移位器和交叉开关效率的逻辑单元
    • US07119575B1
    • 2006-10-10
    • US10756206
    • 2004-01-12
    • James SchleicherBruce PedersenSinan Kaptanoglu
    • James SchleicherBruce PedersenSinan Kaptanoglu
    • H03K19/177
    • H03K19/17728H03K19/1737
    • Logic circuits that provide improved efficiency are described. In one general embodiment, this is accomplished by feeding outputs of LEs in the logic circuit to multiplexers that receive their select signals from input terminals of the LEs in the logic circuit. In one embodiment, each of the LEs provides one output signal. The first LE in the logic circuit provides an output signal to one multiplexer, while each of the remaining LEs in the logic circuit provides an output signal to two multiplexers. In another embodiment, each of the LEs provides two output signals. The first LE in the logic circuit provides two output signals to one multiplexer, while each of the remaining LEs in the logic circuit provides two output signals to four multiplexers.
    • 描述了提供更高效率的逻辑电路。 在一个一般实施例中,这通过将逻辑电路中的LE的输出馈送到从逻辑电路中的LE的输入端接收其选择信号的多路复用器来实现。 在一个实施例中,每个LE提供一个输出信号。 逻辑电路中的第一LE向一个多路复用器提供输出信号,而逻辑电路中的剩余LE中的每一个向两个多路复用器提供输出信号。 在另一个实施例中,每个LE提供两个输出信号。 逻辑电路中的第一个LE为一个多路复用器提供两个输出信号,而逻辑电路中的剩余LE中的每一个向四个多路复用器提供两个输出信号。