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    • 27. 发明申请
    • DELAY CIRCUITRY
    • 延时电路
    • WO2012121892A2
    • 2012-09-13
    • PCT/US2012/026257
    • 2012-02-23
    • ALTERA CORPORATIONLEWIS, David
    • LEWIS, David
    • H03K5/13H03K5/19
    • H03K5/13H03K5/1565H03L7/07H03L7/0805H03L7/0812
    • Integrated circuits with delay circuitry are provided. Delay circuitry may receive a clock signal and generate a corresponding delayed clock signal. The delayed clock signal generated using the delay circuitry may exhibit reduced duty cycle distortion in comparison to conventional systems. The delay circuitry may include a pulse generation circuit, a delay circuit, and a latching circuit. The pulse generation circuit may generate pulses in response to detecting rising edges or falling edges at its input. The pulses may propagate through the delay circuit. The latching circuit may generate (reconstruct) a delayed version of the clock signal in response to receiving the pulses at its control input. The delay circuitry may be used in duty cycle distortion correction circuitry, delay-locked loops, and other control circuitry.
    • 提供具有延迟电路的集成电路。 延迟电路可以接收时钟信号并产生相应的延迟时钟信号。 与常规系统相比,使用延迟电路产生的延迟时钟信号可能表现出减小的占空比失真。 延迟电路可以包括脉冲产生电路,延迟电路和锁存电路。 响应于在其输入端检测到上升沿或下降沿,脉冲发生电路可产生脉冲。 脉冲可以通过延迟电路传播。 响应于在其控制输入处接收到脉冲,锁存电路可以产生(重构)时钟信号的延迟版本。 延迟电路可用于占空比失真校正电路,延迟锁定环路和其它控制电路。
    • 28. 发明申请
    • CONFIGURABLE MULTI-GATE SWITCH CIRCUITRY
    • 可配置多门开关电路
    • WO2011047356A1
    • 2011-04-21
    • PCT/US2010/052968
    • 2010-10-15
    • ALTERA CORPORATIONLEWIS, David
    • LEWIS, David
    • H01H59/00
    • H01H45/14H01H59/00H01H59/0009
    • Integrated circuits with configurable multi-gate switch circuitry are provided. The switch circuitry may include switch control circuitry and an array of multi- gate switches. Each multi-gate switch may have first and second terminals, first and second gates, and a metal bridge. The metal bridge is attached to the first terminal. The metal bridge may extend over the gates and may hover above the second terminal in the off state. The metal bridge may have a tip that bends down to physically contact the second terminal in the on state. Switch control circuitry may provide row and column control signals to load desired switch states into the switch array. The switch array may be partitioned into groups of switches that form multiplexers. The multiplexers may be used in programmable circuits such as programmable logic device circuits.
    • 提供了具有可配置的多栅极开关电路的集成电路。 开关电路可以包括开关控制电路和多栅极开关阵列。 每个多栅极开关可以具有第一和第二端子,第一和第二栅极以及金属桥。 金属桥连接到第一个终端。 金属桥可以在门上延伸,并且可以在关闭状态下悬停在第二端子上方。 金属桥可以具有向下弯曲的尖端,以在接通状态下物理地接触第二端子。 开关控制电路可以提供行和列控制信号以将期望的开关状态加载到开关阵列中。 开关阵列可以被划分为形成多路复用器的开关组。 多路复用器可以用于诸如可编程逻辑器件电路的可编程电路中。