会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Look-up table circuits and field programmable gate array
    • 查找表电路和现场可编程门阵列
    • US08373437B2
    • 2013-02-12
    • US13238020
    • 2011-09-21
    • Hideyuki SugiyamaTetsufumi TanamotoTakao MarukameMizue IshikawaTomoaki InokuchiYoshiaki Saito
    • Hideyuki SugiyamaTetsufumi TanamotoTakao MarukameMizue IshikawaTomoaki InokuchiYoshiaki Saito
    • G06F7/38H03K19/173
    • H03K19/177
    • A look-up table circuit according to an embodiment includes: a variable resistance circuit including variable resistance devices and selecting a variable resistance device from the variable resistance devices based on an input signal; a reference circuit having a resistance value between the largest resistance value and the smallest resistance value of the variable resistance circuit; a first n-channel MOSFET including a source connected to a terminal of the variable resistance circuit and a gate connected to a drain; a second n-channel MOSFET including a source connected to a terminal of the reference circuit and a gate connected to the gate of the first n-channel MOSFET; a first current supply circuit to supply a current to the variable resistance circuit; a second current supply circuit to supply a current to the reference circuit; and a comparator comparing voltages at a first input terminal and a second input terminal.
    • 根据实施例的查找表电路包括:可变电阻电路,包括可变电阻器件,并且基于输入信号从可变电阻器件中选择可变电阻器件; 参考电路,其具有可变电阻电路的最大电阻值和最小电阻值之间的电阻值; 第一n沟道MOSFET,其包括连接到可变电阻电路的端子的源极和连接到漏极的栅极; 第二n沟道MOSFET,其包括连接到参考电路的端子的源极和连接到第一n沟道MOSFET的栅极的栅极; 用于向可变电阻电路提供电流的第一电流供应电路; 第二电流供应电路,用于向参考电路提供电流; 以及比较器,用于比较第一输入端和第二输入端的电压。