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    • 56. 发明申请
    • Circuit For Digitizing A Sum Of Signals
    • 数字化信号总和的电路
    • US20140070972A1
    • 2014-03-13
    • US14022351
    • 2013-09-10
    • IMECKatholieke Universiteit Leuven, K.U. LEUVEN R&DStichting IMEC Nederland
    • Alonso MorgadoSerena PorrazzoFrancesco Cannillo
    • H03M3/00
    • H03M3/32H03M3/426H03M3/452
    • A circuit for digitizing a sum of a first input signal and a plurality of second input signals has a passive adder that sums the second input signals and outputs a summation signal and a multi-bit quantizer circuit. The quanitzer circuit compares the summation signal at a first comparator input with a signal at a second comparator input, which is derived from the first input signal and has an appropriate polarity so that the difference between the summation signal and the signal at the second comparator input is indicative of the sum of the first input signal and the plurality of second input signals. The comparator also produces a comparator output signal based on the sum of the first input signal and the plurality of second input signals. The quantizer circuit also has a control logic block for determining a multi-bit representation of the sum from the comparator output signal.
    • 用于对第一输入信号和多个第二输入信号的和进行数字化的电路具有对第二输入信号求和并输出求和信号和多位量化器电路的无源加法器。 量化器电路将第一比较器输入端的求和信号与第二比较器输入端的信号进行比较,该第二比较器输入端从第一输入信号导出并具有适当的极性,使得求和信号与第二比较器输入端的信号之间的差值 表示第一输入信号和多个第二输入信号的和。 比较器还基于第一输入信号和多个第二输入信号的和产生比较器输出信号。 量化器电路还具有用于确定来自比较器输出信号的和的多位表示的控制逻辑块。