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1. 发明公开

EP0763890A1 Matched filter 失效
标题翻译：信号过滤器
公开(公告)号：EP0763890A1
公开(公告)日：1997-03-19
申请号：EP96114839.2
申请日：1996-09-16
申请人： YOZAN INC. , SHARP KABUSHIKI KAISHA
发明人： Shou, Guoliang c/o Yozan. Inc , Zhou, Changming c/o Yozan. Inc , Yamamoto, Makoto c/o Yozan. Inc , Takatori, Sunao c/o Yozan. Inc
IPC分类号： H03H11/04 , H03H17/02
CPC分类号： H03H11/04 , H03H17/0254
摘要： The present invention has an object to provide a matched filter in which the total circuit can be refreshed without decreasing the calculation speed. In a matched filter according to the present invention, it is additionally settled that, i) a plurality of auxiliary sampling and holding circuits for holding a part of analog input voltage to be held in the main sampling and holding circuit ii) the second addition and subtraction circuit including a circuit equivalent to addition and subtraction circuit iii) a multiplexer for alternatively outputting an output of addition and subtraction circuit or the second addition and subtraction circuit. Consequently, a period is settled for stopping a sampling and holding circuit and addition and subtraction circuit in the main sampling and holding circuit; a refresh is performed in the period.
摘要翻译：本发明的目的是提供一种匹配滤波器，其中可以在不降低计算速度的情况下刷新总电路。在根据本发明的匹配滤波器中，另外设置：i）多个辅助采样和保持电路，用于保持待保持在主采样和保持电路中的模拟输入电压的一部分; ii）第二加法，包括相当于加法和减法电路的电路的减法电路iii）用于交替地输出加法和减法电路的输出或第二加法和减法电路的多路复用器。因此，在主采样保持电路中停止采样保持电路和加法和减法电路的周期; 在此期间进行刷新。

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