Device and method for generating digital signals coding each a value of an analogue signal
    2.
    发明公开
    Device and method for generating digital signals coding each a value of an analogue signal 有权
    装置和方法,用于生成数字信号的每个编码的模拟信号值

    公开(公告)号:EP1357668A1

    公开(公告)日:2003-10-29

    申请号:EP02291025.1

    申请日:2002-04-23

    IPC分类号: H03M1/12 G06K9/00

    摘要: The device comprises a number P of single analogue inputs (2) for receiving each an analogue signal having a frequency F from a sensor electrode (3) and a single digital output (4) for sequentially generating a number P of first digital signals coding each an amplitude value of one analogue signal. The device comprises a multiplexer (5) with a number M of multiple analogue inputs (6) comprising each a number N of single analogue inputs for receiving each one analogue signal, with a multiple analogue output (7) comprising a number N of second single analogue outputs, a phase sensitive amplifier (9) with a number N of single analogue inputs (10) tied each to a second single analogue output of the multiplexer (5), with a number N of single analogue outputs (11), a multiplexer (13) with a number N of single analogue inputs (14) tied each to a single analogue output (11) of the phase sensitive amplifier (9), with a single analogue output (15) and an analogue digital converter (17) with a single analogue input (18) tied to the single analogue output (15) of the multiplexer (13), with a single digital output (20) tied to the output (4) of the device (1).

    摘要翻译: 该装置包括的单个模拟输入(2)数为P,用于接收具有从传感器电极(3)和用于顺序的单个数字输出(4)产生第一数字信号编码的每个的数目P上的频率F的每个模拟信号的 振幅一个模拟信号的值。 该设备包括一个多路转换器(5)与(6),其包括单模拟输入各N个用于接收每一个模拟信号,具有多个模拟输出的多个模拟输入的数M(7),其包括第二单数N 模拟输出,相敏放大器(9)并列许多单个模拟输入N(10),每个所述多路复用器(5)的第二单模拟输出,具有数量为N单个模拟输出(11),多路复用器 (13)与数N的每个依赖于相敏放大器的单个模拟输出(11)单模拟输入(14)(9),具有单个模拟输出(15)和上模拟数字转换器(17)配有 绑到多路复用器(13)的所述单个模拟输出(15)的单个模拟输入(18),具有单个数字输出(20)连接到输出设备(4)(1)。