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    Programmable filter circuits and methods
    1.
    发明公开
    Programmable filter circuits and methods 有权
    ProgrammierbareFilterkreisläufeund Verfahren

    公开(公告)号：EP2081294A1

    公开(公告)日：2009-07-22

    申请号：EP08000773.5

    申请日：2008-01-16

    申请人： WiLinx, Inc.

    发明人： Bagheri, Rahim ,  Mirzaei, Ahmad

    IPC分类号： H03H15/02

    CPC分类号： H03H15/02

    摘要： Embodiments of the present invention include programmable filter circuits and methods. In one embodiment, the present invention includes a programmable filter for filtering an input signal x(t) comprising a storage element (401) for storing a plurality of digital values representing a discrete time window function, and a plurality of filter channels, each channel comprising a multiplying digital-to-analog converter (402) having a plurality of digital inputs (N) coupled to the storage element and an analog input for receiving said input signal to be filtered, at least one capacitor (403) having at least one terminal coupled to an output of the multiplying digital-to-analog converter, and a sampling device (404) coupled between the at least one terminal of the at least one capacitor and an output of the filter. In another embodiment, the present invention includes a software defined radio.

    摘要翻译： 本发明的实施例包括可编程滤波器电路和方法。 在一个实施例中，本发明包括一个可编程滤波器，用于对输入信号x（t）进行滤波，该输入信号包括存储元件（401），用于存储表示离散时间窗函数的多个数字值，以及多个滤波器通道，每个通道 包括具有耦合到所述存储元件的多个数字输入（N）和用于接收所述待滤波的所述输入信号的模拟输入的乘法数模转换器（402），至少一个电容器（403）具有至少一个 耦合到所述乘法数模转换器的输出的一个端子，以及耦合在所述至少一个电容器的所述至少一个端子和所述滤波器的输出端之间的采样装置（404）。 在另一个实施例中，本发明包括软件定义的无线电装置。

    Charge domain signal filter
    3.
    发明公开
    Charge domain signal filter 失效
    电荷域信号滤波器

    公开(公告)号：EP0813299A3

    公开(公告)日：1999-12-01

    申请号：EP97304058.7

    申请日：1997-06-11

    申请人： G.D.S. CO., LTD. ,  Nagazumi, Yasuo

    发明人： Nagazumi, Yasuo

    IPC分类号： H03H15/02

    CPC分类号： H03H15/02

    摘要： The object of the present invention is to obtain a charge domain signal filter by composing an digital filter circuit with analog/digital mixed circuit and by introducing the analog processing into the process of multiplication and addition consuming the most of the electric power so as to reduce the total power consumption. The present invention is composed of at least one AD converter; at least one reference charge supply unit; a coefficient supply unit for supplying coefficient signals; a plurality of DA converters acting in a charge domain for receiving digital signal outputs supplied from said AD converter and said coefficient signal supply unit, and for performing the multiplication type DA conversion using, as a reference signal, a reference charge packet generated by said reference charge supply unit; and one circuit of analog shift register composed of N stages of charge transfer devices.

    Charge domain signal filter
    4.
    发明公开
    Charge domain signal filter 失效
    Ladungsdomänensignalfilter

    公开(公告)号：EP0813299A2

    公开(公告)日：1997-12-17

    申请号：EP97304058.7

    申请日：1997-06-11

    申请人： G.D.S. CO., LTD. ,  Nagazumi, Yasuo

    发明人： Nagazumi, Yasuo

    IPC分类号： H03H15/02

    CPC分类号： H03H15/02

    摘要： The object of the present invention is to obtain a charge domain signal filter by composing an digital filter circuit with analog/digital mixed circuit and by introducing the analog processing into the process of multiplication and addition consuming the most of the electric power so as to reduce the total power consumption.
    The present invention is composed of at least one AD converter; at least one reference charge supply unit; a coefficient supply unit for supplying coefficient signals; a plurality of DA converters acting in a charge domain for receiving digital signal outputs supplied from said AD converter and said coefficient signal supply unit, and for performing the multiplication type DA conversion using, as a reference signal, a reference charge packet generated by said reference charge supply unit; and one circuit of analog shift register composed of N stages of charge transfer devices.

    摘要翻译： 本发明的目的是通过与模拟/数字混合电路组合数字滤波器电路并通过将模拟处理引入消耗大部分电力的乘法和加法处理来获得电荷域信号滤波器，以便减少 总功耗。 本发明由至少一个AD转换器构成; 至少一个参考电荷供应单元; 用于提供系数信号的系数提供单元; 用于接收从所述AD转换器和所述系数信号提供单元提供的数字信号输出的多个DA转换器，并且用于使用由所述参考信号产生的参考电荷分组作为参考信号来执行乘法型DA转换 充电单元; 以及由N级电荷转移装置组成的模拟移位寄存器的一个电路。

    Filtre transversal à transfert de charge
    5.
    发明公开
    Filtre transversal à transfert de charge 失效
    横向电荷转移过滤器。

    公开(公告)号：EP0093034A1

    公开(公告)日：1983-11-02

    申请号：EP83400724.7

    申请日：1983-04-12

    申请人： THOMSON-CSF

    发明人： Beal, Gérard ,  Coutures, Jean-Louis

    IPC分类号： H03H15/02 ,  G11C27/02

    CPC分类号： G11C27/04 ,  H03H15/02

    摘要： Dans ce filtre comportant N capacités du type MOS disposées sur un même substrat semiconducteur (1) et munies d'électrodes, (14, 15, 18, 19), l'électrode d'une capacité MOS sur deux ayant ses extrémités recouvertes par les extrémités des électrodes des deux capacités MOS adjacentes, les N capacités MOS sont disposées en n rangées, et les sens de transfert de charge dans deux rangées adjacentes sont opposés, ce qui permet de compenser les effets dus aux décalages des masques utilisés pour la fabrication des fitres transversaux à transfert de charge.
    Application aux filtres transversaux à transfert de charge.

    Coefficient weighting for CTD transversal filters
    8.
    发明公开
    Coefficient weighting for CTD transversal filters 失效
    CTD横向过滤器的系数称重

    公开(公告)号：EP0049972A3

    公开(公告)日：1983-03-16

    申请号：EP81304491

    申请日：1981-09-29

    申请人： MOTOROLA, INC.

    发明人： Huntington, Robert C.

    IPC分类号： H03H15/02

    CPC分类号： H03H15/02

    摘要： Coefficient weighting in split electrode, Charge Transfer Devices (CTD's) is improved by connecting only the signal bearing segment (16, 19) of each sense electrode to a sense bus. The remaining segment (17, 18) is connected to a neutral bus (C).

    摘要翻译： 通过将每个感测电极的信号承载部分（16,19）连接到感测总线，可以改善分离电极，电荷转移装置（CTD）中的系数加权。 剩余段（17,18）连接到中性母线（C）。