Filter for time division multiplex filtering of a plurality of data trains, and operating methods therefor
    1.
    发明授权
    Filter for time division multiplex filtering of a plurality of data trains, and operating methods therefor 失效
    用于多个数据列的时分多路复用滤波的滤波器及其操作方法

    公开(公告)号:US06532483B1

    公开(公告)日:2003-03-11

    申请号:US09536169

    申请日:2000-03-27

    IPC分类号: G06F1710

    摘要: A filter for filtering n data trains by time division multiplexing includes data channels for receiving data train values, registers subdivided into n groups for buffer storage of the data train values or derived values, and adders each having inputs. Each of the n groups is connected to one of the data channels. The adders and the registers alternatively connect to form a chain. The first input of respective adders connected upstream of a respective register of an ith group (0≦i≦n−1) has a connection to respective data channels assigned to the ith group, and the second input is connected to a respective register of a group having a number (i−1)mod n without an intervening register of another group. The filter is used to parallelly decimate data trains by a common factor. A filter configuration includes the filter and two multipliers. A method is also provided.

    摘要翻译: 用于通过时分复用滤波n个数据列的滤波器包括用于接收数据序列值的数据信道,被分成n组的寄存器,用于数据序列值或导出值的缓冲存储,以及每个具有输入的加法器。 n组中的每一个连接到其中一个数据通道。 加法器和寄存器交替连接形成链。 连接在第i组的相应寄存器的上游的相应加法器的第一输入(0 <= i <= n-1)具有与分配给第i组的相应数据通道的连接,并且第二输入连接到相应的寄存器 具有数字(i-1)mod n的组,而没有另一组的中间寄存器。 该滤波器用于通过共同因素并行抽取数据列。 滤波器配置包括滤波器和两个乘法器。 还提供了一种方法。

    Signal reception and processing method for cordless communications systems
    2.
    发明授权
    Signal reception and processing method for cordless communications systems 有权
    无绳通信系统的信号接收和处理方法

    公开(公告)号:US07116964B2

    公开(公告)日:2006-10-03

    申请号:US10628788

    申请日:2003-07-28

    IPC分类号: H04B1/10

    CPC分类号: H04B1/0003 H04B1/30

    摘要: Channel selection of a received signal is first of all carried out, in the process, by way of an analog channel selection filter. The signal is then converted to a digital discrete-time and discrete-value signal. Finally, the continuous-time and continuous-value signal profile is determined on the basis of a mathematical reconstruction using the zero crossings {ti} and the phase values {φ(ti)=ki·π/2, kiεN0}, with a mathematical reconstruction algorithm using a function system {φ(t−k)}.

    摘要翻译: 接收信号的信道选择首先在模拟信道选择滤波器的过程中进行。 然后将信号转换为数字离散时间和离散值信号。 最后,连续时间和连续值信号轮廓是基于使用过零点(t 0)的数学重建和相位值{ph i(t i i i) 利用使用函数系统{phi(i)的函数系统的数学重建算法,使用数学重建算法, tk。

    Receiver circuit, in particular for a mobile radio
    3.
    发明授权
    Receiver circuit, in particular for a mobile radio 有权
    接收机电路,特别是用于移动无线电

    公开(公告)号:US07336717B2

    公开(公告)日:2008-02-26

    申请号:US10384996

    申请日:2003-03-10

    IPC分类号: H04L5/12 H04L23/02

    CPC分类号: H03D1/2245

    摘要: A radio receiver with a low intermediate frequency has a first mixer stage that can be fed with a modulated input signal and at whose output a complex intermediate frequency signal can be derived. Connected downstream of the first mixer stage is a limiting amplifier at whose output the intermediate frequency signal is present in a discrete-value and continuous-time fashion. A sampling device, for sampling the intermediate frequency signal, and a digital demodulator unit are connected to the output of this limiter. The demodulated input signal can be derived at the output of this digital demodulator unit. The present radio receiver requires a low chip area in conjunction with low power consumption, but offers a high sensitivity and accuracy based on the digitally implemented demodulation.

    摘要翻译: 具有低中频的无线电接收机具有可以馈送调制输入信号的第一混频器级,并且在其输出端可以导出复合中频信号。 连接在第一混频器级的下游是限幅放大器,其输出中间频率信号以离散值和连续时间方式存在。 用于采样中频信号的采样装置和数字解调器单元连接到该限幅器的输出。 解调输入信号可以在该数字解调器单元的输出端导出。 本无线电接收机需要低功耗的低芯片面积,但是基于数字实现的解调提供了高灵敏度和精度。

    Circuit configuration for a multistandard communications terminal
    4.
    发明授权
    Circuit configuration for a multistandard communications terminal 有权
    多标准通信终端的电路配置

    公开(公告)号:US06697438B2

    公开(公告)日:2004-02-24

    申请号:US09897283

    申请日:2001-07-02

    IPC分类号: H03K900

    CPC分类号: H04B1/406 H04B1/30

    摘要: A circuit configuration for a multistandard communications terminal has, for the reception of radio signals, a radio frequency component with a receive conversion stage and a signal-processing circuit connected downstream of the radio frequency component. The signal-processing circuit has an A/D converter and a digital filter. The pass-band of the digital filter is variable. In operation, the pass-band is set according to a selected system standard of the received radio signals.

    摘要翻译: 用于多标准通信终端的电路配置具有用于接收无线电信号的具有接收转换级的射频分量和连接在射频分量下游的信号处理电路。 信号处理电路具有A / D转换器和数字滤波器。 数字滤波器的通带是可变的。 在操作中,根据所接收的无线电信号的所选系统标准设置通带。