METHOD AND APPARATUS FOR IMPROVING SIGNAL RECEPTION IN A RECEIVER
    1.
    发明申请
    METHOD AND APPARATUS FOR IMPROVING SIGNAL RECEPTION IN A RECEIVER 有权
    改善接收器信号接收的方法和装置

    公开(公告)号:US20070253511A1

    公开(公告)日:2007-11-01

    申请号:US11380892

    申请日:2006-04-28

    IPC分类号: H04L27/00

    CPC分类号: H04L25/062

    摘要: A method and apparatus for improving signal reception in a receiver (100) by performing all-channel and/or on-channel estimations on a received signal so as to predict future RF environments. The prediction is achieved through the use of one or more detector systems (122, 124) positioned to sample and detect predetermined signal metrics of the received signal (103) prior to analog-to-digital conversion (112) and subsequent post-processing (114). Future estimations of the channel condition are thus generated prior to the arrival of the actual samples (115) at a controller section (116). The detectors (122, 124) provide triggers (123, 125) to the controller (116) so that active stages (130) within the receiver (100) can be adjusted and scaled as needed via a serial port interface (SPI) (126) based on signal conditions.

    摘要翻译: 一种用于通过对接收到的信号进行全通道和/或通道上估计来改善接收器(100)中的信号接收以预测将来的RF环境的方法和装置。 通过使用一个或多个检测器系统(122,124)来实现预测,所述检测器系统定位成在模数转换(112)和随后的后处理(112)之后采样和检测接收信号(103)的预定信号度量, 114)。 因此,在实际样本(115)到达控制器部分(116)之前生成信道条件的未来估计。 检测器(122,124)向控制器(116)提供触发(123,125),使得可以根据需要通过串行端口接口(SPI)(126)来调整和缩放接收器(100)内的有源级(130) )基于信号条件。

    Method and apparatus for reducing phase imbalance in radio frequency signals
    2.
    发明申请
    Method and apparatus for reducing phase imbalance in radio frequency signals 审中-公开
    减少射频信号相位不平衡的方法和装置

    公开(公告)号:US20070135064A1

    公开(公告)日:2007-06-14

    申请号:US11298070

    申请日:2005-12-09

    IPC分类号: H04B1/04

    CPC分类号: H04B1/30

    摘要: Systems and method for reducing phase imbalance in radio frequency (RF) signals are disclosed. The phase imbalance in an RF signal may be due to phase imbalance in the local oscillator used for upconversion in a transmitter, and downconversion in a receiver. The RF signal is converted to a digital signal. The phase imbalance in the digital signal is measured by using a digital signal processor. The digital signal processor generates a compensation signal in response to the measurement of the phase imbalance. The compensation signal is used to generate a tuning signal to tune the local oscillator used for the upconversion or downconversion, thereby reducing the phase imbalance.

    摘要翻译: 公开了用于减少射频(RF)信号的相位不平衡的系统和方法。 RF信号中的相位不平衡可能是由于在发射机中用于上变频的本地振荡器的相位不平衡以及接收机中的下变频引起的。 RF信号被转换成数字信号。 通过使用数字信号处理器来测量数字信号中的相位不平衡。 数字信号处理器响应于相位不平衡的测量而产生补偿信号。 补偿信号用于产生调谐信号以调谐用于上变频或下变频的本地振荡器,从而减少相位不平衡。

    Receiver with chopper stabilization and method thereof
    3.
    发明申请
    Receiver with chopper stabilization and method thereof 有权
    具有斩波稳定的接收机及其方法

    公开(公告)号:US20060133550A1

    公开(公告)日:2006-06-22

    申请号:US11019750

    申请日:2004-12-21

    IPC分类号: H04B1/10

    摘要: A receiver (202) has a down-conversion receiver (304) for transforming a signal (201) from a first operating frequency to a second operating frequency that is lower than the first operating frequency, and a receiver filter (308) with chopper stabilization for filtering unwanted portions of the signal (306) at the second operating frequency and for generating a final filtered signal (203) at the second operating frequency.

    摘要翻译: 接收器(202)具有用于将信号(201)从第一工作频率变换到低于第一工作频率的第二工作频率的下变频接收器(304),以及具有斩波稳定的接收机滤波器(308) 用于在第二操作频率处滤除信号(306)的不需要的部分并且用于在第二操作频率产生最终滤波信号(203)。