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公开(公告)号:US20100321072A1
公开(公告)日:2010-12-23
申请号:US12680011
申请日:2008-11-19
申请人: Johan Bauwelinck , Tine De Ridder , Cedric Melange , Peter Ossieur , Bart Baekelandt , Xing Zhi Qiu , Jan Vandewege
发明人: Johan Bauwelinck , Tine De Ridder , Cedric Melange , Peter Ossieur , Bart Baekelandt , Xing Zhi Qiu , Jan Vandewege
CPC分类号: H04L7/042 , H04L5/22 , H04L7/0041 , H04L25/062
摘要: The present invention is related to a circuit (1) for detecting activity in a burst-mode receiver. The circuit is arranged for receiving an input signal (2) comprising a preamble. The circuit comprises a differentiator (11) for detecting signal transitions in the input signal (2) whereby the preamble comprises information on operating said differentiator (11). In a preferred embodiment, the information is a time constant. The circuit further comprises an integrator (12) arranged for being fed with an output of the differentiator. The resulting signal is compared to a reference (16). If this reference is crossed, activity is detected. In an embodiment a front-end circuit is presented comprising next to a circuit for detecting activity, a reset circuit arranged for resetting the front-end circuit and a clock phase alignment circuit arranged for recovering the phase.
摘要翻译: 本发明涉及一种用于检测突发模式接收机中的活动的电路(1)。 电路被布置成用于接收包括前导码的输入信号(2)。 电路包括用于检测输入信号(2)中的信号转换的微分器(11),由此前置码包括关于操作所述微分器(11)的信息。 在优选实施例中,信息是时间常数。 电路还包括积分器(12),其被布置为馈送微分器的输出。 将所得信号与参考(16)进行比较。 如果该引用被越过,则检测到活动。 在一个实施例中,提供了前端电路,其包括用于检测活动的电路,用于复位前端电路的复位电路和布置成恢复相位的时钟相位对准电路。
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公开(公告)号:US20080310456A1
公开(公告)日:2008-12-18
申请号:US12101108
申请日:2008-04-10
申请人: Johan Bauwelinck , Els De Backer , Cedric Melange , Jan Vandewege
发明人: Johan Bauwelinck , Els De Backer , Cedric Melange , Jan Vandewege
IPC分类号: H04J1/02
CPC分类号: H04B3/54 , H04B2203/5416 , H04B2203/5425 , H04B2203/5491
摘要: The present disclosure provides a system for receiving signals over a power line distribution. Typically, problems of noise and interference are being solved at the receiver side. Systems of the present disclosure, however, are not limited to the receiver-side solution. Systems according to the present disclosure may also be used at the transmitter side. The receiver comprises a high pass filter, a preselect crossover filter, and an analog front-end receiver architecture.
摘要翻译: 本公开提供了一种用于通过电力线分布接收信号的系统。 通常,接收机端正在解决噪声和干扰问题。 然而,本公开的系统不限于接收机侧解决方案。 根据本公开的系统也可以在发射机侧使用。 接收机包括高通滤波器,预选交叉滤波器和模拟前端接收器架构。
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