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81.发明申请Device and method for improving the carrier-to-noise ratio for a receiver with diversity 有权用于提高具有多样性的接收机的载波噪声比的装置和方法公开(公告)号：US20070165758A1
公开(公告)日：2007-07-19
申请号：US11651769
申请日：2007-01-10
IPC分类号： H04L1/02
CPC分类号： H04B1/126 , H04B7/0857
摘要： The method of improving the carrier-to-noise ratio for a receiver with diversity, and the associated device, consists, after extracting, by phase shifting, the noise component of the signals to be demodulated, in optimizing the cancellation of the useful component via a feedback loop acting on the phase shifter and in summing the noise component in phase and in phase opposition with these signals to improve the carrier-to-noise ratio.
摘要翻译： 提高具有分集能力的接收机的载噪比的方法以及相关设备在通过相移提取要解调的信号的噪声分量之后，在优化有用分量的消除通过 一个作用在移相器上的反馈回路，并且与这些信号相位和相位相反的噪声分量相加，以提高载波噪声比。
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公开(公告)号：US20060087368A1
公开(公告)日：2006-04-27
申请号：US10540824
申请日：2003-12-17
IPC分类号： H03K5/00
CPC分类号： H03J7/04
摘要： The invention proposes a filtering device having a frequency response which is symmetrical, using asymmetrical filters coupled by transposition means. The advantageous characteristics of the asymmetrical filters are retained and the faults associated with the asymmetry are eliminated. The asymmetrical filters are, for example, quartz filters. The invention also proposes an external transmission and reception unit, using the filtering device with the application of the filtering method.
摘要翻译： 本发明提出一种具有对称频率响应的滤波装置，使用通过转置装置耦合的非对称滤波器。 保留不对称滤波器的有利特性，消除与不对称相关的故障。 不对称滤波器例如是石英滤波器。 本发明还提出了一种使用过滤装置应用过滤方法的外部发送和接收单元。
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