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公开(公告)号：US20030153293A1
公开(公告)日：2003-08-14
申请号：US10014760
申请日：2001-12-11
发明人： Kurt J. Richter , Jerry T. Bolton
IPC分类号： H04B001/10
CPC分类号： H03D7/165
摘要： Disclosed are systems and methods which utilize an image reject mixer in an out-of-band mixer application such as in a forward data channel frequency converter. For example, according to a preferred embodiment, an image reject mixer is utilized to provide a relatively high degree of image rejection with respect to an out-of-band signal, thereby relaxing the requirement for filtering in the signal path leading to the mixer circuitry. Preferred embodiments of the invention are substantially or fully implemented utilizing integrated circuit technology.
摘要翻译： 公开了在诸如前向数据信道变频器之类的带外混频器应用中利用图像抑制混频器的系统和方法。 例如，根据优选实施例，使用图像拒绝混合器来提供相对于带外信号的相对较高程度的图像抑制，从而放宽对通向混频器电路的信号路径中的滤波的要求 。 使用集成电路技术实质上或完全实现本发明的优选实施例。
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2.发明申请System and method for processing a common cable signal using a low-pass filter tap 有权使用低通滤波器抽头处理公共电缆信号的系统和方法公开(公告)号：US20040168200A1
公开(公告)日：2004-08-26
申请号：US10373536
申请日：2003-02-24
IPC分类号： H04N007/173 , H04N005/50
摘要： A method for processing an input signal is disclosed. The method includes receiving an input signal. The method also includes applying a first transfer function to the input signal to produce a first signal, wherein the first transfer function exhibits a high pass characteristic. The method further includes applying a second transfer function to the input signal to produce a second signal, the second transfer function exhibiting a low pass characteristic.
摘要翻译： 公开了一种处理输入信号的方法。 该方法包括接收输入信号。 该方法还包括将第一传递函数应用于输入信号以产生第一信号，其中第一传递函数呈现高通特性。 该方法还包括将第二传递函数应用于输入信号以产生第二信号，第二传递函数呈现低通特性。
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