公开(公告)号：US09935604B2

公开(公告)日：2018-04-03

申请号：US14791852

申请日：2015-07-06

Applicant: Xilinx, Inc.

Inventor： Fredric J. Harris ,  Christopher H. Dick

IPC: H03K9/10 ,  H04L27/22 ,  H03H7/12 ,  H03H17/02

CPC classification number: H03H7/12 ,  H03H17/0266

Abstract: An apparatus, and related method, relates generally to viable bandwidth filtering. In such an apparatus, an analysis filter bank has path filters associated with different bandwidths and is configured for filtering and transforming an input signal having a first bandwidth into a first interleaved output. A mask is coupled to the analysis filter bank and configured for masking at least one narrowband time signal of the first interleaved output. A synthesis filter bank is coupled to the mask. The synthesis filter bank is configured for transforming and filtering the masked first interleaved output to generate a second interleaved output for constructing an output signal having a second bandwidth. The second bandwidth is different than the first bandwidth for the variable bandwidth filtering.

公开(公告)号：US20170012598A1

公开(公告)日：2017-01-12

申请号：US14791852

申请日：2015-07-06

Applicant: Xilinx, Inc.

Inventor： Fredric J. Harris ,  Christopher H. Dick

IPC: H03H7/12

CPC classification number: H03H7/12 ,  H03H17/0266

Abstract: An apparatus, and related method, relates generally to viable bandwidth filtering. In such an apparatus, an analysis filter bank has path filters associated with different bandwidths and is configured for filtering and transforming an input signal having a first bandwidth into a first interleaved output. A mask is coupled to the analysis filter bank and configured for masking at least one narrowband time signal of the first interleaved output. A synthesis filter bank is coupled to the mask. The synthesis filter bank is configured for transforming and filtering the masked first interleaved output to generate a second interleaved output for constructing an output signal having a second bandwidth. The second bandwidth is different than the first bandwidth for the variable bandwidth filtering.

Abstract translation: 一种装置和相关方法一般涉及可行的带宽过滤。 在这种装置中，分析滤波器组具有与不同带宽相关联的路径滤波器，并且被配置用于将具有第一带宽的输入信号滤波和变换为第一交错输出。 掩模耦合到分析滤波器组并且被配置用于掩蔽第一交错输出的至少一个窄带时间信号。 合成滤波器组耦合到掩模。 合成滤波器组被配置用于对被屏蔽的第一交错输出进行变换和滤波，以产生用于构造具有第二带宽的输出信号的第二交错输出。 第二个带宽与可变带宽过滤的第一个带宽不同。

公开(公告)号：US20170012596A1

公开(公告)日：2017-01-12

申请号：US14791811

申请日：2015-07-06

Applicant: Xilinx, Inc.

Inventor： Fredric J. Harris ,  Christopher H. Dick

IPC: H03H7/01

CPC classification number: H03H17/0266

Abstract: Disclosed is apparatus and method to filter a signal. In such an apparatus, an outer polyphase filter is configured for receiving an input signal and for channelizing the input signal into outer filtered samples. An outer Inverse Fourier Transform block is coupled to the outer polyphase filter and configured for transforming the outer filtered samples into a coarse multi-path output. An inner polyphase filter is coupled to a path of the coarse multi-path output for receiving information therefrom and configured for generating inner filtered samples of the information obtained from the path. The inner filtered samples are for moving an edge of a passband associated with the outer filtered samples toward a center of the passband.

Abstract translation: 公开了对信号进行滤波的装置和方法。 在这种装置中，外部多相滤波器被配置用于接收输入信号并将输入信号通道化为外部滤波的采样。 外部逆傅立叶变换块耦合到外部多相滤波器并且被配置用于将外部滤波的样本变换为粗略多径输出。 内部多相滤波器耦合到粗多路径输出的路径，用于从其接收信息，并被配置用于生成从路径获得的信息的内部滤波样本。 内部滤波的样本用于将与外部滤波样本相关联的通带的边缘移动到通带的中心。

公开(公告)号：US09787289B2

公开(公告)日：2017-10-10

申请号：US14791811

申请日：2015-07-06

Applicant: Xilinx, Inc.

Inventor： Fredric J. Harris ,  Christopher H. Dick

IPC: H03H7/46 ,  H03H17/02

CPC classification number: H03H17/0266

Abstract: Disclosed is apparatus and method to filter a signal. In such an apparatus, an outer polyphase filter is configured for receiving an input signal and for channelizing the input signal into outer filtered samples. An outer Inverse Fourier Transform block is coupled to the outer polyphase filter and configured for transforming the outer filtered samples into a coarse multi-path output. An inner polyphase filter is coupled to a path of the coarse multi-path output for receiving information therefrom and configured for generating inner filtered samples of the information obtained from the path. The inner filtered samples are for moving an edge of a passband associated with the outer filtered samples toward a center of the passband.