公开(公告)号：US09413476B2

公开(公告)日：2016-08-09

申请号：US14451359

申请日：2014-08-04

Applicant: Entropic Communications, Inc.

Inventor： Branislav Petrovic ,  Dale Hancock ,  Jeremy Goldblatt ,  Keith Bargroff

IPC: H04H40/90 ,  H04B1/28 ,  H04B1/16

CPC classification number: H04H40/90 ,  H04B1/16 ,  H04B1/28

Abstract: An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.

Abstract translation: 一个室外卫星接收单元（ODU）接收几个独立的卫星信号，用开关矩阵选择两个信号，将两个信号下变频成带高信号的带状信号，并将同频带上的带状信号输出到接收机 单位。 可以选择两个或更多个的几个卫星信号并输出​​到独立的接收机单元。 在接收的射频（RF）下执行信号选择，并且通过单个下变频步骤对中频（IF）执行带堆叠。 通过在IF输出组合之前，可以通过使用频率敏捷下变频器和带通滤波器来实现来自多个卫星的多于两个信道的相同电缆上的信道堆叠。 缓慢的转换开关使切换时的信号干扰最小化，并将输入阻抗维持在恒定值。

公开(公告)号：US20150162998A1

公开(公告)日：2015-06-11

申请号：US14451359

申请日：2014-08-04

Applicant: Entropic Communications, Inc.

Inventor： Branislav A. Petrovic ,  Dale Hancock ,  Jeremy Goldblatt ,  Keith Bargroff

IPC: H04H40/90 ,  H04B1/16

CPC classification number: H04H40/90 ,  H04B1/16 ,  H04B1/28

Abstract: An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.

Abstract translation: 一个室外卫星接收单元（ODU）接收几个独立的卫星信号，用开关矩阵选择两个信号，将两个信号下变频成带高信号的带状信号，并将同频带上的带状信号输出到接收机 单位。 可以选择两个或更多个的几个卫星信号并输出​​到独立的接收机单元。 在接收的射频（RF）下执行信号选择，并且通过单个下变频步骤对中频（IF）执行带堆叠。 通过在IF输出组合之前，可以通过使用频率敏捷下变频器和带通滤波器来实现来自多个卫星的多于两个信道的相同电缆上的信道堆叠。 缓慢的转换开关使切换时的信号干扰最小化，并将输入阻抗维持在恒定值。