公开(公告)号：US06985523B2

公开(公告)日：2006-01-10

申请号：US10043775

申请日：2002-01-10

申请人： Richard Sims ,  Richard Clewer ,  Neal Becker ,  Yezdi Antia ,  J. Mark Steber

发明人： Richard Sims ,  Richard Clewer ,  Neal Becker ,  Yezdi Antia ,  J. Mark Steber

IPC分类号： H03K5/159

CPC分类号： H04L25/03133 ,  H04B7/18513 ,  H04L2025/03401 ,  H04L2025/03477 ,  H04L2025/03617

摘要： An apparatus for providing automatic gain control for use in a satellite terminal of a satellite communication system capable of transmitting a plurality of different modes of data. The apparatus includes a demodulator circuit having an analog to digital converter; a first variable attenuator having an attenuation value set on the basis of a measured power level of a predetermined data signal; and a second variable attenuator having an attenuation value set on the basis of the mode of data being received by the satellite terminal, where each of the data modes have a corresponding predetermined attenuation value associated therewith which is utilized as the attenuation value of the second variable attenuator when the satellite terminal receives the data mode.

公开(公告)号：US06904273B2

公开(公告)日：2005-06-07

申请号：US10043668

申请日：2002-01-10

申请人： J. Mark Steber ,  Richard Clewer ,  Kumud Patel ,  Bala Subramaniam

发明人： J. Mark Steber ,  Richard Clewer ,  Kumud Patel ,  Bala Subramaniam

IPC分类号： H03G3/30 ,  H04B1/06

CPC分类号： H03G3/3052

摘要： An apparatus for providing automatic gain control for use in a satellite terminal of a satellite communication system capable of transmitting a plurality of different modes of data. The apparatus includes a demodulator circuit having an analog to digital converter; a first variable attenuator having an attenuation value set on the basis of a measured power level of a predetermined data signal; and a second variable attenuator having an attenuation value set on the basis of the mode of data being received by the satellite terminal, where each of the data modes have a corresponding predetermined attenuation value associated therewith which is utilized as the attenuation value of the second variable attenuator when the satellite terminal receives the data mode.

摘要翻译： 一种用于提供自动增益控制的装置，用于能够发送多种不同数据模式的卫星通信系统的卫星终端。 该装置包括具有模数转换器的解调器电路; 第一可变衰减器，其具有基于预定数据信号的测量功率电平设置的衰减值; 以及第二可变衰减器，其具有基于由卫星终端接收的数据模式设置的衰减值，其中每个数据模式具有与其相关联的相应的预定衰减值，其被用作第二变量的衰减值 卫星终端接收数据模式时的衰减器。