公开(公告)号：CN105871348A

公开(公告)日：2016-08-17

申请号：CN201610317124.1

申请日：2016-05-12

Applicant: 中国电子科技集团公司第四十一研究所

Inventor： 薛沛祥 ,  宋志刚 ,  王建中 ,  唐丽萍 ,  缪国锋 ,  陈庆磊

IPC: H03G3/30

CPC classification number: H03G3/3026 ,  H03G2201/504

Abstract: 本发明公开了基于自校准和动态增益调整的低噪宽压音频信号调理电路，包括音频信号分析通道和音频信号发生通道，音频信号分析通道和音频信号发生通道通过设置多选一开关来实现连通或者断开；所述音频信号分析通道中的音频信号分析电路包括多级增益控制电路，将幅度较大信号逐级衰减，将幅度较小信号逐级放大，直到将信号幅度调整到设定的大小，在ADC采样的范围内。本发明提出的音频信号自校准技术，使得音频分析仪自身产生音频信号，经音频信号分析通道采集后，又回到音频分析仪软件，形成闭环校准，可较彻底的消除音频信号分析通道的误差，抑制噪声；这是诸如差分输入、精密电阻网络和屏蔽等传统技术抑制噪声所不能比拟的。

公开(公告)号：US20180062592A1

公开(公告)日：2018-03-01

申请号：US15441500

申请日：2017-02-24

Applicant: QUALCOMM Incorporated

Inventor： Marco CASSIA ,  Jose CABANILLAS

IPC: H03F3/217 ,  H03F3/19 ,  H03F1/56

CPC classification number: H03F3/217 ,  H03F1/0277 ,  H03F1/0288 ,  H03F1/56 ,  H03F1/565 ,  H03F3/19 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/72 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/408 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/21103 ,  H03F2203/21136 ,  H03F2203/21139 ,  H03F2203/21175 ,  H03F2203/7215 ,  H03F2203/7221 ,  H03F2203/7236 ,  H03G1/00 ,  H03G1/0088 ,  H03G3/3042 ,  H03G2201/504 ,  H03G2201/506 ,  H04B1/40 ,  H04B1/401

Abstract: A power amplifier circuit, including: an input node configured to receive a radio frequency (RF) signal; an output node configured to output an amplified RF signal; a main path switchably coupled between the input node and the output node, and including a first plurality of amplification stages to generate a first amplified RF signal; a bypass path switchably coupled between the input node and the output node, and including at least one second amplification stage to generate a second amplified RF signal; and a coupling switch configured to reuse at least a portion of the bypass path to drive the main path to generate a third amplified RF signal.

公开(公告)号：US07133466B2

公开(公告)日：2006-11-07

申请号：US10999207

申请日：2004-11-24

Applicant: Satoshi Maruyama

Inventor： Satoshi Maruyama

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC classification number: H03F1/3241 ,  H03F1/3247 ,  H03F1/52 ,  H03F3/211 ,  H03G1/0088 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/504

Abstract: The present invention provides an amplifying apparatus including, two amplifiers for receiving input signals in common and for outputting their respective amplified signals, a combiner for combining the output signals of the two amplifiers and for outputting a combined signal, the amplifying apparatus which inhibit the distortion component in the output of amplifiers in the transition state. This amplifying apparatus comprises, a predistortion unit for determining a distortion compensation component based on the output of the combiner and for predistorting the input based on the determined distortion compensation component, and a gain control unit for attenuating the inputs to set lower than in the steady state by reducing the gain in the transition from two amplifier operation to one amplifier operation, or in the transition from one amplifier operation to two amplifier operation, or at the time of removal or attachment the amplifiers.

Abstract translation: 本发明提供了一种放大装置，包括两个用于共同接收输入信号并用于输出它们各自的放大信号的放大器，用于组合两个放大器的输出信号并用于输出组合信号的组合器，抑制失真的放大装置 放大器输出中的分量处于过渡状态。 该放大装置包括：预失真单元，用于基于组合器的输出确定失真补偿分量，并且用于基于所确定的失真补偿分量对输入进行预失真;以及增益控制单元，用于将输入衰减成低于稳态 通过减小从两个放大器操作到一个放大器操作的转变中的增益，或者在从一个放大器操作到两个放大器操作的转换中，或者在去除或附接放大器时的增益。

公开(公告)号：US20050141640A1

公开(公告)日：2005-06-30

申请号：US10999207

申请日：2004-11-24

Applicant: Satoshi Maruyama

Inventor： Satoshi Maruyama

IPC: H03F1/32 ,  H03F1/52 ,  H03F3/21 ,  H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04K1/02

CPC classification number: H03F1/3241 ,  H03F1/3247 ,  H03F1/52 ,  H03F3/211 ,  H03G1/0088 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/504

Abstract: The present invention provides an amplifying apparatus including, two amplifiers for receiving input signals in common and for outputting their respective amplified signals, a combiner for combining the output signals of the two amplifiers and for outputting a combined signal, the amplifying apparatus which inhibit the distortion component in the output of amplifiers in the transition state. This amplifying apparatus comprises, a predistortion unit for determining a distortion compensation component based on the output of the combiner and for predistorting the input based on the determined distortion compensation component, and a gain control unit for attenuating the inputs to set lower than in the steady state by reducing the gain in the transition from two amplifier operation to one amplifier operation, or in the transition from one amplifier operation to two amplifier operation, or at the time of removal or attachment the amplifiers.

Abstract translation: 本发明提供了一种放大装置，包括两个用于共同接收输入信号并用于输出它们各自的放大信号的放大器，用于组合两个放大器的输出信号并用于输出组合信号的组合器，抑制失真的放大装置 放大器输出中的分量处于过渡状态。 该放大装置包括：预失真单元，用于基于组合器的输出确定失真补偿分量，并且用于基于所确定的失真补偿分量来预失真输入;以及增益控制单元，用于将输入衰减成低于稳态 通过减小从两个放大器操作到一个放大器操作的转变中的增益，或者在从一个放大器操作到两个放大器操作的转换中，或者在去除或附接放大器时的增益。

公开(公告)号：US20030034839A1

公开(公告)日：2003-02-20

申请号：US09931737

申请日：2001-08-20

Inventor： Peter John Poggi ,  Tim Dittmer ,  George Cabrera

IPC: H03G003/20

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply to an amplifier in an electrical circuit is dynamically controlled through the use of a lookup table responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

Abstract translation: 通过使用响应于电路的一个或多个操作条件的查找表来动态地控制电路中的放大器的可变电源。 查找表由一个或多个操作条件索引，并确定要施加到放大器的输入信号的放大量。 本发明的一个实施例包括一种电视发射机电路，其包括能够放大可变频率COFDM或8VSB输入信号的功率放大器电路，其中通过使用查找表作为函数来动态地控制施加到输入信号的放大量 输入信号的频率。

公开(公告)号：EP1428313A2

公开(公告)日：2004-06-16

申请号：EP02759314.4

申请日：2002-08-12

Applicant: HARRIS CORPORATION

Inventor： POGGI, Peter, John ,  DITTMER, Timothy ,  CABRERA, George

IPC: H03F3/04

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

公开(公告)号：EP1428313B1

公开(公告)日：2010-07-14

申请号：EP02759314.4

申请日：2002-08-12

Applicant: HARRIS CORPORATION

Inventor： POGGI, Peter, John ,  DITTMER, Timothy ,  CABRERA, George

IPC: H03F3/04

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

公开(公告)号：EP1428313A4

公开(公告)日：2006-06-07

申请号：EP02759314

申请日：2002-08-12

Applicant: HARRIS CORP

Inventor： POGGI PETER JOHN ,  DITTMER TIMOTHY ,  CABRERA GEORGE

IPC: H03F1/02 ,  H03F3/21 ,  H03G3/00 ,  H03G3/30 ,  H03F3/04

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

公开(公告)号：WO2003017468A2

公开(公告)日：2003-02-27

申请号：PCT/US2002/025349

申请日：2002-08-12

Applicant: HARRIS CORPORATION

Inventor： POGGI, Peter, John ,  DITTMER, Timothy ,  CABRERA, George

IPC: H03F

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply to an amplifier in an electrical circuit is dynamically controlled through the use of a lookup table responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

Abstract translation: 响应于电路的一个或多个操作条件，通过使用查找表来动态控制到电路中的放大器的可变电源。 查找表由一个或多个操作条件索引，并确定要应用于放大器的输入信号的放大量。 本发明的一个实施例包括电视发射机电路，该电视发射机电路包括能够放大可变频率COFDM或8VSB输入信号的功率放大器电路，其中通过使用查找表来动态控制施加到输入信号的放大量，作为 输入信号的频率。

公开(公告)号：WO03017468A3

公开(公告)日：2003-08-21

申请号：PCT/US0225349

申请日：2002-08-12

Applicant: HARRIS CORP

Inventor： POGGI PETER JOHN ,  DITTMER TIMOTHY ,  CABRERA GEORGE

IPC: H03F1/02 ,  H03F3/21 ,  H03G3/00 ,  H03G3/30 ,  H03F3/04

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/0244 ,  H03F1/0277 ,  H03F3/211 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/504 ,  H03G2201/508 ,  H03G2201/702

Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

Abstract translation: 通过使用响应于电路的一个或多个操作条件的查找表（14）来动态地控制到电路中的放大器（10）的可变电源（12）。 查找表由一个或多个操作条件索引，并确定要施加到放大器的输入信号的放大量。 本发明的一个实施例包括电视发射机电路，其包括能够放大可变频率COFDM或8VSB输入信号（11）的功率放大器电路，其中通过使用查找表作为输入信号的放大量被动态地控制 输入信号的频率的函数。