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公开(公告)号：US20050221779A1
公开(公告)日：2005-10-06
申请号：US11093416
申请日：2005-03-30
Applicant: Taiwa Okanobu
Inventor： Taiwa Okanobu
IPC: H03G3/20 , H03G1/00 , H03G3/30 , H03G7/00 , H04B1/06 , H04B1/10 , H04B1/16 , H04B7/00 , H04B17/40 , H04B17/02
CPC classification number: H03G3/3068 , H03G1/0023 , H03G1/0088 , H03G7/001 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/307 , H03G2201/506
Abstract: An automatic gain control (AGC) circuit includes a number of attenuation circuits connected in series relative to a reception signal, a of variable gain amplifiers to which the reception signal and each output signal from the attenuation circuits are fed, respectively, a signal deriving circuit connected to output terminals of the variable gain amplifiers for deriving a level-controlled output signal, and a control current generating circuit for generating a control current having a predetermined characteristic out of first and second AGC voltages, wherein the control current outputted from the control current generating circuit is supplied to the variable gain amplifiers as a control signal for switching an operation thereof and for controlling a gain thereof, and a feedback control current corresponding to the control current is performed by the control current generating circuit.
Abstract translation: 自动增益控制（AGC）电路包括相对于接收信号串联连接的多个衰减电路，分别馈送有来自衰减电路的接收信号和每个输出信号的可变增益放大器的信号导出电路 连接到可变增益放大器的输出端，用于导出电平控制的输出信号;以及控制电流产生电路，用于产生具有从第一和第二AGC电压起的预定特性的控制电流，其中从控制电流输出的控制电流 发电电路被提供给可变增益放大器作为用于切换其操作并用于控制其增益的控制信号，并且由控制电流产生电路执行与控制电流相对应的反馈控制电流。
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12.发明公开System for dynamic control of automatic gain control-take-over-point and method of operation 有权系统，用于自动增益控制的接管点的动态控制和运行的程序
公开(公告)号：EP1679792A2
公开(公告)日：2006-07-12
申请号：EP05251659.8
申请日：2005-03-18
Applicant: Microtune (Texas) L.P.
Inventor： Hennig, Andreas G.
IPC: H03G3/30
CPC classification number: H03G3/3068 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/307 , H03G2201/706
Abstract: A receiver for processing a signal comprises a first amplifier circuit and a second amplifier circuit. The first amplifier circuit is operated in association with a first gain profile. The second amplifier circuit is operated in association with a second gain profile. The receiver further comprises a gain control circuit that determines a quality indicator associated with a modulated signal. The gain control circuit adjusts the first gain profile and the second gain profile based at least in part upon the determined quality indicator.
Abstract translation: 一种用于处理信号接收器包括一个第一放大电路和第二放大电路。 第一放大器电路与第一增益曲线的关联操作。 第二放大器电路在与第二增益分布的关联操作。 该接收机还包括一个增益控制电路做bestimmt与调制信号相关联的质量指示器。 增益控制电路bestimmt第一增益曲线以及根据确定性开采质量指示符至少部分地基于所述第二增益轮廓。
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公开(公告)号：US20190131949A1
公开(公告)日：2019-05-02
申请号：US16130435
申请日：2018-09-13
Applicant: NXP B.V.
Inventor： Sebastien Robert , Fabian Rivière , Franck Bisson , Christophe Olivier Mertens , Samuel Becqué
CPC classification number: H03G3/3068 , H03G2201/204 , H03G2201/206 , H04B1/109 , H04B1/18
Abstract: A receiver includes at least a first amplifier configured to receive a received signal and provide a first amplified signal based thereon, a mixer configured to receive the first amplified signal and provide an intermediate frequency signal based thereon and a second amplifier configured to receive the intermediate frequency signal and provide a second amplified signal based thereon. An automatic gain controller for the receiver is configured to, based on a first overload signal indicative of a first frequency range of the first amplified signal having one or more frequency components exceeding a first maximum signal power threshold and a second overload signal indicative of a second frequency range, narrower than the first, of the second amplified signal having one or more frequency components exceeding a second maximum signal power threshold, provide for control of a respective gain of one or both of the first amplifier and the second amplifier.
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公开(公告)号：US20060205372A1
公开(公告)日：2006-09-14
申请号：US10542466
申请日：2004-01-20
Applicant: Aaron Bouillet , Matthew Mayer
Inventor： Aaron Bouillet , Matthew Mayer
CPC classification number: H03G3/3068 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/307
Abstract: A method and apparatus for generating the adaptive gain control signals in a communications receiver is disclosed. The present invention can be used with existing two stage gain architectures, and overcomes many undesirable characteristics of the previous mechanism. An apparatus is presented wherein each of a plurality of RF AGC gain controllable amplifiers are individually controlled by individual AGC control signals generated by an AGC controller so that the level of the output signal from each of the RF AGC gain controllable amplifiers is individually optimized for tuner performance.
Abstract translation: 公开了一种在通信接收机中产生自适应增益控制信号的方法和装置。 本发明可以与现有的两级增益架构一起使用，并且克服了先前机制的许多不期望的特征。 提出了一种装置，其中多个RF AGC增益可控放大器中的每一个由AGC控制器产生的各个AGC控制信号分别控制，使得来自每个RF AGC增益可控放大器的输出信号的电平被单独优化用于调谐器 性能。
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公开(公告)号：US20060052070A1
公开(公告)日：2006-03-09
申请号：US11189941
申请日：2005-07-26
Applicant: Hang Jin , John Grabner , Jun Huang , Daniel Ho
Inventor： Hang Jin , John Grabner , Jun Huang , Daniel Ho
IPC: H04B1/04
CPC classification number: H03G3/3052 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/706
Abstract: The present invention discloses a proactive gain control system for a communications receiver. The proactive gain control system includes a variable gain module for outputting an output signal in response to an input signal. A detector detects the output signal and outputs a detection signal representing a signal strength of the output signal. A traffic monitor monitors the output signal and outputs a traffic profile signal indicating that a traffic profile for the input signal will change. A gain computing module outputs a gain adjustment value in response to the detection signal and the traffic profile signal. A gain control module outputs a gain control signal to the variable gain module, which determines a gain between the input and output signals, in response to the gain adjustment value.
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Patent Agency Ranking
公开(公告)号：WO2006031573A2
公开(公告)日：2006-03-23
申请号：PCT/US2005031896
申请日：2005-09-08
Applicant: NAVINI NETWORKS INC , JIN HANG , GRABNER JOHN , HUANG JUN , HO DANIEL WEE TECK
Inventor： JIN HANG , GRABNER JOHN , HUANG JUN , HO DANIEL WEE TECK
IPC: H04B1/04
CPC classification number: H03G3/3052 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/706
Abstract: The present invention discloses a proactive gain control system for a communications receiver. The proactive gain control system includes a variable gain module for outputting an output signal in response to an input signal. A detector detects the output signal and outputs a detection signal representing a signal strength of the output signal. A traffic monitor monitors the output signal and outputs a traffic profile signal indicating that a traffic profile for the input signal will change. A gain computing module outputs a gain adjustment value in response to the detection signal and the traffic profile signal. A gain control module outputs a gain control signal to the variable gain module, which determines a gain between the input and output signals, in response to the gain adjustment value.
Abstract translation: 本发明公开了一种用于通信接收机的主动增益控制系统。 主动增益控制系统包括可变增益模块，用于响应于输入信号输出输出信号。 检测器检测输出信号并输出表示输出信号的信号强度的检测信号。 交通监控器监视输出信号并输出指示用于输入信号的业务分布将改变的业务分布信号。 增益计算模块响应于检测信号和流量分布信号输出增益调整值。 增益控制模块响应于增益调整值，向可变增益模块输出增益控制信号，该可变增益模块确定输入和输出信号之间的增益。
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公开(公告)号：WO2005067243A1
公开(公告)日：2005-07-21
申请号：PCT/US2004/001582
申请日：2004-01-20
Applicant: THOMSON LICENSING S.A. , BOUILLET, Aaron , MAYER, Matthew
Inventor： BOUILLET, Aaron , MAYER, Matthew
IPC: H04L27/08
CPC classification number: H03G3/3068 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/307
Abstract: A method and apparatus for generating the adaptive gain control signals in a communications receiver is disclosed. The present invention can be used with existing two-stage gain architectures, and overcomes many undesirable characteristics of the previous mechanism. An apparatus is presented wherein each of a plurality of RF AGC gain controllable amplifiers (140 and 150) are individually controlled by individual AGC control signals generated by an AGC controller (105) so that the level of the output signal from each of the RF AGC gain controllable amplifiers is individually optimized for tuner performance (170 and 190).
Abstract translation: 公开了一种在通信接收机中产生自适应增益控制信号的方法和装置。 本发明可以与现有的两级增益架构一起使用，并克服了先前机制的许多不期望的特征。 提出了一种装置，其中多个RF AGC增益可控放大器（140和150）中的每一个由AGC控制器（105）产生的各个AGC控制信号分别控制，使得来自每个RF AGC的输出信号的电平 增益可控放大器针对调谐器性能进行单独优化（170和190）。
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公开(公告)号：EP1787398A2
公开(公告)日：2007-05-23
申请号：EP05798668.9
申请日：2005-09-08
Applicant: Navini Networks, Inc. , Jin, Hang , Grabner, John , Huang, Jun , Ho, Daniel Wee Teck
Inventor： JIN, Hang , GRABNER, John , HUANG, Jun , HO, Daniel, Wee, Teck.
CPC classification number: H03G3/3052 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/706
Abstract: The present invention discloses a proactive gain control system (200) for a communications receiver. The proactive gain control system (200) includes a variable gain module (220) for outputting an output signal in response to an input signal. A detector (204) detects the output signal and outputs a detection signal representing a signal strength of the output signal. A traffic monitor (206) monitors the output signal and outputs a traffic profile signal indicating that a traffic profile for the input signal will change. A gain computing module (208) outputs a gain adjustment value in response to the detection signal and the traffic profile signal. A gain control module (210) outputs a gain control signal to the variable gain module (220), which determines a gain between the input and output signals, in response to the gain adjustment value.
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公开(公告)号：EP1584169A1
公开(公告)日：2005-10-12
申请号：EP04703677.7
申请日：2004-01-20
Applicant: Thomson Licensing
Inventor： BOUILLET, Aaron , MAYER, Matthew
IPC: H04L27/08
CPC classification number: H03G3/3068 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/307
Abstract: A method and apparatus for generating the adaptive gain control signals in a communications receiver is disclosed. The present invention can be used with existing two-stage gain architectures, and overcomes many undesirable characteristics of the previous mechanism. An apparatus is presented wherein each of a plurality of RF AGC gain controllable amplifiers (140 and 150) are individually controlled by individual AGC control signals generated by an AGC controller (105) so that the level of the output signal from each of the RF AGC gain controllable amplifiers is individually optimized for tuner performance (170 and 190).
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公开(公告)号：EP1787398B1
公开(公告)日：2011-11-02
申请号：EP05798668.9
申请日：2005-09-08
Applicant: Cisco Technology, Inc.
Inventor： JIN, Hang , GRABNER, John , HUANG, Jun , HO, Daniel, Wee, Teck.
CPC classification number: H03G3/3052 , H03G2201/103 , H03G2201/204 , H03G2201/305 , H03G2201/706
Abstract: The present invention discloses a proactive gain control system (200) for a communications receiver. The proactive gain control system (200) includes a variable gain module (220) for outputting an output signal in response to an input signal. A detector (204) detects the output signal and outputs a detection signal representing a signal strength of the output signal. A traffic monitor (206) monitors the output signal and outputs a traffic profile signal indicating that a traffic profile for the input signal will change. A gain computing module (208) outputs a gain adjustment value in response to the detection signal and the traffic profile signal. A gain control module (210) outputs a gain control signal to the variable gain module (220), which determines a gain between the input and output signals, in response to the gain adjustment value.
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