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11.发明申请公开(公告)号：US20060141965A1
公开(公告)日：2006-06-29
申请号：US11023691
申请日：2004-12-28
Applicant: Andreas Hennig
Inventor： Andreas Hennig
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.
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公开(公告)号：US20060079193A1
公开(公告)日：2006-04-13
申请号：US11287787
申请日：2005-11-28
Applicant: Tadahiro Sato , Akifumi Adachi
Inventor： Tadahiro Sato , Akifumi Adachi
CPC classification number: H03G3/3052 , H03G3/005 , H03G3/3078 , H03G3/3089 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H04B1/707 , H04B2201/70701 , H04B2201/70706
Abstract: A radio receiver includes a branching unit, a first gain-control system, a second-gain control system, and a signal processing unit. The branching unit branches a radio signal received by the radio receiver into two signals. The first-gain control system performs a gain control of a pilot signal in one of branched signals, and the second gain control system performs a gain control of a data signal in another of the branched signals. The signal processing unit synchronizes frames in the received radio signal. The signal processing unit outputs a gain signal to each of the first gain-control system and the second gain-control system. The first gain-control system and the second gain-control system perform the gain controls based on the gain signal.
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13.发明申请Automatic gain control device, automatic gain control method, control program for automatic gain control device, radio communication terminal having automatic control device, radio communication system, and radio communication method 有权自动增益控制装置，自动增益控制方法，自动增益控制装置的控制程序，具有自动控制装置的无线电通信终端，无线电通信系统和无线通信方法公开(公告)号：US20050221778A1
公开(公告)日：2005-10-06
申请号：US11087574
申请日：2005-03-24
Applicant: Takeshi Ishihara
Inventor： Takeshi Ishihara
IPC: H03G3/20 , H03F3/45 , H03G3/00 , H03G3/30 , H03M1/12 , H03M1/18 , H04B1/06 , H04B1/16 , H04B7/00
CPC classification number: H04W52/22 , H03G3/3068 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H03G2201/307 , H03G2201/702 , H03M1/122 , H03M1/18 , H03M1/183
Abstract: An automatic gain control device includes an amplifier for a reception signal, a signal processing unit, a memory, and a control unit. The amplifier can set a gain. The signal processing unit extracts control data from an output from the amplifier and performs information processing for the data. The memory stores the gain setting value of the amplifier. The control unit controls the gain of the amplifier in accordance with a preset control algorithm. On the basis of the result obtained when the control unit computes a gain setting value stored in the memory in accordance with a preset algorithm, the control unit controls the gain of the amplifier in correspondence with operation of switching the frequency of a reception signal, which is accompanied by different frequency monitoring in the compressed mode by the signal processing unit. A radio communication terminal, a control method for an automatic gain control device, a control program for an automatic gain control device, an automatic gain control method, a radio communication system, and a radio communication method are also disclosed.
Abstract translation: 自动增益控制装置包括用于接收信号的放大器，信号处理单元，存储器和控制单元。 放大器可以设置增益。 信号处理单元从放大器的输出中提取控制数据，并执行数据的信息处理。 存储器存储放大器的增益设置值。 控制单元根据预设的控制算法来控制放大器的增益。 基于当控制单元根据预设算法计算存储在存储器中的增益设定值时获得的结果，控制单元根据接收信号频率的切换操作来控制放大器的增益，其中 伴随着信号处理单元在压缩模式下的不同频率监视。 还公开了无线电通信终端，自动增益控制装置的控制方法，自动增益控制装置的控制程序，自动增益控制方法，无线电通信系统和无线电通信方法。
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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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Patent Agency Ranking
公开(公告)号：WO2005011165A1
公开(公告)日：2005-02-03
申请号：PCT/JP2003/009484
申请日：2003-07-25
IPC: H04J3/00
CPC classification number: H03G3/3052 , H03G3/005 , H03G3/3078 , H03G3/3089 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H04B1/707 , H04B2201/70701 , H04B2201/70706
Abstract: 受信したフレームは、共通パイロット信号の利得制御系統（２０Ａ）と、個別のデータ信号の利得制御系統（２０Ｂ）に２分岐される。利得制御系統（２０Ａ）は、共通パイロット信号の利得を利得制御し、利得制御系統（２０Ｂ）は、データ信号の利得を利得制御する。信号処理部（３０）は、フレームの同期をとり、共通パイロット信号の利得が一定となる利得制御信号（ｇ１）を共通パイロット信号の利得制御回路（２１ａ）に出力し、また、データ信号の利得が一定となる利得制御信号（ｇ２）をデータ信号の利得制御回路（２１ｂ）に出力する。利得が一定に制御されることにより、ＡＤＣ（２６ａ，２６ｂ，２７ａ，２７ｂ）の飽和やＳ／Ｎ劣化を防ぐ。
Abstract translation: 接收的帧被分支到公共导频信号增益控制系统（20A）和单个数据信号增益控制系统（20B）。 当增益控制系统（20B）增益控制数据信号的增益时，增益控制系统（20A）增益控制公共导频信号的增益。 信号处理器（30）与帧执行同步，输出用于使公共导频信号的增益恒定的公共导频信号增益控制电路（21a）的增益控制信号（g1），并输出增益控制信号（g2 ），用于使数据信号的增益恒定到数据信号增益控制电路（21b）。 由于增益被控制为恒定，因此可以防止ADC（26a，26b，27a，27b）的饱和和S / N劣化。
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公开(公告)号：US08041322B2
公开(公告)日：2011-10-18
申请号：US12359358
申请日：2009-01-26
Applicant: Hiroji Akahori
Inventor： Hiroji Akahori
IPC: H04B1/06
CPC classification number: H03G3/3068 , H03G2201/204 , H03G2201/206 , H03G2201/305 , H03G2201/307
Abstract: A radio-frequency receiver includes an RF amplification circuit which amplifies a received RF signal and generates an amplified RF signal, a mixing circuit which converts the amplified RF signal into an intermediate-frequency signal, an IF amplification circuit which generates an amplified IF signal, a first level detection circuit which detects a level of the amplified RF signal, a second level detection circuit which detects a level of the IF signal, a third level detection circuit which detects a level of the amplified IF signal, a RF reference level generation circuit which generates an RF reference level based on one of respective detection signal levels of the first and second level detection circuits, and an RF gain control circuits which controls an amplification gain of the RF amplification circuit so that a detection signal level of the third level detection circuit becomes equal to the RF reference level.
Abstract translation: 射频接收机包括放大接收的RF信号并产生放大的RF信号的RF放大电路，将放大的RF信号转换为中频信号的混合电路，产生放大的IF信号的IF放大电路， 检测放大的RF信号的电平的第一电平检测电路，检测IF信号的电平的第二电平检测电路，检测放大的IF信号的电平的第三电平检测电路，RF基准电平生成电路 其基于第一和第二电平检测电路的相应检测信号电平之一产生RF参考电平，以及RF增益控制电路，其控制RF放大电路的放大增益，使得第三电平检测的检测信号电平 电路变得等于RF参考电平。
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公开(公告)号：US20090209219A1
公开(公告)日：2009-08-20
申请号：US12359358
申请日：2009-01-26
Applicant: Hiroji Akahori
Inventor： Hiroji Akahori
IPC: H04B1/06
CPC classification number: H03G3/3068 , H03G2201/204 , H03G2201/206 , H03G2201/305 , H03G2201/307
Abstract: A radio-frequency receiver includes an RF amplification circuit which amplifies a received RF signal and generates an amplified RF signal, a mixing circuit which converts the amplified RF signal into an intermediate-frequency signal, an IF amplification circuit which generates an amplified IF signal, a first level detection circuit which detects a level of the amplified RF signal, a second level detection circuit which detects a level of the IF signal, a third level detection circuit which detects a level of the amplified IF signal, a RF reference level generation circuit which generates an RF reference level based on one of respective detection signal levels of the first and second level detection circuits, and an RF gain control circuits which controls an amplification gain of the RF amplification circuit so that a detection signal level of the third level detection circuit becomes equal to the RF reference level.
Abstract translation: 射频接收机包括放大接收的RF信号并产生放大的RF信号的RF放大电路，将放大的RF信号转换为中频信号的混合电路，产生放大的IF信号的IF放大电路， 检测放大的RF信号的电平的第一电平检测电路，检测IF信号的电平的第二电平检测电路，检测放大的IF信号的电平的第三电平检测电路，RF基准电平生成电路 其基于第一和第二电平检测电路的相应检测信号电平之一产生RF参考电平，以及RF增益控制电路，其控制RF放大电路的放大增益，使得第三电平检测的检测信号电平 电路变得等于RF参考电平。
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19.发明授权Automatic gain control device, automatic gain control method, control program for automatic gain control device, radio communication terminal having automatic control device, radio communication system, and radio communication method 有权自动增益控制装置，自动增益控制方法，自动增益控制装置的控制程序，具有自动控制装置的无线电通信终端，无线电通信系统和无线通信方法公开(公告)号：US07392027B2
公开(公告)日：2008-06-24
申请号：US11087574
申请日：2005-03-24
Applicant: Takeshi Ishihara
Inventor： Takeshi Ishihara
IPC: H04B7/00
CPC classification number: H04W52/22 , H03G3/3068 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H03G2201/307 , H03G2201/702 , H03M1/122 , H03M1/18 , H03M1/183
Abstract: An automatic gain control device includes an amplifier for a reception signal, a signal processing unit, a memory, and a control unit. The amplifier can set a gain. The signal processing unit extracts control data from an output from the amplifier and performs information processing for the data. The memory stores the gain setting value of the amplifier. The control unit controls the gain of the amplifier in accordance with a preset control algorithm. On the basis of the result obtained when the control unit computes a gain setting value stored in the memory in accordance with a preset algorithm, the control unit controls the gain of the amplifier in correspondence with operation of switching the frequency of a reception signal, which is accompanied by different frequency monitoring in the compressed mode by the signal processing unit. A radio communication terminal, a control method for an automatic gain control device, a control program for an automatic gain control device, an automatic gain control method, a radio communication system, and a radio communication method are also disclosed.
Abstract translation: 自动增益控制装置包括用于接收信号的放大器，信号处理单元，存储器和控制单元。 放大器可以设置增益。 信号处理单元从放大器的输出中提取控制数据，并执行数据的信息处理。 存储器存储放大器的增益设置值。 控制单元根据预设的控制算法来控制放大器的增益。 基于当控制单元根据预设算法计算存储在存储器中的增益设定值时获得的结果，控制单元根据接收信号频率的切换操作来控制放大器的增益，其中 伴随着信号处理单元在压缩模式下的不同频率监视。 还公开了无线电通信终端，自动增益控制装置的控制方法，自动增益控制装置的控制程序，自动增益控制方法，无线电通信系统和无线电通信方法。
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公开(公告)号：US06906584B1
公开(公告)日：2005-06-14
申请号：US10732106
申请日：2003-12-10
Applicant: Mark Moffat , Marcus Granger-Jones
Inventor： Mark Moffat , Marcus Granger-Jones
CPC classification number: H03G3/3078 , H03F2203/7215 , H03F2203/7218 , H03G1/0088 , H03G3/3052 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H03G2201/502
Abstract: The present invention provides a switchable gain amplifier comprising a high-pass filter pole. The switchable gain amplifier comprises first and second input nodes for receiving first and second components of a differential input signal. A first input terminal of a first differential amplifier is coupled to the first input node, and a first input terminal of a second differential amplifier is coupled to the second input node. A first variable resistance is coupled between the first input terminal of the first differential amplifier and a second input terminal of the first differential amplifier. A second variable resistance is coupled between the first input terminal of the second differential amplifier and a second input terminal of the second differential amplifier. A differential capacitor is coupled between the second input terminal of the first differential amplifier and the second input terminal of the second differential amplifier.
Abstract translation: 本发明提供一种包括高通滤波器极的可切换增益放大器。 可切换增益放大器包括用于接收差分输入信号的第一和第二分量的第一和第二输入节点。 第一差分放大器的第一输入端耦合到第一输入节点，第二差分放大器的第一输入端耦合到第二输入节点。 第一可变电阻耦合在第一差分放大器的第一输入端和第一差分放大器的第二输入端之间。 第二可变电阻耦合在第二差分放大器的第一输入端和第二差分放大器的第二输入端之间。 差分电容器耦合在第一差分放大器的第二输入端和第二差分放大器的第二输入端之间。
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