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公开(公告)号：WO2007147351A1
公开(公告)日：2007-12-27
申请号：PCT/CN2007/070075
申请日：2007-06-01
Inventor： 范钦槐
IPC: H04B1/04
CPC classification number: H04B1/04 , H03F1/0211 , H03F3/24 , H03F2200/451 , H03G3/004 , H03G3/30 , H03G3/3042 , H03G2201/702 , H03G2201/704 , H04B2001/0416
Abstract: A method for making a power amplifier support multi-power, computing a transmitting power based on a radio frequency parameter down from a baseband board, and determinating a power amplifier voltage based on the transmitting power and a determinated coincidence relation between the transmitting power and the power amplifier voltage, and then adjusting a supply voltage of the power amplifier based on the determinated power amplifier voltage, and then adjusting a output power of the power amplifier. A radio frequency module, including a conversion module to convert a baseband board signal to a radio frequency signal, an antenna linear device, a memory module, a power amplifier module, a adjustable power source module and a power source controlling module. A testing method, using for determinating the coincidence relation between the transmitting power and the power amplifier voltage. The method and the radio frequency module offered by the implements of the invention can achieve the object of making a power amplifier support a multi-power.
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12.发明申请
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。
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公开(公告)号：US20180102803A1
公开(公告)日：2018-04-12
申请号：US15567074
申请日：2016-04-11
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Peter ALRIKSSON , Joakim AXMON
CPC classification number: H04B1/123 , H03G3/3078 , H03G2201/103 , H03G2201/702 , H04W52/52
Abstract: The gain of an amplifier in a receiver operating in a cellular communication system is controlled by determining one or more gain variability metrics, which are then used to produce first and second threshold values. A frequency difference between a current carrier frequency and a target carrier frequency is ascertained and then compared to the threshold values. Target gain setting production is based on comparison results: If the frequency difference is larger than the first threshold, a first automatic gain control algorithm is performed; if the frequency difference is smaller than the first threshold and larger than the second threshold, a second automatic gain control algorithm is performed, wherein the second automatic gain control algorithm uses a current gain setting as a starting point; and if the frequency difference is smaller than both the first and second thresholds, the current gain setting is used as the target gain setting.
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公开(公告)号：US07493093B2
公开(公告)日：2009-02-17
申请号：US11159926
申请日：2005-06-23
Applicant: Steven P. Boerman , Paul T. DiCarlo , Patrice Reginella
Inventor： Steven P. Boerman , Paul T. DiCarlo , Patrice Reginella
CPC classification number: H03G3/3042 , H03G2201/702 , H04B1/04 , H04B2001/0416
Abstract: A method and apparatus for power detection in a multi-mode communication device configured for operation in different modes or frequency bands. A detector monitors the power level of an amplified outgoing signal. The detector may be configured with a switch and two or more samplers. Responsive to the mode of operation, the detector adopts an optimal configuration to generate a power level feedback signal, which is provided to a digital signal processor or controller. Comparison of the power level feedback signal to a target value may occur to generate an amplifier control signal. The amplifier control signal controls the gain, applied by an amplifier, to the outgoing signal. During operation, the system monitors for a change in the mode of operation and upon responsive to a change, generates a switch control signal to reconfigure the detector configuration to match the new mode of operation.
Abstract translation: 一种用于在不同模式或频带中操作的多模式通信设备中的功率检测方法和装置。 检测器监视放大输出信号的功率电平。 检测器可以配置有开关和两个或更多个采样器。 响应于操作模式，检测器采用最佳配置来产生功率电平反馈信号，该信号提供给数字信号处理器或控制器。 功率电平反馈信号与目标值的比较可能发生，以产生放大器控制信号。 放大器控制信号将由放大器施加的增益控制为输出信号。 在操作期间，系统监视操作模式的改变，并且响应于改变，产生开关控制信号以重新配置检测器配置以匹配新的操作模式。
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公开(公告)号：US20070176681A1
公开(公告)日：2007-08-02
申请号：US10589076
申请日：2005-02-08
Applicant: Hidenori Matsumoto
Inventor： Hidenori Matsumoto
IPC: H03G3/00
CPC classification number: H03G1/0088 , H03G3/3042 , H03G2201/103 , H03G2201/506 , H03G2201/702 , H03G2201/708 , H04B2001/0416
Abstract: A transmission power control apparatus which reduces the number of steps required for adjustments of the transmission power control apparatus and performs transmission power control with high accuracy in a wide dynamic range. The apparatus has a first variable amplifying circuit (122) with the resolution of 1 dB and a second variable amplifying circuit (123) with the resolution of 0.1 dB, where a correction value calculating section (106) calculates a correction value to compensate for deterioration in the accuracy of transmission power caused by a change in environment due to frequency characteristics and temperature characteristics and another correction value to compensate for error in transmission power, a transmission power calculating section (107) calculates transmission power obtained by correcting with the correction value specified transmission power to output to a communicating party based on the received signal, and a first set value calculating section (108) and a second set value calculating section (109) calculate gain values to set on the first variable amplifying circuit (122) and second variable amplifying circuit (123) based on the corrected transmission power, respectively.
Abstract translation: 一种发送功率控制装置，其减少了调整发送功率控制装置所需的步骤数量，并且在宽动态范围内以高精度执行发送功率控制。 该装置具有分辨率为1dB的第一可变放大电路（122）和分辨率为0.1dB的第二可变放大电路（123），其中校正值计算部分（106）计算校正值以补偿劣化 在由于频率特性和温度特性引起的由环境变化引起的发送功率的精度以及用于补偿发送功率误差的另一校正值的情况下，发送功率计算部（107）计算通过指定的校正值进行校正而获得的发送功率 发送功率，基于接收信号输出到通信对方，第一设定值计算部（108）和第二设定值计算部（109）计算设定在第1可变放大电路（122）和第2可变放大电路 可变放大电路（123）基于校正的发射功率， y。
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Patent Agency Ranking
16.发明申请Method for controlling power level of received signal in ultra wide band transmission system 失效控制超宽带传输系统接收信号功率电平的方法公开(公告)号：US20050009490A1
公开(公告)日：2005-01-13
申请号：US10841591
申请日：2004-05-06
Applicant: Hyung-Soo Lee , Sang-In Cho , Kyu-Min Kang , Chang-Joo Kim
Inventor： Hyung-Soo Lee , Sang-In Cho , Kyu-Min Kang , Chang-Joo Kim
CPC classification number: H04W52/52 , H03G3/3052 , H03G2201/103 , H03G2201/502 , H03G2201/702 , H04B1/71637
Abstract: Disclosed is a method for controlling power level of received signal in an ultra wide band transmission system which uses multi frequency bands, and includes a pre-gain controller (PGC) and a voltage gain amplifier (VGA). The method for controlling a power level of a received signal includes the steps of: a) at the PGCs, detecting which multi frequency band is used in a transmitter of the transmission system; b) at the PGCs, obtaining the voltage gain owing to the discrepancy in the power levels of the received signals; and c) at the PGCs, compensating for the power loss based on the voltage gain.
Abstract translation: 公开了一种在使用多频带的超宽带传输系统中控制接收信号的功率电平的方法，包括预增益控制器（PGC）和电压增益放大器（VGA）。 用于控制接收信号的功率电平的方法包括以下步骤：a）在PGC检测在传输系统的发射机中使用哪个多频带; b）在PGC处，由于接收到的信号的功率电平的差异而获得电压增益; 和c）在PGC处，基于电压增益来补偿功率损耗。
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公开(公告)号：EP2241015A1
公开(公告)日：2010-10-20
申请号：EP09707529.5
申请日：2009-01-27
Applicant: Ricoh Company, Ltd.
Inventor： EJIMA, Takeshi
CPC classification number: H04B1/713 , H03G3/3052 , H03G2201/702 , H04B17/318 , H04L27/2647
Abstract: A disclosed radio communication apparatus includes an amplifier configured to amplify a signal received via one of multiple channels including a channel where frequency hopping is conducted; a signal strength measurement circuit configured to measure signal strength of the received signal; and a gain value computation unit configured to compute a gain value for the amplifier based on the signal strength measured by the signal strength measurement circuit. The gain value computation unit is configured to use values specific to the respective channels as coefficients of a function to compute the gain value.
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公开(公告)号：EP1583232B1
公开(公告)日：2010-06-02
申请号：EP05090077.8
申请日：2005-03-29
Applicant: NEC CORPORATION
Inventor： Ishihara, Takeshi, c/o NEC Corporation
CPC classification number: H04W52/22 , H03G3/3068 , H03G2201/103 , H03G2201/202 , H03G2201/305 , H03G2201/307 , H03G2201/702 , H03M1/122 , H03M1/18 , H03M1/183
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公开(公告)号：EP2241015A4
公开(公告)日：2013-11-06
申请号：EP09707529
申请日：2009-01-27
Applicant: RICOH CO LTD
Inventor： EJIMA TAKESHI
CPC classification number: H04B1/713 , H03G3/3052 , H03G2201/702 , H04B17/318 , H04L27/2647
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20.发明授权
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.
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