公开(公告)号：US20050143942A1

公开(公告)日：2005-06-30

申请号：US11040354

申请日：2005-01-21

Applicant: Kumen Blake ,  James Nolan

Inventor： Kumen Blake ,  James Nolan

IPC: G06F19/00 ,  H03F3/00 ,  H03G3/00 ,  H03G3/30

CPC classification number: H03G3/001 ,  H03G3/3026 ,  H03G2201/103 ,  H03G2201/502

Abstract: An amplifier having programmable operational characteristics and a serial communications interface are fabricated on an integrated circuit (IC). The serial communications interface controls the operational characteristics, e.g., gain, frequency response, etc., of the amplifier. A multiplexer (MUX) may also be included on the IC and may be controlled by the serial communications interface. Status of the amplifier may also be obtained through the serial communications interface. The pin count of the IC package may be kept to a minimum by using the serial communications interface.

Abstract translation: 在集成电路（IC）上制造具有可编程操作特性的放大器和串行通信接口。 串行通信接口控制放大器的操作特性，例如增益，频率响应等。 多路复用器（MUX）也可以被包括在IC上并且可以由串行通信接口来控制。 也可以通过串行通信接口获得放大器的状态。 使用串行通信接口可以将IC封装的引脚数保持在最小值。

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

IPC: H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H03F3/45

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。

公开(公告)号：US06303922B1

公开(公告)日：2001-10-16

申请号：US09120388

申请日：1998-07-21

Applicant: Bryon L. Kasper

Inventor： Bryon L. Kasper

IPC: H01J4014

CPC classification number: H03G9/16 ,  H03F3/087 ,  H03G1/0088 ,  H03G3/3084 ,  H03G2201/103 ,  H03G2201/502

Abstract: At least two innovations are used to overcome the limitations of conventional transimpedance or high impedance optical receiver front end amplifiers. The innovations are a) multiple stage equalization of a high-feedback resistor, low-gain transimpedance amplifier to obtain high sensitivity, and b) range switching of feedback resistors and equalization capacitors to obtain high overload. With these approaches, it is possible to design an optical receiver operating at the intrinsic limits of available device technology.

Abstract translation: 使用至少两个创新来克服常规跨阻抗或高阻抗光接收机前端放大器的限制。 创新是a）高反馈电阻，低增益互阻抗放大器的多级均衡以获得高灵敏度，以及b）反馈电阻和均衡电容的范围切换以获得高过载。 利用这些方法，可以设计在可用设备技术的固有极限下操作的光接收机。

公开(公告)号：WO2018099741A1

公开(公告)日：2018-06-07

申请号：PCT/EP2017/079677

申请日：2017-11-17

Applicant: UNIVERSITE D'AIX-MARSEILLE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： HABIB, Amr

IPC: H03F3/70 ,  H03F1/34 ,  H03F3/08 ,  H03G3/12 ,  H03G1/00

CPC classification number: H03F3/70 ,  H03F1/342 ,  H03F3/082 ,  H03F3/087 ,  H03F2200/126 ,  H03F2200/156 ,  H03F2200/264 ,  H03F2200/267 ,  H03G1/0052 ,  H03G1/0064 ,  H03G2201/502

Abstract: La présente invention concerne un dispositif amplificateur de charges à gain de conversion élevé qui comprend un amplificateur en tension et une boucle de rétroaction entre la sortie et l'entrée de l'amplificateur, tel que la boucle de rétroaction est constituée d'une capacité connectée en série avec un diviseur de tension, le diviseur de tension comprenant au moins une capacité variable connectée entre un point intermédiaire de tension et une tension de polarisation variable et étant agencé pour que la tension au point intermédiaire soit inférieure à la tension de sortie de l'amplificateur.

公开(公告)号：WO2018075599A1

公开(公告)日：2018-04-26

申请号：PCT/US2017/057115

申请日：2017-10-18

Applicant: CARRIER CORPORATION

Inventor： LAVON, Ronie ,  MELANSON, Dan

IPC: H03F1/30 ,  H03F1/34 ,  H03F3/08 ,  H03F3/45 ,  H03G1/00 ,  H03G3/30

CPC classification number: H03F1/30 ,  F23N5/082 ,  H03F1/34 ,  H03F3/087 ,  H03F3/45475 ,  H03F2200/126 ,  H03F2200/156 ,  H03F2200/261 ,  H03F2200/447 ,  H03F2203/45136 ,  H03F2203/45286 ,  H03F2203/45518 ,  H03F2203/45524 ,  H03F2203/45536 ,  H03G1/0088 ,  H03G2201/502

Abstract: An amplifier assembly (100) includes an amplifier (102) having an input terminal, an output terminal and a feedback terminal; a first feedback path connecting the output terminal to the feedback terminal; a second feedback path connecting the output terminal to the feedback terminal; a switch (124) positioned in the second feedback path, the switch (124) opening or closing in response to a voltage at the output terminal relative to a breakpoint, when the switch (124) is open, the amplifier assembly (100) has a first gain and when the switch (124) is closed, the amplifier assembly (100) has a second gain; and a thermally variable element (152) connected to the switch (124), the thermally variable element (152) configured to generate a compensation voltage to maintain the breakpoint in response to varying temperature of the switch (152).

Abstract translation: 放大器组件（100）包括具有输入端子，输出端子和反馈端子的放大器（102）;放大器 将输出端子连接到反馈端子的第一反馈路径; 将输出端子连接到反馈端子的第二反馈路径; 当所述开关（124）打开时，所述放大器组件（100）具有位于所述第二反馈路径中的开关（124），所述开关（124）响应于所述输出端子处的电压相对于断点而断开或闭合 第一增益，并且当开关（124）闭合时，放大器组件（100）具有第二增益; 和连接到所述开关（124）的热可变元件（152），所述热可变元件（152）被配置为响应于所述开关（152）的温度变化产生补偿电压以保持所述断点。

公开(公告)号：EP2161833B1

公开(公告)日：2011-11-30

申请号：EP09009347.7

申请日：2003-07-30

Applicant: Mitsubishi Denki Kabushiki Kaisha

Inventor： Nogami, Masamichi ,  Noda, Masaki ,  Tagami, Hitoyuki ,  Motoshima, Kuniaki

IPC: H03G3/30 ,  H03G1/00

CPC classification number: H03G3/3084 ,  H03F3/08 ,  H03G1/0047 ,  H03G2201/103 ,  H03G2201/502 ,  H04B10/69

公开(公告)号：EP2161833A1

公开(公告)日：2010-03-10

申请号：EP09009347.7

申请日：2003-07-30

Applicant: Mitsubishi Denki Kabushiki Kaisha

Inventor： Nogami, Masamichi ,  Noda, Masaki ,  Tagami, Hitoyuki ,  Motoshima, Kuniaki

IPC: H03G3/30 ,  H03G1/00

CPC classification number: H03G3/3084 ,  H03F3/08 ,  H03G1/0047 ,  H03G2201/103 ,  H03G2201/502 ,  H04B10/69

Abstract: A gain switching circuit (3) that switches a conversion gain of a preamp (2) , which outputs a voltage signal upon amplifying an output current of a photo-detecting element (1) that converts a burst-form optical signal into an electrical signal and with which a series circuit, formed with a first resistor (6) and a first switching element (9) , and a series circuit, formed with a second resistor (7) and a second switching element (10) are connected in parallel to a feedback resistor (2B). The switching circuit further includes a gate signal generating circuit that generates, upon receiving an output of the pre-amplifier, a gate signal for a first and second operating unit.

Abstract translation: 一种增益切换电路（3），其切换前置放大器（2）的转换增益，该放大器（2）的转换增益在放大光电检测元件（1）的输出电流时输出，该光检测元件将突发形式的光信号转换为电信号 与第一电阻器（6）和第一开关元件（9）形成的串联电路和形成有第二电阻器（7）和第二开关元件（10）的串联电路并联连接到 反馈电阻器（2B）。 开关电路还包括门信号发生电路，其在接收到前置放大器的输出时产生用于第一和第二操作单元的门信号。

公开(公告)号：EP1653607B1

公开(公告)日：2009-10-07

申请号：EP03817770.5

申请日：2003-07-30

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： NOGAMI, Masamichi, c/o Mitsubishi Denki K.K. ,  NODA, Masaki, c/o Mitsubishi Denki K.K. ,  TAGAMI, Hitoyuki, c/o Mitsubishi Denki K.K. ,  MOTOSHIMA, Kuniaki, c/o Mitsubishi Denki K.K.

IPC: H03G3/20 ,  H03F3/08 ,  H04B10/06

CPC classification number: H03G3/3084 ,  H03F3/08 ,  H03G1/0047 ,  H03G2201/103 ,  H03G2201/502 ,  H04B10/69

公开(公告)号：KR100519806B1

公开(公告)日：2005-10-11

申请号：KR1020030069490

申请日：2003-10-07

Applicant: 한국전자통신연구원

Inventor： 이형수 ,  조상인 ,  강규민 ,  김창주

IPC: H04B7/26

CPC classification number: H04W52/52 ,  H03G3/3052 ,  H03G2201/103 ,  H03G2201/502 ,  H03G2201/702 ,  H04B1/71637

Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은, 본 발명은 초광대역 전송 시스템의 수신신호 전력 제어 방법과 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은, 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 제안된 것으로, 서로 다른 주파수 대역을 사용함으로써 생기는 수신신호의 전력차를 수신부에 있는 VGA 앞단에서 미리 처리함으로써, VGA의 역할을 간소화하여 초기 수렴속도를 빠르게 하기 위한 초광대역 전송 시스템의 수신신호 전력 제어 방법을 제공하는데 그 목적이 있음.
3. 발명의 해결방법의 요지
본 발명은, 다중 주파수 대역을 사용하는 전송 시스템에서 전압 이득 증폭기(VGA) 앞단에 배치된 전-이득 제어부(PGC)를 구비하여, 상기 PGC가 수신되는 신호의 주파수 대역에 따른 전력의 차이를 보상하기 위한 초광대역 전송 시스템의 수신신호 전력 제어 방법에 있어서, 상기 전송 시스템의 송신부에서 사용한 다중 주파수 대역을 감지하는 제 1단계; 다중 주파수 대역 사용에 따른 수신신호 세기의 차이의 전력 이득값을 결정하는 제 2단계; 및 상기 수신신호 세기의 차이의 전력 이득값에 따라 수신신호 전력의 보상을 수행하는 제 3단계를 포함함.
4. 발명의 중요한 용도
본 발명은 초광대역(UWB) 전송 시스템에 이용됨.

公开(公告)号：KR1020050033908A

公开(公告)日：2005-04-14

申请号：KR1020030069490

申请日：2003-10-07

Applicant: 한국전자통신연구원

Inventor： 이형수 ,  조상인 ,  강규민 ,  김창주

IPC: H04B7/26

CPC classification number: H04W52/52 ,  H03G3/3052 ,  H03G2201/103 ,  H03G2201/502 ,  H03G2201/702 ,  H04B1/71637

Abstract: A method for controlling a receiving signal power of a ultra wide band transmission system is provided to mount a PGC in a front end of a VGA, and to compensate a power difference in accordance with frequency bands of received signals by the PGC, thereby providing a faster initial convergence by simplifying a VGA operation. In a ultra wide band transmission system, a receiving unit is comprised of an antenna(600), a pre-select filter(610), an LNA(Low Noise Amplifier)(620), modulators(630,631), LPFs(Low Pass Filter)(640,641), VGAs(660,661), ADCs(Analog/Digital Converters)(670,671), a timing recovery/demodulator(680), and PGCs(650,651). The modulators(630,631) detect frequency bands used by a transmission unit in the ultra wide band transmission system. The PGCs(650,651) decide a power gain value of an intensity difference of receiving signals according to multi frequency bands, and compensate the power gain value.

Abstract translation: 提供一种用于控制超宽带传输系统的接收信号功率的方法，以将PGC安装在VGA的前端，并根据PGC接收到的信号的频带来补偿功率差，从而提供 通过简化VGA操作更快的初始收敛。 在超宽带传输系统中，接收单元包括天线（600），预选滤波器（610），LNA（低噪声放大器）（620），调制器​​（630,631），LPF（低通滤波器 （640,641），VGA（660,661），ADC（模拟/数字转换器）（670,671），定时恢复/解调器（680）和PGC（650,651）。 调制器（630,631）检测超宽带传输系统中的传输单元使用的频带。 PGC（650,651）根据多频段决定接收信号的强度差的功率增益值，并补偿功率增益值。