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DK1776753T3 - System og fremgangsmåde til strømmodus-amplitudemodulation - Google Patents

System og fremgangsmåde til strømmodus-amplitudemodulation

Info

Publication number
DK1776753T3
DK1776753T3 DK05769416.8T DK05769416T DK1776753T3 DK 1776753 T3 DK1776753 T3 DK 1776753T3 DK 05769416 T DK05769416 T DK 05769416T DK 1776753 T3 DK1776753 T3 DK 1776753T3
Authority
DK
Denmark
Prior art keywords
power mode
amplitude modulation
modulation system
mode amplitude
power
Prior art date
Application number
DK05769416.8T
Other languages
English (en)
Inventor
David R Pehlke
Aristotele Hadjichristos
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35241072&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1776753(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DK1776753T3 publication Critical patent/DK1776753T3/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/324—An amplitude modulator or demodulator being used in the amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/456—A scaled replica of a transistor being present in an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
  • Transmitters (AREA)
DK05769416.8T 2004-07-12 2005-07-11 System og fremgangsmåde til strømmodus-amplitudemodulation DK1776753T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/889,567 US7333778B2 (en) 2001-03-21 2004-07-12 System and method for current-mode amplitude modulation
PCT/US2005/024406 WO2006017202A1 (en) 2004-07-12 2005-07-11 System and method for current-mode amplitude modulation

Publications (1)

Publication Number Publication Date
DK1776753T3 true DK1776753T3 (da) 2013-07-08

Family

ID=35241072

Family Applications (1)

Application Number Title Priority Date Filing Date
DK05769416.8T DK1776753T3 (da) 2004-07-12 2005-07-11 System og fremgangsmåde til strømmodus-amplitudemodulation

Country Status (12)

Country Link
US (1) US7333778B2 (da)
EP (1) EP1776753B1 (da)
JP (1) JP4646981B2 (da)
KR (1) KR101124914B1 (da)
CN (1) CN101015119B (da)
AU (1) AU2005271920A1 (da)
BR (1) BRPI0513270A (da)
CA (1) CA2573862C (da)
DK (1) DK1776753T3 (da)
ES (1) ES2425038T3 (da)
HK (1) HK1110707A1 (da)
WO (1) WO2006017202A1 (da)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8744384B2 (en) 2000-07-20 2014-06-03 Blackberry Limited Tunable microwave devices with auto-adjusting matching circuit
US8064188B2 (en) 2000-07-20 2011-11-22 Paratek Microwave, Inc. Optimized thin film capacitors
US7512386B2 (en) * 2003-08-29 2009-03-31 Nokia Corporation Method and apparatus providing integrated load matching using adaptive power amplifier compensation
DE102005034440A1 (de) * 2005-07-22 2007-02-01 Infineon Technologies Ag Verstärkeranordnung, Polartransmitter mit der Verstärkeranordnung und Verfahren zur Signalverstärkung
KR20080031463A (ko) 2005-07-27 2008-04-08 엔엑스피 비 브이 Ｒｆ 송신기, 이를 구비한 집적회로 및 배터리 전력공급형이동장치 및 송신기 동작 방법
US9406444B2 (en) 2005-11-14 2016-08-02 Blackberry Limited Thin film capacitors
US8325097B2 (en) * 2006-01-14 2012-12-04 Research In Motion Rf, Inc. Adaptively tunable antennas and method of operation therefore
US8125399B2 (en) * 2006-01-14 2012-02-28 Paratek Microwave, Inc. Adaptively tunable antennas incorporating an external probe to monitor radiated power
US7711337B2 (en) 2006-01-14 2010-05-04 Paratek Microwave, Inc. Adaptive impedance matching module (AIMM) control architectures
WO2007149346A2 (en) * 2006-06-16 2007-12-27 Pulsewave Rf, Inc. Radio frequency power amplifier and method using a controlled supply
US8299867B2 (en) * 2006-11-08 2012-10-30 Research In Motion Rf, Inc. Adaptive impedance matching module
US7714676B2 (en) 2006-11-08 2010-05-11 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method
US7535312B2 (en) * 2006-11-08 2009-05-19 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method with improved dynamic range
US8749319B2 (en) * 2006-11-18 2014-06-10 Rfmicron, Inc. Method and apparatus for detecting RF field strength
US7917104B2 (en) * 2007-04-23 2011-03-29 Paratek Microwave, Inc. Techniques for improved adaptive impedance matching
US8213886B2 (en) 2007-05-07 2012-07-03 Paratek Microwave, Inc. Hybrid techniques for antenna retuning utilizing transmit and receive power information
JP4804440B2 (ja) * 2007-10-05 2011-11-02 パナソニック株式会社 ポーラ変調送信装置及び無線通信装置、並びにポーラ変調送信方法
US7719293B2 (en) * 2007-11-12 2010-05-18 Dell Products L.P. System and method for current measurement
US7991363B2 (en) 2007-11-14 2011-08-02 Paratek Microwave, Inc. Tuning matching circuits for transmitter and receiver bands as a function of transmitter metrics
US20090153250A1 (en) * 2007-12-12 2009-06-18 Ahmadreza Rofougaran Method and system for scaling supply, device size, and load of a power amplifier
WO2010029597A1 (ja) * 2008-09-10 2010-03-18 株式会社アドバンテスト 試験装置および回路システム
US7982526B2 (en) * 2008-09-17 2011-07-19 Qualcomm, Incorporated Active-time dependent bias current generation for switched-capacitor circuits
US8326371B2 (en) * 2008-09-22 2012-12-04 Texas Instruments Incorporated DC current based on chip RF power detection scheme for a power amplifier
US8072285B2 (en) 2008-09-24 2011-12-06 Paratek Microwave, Inc. Methods for tuning an adaptive impedance matching network with a look-up table
US8854019B1 (en) 2008-09-25 2014-10-07 Rf Micro Devices, Inc. Hybrid DC/DC power converter with charge-pump and buck converter
US9166471B1 (en) 2009-03-13 2015-10-20 Rf Micro Devices, Inc. 3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters
US8315576B2 (en) 2009-05-05 2012-11-20 Rf Micro Devices, Inc. Capacitive compensation of cascaded directional couplers
US8472888B2 (en) 2009-08-25 2013-06-25 Research In Motion Rf, Inc. Method and apparatus for calibrating a communication device
TWM373617U (en) * 2009-10-02 2010-02-01 Mascot Electric Co Ltd Waistband type wireless microphone transmitter unit
US9026062B2 (en) 2009-10-10 2015-05-05 Blackberry Limited Method and apparatus for managing operations of a communication device
US8548398B2 (en) 2010-02-01 2013-10-01 Rf Micro Devices, Inc. Envelope power supply calibration of a multi-mode radio frequency power amplifier
US8803631B2 (en) 2010-03-22 2014-08-12 Blackberry Limited Method and apparatus for adapting a variable impedance network
KR101101541B1 (ko) 2010-03-23 2012-01-02 삼성전기주식회사 증폭 제어 회로
US8538355B2 (en) 2010-04-19 2013-09-17 Rf Micro Devices, Inc. Quadrature power amplifier architecture
US9553550B2 (en) 2010-04-20 2017-01-24 Qorvo Us, Inc. Multiband RF switch ground isolation
US8913971B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Selecting PA bias levels of RF PA circuitry during a multislot burst
US9577590B2 (en) 2010-04-20 2017-02-21 Qorvo Us, Inc. Dual inductive element charge pump buck and buck power supplies
US8860525B2 (en) 2010-04-20 2014-10-14 Blackberry Limited Method and apparatus for managing interference in a communication device
US8831544B2 (en) 2010-04-20 2014-09-09 Rf Micro Devices, Inc. Dynamic device switching (DDS) of an in-phase RF PA stage and a quadrature-phase RF PA stage
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US8983410B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Configurable 2-wire/3-wire serial communications interface
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US8942651B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. Cascaded converged power amplifier
US9077405B2 (en) 2010-04-20 2015-07-07 Rf Micro Devices, Inc. High efficiency path based power amplifier circuitry
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US9214865B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Voltage compatible charge pump buck and buck power supplies
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US9184701B2 (en) 2010-04-20 2015-11-10 Rf Micro Devices, Inc. Snubber for a direct current (DC)-DC converter
US9362825B2 (en) 2010-04-20 2016-06-07 Rf Micro Devices, Inc. Look-up table based configuration of a DC-DC converter
US9214900B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Interference reduction between RF communications bands
US9900204B2 (en) 2010-04-20 2018-02-20 Qorvo Us, Inc. Multiple functional equivalence digital communications interface
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US9008597B2 (en) 2010-04-20 2015-04-14 Rf Micro Devices, Inc. Direct current (DC)-DC converter having a multi-stage output filter
US8892063B2 (en) 2010-04-20 2014-11-18 Rf Micro Devices, Inc. Linear mode and non-linear mode quadrature PA circuitry
US8947157B2 (en) 2010-04-20 2015-02-03 Rf Micro Devices, Inc. Voltage multiplier charge pump buck
US8842399B2 (en) 2010-04-20 2014-09-23 Rf Micro Devices, Inc. ESD protection of an RF PA semiconductor die using a PA controller semiconductor die
US8989685B2 (en) 2010-04-20 2015-03-24 Rf Micro Devices, Inc. Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry
US9048787B2 (en) 2010-04-20 2015-06-02 Rf Micro Devices, Inc. Combined RF detector and RF attenuator with concurrent outputs
JP5725027B2 (ja) * 2010-08-03 2015-05-27 日本電気株式会社 送信装置及びその制御方法
DE102010040130A1 (de) * 2010-09-02 2012-03-08 Robert Bosch Gmbh Zeitgebermodul
US9379454B2 (en) 2010-11-08 2016-06-28 Blackberry Limited Method and apparatus for tuning antennas in a communication device
US8890616B2 (en) 2010-12-05 2014-11-18 Rf Micro Devices (Cayman Islands), Ltd. Power amplifier system with a current bias signal path
US8712340B2 (en) 2011-02-18 2014-04-29 Blackberry Limited Method and apparatus for radio antenna frequency tuning
US8655286B2 (en) 2011-02-25 2014-02-18 Blackberry Limited Method and apparatus for tuning a communication device
WO2012158423A2 (en) 2011-05-13 2012-11-22 Skyworks Solutions, Inc. Apparatus and methods for biasing power amplifiers
US8626083B2 (en) 2011-05-16 2014-01-07 Blackberry Limited Method and apparatus for tuning a communication device
US8594584B2 (en) 2011-05-16 2013-11-26 Blackberry Limited Method and apparatus for tuning a communication device
US9002303B2 (en) * 2011-05-27 2015-04-07 Samsung Electronics Co., Ltd. Method and apparatus for programmable envelope shaping circuit based on piecewise linear interpolation
EP2740221B1 (en) 2011-08-05 2019-06-26 BlackBerry Limited Method and apparatus for band tuning in a communication device
US9679869B2 (en) 2011-09-02 2017-06-13 Skyworks Solutions, Inc. Transmission line for high performance radio frequency applications
US9065505B2 (en) 2012-01-31 2015-06-23 Rf Micro Devices, Inc. Optimal switching frequency for envelope tracking power supply
EP2654203A1 (en) * 2012-04-20 2013-10-23 Alcatel-Lucent An amplifier circuit, a method, and a computer program for amplifying a modulated radio-frequency signal
US8948889B2 (en) 2012-06-01 2015-02-03 Blackberry Limited Methods and apparatus for tuning circuit components of a communication device
CN103597742A (zh) 2012-06-14 2014-02-19 西凯渥资讯处理科技公司 包含相关系统、装置及方法的功率放大器模块
KR101944337B1 (ko) 2012-06-14 2019-02-01 스카이워크스 솔루션즈, 인코포레이티드 공정 보상된 hbt 전력 증폭기 바이어스 회로 및 방법
US9853363B2 (en) 2012-07-06 2017-12-26 Blackberry Limited Methods and apparatus to control mutual coupling between antennas
US9246223B2 (en) 2012-07-17 2016-01-26 Blackberry Limited Antenna tuning for multiband operation
US9350405B2 (en) 2012-07-19 2016-05-24 Blackberry Limited Method and apparatus for antenna tuning and power consumption management in a communication device
US9413066B2 (en) 2012-07-19 2016-08-09 Blackberry Limited Method and apparatus for beam forming and antenna tuning in a communication device
US9362891B2 (en) 2012-07-26 2016-06-07 Blackberry Limited Methods and apparatus for tuning a communication device
US9374113B2 (en) 2012-12-21 2016-06-21 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
US10404295B2 (en) 2012-12-21 2019-09-03 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
KR101506579B1 (ko) 2013-05-09 2015-03-27 (주)비엔씨넷 안정된 바이어스를 유지하는 클래스 ab 앰프
WO2014190505A1 (en) * 2013-05-29 2014-12-04 Nokia Corporation Amplification of a radio frequency signal
WO2015003098A1 (en) * 2013-07-05 2015-01-08 Mediatek Singapore Pte. Ltd. Integrated circuit wireless communication unit and method for providing a power supply
US9362870B2 (en) 2013-08-01 2016-06-07 Skyworks Solutions, Inc. Apparatus and methods for biasing power amplifiers
CN104467745B (zh) 2013-09-19 2018-07-20 天工方案公司 动态误差向量幅度占空比校正
US9660600B2 (en) 2013-12-23 2017-05-23 Skyworks Solutions, Inc. Dynamic error vector magnitude compensation
JP2016025453A (ja) * 2014-07-18 2016-02-08 セイコーエプソン株式会社 回路装置、電子機器及び移動体
CN104601161A (zh) * 2014-12-09 2015-05-06 中国航空工业集团公司第六三一研究所 一种阻抗校正电路和方法
US9438319B2 (en) 2014-12-16 2016-09-06 Blackberry Limited Method and apparatus for antenna selection
US9722547B2 (en) 2014-12-30 2017-08-01 Skyworks Solutions, Inc. Compression control through amplitude adjustment of a radio frequency input signal
US9455565B2 (en) * 2015-02-11 2016-09-27 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Protection circuit that detects fault impedance during power up of a device
CN104753479B (zh) * 2015-03-09 2017-12-26 上海东软载波微电子有限公司 射频功率放大器电路及射频发射机
KR102140191B1 (ko) * 2015-07-14 2020-08-03 삼성전기주식회사 전력 증폭기용 전력 공급 장치
JP2017072911A (ja) 2015-10-05 2017-04-13 株式会社村田製作所 電流出力回路
DE102015222570B4 (de) 2015-11-16 2024-04-11 Dialog Semiconductor (Uk) Limited Schaltung und verfahren zur stromerfassung mit hoher genauigkeit
US10666200B2 (en) 2017-04-04 2020-05-26 Skyworks Solutions, Inc. Apparatus and methods for bias switching of power amplifiers
CN111226138B (zh) * 2017-10-26 2023-11-07 深圳帧观德芯科技有限公司 能够进行噪声操控的辐射检测器
US10673400B2 (en) * 2017-11-14 2020-06-02 The Regents Of The University Of Colorado, A Body Gain stabilization for supply modulated RF and microwave integrated circuits
CN110808717B (zh) * 2018-08-06 2023-08-01 锐迪科创微电子（北京）有限公司 一种电源补偿的电流模控制射频功率放大器
JP7368148B2 (ja) 2019-09-06 2023-10-24 株式会社東芝 電源回路及び無線通信装置
KR102679083B1 (ko) 2020-03-03 2024-07-01 삼성디스플레이 주식회사 인터페이스 시스템 및 이를 포함하는 표시장치
KR102658505B1 (ko) * 2020-05-06 2024-04-19 한국전자통신연구원 저역 통과 필터를 포함하는 베이스밴드 처리 장치
CN115812276A (zh) * 2020-06-19 2023-03-17 株式会社村田制作所 高频电路以及通信装置
CN114285426B (zh) * 2021-11-25 2023-12-12 深圳市紫光同创电子有限公司 一种SerDes发送器输出摆幅控制装置及方法
US12142342B2 (en) 2022-02-21 2024-11-12 Industrial Technology Research Institute Memory circuit with sense amplifier calibration mechanism

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737905A (en) * 1980-08-14 1982-03-02 Toshiba Corp Envelope curve wave detecting circuit
US4808907A (en) * 1988-05-17 1989-02-28 Motorola, Inc. Current regulator and method
US4952890A (en) * 1989-09-12 1990-08-28 Harris Corporation Phase modulation compensated amplitude modulator using digitally selected amplifiers
GB2279779B (en) * 1993-06-02 1997-03-05 Vtech Communications Ltd Amplifier power control system
US5566944A (en) 1993-12-29 1996-10-22 Anderson; Richard M. K. Game apparatus
GB2306814B (en) 1995-11-01 2000-03-15 Roke Manor Research Improvements in or relating to rf power amplifiers
US5880635A (en) * 1997-04-16 1999-03-09 Sony Corporation Apparatus for optimizing the performance of a power amplifier
US6008698A (en) * 1998-05-18 1999-12-28 Omnipoint Corporation Amplifier with dynamically adaptable supply current
US6407639B1 (en) * 1998-06-03 2002-06-18 Koninklijke Philips Electronics N.V. Radio frequency device including a power amplifier circuit and a stabilizer circuit, and mobile transceiver terminal including such a device
US6329879B1 (en) * 1998-11-12 2001-12-11 Hitachi, Ltd. High frequency power amplifier system and wireless communication system
US6255906B1 (en) * 1999-09-30 2001-07-03 Conexant Systems, Inc. Power amplifier operated as an envelope digital to analog converter with digital pre-distortion
US6417734B1 (en) * 2000-06-26 2002-07-09 Koninklijke Philips Electronics N.V. High-frequency amplifier circuit with negative impedance cancellation
US6351189B1 (en) * 2000-07-31 2002-02-26 Nokia Networks Oy System and method for auto-bias of an amplifier
US6437647B1 (en) * 2001-01-30 2002-08-20 Conexant Systems, Inc. Current mirror compensation system for power amplifiers
US6785521B2 (en) * 2001-03-21 2004-08-31 Ericsson Inc. System and method for current-mode amplitude modulation
US6665525B2 (en) * 2001-05-29 2003-12-16 Ericsson Inc. High-level modulation method and apparatus
US6566944B1 (en) * 2002-02-21 2003-05-20 Ericsson Inc. Current modulator with dynamic amplifier impedance compensation
US6727760B2 (en) * 2002-05-01 2004-04-27 Agilent Technologies, Inc. Output power control system

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Publication number Publication date
EP1776753B1 (en) 2013-05-15
US20050032488A1 (en) 2005-02-10
JP2008506337A (ja) 2008-02-28
ES2425038T3 (es) 2013-10-11
KR101124914B1 (ko) 2012-03-28
CN101015119B (zh) 2012-03-28
AU2005271920A1 (en) 2006-02-16
HK1110707A1 (en) 2008-07-18
EP1776753A1 (en) 2007-04-25
BRPI0513270A (pt) 2008-05-06
US7333778B2 (en) 2008-02-19
KR20070050917A (ko) 2007-05-16
CA2573862C (en) 2014-09-09
WO2006017202A1 (en) 2006-02-16
CN101015119A (zh) 2007-08-08
CA2573862A1 (en) 2006-02-16
JP4646981B2 (ja) 2011-03-09

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