JP2010538540A5 - - Google Patents

Download PDF

Info

Publication number
JP2010538540A5
JP2010538540A5 JP2010522998A JP2010522998A JP2010538540A5 JP 2010538540 A5 JP2010538540 A5 JP 2010538540A5 JP 2010522998 A JP2010522998 A JP 2010522998A JP 2010522998 A JP2010522998 A JP 2010522998A JP 2010538540 A5 JP2010538540 A5 JP 2010538540A5
Authority
JP
Japan
Prior art keywords
signal
circuit
supply voltage
offset
power
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2010522998A
Other languages
English (en)
Japanese (ja)
Other versions
JP2010538540A (ja
JP5489172B2 (ja
Filing date
Publication date
Priority claimed from US11/849,124 external-priority patent/US7941110B2/en
Application filed filed Critical
Publication of JP2010538540A publication Critical patent/JP2010538540A/ja
Publication of JP2010538540A5 publication Critical patent/JP2010538540A5/ja
Application granted granted Critical
Publication of JP5489172B2 publication Critical patent/JP5489172B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2010522998A 2007-08-31 2008-07-17 適切な条件の下で信号電力を低減する制御ユニットを有するｒｆ回路 Active JP5489172B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/849,124 2007-08-31
US11/849,124 US7941110B2 (en) 2007-07-23 2007-08-31 RF circuit with control unit to reduce signal power under appropriate conditions
PCT/US2008/070327 WO2009032408A1 (en) 2007-08-31 2008-07-17 Rf circuit with control unit to reduce signal power under appropriate conditions

Publications (3)

Publication Number Publication Date
JP2010538540A JP2010538540A (ja) 2010-12-09
JP2010538540A5 true JP2010538540A5 (https=) 2011-09-01
JP5489172B2 JP5489172B2 (ja) 2014-05-14

Family

ID=40295831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010522998A Active JP5489172B2 (ja) 2007-08-31 2008-07-17 適切な条件の下で信号電力を低減する制御ユニットを有するｒｆ回路

Country Status (4)

Country Link
US (1) US7941110B2 (https=)
JP (1) JP5489172B2 (https=)
KR (1) KR101502644B1 (https=)
WO (1) WO2009032408A1 (https=)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8854019B1 (en) 2008-09-25 2014-10-07 Rf Micro Devices, Inc. Hybrid DC/DC power converter with charge-pump and buck converter
US8554136B2 (en) 2008-12-23 2013-10-08 Waveconnex, Inc. Tightly-coupled near-field communication-link connector-replacement chips
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
US8548398B2 (en) 2010-02-01 2013-10-01 Rf Micro Devices, Inc. Envelope power supply calibration of a multi-mode radio frequency power amplifier
US8538355B2 (en) 2010-04-19 2013-09-17 Rf Micro Devices, Inc. Quadrature power amplifier architecture
US8559898B2 (en) 2010-04-20 2013-10-15 Rf Micro Devices, Inc. Embedded RF PA temperature compensating bias transistor
US9577590B2 (en) 2010-04-20 2017-02-21 Qorvo Us, Inc. Dual inductive element charge pump buck and buck power supplies
US8706063B2 (en) 2010-04-20 2014-04-22 Rf Micro Devices, Inc. PA envelope power supply undershoot compensation
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
US8811920B2 (en) 2010-04-20 2014-08-19 Rf Micro Devices, Inc. DC-DC converter semiconductor die structure
US9048787B2 (en) 2010-04-20 2015-06-02 Rf Micro Devices, Inc. Combined RF detector and RF attenuator with concurrent outputs
US8983410B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Configurable 2-wire/3-wire serial communications interface
US9077405B2 (en) 2010-04-20 2015-07-07 Rf Micro Devices, Inc. High efficiency path based power amplifier circuitry
US8699973B2 (en) * 2010-04-20 2014-04-15 Rf Micro Devices, Inc. PA bias power supply efficiency optimization
US8571492B2 (en) 2010-04-20 2013-10-29 Rf Micro Devices, Inc. DC-DC converter current sensing
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
US8731498B2 (en) 2010-04-20 2014-05-20 Rf Micro Devices, Inc. Temperature correcting an envelope power supply signal for RF PA circuitry
US8892063B2 (en) 2010-04-20 2014-11-18 Rf Micro Devices, Inc. Linear mode and non-linear mode quadrature PA circuitry
US8565694B2 (en) 2010-04-20 2013-10-22 Rf Micro Devices, Inc. Split current current digital-to-analog converter (IDAC) for dynamic device switching (DDS) of an RF PA stage
US8942651B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. Cascaded converged power amplifier
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
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US9214900B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Interference reduction between RF communications bands
US8913971B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Selecting PA bias levels of RF PA circuitry during a multislot burst
US8515361B2 (en) 2010-04-20 2013-08-20 Rf Micro Devices, Inc. Frequency correction of a programmable frequency oscillator by propagation delay compensation
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US8542061B2 (en) 2010-04-20 2013-09-24 Rf Micro Devices, Inc. Charge pump based power amplifier envelope power supply and bias power supply
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US9553550B2 (en) 2010-04-20 2017-01-24 Qorvo Us, Inc. Multiband RF switch ground isolation
US8811921B2 (en) 2010-04-20 2014-08-19 Rf Micro Devices, Inc. Independent PA biasing of a driver stage and a final stage
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
US9008597B2 (en) 2010-04-20 2015-04-14 Rf Micro Devices, Inc. Direct current (DC)-DC converter having a multi-stage output filter
US8712349B2 (en) 2010-04-20 2014-04-29 Rf Micro Devices, Inc. Selecting a converter operating mode of a PA envelope power supply
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US9900204B2 (en) 2010-04-20 2018-02-20 Qorvo Us, Inc. Multiple functional equivalence digital communications interface
US9214865B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Voltage compatible charge pump buck and buck power supplies
US8947157B2 (en) 2010-04-20 2015-02-03 Rf Micro Devices, Inc. Voltage multiplier charge pump buck
US8611836B2 (en) * 2010-08-25 2013-12-17 Skyworks Solutions, Inc. Amplifier gain adjustment in response to reduced supply voltage
EP2689492B1 (en) 2011-03-24 2020-01-08 Keyssa, Inc. Integrated circuit with electromagnetic communication
US8811526B2 (en) 2011-05-31 2014-08-19 Keyssa, Inc. Delta modulated low power EHF communication link
TWI569031B (zh) 2011-06-15 2017-02-01 奇沙公司 使用ｅｈｆ信號的近端感測與距離量測
TWI562555B (en) 2011-10-21 2016-12-11 Keyssa Inc Contactless signal splicing
US9065505B2 (en) 2012-01-31 2015-06-23 Rf Micro Devices, Inc. Optimal switching frequency for envelope tracking power supply
US9515365B2 (en) 2012-08-10 2016-12-06 Keyssa, Inc. Dielectric coupling systems for EHF communications
EP2896135B1 (en) 2012-09-14 2019-08-14 Keyssa, Inc. Wireless connections with virtual hysteresis
WO2014100058A1 (en) 2012-12-17 2014-06-26 Waveconnex, Inc. Modular electronics
US20220139137A1 (en) * 2013-02-07 2022-05-05 Ikeyless, Llc System, method and apparatus for multi-vendor rolling code keyless entry and for identifying and storing key information and creating duplicate keys and remote entry devices
KR20150132459A (ko) 2013-03-15 2015-11-25 키사, 아이엔씨. Ehf 보안 통신 장치
KR101886739B1 (ko) * 2013-03-15 2018-08-09 키사, 아이엔씨. 극고주파 통신 칩
US9483068B2 (en) * 2013-04-19 2016-11-01 Nvidia Corporation Estimating and monitoring the effects of transistor aging
CN104104399B (zh) * 2014-07-10 2016-06-29 哈尔滨海能达科技有限公司 一种无线通信系统及其发射模块
CN108990140B (zh) * 2018-08-31 2021-08-17 北京小米移动软件有限公司 确定射频功率的方法及电子设备
US11338811B2 (en) * 2019-09-05 2022-05-24 Aptiv Technologies Limited Mode selector module for a vehicle component

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518155A (en) 1978-07-25 1980-02-08 Nec Corp Power amplifier
US5192919A (en) 1991-10-03 1993-03-09 Motorola, Inc. Transmitter having a temperature adjusted power amplifier
US5524285A (en) 1993-11-02 1996-06-04 Wray; Anthony J. Radio transmitter with power amplifier and linearization
JPH0946264A (ja) 1995-07-26 1997-02-14 Oki Electric Ind Co Ltd 線形変調無線送受信装置及びその電力制御方法
US6008698A (en) * 1998-05-18 1999-12-28 Omnipoint Corporation Amplifier with dynamically adaptable supply current
US6430402B1 (en) * 1998-09-14 2002-08-06 Conexant Systems, Inc. Power amplifier saturation prevention method, apparatus, and communication system incorporating the same
US20020065062A1 (en) * 1998-09-25 2002-05-30 Christian Levesque Automatic gsm mobile power
FR2813487B1 (fr) * 2000-08-31 2002-11-29 Cit Alcatel Procede et dispositif de controle de l'amplification du signal emis par un terminal mobile permettant d'augmenter l'autonomie dudit terminal mobile
JP3477177B2 (ja) 2001-03-02 2003-12-10 株式会社東芝 無線機及び利得制御回路
US7062237B2 (en) * 2001-06-05 2006-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Power amplifier (PA) with improved power regulation
US7058139B2 (en) 2001-11-16 2006-06-06 Koninklijke Philips Electronics N.V. Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
JP2004187467A (ja) * 2002-12-06 2004-07-02 Century Corp 携帯電話用の臨時電源
US6903608B2 (en) 2003-10-30 2005-06-07 Sige Semiconductor Inc. Power level controlling of first amplification stage for an integrated RF power amplifier
US7215972B2 (en) 2003-12-09 2007-05-08 Freescale Semiconductor, Inc. Adaptive transmit power control system
US20050227646A1 (en) * 2004-03-18 2005-10-13 Ryo Yamazaki Detecting and maintaining linearity in a power amplifier system through comparing peak and RMS power levels
US7539466B2 (en) 2004-12-14 2009-05-26 Motorola, Inc. Amplifier with varying supply voltage and input attenuation based upon supply voltage
US7224215B2 (en) 2004-12-28 2007-05-29 Sony Ericsson Mobile Communications Ab Intelligent RF power control for wireless modem devices
JP2007116651A (ja) * 2005-09-22 2007-05-10 Renesas Technology Corp 高周波電力増幅用電子部品および無線通信装置
JP5150061B2 (ja) * 2006-04-13 2013-02-20 日本電気株式会社 信号処理回路

Similar Documents

Publication Publication Date Title
JP2010538540A5 (https=)
CN102740431B (zh) 用于控制无线通信设备的信号发射的方法和系统
CN103873985A (zh) 用以确定并限制扩音器的音圈的温度的对扩音器的输入信号的直接测量
US9451358B2 (en) System and method for adjusting microphone functionality
US20140077875A1 (en) High efficiency and high linearity adaptive power amplifier for signals with high papr
EP4220950A3 (en) Power management architecture for modulated and constant supply operation
WO2009006578A3 (en) Systems and methods for saturation detection and correction in a power control loop
ATE488909T1 (de) System und verfahren zur bereitstellung eines senders zur polaren modulation und zur linearisierung eines stromverstärkers
WO2009007322A3 (de) Wiedergabeeinrichtung und verfahren zum kalibrieren einer wiedergabeeinrichtung
WO2008027295A3 (en) Adaptive predistortion for controlling an open loop power amplifier
WO2008084800A1 (ja) 受信装置及び受信方法
CN101771386B (zh) 具有抗饱和失真电路的d类音频功率放大器
EP2887346B1 (en) Intelligent electronic horn and implementation method therefor
CN104469952A (zh) 基于最优功率分离的无线信能同传中继网络中的传输方法
WO2009142903A3 (en) Rms detector with automatic gain control
ITMI20102438A1 (it) Miscelatore per telecomunicazioni
WO2008002925A3 (en) Early energy measurement
WO2011095858A3 (ja) 電力監視システム
WO2012084196A3 (en) Responsive load system and method
EP2547082A4 (en) MOBILE COMMUNICATION TERMINAL, METHOD FOR CONTROLLING POWER CONSUMPTION OF MOBILE COMMUNICATION TERMINAL, AND RECORDING MEDIUM
CN103634890B (zh) Dpd功放产品功率定标方法和装置
CN105554640A (zh) 音响设备及环绕声音响系统
CN202748398U (zh) 电压电流一体化变送器
CN202261182U (zh) 一种射频agc电路
CN203325212U (zh) 用于锂电池管理系统的单点电压模块红外通信电路