JP2016538761A5 - - Google Patents

Download PDF

Info

Publication number
JP2016538761A5
JP2016538761A5 JP2016523993A JP2016523993A JP2016538761A5 JP 2016538761 A5 JP2016538761 A5 JP 2016538761A5 JP 2016523993 A JP2016523993 A JP 2016523993A JP 2016523993 A JP2016523993 A JP 2016523993A JP 2016538761 A5 JP2016538761 A5 JP 2016538761A5
Authority
JP
Japan
Prior art keywords
envelope
input
power amplifier
path
signal
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.)
Ceased
Application number
JP2016523993A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016538761A (ja
Filing date
Publication date
Priority claimed from GB1318524.4A external-priority patent/GB2519361B/en
Application filed filed Critical
Publication of JP2016538761A publication Critical patent/JP2016538761A/ja
Publication of JP2016538761A5 publication Critical patent/JP2016538761A5/ja
Ceased legal-status Critical Current

Links

JP2016523993A 2013-10-21 2014-10-20 包絡線追跡システムのための包絡線経路内の信号の減らされた帯域幅 Ceased JP2016538761A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1318524.4A GB2519361B (en) 2013-10-21 2013-10-21 Reduced bandwidth of signal in an envelope path for envelope tracking system
GB1318524.4 2013-10-21
PCT/EP2014/072447 WO2015059096A1 (en) 2013-10-21 2014-10-20 Reduced bandwidth of signal in an envelope path for envelope tracking system

Publications (2)

Publication Number Publication Date
JP2016538761A JP2016538761A (ja) 2016-12-08
JP2016538761A5 true JP2016538761A5 (https=) 2017-11-16

Family

ID=49727058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016523993A Ceased JP2016538761A (ja) 2013-10-21 2014-10-20 包絡線追跡システムのための包絡線経路内の信号の減らされた帯域幅

Country Status (7)

Country Link
US (1) US9350302B2 (https=)
EP (1) EP3061184B1 (https=)
JP (1) JP2016538761A (https=)
KR (1) KR20160074551A (https=)
CN (1) CN105684300A (https=)
GB (1) GB2519361B (https=)
WO (1) WO2015059096A1 (https=)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102037551B1 (ko) * 2012-03-04 2019-10-28 퀀탄스, 인코포레이티드 지연 보정을 갖는 포락선 추적 전력 증폭 시스템
US9271236B2 (en) 2013-03-14 2016-02-23 Quantance, Inc. ET system with adjustment for noise
US9270239B2 (en) 2013-03-15 2016-02-23 Quantance, Inc. Envelope tracking system with internal power amplifier characterization
KR20160027302A (ko) * 2014-08-28 2016-03-10 한국전자통신연구원 반송파 집성과 포락선 추적을 지원하는 rf 송신기
WO2016030651A1 (en) * 2014-08-29 2016-03-03 Toshiba Research Europe Limited Timing alignment sensitivity for envelope tracking
JP2016082549A (ja) * 2014-10-22 2016-05-16 富士通株式会社 ピーク抑圧装置
US9391649B2 (en) * 2014-11-17 2016-07-12 Microsoft Technology Licensing, Llc Envelope shaping in envelope tracking power amplification
US9590668B1 (en) 2015-11-30 2017-03-07 NanoSemi Technologies Digital compensator
CA3009761C (en) * 2015-12-29 2024-06-11 Blue Danube Systems, Inc. Multi-beam crest factor reduction
US10812166B2 (en) 2016-10-07 2020-10-20 Nanosemi, Inc. Beam steering digital predistortion
KR20190121825A (ko) 2017-02-25 2019-10-28 나노세미, 인크. 멀티밴드 디지털 전치왜곡기
CN108540098B (zh) * 2017-03-06 2021-04-06 中兴通讯股份有限公司 一种包络跟踪方法和移动终端
US10141961B1 (en) 2017-05-18 2018-11-27 Nanosemi, Inc. Passive intermodulation cancellation
KR102454810B1 (ko) * 2017-05-26 2022-10-13 삼성전기주식회사 옵셋 제거 기능을 갖는 엔벨로프-추적 전류 바이어스 회로
US10581470B2 (en) 2017-06-09 2020-03-03 Nanosemi, Inc. Linearization system
US10931318B2 (en) * 2017-06-09 2021-02-23 Nanosemi, Inc. Subsampled linearization system
US11115067B2 (en) 2017-06-09 2021-09-07 Nanosemi, Inc. Multi-band linearization system
US11323188B2 (en) 2017-07-12 2022-05-03 Nanosemi, Inc. Monitoring systems and methods for radios implemented with digital predistortion
US11303251B2 (en) 2017-10-02 2022-04-12 Nanosemi, Inc. Digital predistortion adjustment based on determination of load condition characteristics
FR3080723B1 (fr) * 2018-04-25 2021-08-06 Wupatec Systeme et procede de linearisation en bande de base pour un amplificateur de puissance radiofrequence de classe g
JP2021523629A (ja) 2018-05-11 2021-09-02 ナノセミ, インク.Nanosemi, Inc. 非線形システム用デジタル補償器
US10644657B1 (en) 2018-05-11 2020-05-05 Nanosemi, Inc. Multi-band digital compensator for a non-linear system
US11863210B2 (en) 2018-05-25 2024-01-02 Nanosemi, Inc. Linearization with level tracking
CN112640299B (zh) 2018-05-25 2024-11-12 纳诺塞米有限公司 用于数字预失真的方法、用于执行数字预失真的线性化系统和非暂时性机器可读介质
US10931238B2 (en) 2018-05-25 2021-02-23 Nanosemi, Inc. Linearization with envelope tracking or average power tracking
EP3804249A4 (en) 2018-05-29 2022-01-26 Telefonaktiebolaget LM Ericsson (publ) METHOD AND APPARATUS FOR SHAPING MULTI-CARRIER SIGNAL ENVELOPE IN ENVELOPE TRACKING TRANSMISSION
US10873301B2 (en) * 2019-04-08 2020-12-22 Qorvo Us, Inc. Dual-input voltage memory digital pre-distortion circuit and related envelope tracking apparatus
WO2020209421A1 (ko) * 2019-04-11 2020-10-15 엘지전자 주식회사 엔벨로프 트래킹을 지원하는 전자기기 및 그 전자기기의 제어 방법
US10992326B1 (en) 2020-05-19 2021-04-27 Nanosemi, Inc. Buffer management for adaptive digital predistortion

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778307A (en) * 1996-03-29 1998-07-07 Motorola, Inc. Amplifier with adaptive output allocation and method thereof
US5886572A (en) * 1997-07-25 1999-03-23 Motorola, Inc. Method and apparatus for reducing distortion in a power amplifier
US6931053B2 (en) * 1998-11-27 2005-08-16 Nortel Networks Limited Peak power and envelope magnitude regulators and CDMA transmitters featuring such regulators
EP1210765B1 (en) * 1999-07-28 2007-03-07 Clear Audio Ltd. Filter banked gain control of audio in a noisy environment
JP4473388B2 (ja) * 1999-12-17 2010-06-02 アロカ株式会社 超音波診断装置
CN1166053C (zh) * 2001-05-08 2004-09-08 华为技术有限公司 自适应射频数字预失真线性化方法及其电路
US6822523B2 (en) * 2002-08-28 2004-11-23 Motorola, Inc. Power modulator and method of operating a power modulator
JP2004120451A (ja) * 2002-09-27 2004-04-15 Hitachi Kokusai Electric Inc 増幅装置
US7336725B2 (en) * 2004-03-03 2008-02-26 Powerwave Technologies, Inc. Digital predistortion system and method for high efficiency transmitters
US8611835B2 (en) * 2005-05-20 2013-12-17 Qualcomm Incorporated Method and apparatus for sensing the envelope of high level multi frequency band RF signals
US7782132B2 (en) * 2005-09-26 2010-08-24 Paragon Communications Ltd. Method and apparatus for improving the performance of MIMO wireless systems
US20090015295A1 (en) * 2007-07-11 2009-01-15 Axiom Microdevices, Inc. Envelope detector having reduced harmonic interference
US8159295B2 (en) * 2009-05-21 2012-04-17 The Regents Of The University Of California Supply-modulated RF power amplifier and RF amplification methods
JP2011250166A (ja) * 2010-05-27 2011-12-08 Panasonic Corp 送信回路、通信機器、及び、送信方法
US8565342B2 (en) * 2010-06-22 2013-10-22 Sony Corporation Power amplification apparatus, OFDM modulation apparatus, wireless transmission apparatus, and distortion reduction method for power amplification apparatus
US8774065B2 (en) * 2011-05-02 2014-07-08 Rf Micro Devices, Inc. Radio front end and power management architecture for LTE-advanced
GB2488380B (en) * 2011-06-24 2018-04-04 Snaptrack Inc Envelope tracking system for mimo
US9432946B2 (en) * 2012-03-12 2016-08-30 Nec Corporation Transmission apparatus and transmission method
GB2500705B (en) * 2012-03-30 2019-04-17 Snaptrack Inc Dynamic characterisation of amplifier AM-PM distortion
US8841968B2 (en) * 2012-09-26 2014-09-23 Broadcom Corporation Class-AB radio frequency amplifier for envelope detector
US9178476B2 (en) * 2012-09-26 2015-11-03 Broadcom Corporation Envelope detector with enhanced linear range
KR101389880B1 (ko) * 2012-10-31 2014-05-07 한국과학기술원 포락선 검출 궤환 방식의 저비용 디지털 전치왜곡 장치 및 그 방법
US9065509B1 (en) * 2014-01-09 2015-06-23 Mediatek Inc. Methods and apparatus for envelope tracking system

Similar Documents

Publication Publication Date Title
JP2016538761A5 (https=)
WO2016124707A3 (en) Doherty amplifier
MX2019006681A (es) Aparato de audio y metodo de provision de audio del mismo.
MY179136A (en) Apparatus and method for multichannel direct-ambient decomposition for audio signal processing
WO2015176077A3 (en) Systems and methods related to linear and efficient broadband power amplifiers
PT3216236T (pt) Aparelho e método para gerar sinais de saída com base num sinal de fonte de áudio, sistema de reprodução de som e sinal de altifalante
PH12016501396B1 (en) Harmonic bandwidth extension of audio signals
MX2016000909A (es) Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa.
GB202001834D0 (en) Radiofrequency power amplifier module having high linearity and power-added efficiency and implmentation method
JP2016513931A5 (https=)
MX360555B (es) Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos.
EA201992556A1 (ru) Аудиодекодер и способ декодирования
WO2015119628A3 (en) Mems-based audio speaker system using single sideband modulation
NZ745415A (en) Subband spatial and crosstalk cancellation for audio reproduction
PH12015501516A1 (en) System and methods of performing filtering for gain determination
JP2016530794A5 (https=)
WO2013019019A3 (en) Audio signal processing method and audio signal processing apparatus therefor
MX374503B (es) Sistema de sonido
MY176045A (en) Digital upconversion for multi-band multi-order power amplifiers
CL2015003739A1 (es) Método de decodificación y aparato de decodificación
TW201613287A (en) Transmitter and method of processing transmission signals
WO2015176645A3 (en) Phase-modulated load apparatus and method
TW201612897A (en) Methods and systems for media capture and formatting
DK3628650T3 (da) Fremgangsmåde og anlæg til genanvendelse af et ammonium-, phosphat- og faststofholdigt medium
MY177671A (en) Data processing method and terminal thereof