US5394036A
(en)
*
|
1994-01-03 |
1995-02-28 |
Motorola, Inc. |
Circuit and method of zero generation in a real-time filter
|
JP3318725B2
(ja)
*
|
1994-01-12 |
2002-08-26 |
株式会社日立製作所 |
アナログフィルタ回路
|
JP3005413B2
(ja)
*
|
1994-01-26 |
2000-01-31 |
三洋電機株式会社 |
フィルタ回路
|
GB9415120D0
(en)
*
|
1994-07-27 |
1994-09-14 |
Philips Electronics Uk Ltd |
Improvements in or relating to zero IF receivers
|
JP3151376B2
(ja)
*
|
1995-04-26 |
2001-04-03 |
株式会社東芝 |
フィルタ回路
|
US5952877A
(en)
*
|
1997-11-21 |
1999-09-14 |
International Business Machines Corporation |
Integrated resistor for continuous time signal processing applications
|
US6072360A
(en)
*
|
1997-11-24 |
2000-06-06 |
Mccullough; Rob |
Analog sampling filters
|
FR2778512B1
(fr)
*
|
1998-05-11 |
2000-08-04 |
Sgs Thomson Microelectronics |
Filtre passe-bande a transconducteurs
|
US6157248A
(en)
*
|
1998-05-20 |
2000-12-05 |
Matsushita Electric Industrial Co., Ltd. |
Active filter circuit
|
US6310512B1
(en)
|
1999-11-22 |
2001-10-30 |
Cardiac Pacemakers, Inc. |
Integrated self-adjustable continuous time band pass filter based upon Gm cell with bipolar transistors
|
JP3579286B2
(ja)
*
|
1999-03-11 |
2004-10-20 |
株式会社東芝 |
アクティブフィルタ回路
|
US6278263B1
(en)
|
1999-09-01 |
2001-08-21 |
Intersil Corporation |
Multi-phase converter with balanced currents
|
US6630860B1
(en)
|
2000-09-20 |
2003-10-07 |
Applied Micro Circuits Corporation |
Programmable phase locked-loop filter architecture for a range selectable bandwidth
|
KR20020073619A
(ko)
*
|
2001-03-15 |
2002-09-28 |
최윤식 |
교통신호기의 서지전압 투입 방지회로
|
EP1248354A1
(en)
*
|
2001-04-06 |
2002-10-09 |
Intersil Corporation |
Multi-phase converter with balanced currents
|
US6930544B2
(en)
*
|
2003-03-07 |
2005-08-16 |
Matsushita Electric Industrial Co., Ltd. |
Filter
|
EP1513253A1
(en)
*
|
2003-09-05 |
2005-03-09 |
Semiconductor Ideas to The Market (ItoM) BV |
Programmable high precision filter
|
CN1633028B
(zh)
*
|
2005-01-25 |
2010-04-28 |
威盛电子股份有限公司 |
锁相回路和其应用的回路滤波器
|
JP2009105727A
(ja)
*
|
2007-10-24 |
2009-05-14 |
Sanyo Electric Co Ltd |
Fm受信機
|
US9112452B1
(en)
|
2009-07-14 |
2015-08-18 |
Rf Micro Devices, Inc. |
High-efficiency power supply for a modulated load
|
US9099961B2
(en)
|
2010-04-19 |
2015-08-04 |
Rf Micro Devices, Inc. |
Output impedance compensation of a pseudo-envelope follower power management system
|
US9431974B2
(en)
|
2010-04-19 |
2016-08-30 |
Qorvo Us, Inc. |
Pseudo-envelope following feedback delay compensation
|
EP3376667B1
(en)
|
2010-04-19 |
2021-07-28 |
Qorvo US, Inc. |
Pseudo-envelope following power management system
|
US8981848B2
(en)
|
2010-04-19 |
2015-03-17 |
Rf Micro Devices, Inc. |
Programmable delay circuitry
|
US8461917B2
(en)
*
|
2010-06-25 |
2013-06-11 |
Chung Yuan Christian University |
Complimentary single-ended-input OTA-C universal filter structures
|
WO2012047738A1
(en)
|
2010-09-29 |
2012-04-12 |
Rf Micro Devices, Inc. |
SINGLE μC-BUCKBOOST CONVERTER WITH MULTIPLE REGULATED SUPPLY OUTPUTS
|
US9075673B2
(en)
|
2010-11-16 |
2015-07-07 |
Rf Micro Devices, Inc. |
Digital fast dB to gain multiplier for envelope tracking systems
|
US8942313B2
(en)
|
2011-02-07 |
2015-01-27 |
Rf Micro Devices, Inc. |
Group delay calibration method for power amplifier envelope tracking
|
US9246460B2
(en)
|
2011-05-05 |
2016-01-26 |
Rf Micro Devices, Inc. |
Power management architecture for modulated and constant supply operation
|
US9379667B2
(en)
|
2011-05-05 |
2016-06-28 |
Rf Micro Devices, Inc. |
Multiple power supply input parallel amplifier based envelope tracking
|
US9247496B2
(en)
|
2011-05-05 |
2016-01-26 |
Rf Micro Devices, Inc. |
Power loop control based envelope tracking
|
WO2012166992A1
(en)
|
2011-05-31 |
2012-12-06 |
Rf Micro Devices, Inc. |
Rugged iq receiver based rf gain measurements
|
US9019011B2
(en)
|
2011-06-01 |
2015-04-28 |
Rf Micro Devices, Inc. |
Method of power amplifier calibration for an envelope tracking system
|
US8760228B2
(en)
|
2011-06-24 |
2014-06-24 |
Rf Micro Devices, Inc. |
Differential power management and power amplifier architecture
|
US8952710B2
(en)
|
2011-07-15 |
2015-02-10 |
Rf Micro Devices, Inc. |
Pulsed behavior modeling with steady state average conditions
|
US8792840B2
(en)
|
2011-07-15 |
2014-07-29 |
Rf Micro Devices, Inc. |
Modified switching ripple for envelope tracking system
|
US9263996B2
(en)
|
2011-07-20 |
2016-02-16 |
Rf Micro Devices, Inc. |
Quasi iso-gain supply voltage function for envelope tracking systems
|
CN103858338B
(zh)
|
2011-09-02 |
2016-09-07 |
射频小型装置公司 |
用于包络跟踪的分离vcc和共同vcc功率管理架构
|
US8957728B2
(en)
*
|
2011-10-06 |
2015-02-17 |
Rf Micro Devices, Inc. |
Combined filter and transconductance amplifier
|
WO2013063387A2
(en)
|
2011-10-26 |
2013-05-02 |
Rf Micro Devices, Inc. |
Inductance based parallel amplifier phase compensation
|
US9484797B2
(en)
|
2011-10-26 |
2016-11-01 |
Qorvo Us, Inc. |
RF switching converter with ripple correction
|
CN103988406B
(zh)
|
2011-10-26 |
2017-03-01 |
Qorvo美国公司 |
射频(rf)开关转换器以及使用rf开关转换器的rf放大装置
|
US9024688B2
(en)
|
2011-10-26 |
2015-05-05 |
Rf Micro Devices, Inc. |
Dual parallel amplifier based DC-DC converter
|
US9515621B2
(en)
|
2011-11-30 |
2016-12-06 |
Qorvo Us, Inc. |
Multimode RF amplifier system
|
US9250643B2
(en)
|
2011-11-30 |
2016-02-02 |
Rf Micro Devices, Inc. |
Using a switching signal delay to reduce noise from a switching power supply
|
US8975959B2
(en)
|
2011-11-30 |
2015-03-10 |
Rf Micro Devices, Inc. |
Monotonic conversion of RF power amplifier calibration data
|
US9041365B2
(en)
|
2011-12-01 |
2015-05-26 |
Rf Micro Devices, Inc. |
Multiple mode RF power converter
|
US8947161B2
(en)
|
2011-12-01 |
2015-02-03 |
Rf Micro Devices, Inc. |
Linear amplifier power supply modulation for envelope tracking
|
US9256234B2
(en)
|
2011-12-01 |
2016-02-09 |
Rf Micro Devices, Inc. |
Voltage offset loop for a switching controller
|
US9280163B2
(en)
|
2011-12-01 |
2016-03-08 |
Rf Micro Devices, Inc. |
Average power tracking controller
|
US9494962B2
(en)
|
2011-12-02 |
2016-11-15 |
Rf Micro Devices, Inc. |
Phase reconfigurable switching power supply
|
US9813036B2
(en)
|
2011-12-16 |
2017-11-07 |
Qorvo Us, Inc. |
Dynamic loadline power amplifier with baseband linearization
|
US9298198B2
(en)
|
2011-12-28 |
2016-03-29 |
Rf Micro Devices, Inc. |
Noise reduction for envelope tracking
|
US8981839B2
(en)
|
2012-06-11 |
2015-03-17 |
Rf Micro Devices, Inc. |
Power source multiplexer
|
CN104662792B
(zh)
|
2012-07-26 |
2017-08-08 |
Qorvo美国公司 |
用于包络跟踪的可编程rf陷波滤波器
|
US9225231B2
(en)
|
2012-09-14 |
2015-12-29 |
Rf Micro Devices, Inc. |
Open loop ripple cancellation circuit in a DC-DC converter
|
US9197256B2
(en)
|
2012-10-08 |
2015-11-24 |
Rf Micro Devices, Inc. |
Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal
|
WO2014062902A1
(en)
|
2012-10-18 |
2014-04-24 |
Rf Micro Devices, Inc |
Transitioning from envelope tracking to average power tracking
|
US9627975B2
(en)
|
2012-11-16 |
2017-04-18 |
Qorvo Us, Inc. |
Modulated power supply system and method with automatic transition between buck and boost modes
|
WO2014116933A2
(en)
|
2013-01-24 |
2014-07-31 |
Rf Micro Devices, Inc |
Communications based adjustments of an envelope tracking power supply
|
US9178472B2
(en)
|
2013-02-08 |
2015-11-03 |
Rf Micro Devices, Inc. |
Bi-directional power supply signal based linear amplifier
|
WO2014152876A1
(en)
|
2013-03-14 |
2014-09-25 |
Rf Micro Devices, Inc |
Noise conversion gain limited rf power amplifier
|
WO2014152903A2
(en)
|
2013-03-14 |
2014-09-25 |
Rf Micro Devices, Inc |
Envelope tracking power supply voltage dynamic range reduction
|
US9479118B2
(en)
|
2013-04-16 |
2016-10-25 |
Rf Micro Devices, Inc. |
Dual instantaneous envelope tracking
|
US9374005B2
(en)
|
2013-08-13 |
2016-06-21 |
Rf Micro Devices, Inc. |
Expanded range DC-DC converter
|
US9614476B2
(en)
|
2014-07-01 |
2017-04-04 |
Qorvo Us, Inc. |
Group delay calibration of RF envelope tracking
|
US9843294B2
(en)
|
2015-07-01 |
2017-12-12 |
Qorvo Us, Inc. |
Dual-mode envelope tracking power converter circuitry
|
US9912297B2
(en)
|
2015-07-01 |
2018-03-06 |
Qorvo Us, Inc. |
Envelope tracking power converter circuitry
|
US9973147B2
(en)
|
2016-05-10 |
2018-05-15 |
Qorvo Us, Inc. |
Envelope tracking power management circuit
|
IT201700068559A1
(it)
*
|
2017-06-20 |
2018-12-20 |
Active Tech S R L |
Strumento elettronico per generare segnali elettrici
|
US10476437B2
(en)
|
2018-03-15 |
2019-11-12 |
Qorvo Us, Inc. |
Multimode voltage tracker circuit
|
CN109194304B
(zh)
*
|
2018-07-13 |
2023-02-14 |
厦门芯豪科技有限公司 |
一种适用于生理信号处理的带通滤波器
|