JP4921976B2 - 適応送信電力制御システム - Google Patents

適応送信電力制御システム Download PDF

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Publication number
JP4921976B2
JP4921976B2 JP2006543820A JP2006543820A JP4921976B2 JP 4921976 B2 JP4921976 B2 JP 4921976B2 JP 2006543820 A JP2006543820 A JP 2006543820A JP 2006543820 A JP2006543820 A JP 2006543820A JP 4921976 B2 JP4921976 B2 JP 4921976B2
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Japan
Prior art keywords
power
control system
adaptive filter
power control
ramp
Prior art date
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Expired - Fee Related
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JP2006543820A
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English (en)
Japanese (ja)
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JP2007514370A (ja
JP2007514370A5 (enExample
Inventor
プリマカンサン、プラビンクマー
ラーマン、マイバー
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Apple Inc
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Apple Inc
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Publication date
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Publication of JP2007514370A publication Critical patent/JP2007514370A/ja
Publication of JP2007514370A5 publication Critical patent/JP2007514370A5/ja
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals

Landscapes

  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Feedback Control In General (AREA)
JP2006543820A 2003-12-09 2004-11-04 適応送信電力制御システム Expired - Fee Related JP4921976B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/731,069 US7215972B2 (en) 2003-12-09 2003-12-09 Adaptive transmit power control system
US10/731,069 2003-12-09
PCT/US2004/037061 WO2005060451A2 (en) 2003-12-09 2004-11-04 Adaptive transmit power control system

Publications (3)

Publication Number Publication Date
JP2007514370A JP2007514370A (ja) 2007-05-31
JP2007514370A5 JP2007514370A5 (enExample) 2007-12-20
JP4921976B2 true JP4921976B2 (ja) 2012-04-25

Family

ID=34634289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006543820A Expired - Fee Related JP4921976B2 (ja) 2003-12-09 2004-11-04 適応送信電力制御システム

Country Status (5)

Country Link
US (1) US7215972B2 (enExample)
EP (1) EP1917714B1 (enExample)
JP (1) JP4921976B2 (enExample)
CN (1) CN100586207C (enExample)
WO (1) WO2005060451A2 (enExample)

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US20070223621A1 (en) * 2006-03-21 2007-09-27 M/A-Com, Inc. Method and apparatus for signal power ramp-up in a communication transmission
US7912151B1 (en) 2006-03-31 2011-03-22 Pmc-Sierra, Inc. Post-distortion filter for reducing sensitivity to receiver nonlinearities
US7609781B2 (en) * 2006-06-30 2009-10-27 St-Ericsson Sa Wireless communication device with self calibration feature for controlling power output
US7889810B2 (en) * 2006-12-15 2011-02-15 Pine Valley Investments, Inc. Method and apparatus for a nonlinear feedback control system
JP2008153972A (ja) * 2006-12-18 2008-07-03 Kenwood Corp 無線通信機
US7869543B2 (en) * 2007-03-13 2011-01-11 Pine Valley Investments, Inc. System and method for synchronization, power control, calibration, and modulation in communication transmitters
US8009765B2 (en) * 2007-03-13 2011-08-30 Pine Valley Investments, Inc. Digital polar transmitter
US8078094B1 (en) * 2007-03-21 2011-12-13 At&T Mobility Ii Llc Universal multi-purpose RF signal distribution system
US8208877B2 (en) * 2007-03-21 2012-06-26 Intel Corporation Digital modulator and method for initiating ramp power transitions in a mobile handset transmitter
US7941110B2 (en) * 2007-07-23 2011-05-10 Freescale Semiconductor, Inc. RF circuit with control unit to reduce signal power under appropriate conditions
US8068797B2 (en) * 2007-09-28 2011-11-29 Freescale Semiconductor, Inc. Gain control methods for wireless devices and transmitters
US7805116B2 (en) * 2007-09-28 2010-09-28 Freescale Semiconductor, Inc. Gain control methods for wireless devices and transmitters
JP4867891B2 (ja) * 2007-10-31 2012-02-01 アイコム株式会社 Ａｍ送信機及びその変調方法
US8081710B2 (en) * 2007-11-08 2011-12-20 Pine Valley Investments, Inc. System and method for corrected modulation with nonlinear power amplification
US7983359B2 (en) * 2008-02-07 2011-07-19 Pine Valley Investments, Inc. Synchronization techniques for polar transmitters
US8233852B2 (en) * 2008-04-04 2012-07-31 Pine Valley Investments, Inc. Calibration techniques for non-linear devices
US8000408B2 (en) * 2008-05-13 2011-08-16 Freescale Semiconductor, Inc. Loop delay and gain control methods in closed-loop transmitters and wireless devices
ES2586383T3 (es) * 2008-06-05 2016-10-14 Optis Wireless Technology, Llc Método y disposición en un sistema de comunicaciones celulares
US8284860B2 (en) * 2008-10-31 2012-10-09 Freescale Semiconductors, Inc. Error signal processing systems for generating a digital error signal from an analog error signal
US7872823B2 (en) * 2009-01-12 2011-01-18 Lsi Corporation AGC loop with weighted zero forcing and LMS error sources and methods for using such
US8320866B2 (en) * 2010-02-11 2012-11-27 Mediatek Singapore Pte. Ltd. Integrated circuits, communication units and methods of cancellation of intermodulation distortion
US8320868B2 (en) * 2010-02-11 2012-11-27 Mediatek Singapore Pte. Ltd. Integrated circuits, communication units and methods of cancellation of intermodulation distortion
US8565806B2 (en) 2010-12-12 2013-10-22 St-Ericsson Sa Real time transmission power control
CN102868385B (zh) * 2012-09-25 2015-07-08 北京东方联星科技有限公司 一种可配置系数的数字滤波器和实现方法
US9876501B2 (en) * 2013-05-21 2018-01-23 Mediatek Inc. Switching power amplifier and method for controlling the switching power amplifier
US8970287B1 (en) 2013-08-15 2015-03-03 Silicon Laboratories Inc. Apparatus and method of adjusting analog parameters for extended temperature operation
WO2016000981A1 (en) * 2014-06-30 2016-01-07 Koninklijke Philips N.V. Device management
US10547942B2 (en) 2015-12-28 2020-01-28 Samsung Electronics Co., Ltd. Control of electrodynamic speaker driver using a low-order non-linear model
US9923529B2 (en) * 2016-02-03 2018-03-20 Samsung Electronics Co., Ltd Customizable ramp-up and ramp-down amplitude profiles for a digital power amplifier (DPA) based transmitter
US10462565B2 (en) 2017-01-04 2019-10-29 Samsung Electronics Co., Ltd. Displacement limiter for loudspeaker mechanical protection
US10506347B2 (en) 2018-01-17 2019-12-10 Samsung Electronics Co., Ltd. Nonlinear control of vented box or passive radiator loudspeaker systems
US10701485B2 (en) 2018-03-08 2020-06-30 Samsung Electronics Co., Ltd. Energy limiter for loudspeaker protection
CN112703671B (zh) * 2018-06-19 2025-02-25 诺基亚技术有限公司 增益瞬态响应补偿
US10542361B1 (en) 2018-08-07 2020-01-21 Samsung Electronics Co., Ltd. Nonlinear control of loudspeaker systems with current source amplifier
US11012773B2 (en) 2018-09-04 2021-05-18 Samsung Electronics Co., Ltd. Waveguide for smooth off-axis frequency response
US10797666B2 (en) 2018-09-06 2020-10-06 Samsung Electronics Co., Ltd. Port velocity limiter for vented box loudspeakers
US11356773B2 (en) 2020-10-30 2022-06-07 Samsung Electronics, Co., Ltd. Nonlinear control of a loudspeaker with a neural network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003318747A (ja) * 2002-04-23 2003-11-07 Nec Corp 無線通信装置の送信制御装置及び方法

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US5278994A (en) 1991-06-03 1994-01-11 Motorola, Inc. Power amplifier saturation detection and correction method and apparatus
US5774785A (en) * 1996-06-20 1998-06-30 Telefonaktiebolaget Lm Ericsson Adaptive quality adjustment
EP1043834A1 (en) 1999-04-07 2000-10-11 Lucent Technologies Inc. Temperature Independent power control loop
US6160449A (en) 1999-07-22 2000-12-12 Motorola, Inc. Power amplifying circuit with load adjust for control of adjacent and alternate channel power
US6166598A (en) 1999-07-22 2000-12-26 Motorola, Inc. Power amplifying circuit with supply adjust to control adjacent and alternate channel power
CN1141809C (zh) * 1999-11-10 2004-03-10 深圳市中兴通讯股份有限公司 Wcdma基站中前向信道的基带信号处理装置
US6801784B1 (en) * 2000-11-02 2004-10-05 Skyworks Solutions, Inc. Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier
DE10124179A1 (de) * 2001-05-17 2002-07-25 Infineon Technologies Ag Vorrichtung und Verfahren zur Regelung der Ausgangsleistung von Mobilfunkstationen
US6701138B2 (en) * 2001-06-11 2004-03-02 Rf Micro Devices, Inc. Power amplifier control
CN1254119C (zh) * 2001-11-15 2006-04-26 华为技术有限公司 无线通信基带调制的多通道相位匹配控制方法与实现电路

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2003318747A (ja) * 2002-04-23 2003-11-07 Nec Corp 無線通信装置の送信制御装置及び方法

Also Published As

Publication number Publication date
WO2005060451A3 (en) 2006-05-04
EP1917714B1 (en) 2014-12-17
WO2005060451A2 (en) 2005-07-07
JP2007514370A (ja) 2007-05-31
US20050122166A1 (en) 2005-06-09
US7215972B2 (en) 2007-05-08
EP1917714A4 (en) 2008-09-03
CN100586207C (zh) 2010-01-27
EP1917714A2 (en) 2008-05-07
CN1947438A (zh) 2007-04-11

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