ATE425577T1 - System zur strommodus-amplitudenmodulation , und verfahren dazu - Google Patents

System zur strommodus-amplitudenmodulation , und verfahren dazu

Info

Publication number
ATE425577T1
ATE425577T1 AT02728466T AT02728466T ATE425577T1 AT E425577 T1 ATE425577 T1 AT E425577T1 AT 02728466 T AT02728466 T AT 02728466T AT 02728466 T AT02728466 T AT 02728466T AT E425577 T1 ATE425577 T1 AT E425577T1
Authority
AT
Austria
Prior art keywords
amplitude modulation
current mode
modulation system
power amplifier
mode amplitude
Prior art date
Application number
AT02728466T
Other languages
English (en)
Inventor
Aristotele Hadjichristos
David Pehlke
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
Application filed by Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ATE425577T1 publication Critical patent/ATE425577T1/de

Links

Classifications

    • 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
    • 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
    • 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
    • H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Amplitude Modulation (AREA)
  • Burglar Alarm Systems (AREA)
AT02728466T 2001-03-21 2002-03-11 System zur strommodus-amplitudenmodulation , und verfahren dazu ATE425577T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/813,593 US6785521B2 (en) 2001-03-21 2001-03-21 System and method for current-mode amplitude modulation

Publications (1)

Publication Number Publication Date
ATE425577T1 true ATE425577T1 (de) 2009-03-15

Family

ID=25212848

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02728466T ATE425577T1 (de) 2001-03-21 2002-03-11 System zur strommodus-amplitudenmodulation , und verfahren dazu

Country Status (7)

Country Link
US (1) US6785521B2 (de)
EP (1) EP1410494B1 (de)
JP (1) JP4166577B2 (de)
AT (1) ATE425577T1 (de)
DE (1) DE60231508D1 (de)
ES (1) ES2321697T3 (de)
WO (1) WO2002082633A2 (de)

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US6839549B2 (en) * 2000-12-14 2005-01-04 Ericsson Inc. System and method of RF power amplification
US7333778B2 (en) * 2001-03-21 2008-02-19 Ericsson Inc. System and method for current-mode amplitude modulation
GB2389275B (en) * 2002-05-31 2006-10-25 Hitachi Ltd Apparatus for mobile communication system
US7805115B1 (en) * 2003-06-02 2010-09-28 Analog Devices, Inc. Variable filter systems and methods for enhanced data rate communication systems
ATE347192T1 (de) 2003-12-12 2006-12-15 Freescale Semiconductor Inc Leistungsverstärkermodul und tdma-radio
US7023292B2 (en) * 2003-12-17 2006-04-04 Telefonaktiebolaget L.M. Dericsson Polar modulation using amplitude modulated quadrature signals
US6956727B1 (en) * 2004-01-21 2005-10-18 Analog Devices, Inc. High side current monitor with extended voltage range
JP2005229197A (ja) * 2004-02-10 2005-08-25 Matsushita Electric Ind Co Ltd 電力増幅器モジュール
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
DE102004060177B3 (de) * 2004-12-14 2006-05-11 Infineon Technologies Ag Polarmodulator und Verfahren zur Modulation eines Signals
DE202005012557U1 (de) * 2005-08-10 2006-12-21 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung und Verstelleinrichtung eines Kraftfahrzeugs
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US8301088B2 (en) * 2007-10-26 2012-10-30 Panasonic Corporation Polar modulation transmitter with envelope modulator path switching
GB2455066B (en) * 2007-11-15 2011-08-24 Samsung Electronics Co Ltd Mobile telecommunications device and method of operation
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US7701308B1 (en) 2008-11-10 2010-04-20 Raytheon Company Radio frequency modulator
DE102010040130A1 (de) * 2010-09-02 2012-03-08 Robert Bosch Gmbh Zeitgebermodul
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
CN106415435B (zh) 2013-09-17 2020-08-11 帕克维辛股份有限公司 用于呈现信息承载时间函数的方法、装置和系统
KR101855725B1 (ko) 2014-01-13 2018-06-20 삼성전자주식회사 오디오 출력 제어 방법 및 이를 지원하는 전자 장치
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
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

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US3895316A (en) 1973-08-29 1975-07-15 W P Instr Inc Complex tone modulation
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JPS5492005A (en) * 1977-12-29 1979-07-20 Sanyo Electric Co Ltd Automatic modulation factor control circuit of transmitter
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JPS5981113U (ja) 1982-11-25 1984-06-01 日本電気株式会社 出力電力制御回路
JP2533201B2 (ja) * 1989-09-25 1996-09-11 富士通株式会社 Ａｍ検波回路
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US5872481A (en) 1995-12-27 1999-02-16 Qualcomm Incorporated Efficient parallel-stage power amplifier
US5828205A (en) 1997-03-04 1998-10-27 Skelbrook Integrated circuit with an onboard regulator having an optional external pass transistor
US5861776A (en) 1997-06-30 1999-01-19 Harris Corporation High efficiency RF amplifier
US5886572A (en) 1997-07-25 1999-03-23 Motorola, Inc. Method and apparatus for reducing distortion in a power amplifier
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Also Published As

Publication number Publication date
JP2004526376A (ja) 2004-08-26
EP1410494A2 (de) 2004-04-21
WO2002082633A3 (en) 2004-02-12
JP4166577B2 (ja) 2008-10-15
DE60231508D1 (de) 2009-04-23
US6785521B2 (en) 2004-08-31
US20020137480A1 (en) 2002-09-26
EP1410494B1 (de) 2009-03-11
ES2321697T3 (es) 2009-06-10
WO2002082633A2 (en) 2002-10-17

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