DE60231508D1 - System zur strommodus-amplitudenmodulation , und verfahren dazu - Google Patents

System zur strommodus-amplitudenmodulation , und verfahren dazu

Info

Publication number
DE60231508D1
DE60231508D1 DE60231508T DE60231508T DE60231508D1 DE 60231508 D1 DE60231508 D1 DE 60231508D1 DE 60231508 T DE60231508 T DE 60231508T DE 60231508 T DE60231508 T DE 60231508T DE 60231508 D1 DE60231508 D1 DE 60231508D1
Authority
DE
Germany
Prior art keywords
amplitude modulation
power module
modulation system
method therefor
power amplifier
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.)
Expired - Lifetime
Application number
DE60231508T
Other languages
English (en)
Inventor
Aristotele Hadjichristos
David Pehlke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
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 DE60231508D1 publication Critical patent/DE60231508D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Amplitude Modulation (AREA)
  • Burglar Alarm Systems (AREA)
DE60231508T 2001-03-21 2002-03-11 System zur strommodus-amplitudenmodulation , und verfahren dazu Expired - Lifetime DE60231508D1 (de)

Applications Claiming Priority (2)

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
PCT/US2002/007788 WO2002082633A2 (en) 2001-03-21 2002-03-11 System and method for current-mode amplitude modulation

Publications (1)

Publication Number Publication Date
DE60231508D1 true DE60231508D1 (de) 2009-04-23

Family

ID=25212848

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60231508T Expired - Lifetime DE60231508D1 (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
EP1542357B1 (de) 2003-12-12 2006-11-29 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
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
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
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
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
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
WO2009005768A1 (en) 2007-06-28 2009-01-08 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
JP6174574B2 (ja) 2011-06-02 2017-08-02 パーカーヴィジョン インコーポレイテッド アンテナ制御
KR20160058855A (ko) 2013-09-17 2016-05-25 파커비전, 인크. 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템
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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US3211989A (en) 1961-12-07 1965-10-12 Trw Inc Voltage regulator employing a nonlinear impedance and negative temperature coefficient impedance to prevent leakage current
US3895316A (en) 1973-08-29 1975-07-15 W P Instr Inc Complex tone modulation
JPS5342542A (en) * 1976-09-29 1978-04-18 Anritsu Electric Co Ltd Amplitude modulating circuit
JPS5492005A (en) * 1977-12-29 1979-07-20 Sanyo Electric Co Ltd Automatic modulation factor control circuit of transmitter
JPS5737905A (en) * 1980-08-14 1982-03-02 Toshiba Corp Envelope curve wave detecting circuit
JPS57171845A (en) * 1981-04-15 1982-10-22 Sony Corp Phase locked loop circuit
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
US5136300A (en) 1991-06-13 1992-08-04 Westinghouse Electric Corp. Modular solid state radar transmitter
DE4206352A1 (de) 1992-02-29 1993-09-02 Deutsche Aerospace Verfahren zum linearen verstaerken eines nutzsignals und verstaerker zum durchfuehren des verfahrens
GB2279779B (en) 1993-06-02 1997-03-05 Vtech Communications Ltd Amplifier power control system
GB2306814B (en) 1995-11-01 2000-03-15 Roke Manor Research Improvements in or relating to rf power amplifiers
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
US6025754A (en) 1997-11-03 2000-02-15 Harris Corporation Envelope modulated amplifier bias control and method
US5966051A (en) * 1998-04-21 1999-10-12 Conexant Systems, Inc. Low voltage medium power class C power amplifier with precise gain control
US6377784B2 (en) 1999-02-09 2002-04-23 Tropian, Inc. High-efficiency modulation RF amplifier
US6356154B1 (en) * 2000-07-06 2002-03-12 Credence Systems Corporation FET-based, linear voltage-controlled resistor for wide-band gain control circuit

Also Published As

Publication number Publication date
US6785521B2 (en) 2004-08-31
US20020137480A1 (en) 2002-09-26
ATE425577T1 (de) 2009-03-15
WO2002082633A3 (en) 2004-02-12
JP2004526376A (ja) 2004-08-26
WO2002082633A2 (en) 2002-10-17
ES2321697T3 (es) 2009-06-10
EP1410494B1 (de) 2009-03-11
EP1410494A2 (de) 2004-04-21
JP4166577B2 (ja) 2008-10-15

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Legal Events

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