FR2837647B1 - Emetteur sans fil a consommation de puissance reduite - Google Patents

Emetteur sans fil a consommation de puissance reduite

Info

Publication number
FR2837647B1
FR2837647B1 FR0300517A FR0300517A FR2837647B1 FR 2837647 B1 FR2837647 B1 FR 2837647B1 FR 0300517 A FR0300517 A FR 0300517A FR 0300517 A FR0300517 A FR 0300517A FR 2837647 B1 FR2837647 B1 FR 2837647B1
Authority
FR
France
Prior art keywords
power consumption
wireless transmitter
reduced power
reduced
transmitter
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 - Fee Related
Application number
FR0300517A
Other languages
English (en)
Other versions
FR2837647A1 (fr
Inventor
Bars Philippe Le
Alain Sehan
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from FR0203704A external-priority patent/FR2837639A1/fr
Application filed by Canon Inc filed Critical Canon Inc
Priority to FR0300517A priority Critical patent/FR2837647B1/fr
Priority to US10/395,184 priority patent/US7206356B2/en
Publication of FR2837647A1 publication Critical patent/FR2837647A1/fr
Application granted granted Critical
Publication of FR2837647B1 publication Critical patent/FR2837647B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
FR0300517A 2002-03-25 2003-01-17 Emetteur sans fil a consommation de puissance reduite Expired - Fee Related FR2837647B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0300517A FR2837647B1 (fr) 2002-03-25 2003-01-17 Emetteur sans fil a consommation de puissance reduite
US10/395,184 US7206356B2 (en) 2002-03-25 2003-03-25 Wireless transmitter with reduced power consumption

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0203704A FR2837639A1 (fr) 2002-03-25 2002-03-25 Emetteur sans fil a consommation de puissance reduite
FR0300517A FR2837647B1 (fr) 2002-03-25 2003-01-17 Emetteur sans fil a consommation de puissance reduite

Publications (2)

Publication Number Publication Date
FR2837647A1 FR2837647A1 (fr) 2003-09-26
FR2837647B1 true FR2837647B1 (fr) 2006-11-24

Family

ID=27806686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0300517A Expired - Fee Related FR2837647B1 (fr) 2002-03-25 2003-01-17 Emetteur sans fil a consommation de puissance reduite

Country Status (2)

Country Link
US (1) US7206356B2 (fr)
FR (1) FR2837647B1 (fr)

Families Citing this family (45)

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US8064188B2 (en) 2000-07-20 2011-11-22 Paratek Microwave, Inc. Optimized thin film capacitors
US7865154B2 (en) 2000-07-20 2011-01-04 Paratek Microwave, Inc. Tunable microwave devices with auto-adjusting matching circuit
US8744384B2 (en) 2000-07-20 2014-06-03 Blackberry Limited Tunable microwave devices with auto-adjusting matching circuit
JP4323968B2 (ja) * 2004-01-14 2009-09-02 株式会社日立コミュニケーションテクノロジー 無線通信装置のタイミング調整方法
US7623826B2 (en) * 2004-07-22 2009-11-24 Frank Pergal Wireless repeater with arbitrary programmable selectivity
FR2875359B1 (fr) * 2004-09-16 2006-11-24 Canon Europa Nv Naamlooze Venn Dispositifs et procedes de modulation et demodulation permettant le prolongement ou le remplacement d'un lien de communication, emetteur et recepteur correspondants
US9406444B2 (en) 2005-11-14 2016-08-02 Blackberry Limited Thin film capacitors
US20070161356A1 (en) * 2006-01-12 2007-07-12 Hoon Bryan A Method and apparatus for improved carrier feed thru rejection for a linear amplifier
US7711337B2 (en) 2006-01-14 2010-05-04 Paratek Microwave, Inc. Adaptive impedance matching module (AIMM) control architectures
US8325097B2 (en) 2006-01-14 2012-12-04 Research In Motion Rf, Inc. Adaptively tunable antennas and method of operation therefore
US8125399B2 (en) 2006-01-14 2012-02-28 Paratek Microwave, Inc. Adaptively tunable antennas incorporating an external probe to monitor radiated power
US7535312B2 (en) 2006-11-08 2009-05-19 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method with improved dynamic range
US8299867B2 (en) 2006-11-08 2012-10-30 Research In Motion Rf, Inc. Adaptive impedance matching module
US7714676B2 (en) 2006-11-08 2010-05-11 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method
US7813777B2 (en) * 2006-12-12 2010-10-12 Paratek Microwave, Inc. Antenna tuner with zero volts impedance fold back
US7917104B2 (en) 2007-04-23 2011-03-29 Paratek Microwave, Inc. Techniques for improved adaptive impedance matching
US8213886B2 (en) * 2007-05-07 2012-07-03 Paratek Microwave, Inc. Hybrid techniques for antenna retuning utilizing transmit and receive power information
US7991363B2 (en) 2007-11-14 2011-08-02 Paratek Microwave, Inc. Tuning matching circuits for transmitter and receiver bands as a function of transmitter metrics
CN101953177A (zh) * 2007-12-19 2011-01-19 福尔肯纳米有限公司 用于提高通信速度、频谱效率并实现其他益处的公共波形和边带抑制通信系统和方法
US8072285B2 (en) 2008-09-24 2011-12-06 Paratek Microwave, Inc. Methods for tuning an adaptive impedance matching network with a look-up table
US8067858B2 (en) 2008-10-14 2011-11-29 Paratek Microwave, Inc. Low-distortion voltage variable capacitor assemblies
FR2938990B1 (fr) * 2008-11-27 2011-01-21 Canon Kk Procede et dispositif de pointage d'antenne
JP5272898B2 (ja) * 2009-05-29 2013-08-28 ソニー株式会社 信号処理装置、信号処理方法、および受信システム
US8472888B2 (en) 2009-08-25 2013-06-25 Research In Motion Rf, Inc. Method and apparatus for calibrating a communication device
US9026062B2 (en) 2009-10-10 2015-05-05 Blackberry Limited Method and apparatus for managing operations of a communication device
US8803631B2 (en) 2010-03-22 2014-08-12 Blackberry Limited Method and apparatus for adapting a variable impedance network
US8860525B2 (en) 2010-04-20 2014-10-14 Blackberry Limited Method and apparatus for managing interference in a communication device
US9379454B2 (en) 2010-11-08 2016-06-28 Blackberry Limited Method and apparatus for tuning antennas in a communication device
US8712340B2 (en) 2011-02-18 2014-04-29 Blackberry Limited Method and apparatus for radio antenna frequency tuning
US8655286B2 (en) 2011-02-25 2014-02-18 Blackberry Limited Method and apparatus for tuning a communication device
US8594584B2 (en) 2011-05-16 2013-11-26 Blackberry Limited Method and apparatus for tuning a communication device
US8626083B2 (en) 2011-05-16 2014-01-07 Blackberry Limited Method and apparatus for tuning a communication device
EP2740221B1 (fr) 2011-08-05 2019-06-26 BlackBerry Limited Procédé et appareil pour un réglage de bande dans un dispositif de communication
US8948889B2 (en) 2012-06-01 2015-02-03 Blackberry Limited Methods and apparatus for tuning circuit components of a communication device
US9853363B2 (en) 2012-07-06 2017-12-26 Blackberry Limited Methods and apparatus to control mutual coupling between antennas
US9246223B2 (en) 2012-07-17 2016-01-26 Blackberry Limited Antenna tuning for multiband operation
US9350405B2 (en) 2012-07-19 2016-05-24 Blackberry Limited Method and apparatus for antenna tuning and power consumption management in a communication device
US9413066B2 (en) 2012-07-19 2016-08-09 Blackberry Limited Method and apparatus for beam forming and antenna tuning in a communication device
US9362891B2 (en) 2012-07-26 2016-06-07 Blackberry Limited Methods and apparatus for tuning a communication device
US10404295B2 (en) 2012-12-21 2019-09-03 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
US9374113B2 (en) 2012-12-21 2016-06-21 Blackberry Limited Method and apparatus for adjusting the timing of radio antenna tuning
WO2014142943A1 (fr) * 2013-03-15 2014-09-18 Lsi Corporation Émetteur à bande latérale unique employant un amplificateur de classe s
US8970406B2 (en) 2013-03-15 2015-03-03 Lsi Corporation Interleaved multipath digital power amplification
US9438319B2 (en) 2014-12-16 2016-09-06 Blackberry Limited Method and apparatus for antenna selection
CN110719115B (zh) * 2019-09-29 2021-09-10 中国工程物理研究院电子工程研究所 一种基于fpga的数字射频发射机

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US4866647A (en) * 1988-02-04 1989-09-12 American Telephone And Telegraph Company Continuously variable digital delay circuit
FR2728410B1 (fr) * 1994-12-16 1997-01-24 Thomson Csf Dispositif de synthese de frequence pour recepteur v/uhf large bande
KR100424359B1 (ko) * 1996-12-11 2004-03-24 지엔 넷컴 에이에스 Ｄ급 증폭기
US6256482B1 (en) * 1997-04-07 2001-07-03 Frederick H. Raab Power- conserving drive-modulation method for envelope-elimination-and-restoration (EER) transmitters
US5886572A (en) * 1997-07-25 1999-03-23 Motorola, Inc. Method and apparatus for reducing distortion in a power amplifier
US6160856A (en) * 1997-12-18 2000-12-12 Advanced Micro Devices, Inc. System for providing amplitude and phase modulation of line signals using delay lines
FI105609B (fi) * 1998-10-27 2000-09-15 Nokia Mobile Phones Ltd Menetelmä ja järjestely lähetyssignaalin muodostamiseksi
EP1035701A1 (fr) * 1999-03-08 2000-09-13 Motorola, Inc. Modulateur employant l'élimination et la restauration de l'enveloppe à tables de consultation
FR2807252B1 (fr) * 2000-03-31 2003-01-10 Matra Nortel Communications Dispositif de production d'un signal radiofrequence module en phase et en amplitude
IT1317249B1 (it) * 2000-04-14 2003-05-27 Cit Alcatel Metodo e apparato per la compensazione automatica del ritardo pertrasmissioni radio in diversita' di spazio.
SE519319C2 (sv) * 2000-06-27 2003-02-11 Ericsson Telefon Ab L M Transceiverkrets samt förfarande för kalibrering av komponenter i nämnd transceiver

Also Published As

Publication number Publication date
US7206356B2 (en) 2007-04-17
FR2837647A1 (fr) 2003-09-26
US20030232607A1 (en) 2003-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20140930