DE69910599D1 - Verfahren und gerät zur generierung eines linear-moduliertes signal mittels polarer modulierung - Google Patents

Verfahren und gerät zur generierung eines linear-moduliertes signal mittels polarer modulierung

Info

Publication number
DE69910599D1
DE69910599D1 DE69910599T DE69910599T DE69910599D1 DE 69910599 D1 DE69910599 D1 DE 69910599D1 DE 69910599 T DE69910599 T DE 69910599T DE 69910599 T DE69910599 T DE 69910599T DE 69910599 D1 DE69910599 D1 DE 69910599D1
Authority
DE
Germany
Prior art keywords
phase
modulated
modulated signal
signal
component
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
DE69910599T
Other languages
English (en)
Other versions
DE69910599T2 (de
Inventor
Bengt Lindoff
Hakan Eriksson
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69910599D1 publication Critical patent/DE69910599D1/de
Application granted granted Critical
Publication of DE69910599T2 publication Critical patent/DE69910599T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03CMODULATION
    • H03C5/00Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
DE69910599T 1998-10-07 1999-10-06 Verfahren und gerät zur generierung eines linear-moduliertes signal mittels polarer modulierung Expired - Lifetime DE69910599T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US167658 1993-12-17
US09/167,658 US6101224A (en) 1998-10-07 1998-10-07 Method and apparatus for generating a linearly modulated signal using polar modulation
PCT/SE1999/001790 WO2000021191A1 (en) 1998-10-07 1999-10-06 Method and apparatus for generating a linearly modulated signal using polar modulation

Publications (2)

Publication Number Publication Date
DE69910599D1 true DE69910599D1 (de) 2003-09-25
DE69910599T2 DE69910599T2 (de) 2004-06-24

Family

ID=22608259

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69910599T Expired - Lifetime DE69910599T2 (de) 1998-10-07 1999-10-06 Verfahren und gerät zur generierung eines linear-moduliertes signal mittels polarer modulierung

Country Status (9)

Country Link
US (1) US6101224A (de)
EP (1) EP1119902B1 (de)
JP (1) JP4414100B2 (de)
CN (1) CN1130817C (de)
AT (1) ATE247876T1 (de)
AU (1) AU1304800A (de)
DE (1) DE69910599T2 (de)
MY (1) MY126431A (de)
WO (1) WO2000021191A1 (de)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010306A1 (de) * 1997-08-25 2000-06-21 Nokia Corporation Digitaler winkel- und/oder amplitudemodulator
US6470055B1 (en) 1998-08-10 2002-10-22 Kamilo Feher Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
US8050345B1 (en) * 1999-08-09 2011-11-01 Kamilo Feher QAM and GMSK systems
US7415066B2 (en) * 1998-08-10 2008-08-19 Kamilo Feher Mis-matched modulation-demodulation format selectable filters
US7079584B2 (en) * 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
US6757334B1 (en) * 1998-08-10 2004-06-29 Kamilo Feher Bit rate agile third-generation wireless CDMA, GSM, TDMA and OFDM system
US7593481B2 (en) * 1998-08-31 2009-09-22 Kamilo Feher CDMA, W-CDMA, 3rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems
US7548787B2 (en) 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
AU5796499A (en) 1998-08-31 2000-03-21 Kamilo Feher Feher keying (fk) modulation and transceivers including clock shaping processors
US6864668B1 (en) 1999-02-09 2005-03-08 Tropian, Inc. High-efficiency amplifier output level and burst control
US6377784B2 (en) 1999-02-09 2002-04-23 Tropian, Inc. High-efficiency modulation RF amplifier
US6490440B1 (en) * 1999-06-01 2002-12-03 Motorola, Inc. Digital transmitter circuit and method of operation
US7260369B2 (en) 2005-08-03 2007-08-21 Kamilo Feher Location finder, tracker, communication and remote control system
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US9813270B2 (en) 1999-08-09 2017-11-07 Kamilo Feher Heart rate sensor and medical diagnostics wireless devices
US6366177B1 (en) 2000-02-02 2002-04-02 Tropian Inc. High-efficiency power modulators
DE10056472A1 (de) * 2000-11-15 2002-05-29 Infineon Technologies Ag Polar-Loop-Sendeschaltung
US6754287B2 (en) * 2001-03-21 2004-06-22 Skyworks Solutions, Inc. Method and apparatus for producing a modulated signal
US7020070B2 (en) 2001-04-10 2006-03-28 Telefonaktiebolaget L M Ericsson (Publ) Selectively controlled modulation distortion of an IQ-baseband signal
US6701138B2 (en) * 2001-06-11 2004-03-02 Rf Micro Devices, Inc. Power amplifier control
US20070060074A1 (en) * 2002-03-07 2007-03-15 Matsushita Electric Industrial Co., Ltd. High-efficiency modulating RF amplifier
US6834084B2 (en) * 2002-05-06 2004-12-21 Rf Micro Devices Inc Direct digital polar modulator
US7801244B2 (en) * 2002-05-16 2010-09-21 Rf Micro Devices, Inc. Am to AM correction system for polar modulator
US7991071B2 (en) * 2002-05-16 2011-08-02 Rf Micro Devices, Inc. AM to PM correction system for polar modulator
US6892057B2 (en) * 2002-08-08 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reducing dynamic range of a power amplifier
US7545865B2 (en) * 2002-12-03 2009-06-09 M/A-Com, Inc. Apparatus, methods and articles of manufacture for wideband signal processing
US7203262B2 (en) 2003-05-13 2007-04-10 M/A-Com, Inc. Methods and apparatus for signal modification in a fractional-N phase locked loop system
US7187231B2 (en) * 2002-12-02 2007-03-06 M/A-Com, Inc. Apparatus, methods and articles of manufacture for multiband signal processing
US7502422B2 (en) * 2003-06-04 2009-03-10 M/A—COM, Inc. Electromagnetic wave transmitter systems, methods and articles of manufacture
US7526260B2 (en) * 2002-11-14 2009-04-28 M/A-Com Eurotec, B.V. Apparatus, methods and articles of manufacture for linear signal modification
US7245183B2 (en) * 2002-11-14 2007-07-17 M/A-Com Eurotec Bv Apparatus, methods and articles of manufacture for processing an electromagnetic wave
US6891432B2 (en) * 2002-11-14 2005-05-10 Mia-Com, Inc. Apparatus, methods and articles of manufacture for electromagnetic processing
US6924699B2 (en) * 2003-03-06 2005-08-02 M/A-Com, Inc. Apparatus, methods and articles of manufacture for digital modification in electromagnetic signal processing
US7298854B2 (en) * 2002-12-04 2007-11-20 M/A-Com, Inc. Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing
US7551685B2 (en) * 2003-08-25 2009-06-23 M/A-Com, Inc. Apparatus, methods and articles of manufacture for signal correction using adaptive phase re-alignment
US6701134B1 (en) * 2002-11-05 2004-03-02 Rf Micro Devices, Inc. Increased dynamic range for power amplifiers used with polar modulation
JP2004175052A (ja) * 2002-11-29 2004-06-24 Sony Corp インクジェット被記録媒体、インクジェット画像形成方法及び印画物
US6859098B2 (en) 2003-01-17 2005-02-22 M/A-Com, Inc. Apparatus, methods and articles of manufacture for control in an electromagnetic processor
US7447272B2 (en) * 2003-04-22 2008-11-04 Freescale Semiconductor, Inc. Filter method and apparatus for polar modulation
GB2402006B (en) * 2003-05-23 2005-08-10 Motorola Inc Analog to digital converter
US6987417B2 (en) * 2003-06-24 2006-01-17 Northrop Grumman Corpoation Polar and linear amplifier system
US7043213B2 (en) * 2003-06-24 2006-05-09 Northrop Grumman Corporation Multi-mode amplifier system
US7251462B2 (en) * 2003-07-08 2007-07-31 Matsushita Electric Industrial Co., Ltd. Modulation circuit device, modulation method and radio communication device
US7126999B2 (en) * 2003-08-11 2006-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Pseudo-polar modulation for radio transmitters
US7058373B2 (en) * 2003-09-16 2006-06-06 Nokia Corporation Hybrid switched mode/linear power amplifier power supply for use in polar transmitter
US7091778B2 (en) * 2003-09-19 2006-08-15 M/A-Com, Inc. Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission
US7480511B2 (en) * 2003-09-19 2009-01-20 Trimble Navigation Limited Method and system for delivering virtual reference station data
JP3935460B2 (ja) * 2003-09-30 2007-06-20 松下電器産業株式会社 振幅情報抽出装置および振幅情報抽出方法
JP4395044B2 (ja) * 2003-10-22 2010-01-06 パナソニック株式会社 変調装置及び変調方法
US7343138B2 (en) * 2003-12-08 2008-03-11 M/A-Com, Inc. Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
US7912145B2 (en) * 2003-12-15 2011-03-22 Marvell World Trade Ltd. Filter for a modulator and methods thereof
JP3961498B2 (ja) * 2004-02-27 2007-08-22 松下電器産業株式会社 高周波回路装置
WO2005088842A1 (ja) * 2004-03-10 2005-09-22 Matsushita Electric Industrial Co., Ltd. 送信装置及び無線通信装置
US7551686B1 (en) 2004-06-23 2009-06-23 Rf Micro Devices, Inc. Multiple polynomial digital predistortion
US8031028B2 (en) 2004-07-07 2011-10-04 SiGe Semiconductor (Europe) Ltd. Polar signal processor to drive a segmented power amplifier and method therefore
US7109791B1 (en) * 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
US7529523B1 (en) 2004-08-23 2009-05-05 Rf Micro Devices, Inc. N-th order curve fit for power calibration in a mobile terminal
US7359680B2 (en) * 2004-09-14 2008-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Delay calibration in polar modulation transmitters
US7983632B2 (en) * 2004-09-24 2011-07-19 Broadcom Corporation Feedback control loop for amplitude modulation in a polar transmitter with a translational loop
US7359449B2 (en) * 2004-10-05 2008-04-15 Kamilo Feher Data communication for wired and wireless communication
DE102004059985B4 (de) * 2004-12-13 2017-11-16 Intel Deutschland Gmbh Funksender mit einstellbaren Verstäkereinheiten im Basisband- und im Hochfrequenzabschnitt des Sendepfads
US7596185B2 (en) 2004-12-13 2009-09-29 Infineon Technologies Ag Radio transmitter with variable amplifier units in the baseband section and in the radio-frequency section of the transmission path
DE602006005076D1 (de) * 2005-04-27 2009-03-19 Panasonic Corp Polarmodulations-Übertragungsschaltung und Kommunikationseinrichtung
US7336127B2 (en) * 2005-06-10 2008-02-26 Rf Micro Devices, Inc. Doherty amplifier configuration for a collector controlled power amplifier
US8224265B1 (en) 2005-06-13 2012-07-17 Rf Micro Devices, Inc. Method for optimizing AM/AM and AM/PM predistortion in a mobile terminal
US20070018718A1 (en) * 2005-06-20 2007-01-25 National Sun Yat-Sen University Microwave transmitter and the method for increasing envelope bandwidth
US7493097B2 (en) * 2005-07-07 2009-02-17 Skyworks Solutions, Inc. High dynamic range compact mixer output stage for a wireless receiver
US20070015472A1 (en) * 2005-07-15 2007-01-18 Simo Murtojarvi Multimode transmitter, module, communication device and chip set
US20070018701A1 (en) * 2005-07-20 2007-01-25 M/A-Com, Inc. Charge pump apparatus, system, and method
US10009956B1 (en) 2017-09-02 2018-06-26 Kamilo Feher OFDM, 3G and 4G cellular multimode systems and wireless mobile networks
US7280810B2 (en) 2005-08-03 2007-10-09 Kamilo Feher Multimode communication system
US20070087770A1 (en) * 2005-10-14 2007-04-19 Hong Gan Methods and apparatuses for transmission power control in a wireless communication system
US7330071B1 (en) 2005-10-19 2008-02-12 Rf Micro Devices, Inc. High efficiency radio frequency power amplifier having an extended dynamic range
CN101292420B (zh) * 2005-10-21 2011-04-27 Nxp股份有限公司 极化调制设备以及利用fm调制的方法
US7483680B2 (en) * 2005-12-20 2009-01-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for modulation path delay mismatch compensation in a polar modulation transmitter
US8884714B2 (en) * 2005-12-22 2014-11-11 Pine Valley Investments, Inc. Apparatus, system, and method for digital base modulation of power amplifier in polar transmitter
US7599448B2 (en) * 2006-02-03 2009-10-06 Pine Valley Investments, Inc. Multi-mode selectable modulation architecture calibration and power control apparatus, system, and method for radio frequency power amplifier
US7877060B1 (en) 2006-02-06 2011-01-25 Rf Micro Devices, Inc. Fast calibration of AM/PM pre-distortion
US7522676B2 (en) * 2006-02-06 2009-04-21 Nokia Corporation Method and system for transmitter envelope delay calibration
JP4469347B2 (ja) * 2006-02-28 2010-05-26 パナソニック株式会社 極座標変調装置
US20070216455A1 (en) * 2006-03-17 2007-09-20 M/A-Com, Inc. Partial cascode delay locked loop architecture
US7962108B1 (en) 2006-03-29 2011-06-14 Rf Micro Devices, Inc. Adaptive AM/PM compensation
US7596184B2 (en) * 2006-03-30 2009-09-29 Pine Valley Investments, Inc. Apparatus, system, and method for amplitude-phase synchronization in polar transmitter
US7471154B2 (en) 2006-08-08 2008-12-30 Skyworks Solutions, Inc. Bias circuit for maintaining high linearity at cutback power conditions
US7446612B2 (en) * 2006-09-08 2008-11-04 Skyworks Solutions, Inc. Amplifier feedback and bias configuration
US7830220B2 (en) * 2006-09-26 2010-11-09 Infineon Technologies Ag Modulator arrangement and method for signal modulation
US7689182B1 (en) 2006-10-12 2010-03-30 Rf Micro Devices, Inc. Temperature compensated bias for AM/PM improvement
US7696826B2 (en) * 2006-12-04 2010-04-13 Skyworks Solutions, Inc. Temperature compensation of collector-voltage control RF amplifiers
US8009765B2 (en) * 2007-03-13 2011-08-30 Pine Valley Investments, Inc. Digital polar transmitter
US8009762B1 (en) 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter
US7991366B2 (en) * 2008-05-20 2011-08-02 Panasonic Corporation Methods and apparatus for reconstructing amplitude modulation signals in polar modulation transmitters
US8229029B2 (en) * 2009-01-14 2012-07-24 Harris Corporation Transmitter with reduced spectral regrowth and associated methods
US8489042B1 (en) 2009-10-08 2013-07-16 Rf Micro Devices, Inc. Polar feedback linearization
US8195102B2 (en) * 2010-06-02 2012-06-05 Nxp B.V. System and method for transmitting a baseband real signal with a non-constant envelope using a polar transmitter
US8325073B2 (en) * 2010-11-30 2012-12-04 Qualcomm Incorporated Performing enhanced sigma-delta modulation
US8798194B2 (en) * 2011-12-15 2014-08-05 Intel Mobile Communications GmbH Adaptive compensation of nonlinear frequency distortion in polar transmitters based on a least squares estimation
US8867660B2 (en) 2011-12-15 2014-10-21 Intel Mobile Communications GmbH Method and system to measure and compensate undue DCO frequency peaks at GFSK ramp down
US8638878B2 (en) 2011-12-15 2014-01-28 Intel Mobile Communications GmbH Method and faculty to measure and compensate DCO frequency distortions using a DPLL
US9172570B1 (en) 2014-06-13 2015-10-27 Intel IP Corporation Compensation of oscillator frequency pulling
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

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL237586A (de) * 1958-03-27
US3906401A (en) * 1974-09-03 1975-09-16 Bell Telephone Labor Inc Feedforward error correction in interferometer modulators
US4324952A (en) * 1978-08-21 1982-04-13 Harris Corporation Direct function receivers and transmitters for multichannel communications system
US4268802A (en) * 1979-05-23 1981-05-19 Fisher Charles B Modulation distortion reducer
US4373115A (en) * 1980-08-18 1983-02-08 Kahn Leonard R Predictive distortion reduction in AM stereo transmitters
US4485358A (en) * 1981-09-28 1984-11-27 E-Systems, Inc. Method and apparatus for pulse angle modulation
US4509017A (en) * 1981-09-28 1985-04-02 E-Systems, Inc. Method and apparatus for pulse angle modulation
US4584541A (en) * 1984-12-28 1986-04-22 Rca Corporation Digital modulator with variations of phase and amplitude modulation
US4700151A (en) * 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
IT1215370B (it) * 1987-02-26 1990-02-08 Gtg Ora Siemens Telecomunicazi Linearizzatore per amplificatore di potenza a microonde.
US4972440A (en) * 1988-09-23 1990-11-20 Hughes Aircraft Company Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals
US4968956A (en) * 1989-12-04 1990-11-06 Trw Inc. Microwave phase modulator having a quadrature path with phase offset
GB9002789D0 (en) * 1990-02-08 1990-04-04 Marconi Co Ltd Circuit for reducing distortion produced by an r.f.power amplifier
IT1251082B (it) * 1991-07-11 1995-05-04 Sits Soc It Telecom Siemens Procedimento per la compensazione della distorsione am/pm di un trasmettitore tramite modulazuone della fase dell'oscillazione tlocale, e relativo circuito di compemsazione.
JPH05152981A (ja) * 1991-11-26 1993-06-18 Iwatsu Electric Co Ltd 複合変調波の受信機
JP3166321B2 (ja) * 1992-07-01 2001-05-14 日本電気株式会社 変調信号送信システム
US5450044A (en) * 1993-04-14 1995-09-12 Acrodyne Industries, Inc. Quadrature amplitude modulator including a digital amplitude modulator as a component thereof
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
US5430416A (en) * 1994-02-23 1995-07-04 Motorola Power amplifier having nested amplitude modulation controller and phase modulation controller
US5506546A (en) * 1994-06-20 1996-04-09 Nec Corporation Method and apparatus for generating transmitting wave
JP2964883B2 (ja) * 1994-09-30 1999-10-18 日本電気株式会社 送信器
US5491454A (en) * 1994-10-31 1996-02-13 Motorola, Inc. Method and apparatus for reducing distortion in an output signal of an amplifier
JP3560398B2 (ja) * 1995-08-31 2004-09-02 富士通株式会社 歪補償を有する増幅器
US5705959A (en) * 1996-10-08 1998-01-06 The United States Of America As Represented By The Secretary Of The Air Force High efficiency low distortion amplification

Also Published As

Publication number Publication date
JP4414100B2 (ja) 2010-02-10
EP1119902B1 (de) 2003-08-20
MY126431A (en) 2006-09-29
ATE247876T1 (de) 2003-09-15
EP1119902A1 (de) 2001-08-01
JP2002527921A (ja) 2002-08-27
AU1304800A (en) 2000-04-26
CN1322398A (zh) 2001-11-14
DE69910599T2 (de) 2004-06-24
CN1130817C (zh) 2003-12-10
US6101224A (en) 2000-08-08
WO2000021191A1 (en) 2000-04-13

Similar Documents

Publication Publication Date Title
DE69910599D1 (de) Verfahren und gerät zur generierung eines linear-moduliertes signal mittels polarer modulierung
WO2003043231A3 (en) Method and apparatus for waveform synthesis and generation
DE602006005489D1 (de) Verfahren und vorrichtung zur frequenzsynthese bei sendern mit direktwandlung
ATE292356T1 (de) Verfahren und gerät zur erzeugung eines mehrkanalsignal
MX9606712A (es) Polarizacion sincrona y modulacion de fase utilizando una forma de onda periodica con armonicos complejos para mejorado desempeño de sistemas de transmision optica.
DE50007789D1 (de) Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern
ATE350849T1 (de) Vorrichtung zur erzeugung eines phasen- und amplitudenmodulierten hochfrequenzsignals
CA2185649A1 (en) Frequency transpositional hearing aid with digital and single sideband modulation
AU2002221581A1 (en) A method and an apparatus for generating a phase-modulated wave front of electromagnetic radiation
DE60117708D1 (de) Modulator unter verwendung einer klasse-e-stufe
SE9503687L (sv) Effektförstärkare som har kapslad amplitudmoduleringsstyrenhet och fasmodulationsstyrenhet
KR960027861A (ko) 엔벨로프가 가변인 변조 신호를 엔벨로프가 가변이 아닌 2개의 변조 신호로 변환하는 변환기, 이 변환기를 사용하는 트랜스미터 및 엔벨로프가 가변인 변조파를 송신하는 방법
WO2009032730A3 (en) Apparatus and method for modulating an amplitude, phase or both of a periodic signal on a per cycle basis
DE602004008913D1 (de) Verfahren und Vorrichtung zur Erstellung eines zwei-Pegel pulsbreitenmodulierten Signals
GB2365140B (en) Optical pulse train generator
EP1965553A3 (de) Polare Modulation unter Verwendung eines direkten digitalen Frequenz-Synthesizers (DDFS)
DE60332009D1 (de) Verfahren und systeme zur erzeugung eines klangs abgeleitet von einer phase
AU2365395A (en) Reducing interference from oscillators in electronic equipment
ATE448621T1 (de) Verfahren und vorrichtung zum modulieren eines rundfunksignals unter verwendung digitalen amplituden- und phasen-steuerungssignale
ATE554546T1 (de) Empfänger und verfahren zum empfangen eines digitalen signals
CA2191813A1 (en) Radio navigation testing method and device using standard signal measuring and generating equipment
DE69738651D1 (de) Verfahren zum kombinieren von verschiedenen signalen und feststation
WO2004034603A3 (en) Transmitter and methods of transmission using separate phase and amplitude modulators
DE60224413D1 (de) Vorrichtung zur kontrolle eines phasenmodulators für funksignale
WO2007062407A3 (en) Laser source for a passive optical network

Legal Events

Date Code Title Description
8364 No opposition during term of opposition