IL157960A0 - Power division multiplexing with incoherent signals and fixed power hierarchy - Google Patents

Power division multiplexing with incoherent signals and fixed power hierarchy

Info

Publication number
IL157960A0
IL157960A0 IL15796002A IL15796002A IL157960A0 IL 157960 A0 IL157960 A0 IL 157960A0 IL 15796002 A IL15796002 A IL 15796002A IL 15796002 A IL15796002 A IL 15796002A IL 157960 A0 IL157960 A0 IL 157960A0
Authority
IL
Israel
Prior art keywords
power
division multiplexing
hierarchy
incoherent signals
fixed
Prior art date
Application number
IL15796002A
Other languages
English (en)
Original Assignee
Hughes Electronics Corp
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 Hughes Electronics Corp filed Critical Hughes Electronics Corp
Publication of IL157960A0 publication Critical patent/IL157960A0/xx

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
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
    • H03F3/58—Amplifiers using transit-time effect in tubes or semiconductor devices using travelling-wave tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
    • H04H20/103—Transmitter-side switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/42—Arrangements for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
    • H04J11/004—Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/183—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • 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
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/393—A measuring circuit being coupled to the output of an amplifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0061—Closed loops remodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromagnetism (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Amplifiers (AREA)
  • Mobile Radio Communication Systems (AREA)
IL15796002A 2001-04-27 2002-04-24 Power division multiplexing with incoherent signals and fixed power hierarchy IL157960A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/844,401 US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals
PCT/US2002/012628 WO2002089371A1 (en) 2001-04-27 2002-04-24 Power division multiplexing with incoherent signals and fixed powder hierarchy

Publications (1)

Publication Number Publication Date
IL157960A0 true IL157960A0 (en) 2004-03-28

Family

ID=25292632

Family Applications (2)

Application Number Title Priority Date Filing Date
IL15796002A IL157960A0 (en) 2001-04-27 2002-04-24 Power division multiplexing with incoherent signals and fixed power hierarchy
IL157960A IL157960A (en) 2001-04-27 2003-09-16 Power division multiplexing with incoherent signals and fixed power hierarchy

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL157960A IL157960A (en) 2001-04-27 2003-09-16 Power division multiplexing with incoherent signals and fixed power hierarchy

Country Status (8)

Country Link
US (3) US7209524B2 (xx)
EP (2) EP1876705B1 (xx)
AR (1) AR033277A1 (xx)
CA (1) CA2442400C (xx)
ES (2) ES2403213T3 (xx)
IL (2) IL157960A0 (xx)
NO (1) NO328961B1 (xx)
WO (2) WO2002089371A1 (xx)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7471735B2 (en) * 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
WO2004040820A2 (en) * 2001-04-27 2004-05-13 The Directv Group, Inc. Feeder link configurations to support layered modulation
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7423987B2 (en) * 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7778365B2 (en) * 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7002899B2 (en) * 2001-10-09 2006-02-21 Ati Technologies Inc. Method and apparatus to improve SCDMA headroom
US20030118123A1 (en) * 2001-12-21 2003-06-26 Hudson John E. Methods and apparatus for transmitting and receiving data over a communications network in the presence of noise
US7016657B2 (en) * 2002-01-30 2006-03-21 Nokia Corporation Apparatus, and associated method, for communication system utilizing space-generated multilevel coding
AU2003280499A1 (en) * 2002-07-01 2004-01-19 The Directv Group, Inc. Improving hierarchical 8psk performance
EP1529347B1 (en) * 2002-07-03 2016-08-24 The Directv Group, Inc. Method and apparatus for layered modulation
US7363039B2 (en) 2002-08-08 2008-04-22 Qualcomm Incorporated Method of creating and utilizing diversity in multiple carrier communication system
US8190163B2 (en) * 2002-08-08 2012-05-29 Qualcomm Incorporated Methods and apparatus of enhanced coding in multi-user communication systems
US6961595B2 (en) * 2002-08-08 2005-11-01 Flarion Technologies, Inc. Methods and apparatus for operating mobile nodes in multiple states
US7954127B2 (en) 2002-09-25 2011-05-31 The Directv Group, Inc. Direct broadcast signal distribution methods
EP1563620B1 (en) * 2002-10-25 2012-12-05 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7463676B2 (en) * 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
US7068975B2 (en) * 2002-11-26 2006-06-27 The Directv Group, Inc. Systems and methods for sharing uplink bandwidth among satellites in a common orbital slot
US7751477B2 (en) * 2003-02-13 2010-07-06 Broadcom Corporation Communications signal transcoder
US7411895B2 (en) 2003-02-19 2008-08-12 Qualcomm Incorporated Controlled superposition coding in multi-user communication systems
US7907639B2 (en) 2003-05-05 2011-03-15 Thomson Licensing Method and apparatus for synchronizing a multi-level modulation signal
CN100512244C (zh) * 2003-05-05 2009-07-08 汤姆森许可贸易公司 在迭代解码中使用的设备和方法
CN100539562C (zh) * 2003-05-16 2009-09-09 汤姆森许可公司 基于卫星的通信系统中的重复编码
KR101005036B1 (ko) 2003-05-16 2010-12-30 톰슨 라이센싱 레이어된 그리고 계층적인 변조 시스템을 위한 통합 수신기
US8593932B2 (en) * 2003-05-16 2013-11-26 Qualcomm Incorporated Efficient signal transmission methods and apparatus using a shared transmission resource
US7564892B1 (en) * 2003-06-30 2009-07-21 Nxp B.V. Satellite transcoder
US7848303B2 (en) 2003-06-30 2010-12-07 Nxp B.V. Satellite multi-choice switch system
US7925291B2 (en) * 2003-08-13 2011-04-12 Qualcomm Incorporated User specific downlink power control channel Q-bit
US7724838B2 (en) * 2003-09-25 2010-05-25 Qualcomm Incorporated Hierarchical coding with multiple antennas in a wireless communication system
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
US7623553B2 (en) * 2003-11-03 2009-11-24 Qualcomm Incorporated Method, apparatus, and system for data transmission and processing in a wireless communication environment
US7813453B2 (en) * 2004-01-21 2010-10-12 Qualcomm Incorporated Data detection for a hierarchical coded data transmission
WO2005086444A1 (en) * 2004-02-19 2005-09-15 Thomson Licensing Method and apparatus for carrier recovery in a communications system
US20050201478A1 (en) * 2004-03-10 2005-09-15 Holger Claussen Modulation in a mobile telecommunications system
US8213553B2 (en) 2004-04-12 2012-07-03 The Directv Group, Inc. Method and apparatus for identifying co-channel interference
US7949074B2 (en) * 2004-04-24 2011-05-24 Thomson Licensing Apparatus and method for decoding in a hierarchical, modulation system
US8144800B2 (en) * 2004-09-18 2012-03-27 Broadcom Corporatino Downstream transmitter and cable modem receiver for 1024 QAM
US7725799B2 (en) 2005-03-31 2010-05-25 Qualcomm Incorporated Power savings in hierarchically coded modulation
US7900230B2 (en) * 2005-04-01 2011-03-01 The Directv Group, Inc. Intelligent two-way switching network
US8024759B2 (en) 2005-04-01 2011-09-20 The Directv Group, Inc. Backwards-compatible frequency translation module for satellite video delivery
US7958531B2 (en) * 2005-04-01 2011-06-07 The Directv Group, Inc. Automatic level control for incoming signals of different signal strengths
US8549565B2 (en) 2005-04-01 2013-10-01 The Directv Group, Inc. Power balancing signal combiner
US8621525B2 (en) 2005-04-01 2013-12-31 The Directv Group, Inc. Signal injection via power supply
US7945932B2 (en) 2005-04-01 2011-05-17 The Directv Group, Inc. Narrow bandwidth signal delivery system
US7987486B2 (en) 2005-04-01 2011-07-26 The Directv Group, Inc. System architecture for control and signal distribution on coaxial cable
US7950038B2 (en) 2005-04-01 2011-05-24 The Directv Group, Inc. Transponder tuning and mapping
US8789115B2 (en) 2005-09-02 2014-07-22 The Directv Group, Inc. Frequency translation module discovery and configuration
US7937732B2 (en) 2005-09-02 2011-05-03 The Directv Group, Inc. Network fraud prevention via registration and verification
US8019275B2 (en) 2005-10-12 2011-09-13 The Directv Group, Inc. Band upconverter approach to KA/KU signal distribution
US7991348B2 (en) * 2005-10-12 2011-08-02 The Directv Group, Inc. Triple band combining approach to satellite signal distribution
US20070211669A1 (en) * 2006-03-07 2007-09-13 Bhupesh Manoharlal Umatt Method and apparatus for searching radio technologies
US8719875B2 (en) 2006-11-06 2014-05-06 The Directv Group, Inc. Satellite television IP bitstream generator receiving unit
CN101637051B (zh) 2007-01-11 2012-10-31 高通股份有限公司 在无线通信系统中使用dtx和drx
US8712318B2 (en) 2007-05-29 2014-04-29 The Directv Group, Inc. Integrated multi-sat LNB and frequency translation module
US8238813B1 (en) 2007-08-20 2012-08-07 The Directv Group, Inc. Computationally efficient design for broadcast satellite single wire and/or direct demod interface
US7869533B2 (en) * 2007-08-27 2011-01-11 Delphi Technologies, Inc. Communication system and method for receiving high priority and low priority signals
US7835692B2 (en) * 2007-08-27 2010-11-16 Delphi Technologies, Inc. Communication system and method of receiving high priority signals and low priority signals
US8045500B2 (en) 2007-08-27 2011-10-25 Delphi Technologies, Inc. Communication system and method for transmitting signals to a plurality of different types of receivers
US9942618B2 (en) 2007-10-31 2018-04-10 The Directv Group, Inc. SMATV headend using IP transport stream input and method for operating the same
JP5338818B2 (ja) * 2008-09-12 2013-11-13 富士通株式会社 送信装置、受信装置、送信方法および受信方法
BRPI1006912A2 (pt) 2009-01-06 2016-02-16 Directv Group Inc estimação de deriva de frequência para unidade externa de baixo custo
US8824590B2 (en) * 2010-02-11 2014-09-02 Electronics And Telecommunications Research Institute Layered transmission apparatus and method, reception apparatus and reception method
US8687740B2 (en) * 2010-02-11 2014-04-01 Electronics And Telecommunications Research Institute Receiver and reception method for layered modulation
US20110195658A1 (en) * 2010-02-11 2011-08-11 Electronics And Telecommunications Research Institute Layered retransmission apparatus and method, reception apparatus and reception method
US20110194645A1 (en) * 2010-02-11 2011-08-11 Electronics And Telecommunications Research Institute Layered transmission apparatus and method, reception apparatus, and reception method
CN101854229B (zh) * 2010-05-14 2013-04-24 中国人民解放军理工大学 编码调制信号基于层进频偏补偿的迭代解调解码方法
US8804886B2 (en) 2010-06-24 2014-08-12 Telefonaktiebolaget L M Ericsson (Publ) Soft cancellation of inter-layer interference within a MIMO codeword
US8503582B2 (en) * 2010-09-27 2013-08-06 Technische Universitat Berlin Receiver
US9602241B2 (en) * 2013-12-17 2017-03-21 Samsung Electronics Co., Ltd. Computing system with polar processing mechanism and method of operation thereof
US9608714B2 (en) 2015-07-21 2017-03-28 Google Inc. Global communication network
CN108134752A (zh) * 2016-12-01 2018-06-08 深圳市中兴微电子技术有限公司 一种消除码间干扰的方法及系统
CN107040486B (zh) * 2017-03-28 2019-11-26 西安电子科技大学 一种任意码速率自适应的qpsk解调系统及方法
US11107507B2 (en) * 2019-06-21 2021-08-31 Micron Technology, Inc. Transmitting data signals on separate layers of a memory module, and related methods, systems and apparatuses
CN113726461B (zh) * 2021-07-30 2023-06-06 中国电子科技集团公司第三十八研究所 一种Ka频段宽带链路建模仿真系统

Family Cites Families (239)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL257397A (xx) 1959-10-08
US3383598A (en) 1965-02-15 1968-05-14 Space General Corp Transmitter for multiplexed phase modulated singaling system
US3879664A (en) 1973-05-07 1975-04-22 Signatron High speed digital communication receiver
US3878468A (en) 1974-01-30 1975-04-15 Bell Telephone Labor Inc Joint equalization and carrier recovery adaptation in data transmission systems
US4039961A (en) 1974-09-12 1977-08-02 Nippon Telegraph And Telephone Public Corporation Demodulator for combined digital amplitude and phase keyed modulation signals
US3974449A (en) 1975-03-21 1976-08-10 Bell Telephone Laboratories, Incorporated Joint decision feedback equalization and carrier recovery adaptation in data transmission systems
JPS522253A (en) 1975-06-24 1977-01-08 Kokusai Denshin Denwa Co Ltd <Kdd> Non-linearity compensation cicuit for high frequency amplifier
JPS5816802B2 (ja) 1978-04-17 1983-04-02 ケイディディ株式会社 高周波増幅器の非線形補償回路
US4213095A (en) 1978-08-04 1980-07-15 Bell Telephone Laboratories, Incorporated Feedforward nonlinear equalization of modulated data signals
USRE31351E (en) 1978-08-04 1983-08-16 Bell Telephone Laboratories, Incorporated Feedback nonlinear equalization of modulated data signals
US4384355A (en) 1979-10-15 1983-05-17 Bell Telephone Laboratories, Incorporated Control of coefficient drift for fractionally spaced equalizers
US4253184A (en) 1979-11-06 1981-02-24 Bell Telephone Laboratories, Incorporated Phase-jitter compensation using periodic harmonically related components
US4422175A (en) 1981-06-11 1983-12-20 Racal-Vadic, Inc. Constrained adaptive equalizer
FR2510331A1 (fr) 1981-07-23 1983-01-28 Leclert Alain Circuit de regeneration d'une onde porteuse
US4416015A (en) 1981-12-30 1983-11-15 Bell Telephone Laboratories, Incorporated Timing acquisition in voiceband data sets
US4500984A (en) 1982-09-29 1985-02-19 International Telecommunications Satellite Organization Equalizer for reducing crosstalk between two FDM/FM carriers in a satellite communications system
US4519084A (en) 1982-09-29 1985-05-21 At&T Bell Laboratories Matched filter for combating multipath fading
JPS59193658A (ja) 1983-04-18 1984-11-02 Nec Corp 擬似誤り検出回路
FR2546010B1 (fr) 1983-05-11 1985-07-12 Trt Telecom Radio Electr Dispositif d'egalisation en frequence porteuse commande a partir de la bande de base
FR2546008B1 (fr) 1983-05-11 1985-07-12 Labo Electronique Physique Circuit d'egalisation adaptative et de demodulation conjointes
US4637017A (en) 1984-05-21 1987-01-13 Communications Satellite Corporation Monitoring of input backoff in time division multiple access communication satellites
US4709374A (en) 1984-07-05 1987-11-24 American Telephone And Telegraph Company Technique for decision-directed equalizer train/retrain
GB2164823A (en) 1984-09-17 1986-03-26 Philips Electronic Associated Television transmitter
US4896369A (en) 1984-12-28 1990-01-23 Harris Corporation Optimal satellite TWT power allocation process for achieving requested availability and maintaining stability in ALPC-type networks
US4654863A (en) 1985-05-23 1987-03-31 At&T Bell Laboratories Wideband adaptive prediction
US4647873A (en) 1985-07-19 1987-03-03 General Dynamics, Pomona Division Adaptive linear FM sweep corrective system
GB8606572D0 (en) 1986-03-17 1986-04-23 Hewlett Packard Ltd Analysis of digital radio transmissions
JPH0773218B2 (ja) 1987-04-21 1995-08-02 沖電気工業株式会社 Ａｄｐｃｍ符号化・復号化器
CA1332450C (en) 1987-06-23 1994-10-11 Shousei Yoshida Carrier-to-noise detector for digital transmission systems
US4878030A (en) 1987-10-23 1989-10-31 Ford Aerospace & Communications Corporation Linearizer for microwave amplifier
US4800573A (en) * 1987-11-19 1989-01-24 American Telephone And Telegraph Company Equalization arrangement
US4829543A (en) 1987-12-04 1989-05-09 Motorola, Inc. Phase-coherent TDMA quadrature receiver for multipath fading channels
US4847864A (en) 1988-06-22 1989-07-11 American Telephone And Telegraph Company Phase jitter compensation arrangement using an adaptive IIR filter
US4992747A (en) * 1988-08-16 1991-02-12 Myers Glen A Multiple reuse of an FM band
US5043734A (en) 1988-12-22 1991-08-27 Hughes Aircraft Company Discrete autofocus for ultra-high resolution synthetic aperture radar
US5016273A (en) * 1989-01-09 1991-05-14 At&E Corporation Dual communication mode video tape recorder
US4993047A (en) 1989-09-05 1991-02-12 At&T Bell Laboratories Volterra linearizer for digital transmission
DE4001592A1 (de) 1989-10-25 1991-05-02 Philips Patentverwaltung Empfaenger fuer digitales uebertragungssystem
JPH0666606B2 (ja) 1989-12-01 1994-08-24 株式会社東芝 電流増幅回路
US5835857A (en) 1990-03-19 1998-11-10 Celsat America, Inc. Position determination for reducing unauthorized use of a communication system
US5206886A (en) * 1990-04-16 1993-04-27 Telebit Corporation Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in mulicarrier modems
US5121414A (en) 1990-08-09 1992-06-09 Motorola, Inc. Carrier frequency offset equalization
US5703874A (en) * 1990-12-05 1997-12-30 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5581229A (en) 1990-12-19 1996-12-03 Hunt Technologies, Inc. Communication system for a power distribution line
US5111155A (en) * 1991-03-04 1992-05-05 Motorola, Inc. Distortion compensation means and method
US5229765A (en) 1991-05-08 1993-07-20 Halliburton Logging Services, Inc. SP noise cancellation technique
US5233632A (en) 1991-05-10 1993-08-03 Motorola, Inc. Communication system receiver apparatus and method for fast carrier acquisition
US5337014A (en) 1991-06-21 1994-08-09 Harris Corporation Phase noise measurements utilizing a frequency down conversion/multiplier, direct spectrum measurement technique
US5285480A (en) 1991-09-03 1994-02-08 General Electric Company Adaptive MLSE-VA receiver for digital cellular radio
CA2076099A1 (en) 1991-09-03 1993-03-04 Howard Leroy Lester Automatic simulcast alignment
JP2776094B2 (ja) 1991-10-31 1998-07-16 日本電気株式会社 可変変調通信方法
US5221908A (en) 1991-11-29 1993-06-22 General Electric Co. Wideband integrated distortion equalizer
JPH05211670A (ja) 1992-01-14 1993-08-20 Nec Corp 搬送波電力対雑音電力比検出回路
US5206889A (en) 1992-01-17 1993-04-27 Hewlett-Packard Company Timing interpolator
US5285474A (en) 1992-06-12 1994-02-08 The Board Of Trustees Of The Leland Stanford, Junior University Method for equalizing a multicarrier signal in a multicarrier communication system
US5237292A (en) 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics
JP3135999B2 (ja) 1992-09-18 2001-02-19 リーダー電子株式会社 Ｃｎ比測定装置
KR0183143B1 (ko) 1993-02-17 1999-05-15 안쏘니 제이. 살리, 쥬니어 다중-변조 통신 시스템
US5329311A (en) 1993-05-11 1994-07-12 The University Of British Columbia System for determining noise content of a video signal in the disclosure
US5557067A (en) 1993-07-22 1996-09-17 Communications Technology Corporation Pole mounted terminal housing
US5471508A (en) 1993-08-20 1995-11-28 Hitachi America, Ltd. Carrier recovery system using acquisition and tracking modes and automatic carrier-to-noise estimation
JP3560991B2 (ja) 1993-09-20 2004-09-02 株式会社東芝 適応型最尤系列推定装置
US5513215A (en) 1993-09-20 1996-04-30 Glenayre Electronics, Inc. High speed simulcast data system using adaptive compensation
US6088590A (en) 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US5412325A (en) 1993-12-23 1995-05-02 Hughes Aircraft Company Phase noise measurement system and method
US5619503A (en) 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5577067A (en) 1994-02-22 1996-11-19 Comsonics, Inc. Data acquisition and storage system for telecommunication equipment to facilitate alignment and realignment of the telecommunications equipment
US5642358A (en) 1994-04-08 1997-06-24 Ericsson Inc. Multiple beamwidth phased array
US5430770A (en) 1994-04-22 1995-07-04 Rockwell International Corp. Method and apparatus for composite signal separation and PSK/AM/FM demodulation
US5446461A (en) * 1994-04-28 1995-08-29 Hughes Missile Systems Company Concrete penetrating imaging radar
EP0683561A1 (en) 1994-05-18 1995-11-22 Guan-Wu Wang Low-cost low noise block down-converter with a self-oscillating mixer for satellite broadcast receivers
JP2561028B2 (ja) 1994-05-26 1996-12-04 日本電気株式会社 サイドローブキャンセラ
WO1996007260A1 (en) * 1994-08-31 1996-03-07 Sony Corporation Signal transmitter, signal receiver, and signal transmitting-receiving method
US5625640A (en) * 1994-09-16 1997-04-29 Hughes Electronics Apparatus for and method of broadcast satellite network return-link signal transmission
US5937004A (en) 1994-10-13 1999-08-10 Fasulo, Ii; Albert Joseph Apparatus and method for verifying performance of digital processing board of an RF receiver
FR2727590B1 (fr) 1994-11-24 1996-12-27 Alcatel Espace Charge utile de satellite a canaux transparents integres
US5603084C1 (en) 1995-03-02 2001-06-05 Ericsson Inc Method and apparatus for remotely programming a cellular radiotelephone
US5568520A (en) * 1995-03-09 1996-10-22 Ericsson Inc. Slope drift and offset compensation in zero-IF receivers
US5644592A (en) 1995-04-24 1997-07-01 California Institute Of Technology Parallel interference cancellation for CDMA applications
US5751766A (en) 1995-04-27 1998-05-12 Applied Signal Technology, Inc. Non-invasive digital communications test system
US5592481A (en) 1995-06-06 1997-01-07 Globalstar L.P. Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas
US5608331A (en) 1995-06-06 1997-03-04 Hughes Electronics Noise measurement test system
US5724396A (en) 1995-06-07 1998-03-03 Discovision Associates Signal processing system
US5606286A (en) 1995-07-27 1997-02-25 Bains; Devendar S. Predistortion linearization
JP3516421B2 (ja) * 1995-07-27 2004-04-05 株式会社日立メディコ Ｍｒｉ装置
DE19538302C2 (de) 1995-10-16 2001-03-22 Bosch Gmbh Robert Verfahren zur terrestrischen Übertragung digitaler Signale
JP3788823B2 (ja) * 1995-10-27 2006-06-21 株式会社東芝 動画像符号化装置および動画像復号化装置
GB2307152B (en) 1995-11-10 1999-04-07 Motorola Ltd Method and apparatus for enhanced communication capability while maintaining standard channel modulation compatibility
US5956373A (en) 1995-11-17 1999-09-21 Usa Digital Radio Partners, L.P. AM compatible digital audio broadcasting signal transmision using digitally modulated orthogonal noise-like sequences
US6772182B1 (en) * 1995-12-08 2004-08-03 The United States Of America As Represented By The Secretary Of The Navy Signal processing method for improving the signal-to-noise ratio of a noise-dominated channel and a matched-phase noise filter for implementing the same
US5828710A (en) 1995-12-11 1998-10-27 Delco Electronics Corporation AFC frequency synchronization network
KR100321865B1 (ko) 1996-04-12 2002-03-08 다치카와 게이지 수신sir측정방법,장치및송신전력컨트롤러
US6055278A (en) 1996-04-26 2000-04-25 C-Cor.Net Corporation Linearization circuits and methods
US5815531A (en) 1996-06-12 1998-09-29 Ericsson Inc. Transmitter for encoded data bits
US5732113A (en) 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
JP3272246B2 (ja) 1996-07-12 2002-04-08 株式会社東芝 デジタル放送受信装置
JPH1054855A (ja) 1996-08-09 1998-02-24 Advantest Corp スペクトラムアナライザ
FI963317A (fi) 1996-08-26 1998-02-27 Nokia Technology Gmbh Monitasoisten, kaksiulotteisten modulaatioaakkostojen kantoaaltosynkronointi
US6411797B1 (en) * 1996-09-20 2002-06-25 Itt Manufacturing Enterprises, Inc. Method and apparatus for performance characterization of satellite transponders
US5946625A (en) 1996-10-10 1999-08-31 Ericsson, Inc. Method for improving co-channel interference in a cellular system
EP0836303B1 (en) 1996-10-14 2003-02-26 Ntt Mobile Communications Network Inc. Method and apparatus for reduction of peak to average power ratio
DE19647833B4 (de) 1996-11-19 2005-07-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur gleichzeitigen Funkübertragung digitaler Daten zwischen mehreren Teilnehmerstationen und einer Basisstation
US6018556A (en) 1996-11-21 2000-01-25 Dsp Group, Inc. Programmable loop filter for carrier recovery in a radio receiver
US5960040A (en) 1996-12-05 1999-09-28 Raytheon Company Communication signal processors and methods
JP3346198B2 (ja) 1996-12-10 2002-11-18 富士ゼロックス株式会社 能動消音装置
US5987069A (en) 1996-12-24 1999-11-16 Gte Government Systems Corporation Method and apparatus for variably allocating upstream and downstream communication spectra
JPH10190497A (ja) 1996-12-27 1998-07-21 Fujitsu Ltd Ｓｉｒ測定装置
US5978652A (en) 1997-01-10 1999-11-02 Space Systems/Loral, Inc. Common direct broadcasting service system
US5970156A (en) 1997-02-14 1999-10-19 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing periodic interference in audio signals
US6078645A (en) * 1997-02-20 2000-06-20 Lucent Technologies Inc. Apparatus and method for monitoring full duplex data communications
JP3586348B2 (ja) 1997-03-05 2004-11-10 富士通株式会社 信号対干渉電力比測定装置及び信号対干渉電力比測定方法並びにｃｄｍａ通信方式下での送信電力制御方法
US5870443A (en) 1997-03-19 1999-02-09 Hughes Electronics Corporation Symbol timing recovery and tracking method for burst-mode digital communications
AU6870498A (en) * 1997-03-24 1998-10-20 Schlumberger Technologies, Inc. System and method of tracking continuing education information using secure stored data devices
US6212360B1 (en) 1997-04-09 2001-04-03 Ge Capital Spacenet Services, Inc. Methods and apparatus for controlling earth-station transmitted power in a VSAT network
US6040800A (en) * 1997-04-22 2000-03-21 Ericsson Inc. Systems and methods for locating remote terminals in radiocommunication systems
US5905943A (en) * 1997-04-29 1999-05-18 Globalstar L.P. System for generating and using global radio frequency maps
US6314441B1 (en) * 1997-04-30 2001-11-06 Agere Systems Inc Robust method for providing tap leakage in adaptive equalizer systems
US5970098A (en) 1997-05-02 1999-10-19 Globespan Technologies, Inc. Multilevel encoder
JP2001506465A (ja) 1997-05-02 2001-05-15 ユーエスシーエックス 高緯度静止衛星システム
US6172970B1 (en) * 1997-05-05 2001-01-09 The Hong Kong University Of Science And Technology Low-complexity antenna diversity receiver
JPH10327204A (ja) 1997-05-26 1998-12-08 Nec Corp 等化器を用いた位相同期ループ回路
JPH10336262A (ja) 1997-05-28 1998-12-18 Ikegami Tsushinki Co Ltd ディジタル信号の伝送品質測定回路
US6134282A (en) * 1997-06-18 2000-10-17 Lsi Logic Corporation Method for lowpass filter calibration in a satellite receiver
US5819157A (en) * 1997-06-18 1998-10-06 Lsi Logic Corporation Reduced power tuner chip with integrated voltage regulator for a satellite receiver system
US5999793A (en) 1997-06-18 1999-12-07 Lsi Logic Corporation Satellite receiver tuner chip with frequency synthesizer having an externally configurable charge pump
US5870439A (en) 1997-06-18 1999-02-09 Lsi Logic Corporation Satellite receiver tuner chip having reduced digital noise interference
US5966412A (en) 1997-06-30 1999-10-12 Thomson Consumer Electronics, Inc. Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal
US6049566A (en) * 1997-07-24 2000-04-11 Trw Inc. High efficiency signaling with minimum spacecraft hardware
US5970429A (en) 1997-08-08 1999-10-19 Lucent Technologies, Inc. Method and apparatus for measuring electrical noise in devices
US6108374A (en) 1997-08-25 2000-08-22 Lucent Technologies, Inc. System and method for measuring channel quality information
US6052586A (en) * 1997-08-29 2000-04-18 Ericsson Inc. Fixed and mobile satellite radiotelephone systems and methods with capacity sharing
US6125148A (en) 1997-08-29 2000-09-26 Telefonaktiebolaget Lm Ericsson Method for demodulating information in a communication system that supports multiple modulation schemes
US5940025A (en) 1997-09-15 1999-08-17 Raytheon Company Noise cancellation method and apparatus
US6047162A (en) * 1997-09-25 2000-04-04 Com Dev Limited Regional programming in a direct broadcast satellite
US6272679B1 (en) 1997-10-17 2001-08-07 Hughes Electronics Corporation Dynamic interference optimization method for satellites transmitting multiple beams with common frequencies
US6434384B1 (en) * 1997-10-17 2002-08-13 The Boeing Company Non-uniform multi-beam satellite communications system and method
US6002713A (en) 1997-10-22 1999-12-14 Pc Tel, Inc. PCM modem equalizer with adaptive compensation for robbed bit signalling
US5966048A (en) 1997-11-25 1999-10-12 Hughes Electronics Corporation Low IMD amplification method and apparatus
JP3392028B2 (ja) * 1997-11-28 2003-03-31 株式会社ケンウッド 階層化伝送ディジタル復調器
DK0929164T3 (da) 1997-12-18 2000-08-07 Europ Des Satellites Soc Fremgangsmåde og apparat til at bestemme et arbejdspunkt for en ikke-lineær forstærker i en kommunikationskanal
US6128357A (en) 1997-12-24 2000-10-03 Mitsubishi Electric Information Technology Center America, Inc (Ita) Data receiver having variable rate symbol timing recovery with non-synchronized sampling
US5952834A (en) 1998-01-14 1999-09-14 Advanced Testing Technologies, Inc. Low noise signal synthesizer and phase noise measurement system
US6084919A (en) 1998-01-30 2000-07-04 Motorola, Inc. Communication unit having spectral adaptability
US6185716B1 (en) * 1998-01-30 2001-02-06 Maxtor Corporation Dual detector read channel with semi-soft detection
US6131013A (en) 1998-01-30 2000-10-10 Motorola, Inc. Method and apparatus for performing targeted interference suppression
US6219095B1 (en) 1998-02-10 2001-04-17 Wavetek Corporation Noise measurement system
IL123739A (en) * 1998-03-19 2001-11-25 Infineon Technologies Ag Method and equipment for restoring clock timing in XDSL modems and especially VDSL modems
US6313885B1 (en) * 1998-03-25 2001-11-06 Samsung Electronics Co., Ltd. DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements
US6141534A (en) 1998-03-25 2000-10-31 Spacecode Llc Communication satellite system with dynamic downlink resource allocation
US6192088B1 (en) * 1998-03-31 2001-02-20 Lucent Technologies Inc. Carrier recovery system
US6433835B1 (en) * 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
US6657978B1 (en) * 1998-04-23 2003-12-02 Transworld Communications (Usa), Inc. Optimized integrated high capacity digital satellite trunking network
US6731622B1 (en) * 1998-05-01 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Multipath propagation delay determining means using periodically inserted pilot symbols
US6535497B1 (en) * 1998-05-11 2003-03-18 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for multiplexing of multiple users for enhanced capacity radiocommunications
US6597750B1 (en) * 1998-06-19 2003-07-22 Thomson Licensing S.A. Opposite polarization interference cancellation in satellite communication
US6426822B1 (en) * 1998-06-25 2002-07-30 Ipicom, Inc. Method and apparatus for reducing non-linear characteristics of a signal modulator by coherent data collection
US6304594B1 (en) 1998-07-27 2001-10-16 General Dynamics Government Systems Corporation Interference detection and avoidance technique
US6452977B1 (en) * 1998-09-15 2002-09-17 Ibiquity Digital Corporation Method and apparatus for AM compatible digital broadcasting
EP1127424B1 (en) * 1998-11-03 2004-09-29 Broadcom Corporation Dual mode qam/vsb receiver
US6246717B1 (en) * 1998-11-03 2001-06-12 Tektronix, Inc. Measurement test set and method for in-service measurements of phase noise
US6104747A (en) * 1998-11-30 2000-08-15 Motorola, Inc. Method for determining optimum number of complex samples for coherent averaging in a communication system
US6320919B1 (en) 1998-11-30 2001-11-20 Ericsson Inc. Adaptive channel characterization using decoded symbols
US6335951B1 (en) * 1998-12-04 2002-01-01 Itt Manufacturing Enterprises, Inc. Programmable waveform generator for a global positioning system
US6515713B1 (en) * 1998-12-31 2003-02-04 Lg Electronics Inc. Method and apparatus which compensates for channel distortion
US6166601A (en) 1999-01-07 2000-12-26 Wiseband Communications Ltd. Super-linear multi-carrier power amplifier
TW559668B (en) * 1999-02-08 2003-11-01 Advantest Corp Apparatus for and method of measuring a jitter
US6529715B1 (en) * 1999-02-26 2003-03-04 Lucent Technologies Inc. Amplifier architecture for multi-carrier wide-band communications
JP2000278341A (ja) * 1999-03-25 2000-10-06 Sanyo Electric Co Ltd 直交位相復調回路
EP1724917A1 (en) * 1999-03-31 2006-11-22 NTT Mobile Communications Network Inc. Feedforward amplifier
US6369648B1 (en) 1999-04-21 2002-04-09 Hughes Electronics Corporation Linear traveling wave tube amplifier utilizing input drive limiter for optimization
US6177836B1 (en) * 1999-05-07 2001-01-23 The Aerospace Corporation Feed forward linearized traveling wave tube
CA2375846C (en) * 1999-06-18 2008-11-04 Societe Europeenne Des Satellites S.A. Method and apparatus for determining characteristics of components of a communication channel
US6556639B1 (en) * 1999-06-24 2003-04-29 Ibiquity Digital Corporation Method and apparatus for determining transmission mode and synchronization for a digital audio broadcasting signal
US6891897B1 (en) * 1999-07-23 2005-05-10 Nortel Networks Limited Space-time coding and channel estimation scheme, arrangement and method
US6775521B1 (en) * 1999-08-09 2004-08-10 Broadcom Corporation Bad frame indicator for radio telephone receivers
US6574235B1 (en) * 1999-08-12 2003-06-03 Ericsson Inc. Methods of receiving co-channel signals by channel separation and successive cancellation and related receivers
KR100314113B1 (ko) * 1999-08-25 2001-11-15 구자홍 정합 필터 및 필터링방법, 이를 이용한 다매체 디지털 방송수신 장치
US6249180B1 (en) 1999-09-08 2001-06-19 Atmel Corporation Phase noise and additive noise estimation in a QAM demodulator
US7161931B1 (en) * 1999-09-20 2007-01-09 Broadcom Corporation Voice and data exchange over a packet based network
US7073116B1 (en) * 1999-11-23 2006-07-04 Thomson Licensing Error detection/correction coding for hierarchical QAM transmission systems
US7079585B1 (en) * 1999-11-23 2006-07-18 Thomson Licensing Gray encoding for hierarchical QAM transmission systems
US6535801B1 (en) * 2000-01-28 2003-03-18 General Dynamics Decision Systems, Inc. Method and apparatus for accurately determining the position of satellites in geosynchronous orbits
JP2001223665A (ja) * 2000-02-08 2001-08-17 Matsushita Electric Ind Co Ltd 信号符号化伝送装置、信号復号化受信装置、およびプログラム記録媒体
US20020154705A1 (en) * 2000-03-22 2002-10-24 Walton Jay R. High efficiency high performance communications system employing multi-carrier modulation
JP2001267982A (ja) * 2000-03-22 2001-09-28 Matsushita Electric Ind Co Ltd Ｓｔｔｄエンコーディング方法およびダイバシティ送信機
CA2302004A1 (en) * 2000-03-22 2001-09-22 Vajira N. S. Samarasooriya Method and system for achieving carrier frequency synchronization in a high speed receiver
US6307435B1 (en) 2000-03-23 2001-10-23 The Aerospace Corporation High power amplifier linearization method using modified linear-log model predistortion
US6429740B1 (en) * 2000-03-23 2002-08-06 The Aerospace Corporation High power amplifier linearization method using extended saleh model predistortion
US7885314B1 (en) * 2000-05-02 2011-02-08 Kenneth Scott Walley Cancellation system and method for a wireless positioning system
US6377116B1 (en) * 2000-05-08 2002-04-23 Iowa State University Research Foundation, Inc. Pre-distorter and corresponding method for deriving same
JP3786343B2 (ja) * 2000-05-12 2006-06-14 日本ビクター株式会社 光ディスク再生装置
SE517030C2 (sv) * 2000-06-06 2002-04-02 Ericsson Telefon Ab L M Metod och anordning för val av modulerings- och kodningsregler i ett radiokommunikationssystem
US6297691B1 (en) * 2000-06-09 2001-10-02 Rosemount Inc. Method and apparatus for demodulating coherent and non-coherent modulated signals
JP2002010251A (ja) * 2000-06-19 2002-01-11 Matsushita Electric Ind Co Ltd 映像信号符号化装置および映像信号復号化装置
JP2002009728A (ja) * 2000-06-23 2002-01-11 Hitachi Kokusai Electric Inc 直交周波数分割多重変調伝送装置
MXPA02001964A (es) * 2000-08-02 2003-07-21 Mobile Satellite Ventures Lp Reutilizacion de frecuencia satelital-terrestre coordinada.
US6522683B1 (en) * 2000-08-10 2003-02-18 Qualcomm, Incorporated Method and apparatus for adaptive linear equalization for walsh covered modulation
US6718184B1 (en) * 2000-09-28 2004-04-06 Lucent Technologies Inc. Method and system for adaptive signal processing for an antenna array
US6469657B1 (en) * 2000-10-17 2002-10-22 Itt Manufacturing Enterprises, Inc. FFT-based filtering for low-quality signal direction finding
US6745050B1 (en) * 2000-10-23 2004-06-01 Massachusetts Institute Of Technology Multichannel multiuser detection
US7190683B2 (en) * 2000-10-27 2007-03-13 L-3 Communications Corporation Two-dimensional channel bonding in a hybrid CDMA/FDMA fixed wireless access system to provide finely variable rate channels
WO2002047303A1 (fr) * 2000-12-04 2002-06-13 Fujitsu Limited Procede et dispositif d'egalisation temporelle
US7397867B2 (en) * 2000-12-14 2008-07-08 Pulse-Link, Inc. Mapping radio-frequency spectrum in a communication system
US6567762B2 (en) * 2000-12-22 2003-05-20 Agilent Technologies, Inc. Dynamic range extension apparatus and method
US6731700B1 (en) * 2001-01-04 2004-05-04 Comsys Communication & Signal Processing Ltd. Soft decision output generator
JP3545726B2 (ja) * 2001-02-27 2004-07-21 松下電器産業株式会社 受信側装置
US20030002471A1 (en) * 2001-03-06 2003-01-02 Crawford James A. Method for estimating carrier-to-noise-plus-interference ratio (CNIR) for OFDM waveforms and the use thereof for diversity antenna branch selection
US6922439B2 (en) * 2001-03-16 2005-07-26 Advantest Corporation Apparatus for and method of measuring jitter
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7471735B2 (en) * 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7778365B2 (en) * 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
GB2375016B (en) * 2001-04-27 2005-03-16 Tandberg Television Asa Satellite up-link fade compensation
US7046739B2 (en) * 2001-05-18 2006-05-16 Southwest Research Institute Pre-distortion of input signals to form constant envelope signal outputs
US6956924B2 (en) * 2001-08-14 2005-10-18 Northrop Grumman Corporation Efficient implementation of a decision directed phase locked loop (DD-PLL) for use with short block code in digital communication systems
US7239876B2 (en) * 2001-09-06 2007-07-03 Motorola, Inc. Method for increased location receiver sensitivity
US7039122B2 (en) * 2001-10-17 2006-05-02 Itt Manufacturing Enterprises, Inc. Method and apparatus for generating a composite signal
US6700442B2 (en) * 2001-11-20 2004-03-02 Thomas Quang Ha N way phase cancellation power amplifier
US7263119B1 (en) * 2001-11-29 2007-08-28 Marvell International Ltd. Decoding method and apparatus
US7092438B2 (en) * 2002-01-22 2006-08-15 Siemens Communications, Inc. Multilevel decision feedback equalizer
US7065153B2 (en) * 2002-02-06 2006-06-20 The Boeing Company High speed monolithic microwave integrated circuit (MMIC) quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) modulators
KR20030076259A (ko) * 2002-03-19 2003-09-26 술저 헥시스 악티엔게젤샤프트 열교환기 일체형 연료 전지 배터리
US7197084B2 (en) * 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
US7020226B1 (en) * 2002-04-04 2006-03-28 Nortel Networks Limited I/Q distortion compensation for the reception of OFDM signals
US6809587B2 (en) * 2002-04-23 2004-10-26 Mitec Telecom Inc. Active predistorting linearizer with agile bypass circuit for safe mode operation
US7274876B2 (en) * 2002-06-06 2007-09-25 At&T Corp. Integrated electrical/optical hybrid communication system with revertive hitless switch
US20070121718A1 (en) * 2002-06-06 2007-05-31 Chin-Liang Wang System and Method for Time-Domain Equalization in Discrete Multi-tone Systems
AU2003280499A1 (en) * 2002-07-01 2004-01-19 The Directv Group, Inc. Improving hierarchical 8psk performance
US6885708B2 (en) * 2002-07-18 2005-04-26 Motorola, Inc. Training prefix modulation method and receiver
US6953817B2 (en) * 2002-08-05 2005-10-11 Colgate-Palmolive Company Dual component dentinal desensitizing dentifrice
AU2003259425A1 (en) * 2002-09-06 2004-03-29 Koninklijke Philips Electronics N.V. Parameter encoding for an improved atsc dtv system
US8170513B2 (en) * 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
US7548598B2 (en) * 2003-04-07 2009-06-16 Harris Corporation Method and apparatus for iteratively improving the performance of coded and interleaved communication systems
US6999510B2 (en) * 2003-04-18 2006-02-14 Optichron, Inc. Nonlinear inversion
KR101005036B1 (ko) * 2003-05-16 2010-12-30 톰슨 라이센싱 레이어된 그리고 계층적인 변조 시스템을 위한 통합 수신기
US7230992B2 (en) * 2003-11-26 2007-06-12 Delphi Technologies, Inc. Method to create hierarchical modulation in OFDM

Also Published As

Publication number Publication date
AR033277A1 (es) 2003-12-10
US7483495B2 (en) 2009-01-27
IL157960A (en) 2008-08-07
US20090052590A1 (en) 2009-02-26
EP1876705A2 (en) 2008-01-09
US7209524B2 (en) 2007-04-24
WO2002089371A1 (en) 2002-11-07
WO2002089371A8 (en) 2003-02-27
NO20026115L (no) 2002-12-19
NO328961B1 (no) 2010-06-28
US20020181604A1 (en) 2002-12-05
CA2442400A1 (en) 2002-11-07
ES2398100T3 (es) 2013-03-13
NO20026115D0 (no) 2002-12-19
EP1876705A3 (en) 2008-07-16
EP1382141B1 (en) 2012-11-28
WO2004040924A1 (en) 2004-05-13
ES2403213T3 (es) 2013-05-16
EP1876705B1 (en) 2013-02-27
US20070116156A1 (en) 2007-05-24
CA2442400C (en) 2009-10-20
EP1382141A1 (en) 2004-01-21

Similar Documents

Publication Publication Date Title
IL157960A0 (en) Power division multiplexing with incoherent signals and fixed power hierarchy
GB9803725D0 (en) Wavelength division multiplexing
EP1018065A4 (en) MULTIPLEXER POWER CONVERTER
DE69908491D1 (de) Integralhelm
IL128503A (en) Wdm multiplexer
IT1307249B1 (it) Fascetta profilata
DE69934755D1 (de) Integralhelm
DE69906447D1 (de) Entwurfsdruck
GB2361850B (en) Multiplexing and de-multiplexing
AU2002258916A1 (en) Power division multiplexing with incoherent signals and fixed powder hierarchy
GB2344524B (en) Tourniquet
DE69938028D1 (de) Verbindungsband
IL132766A0 (en) Built-in sink
TW354481U (en) Hygienic band
GB0029217D0 (en) Endless power system
TW391493U (en) Linear transmission structure
HU9800152V0 (en) Air-reflecting foil with feltlamina
GB9817036D0 (en) Pressure converter
SE9800559D0 (sv) Hjälm
FI982820A0 (fi) Kypärä
AU133681S (en) Double sink
AU136429S (en) Sink
AU133346S (en) Sink
AU136627S (en) Sink
AU133345S (en) Sink

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed