FI922388A - Maximisannolikhetssekvenssestimation baserad pao ekvalisation hos en digital cellular mobilmottagare - Google Patents

Maximisannolikhetssekvenssestimation baserad pao ekvalisation hos en digital cellular mobilmottagare Download PDF

Info

Publication number
FI922388A
FI922388A FI922388A FI922388A FI922388A FI 922388 A FI922388 A FI 922388A FI 922388 A FI922388 A FI 922388A FI 922388 A FI922388 A FI 922388A FI 922388 A FI922388 A FI 922388A
Authority
FI
Finland
Prior art keywords
digital cellular
mobilmottagare
maximisannolikhetssekenenestestimation
ekvalisation
hos
Prior art date
Application number
FI922388A
Other languages
English (en)
Other versions
FI922388A0 (fi
Inventor
Michael I Parr
John L Watson
T G Vishwanath
Original Assignee
Hughes Aircraft Co
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 Aircraft Co filed Critical Hughes Aircraft Co
Publication of FI922388A0 publication Critical patent/FI922388A0/fi
Publication of FI922388A publication Critical patent/FI922388A/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03273—Arrangements for operating in conjunction with other apparatus with carrier recovery circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuits Of Receivers In General (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogenated Pyridines (AREA)
  • Noise Elimination (AREA)
FI922388A 1991-06-27 1992-05-25 Maximisannolikhetssekvenssestimation baserad pao ekvalisation hos en digital cellular mobilmottagare FI922388A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/722,440 US5263026A (en) 1991-06-27 1991-06-27 Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver

Publications (2)

Publication Number Publication Date
FI922388A0 FI922388A0 (fi) 1992-05-25
FI922388A true FI922388A (fi) 1992-12-28

Family

ID=24901847

Family Applications (1)

Application Number Title Priority Date Filing Date
FI922388A FI922388A (fi) 1991-06-27 1992-05-25 Maximisannolikhetssekvenssestimation baserad pao ekvalisation hos en digital cellular mobilmottagare

Country Status (11)

Country Link
US (4) US5263026A (fi)
EP (1) EP0520969B1 (fi)
JP (1) JPH0828751B2 (fi)
KR (1) KR960006476B1 (fi)
AT (1) ATE165702T1 (fi)
AU (3) AU643147B2 (fi)
CA (1) CA2068964A1 (fi)
DE (1) DE69225274T2 (fi)
FI (1) FI922388A (fi)
NO (1) NO922363L (fi)
TW (1) TW201372B (fi)

Families Citing this family (199)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
JP2683665B2 (ja) * 1991-11-27 1997-12-03 日本電気株式会社 最尤系列推定装置
DE69332237T2 (de) * 1992-06-18 2003-04-17 Oki Electric Industry Co., Ltd. Vorrichtung und verfahren zur maximal wahrscheinlichkeitsfolgeschätzung
US5335250A (en) * 1992-10-22 1994-08-02 Ericsson Ge Mobile Communications Inc. Method and apparatus for bidirectional demodulation of digitally modulated signals
US5677934A (en) * 1992-12-30 1997-10-14 Nokia Mobile Phones Limited Multipath propagation compensation in a TDMA system
DE4311656C1 (de) * 1993-04-08 1994-04-21 Ant Nachrichtentech Geradeinterpolationsmethode zur Kanalstoßantwortadaption in Empfängern für TDMA-Mobilfunksysteme
DE4311655C1 (de) * 1993-04-08 1994-04-21 Ant Nachrichtentech Kalman-Filter zur Kanalstoßantwortadaption in Empfängern für TDMA-Mobilfunksysteme
DE4311604C1 (de) * 1993-04-08 1994-07-28 Ant Nachrichtentech Zuverlässigkeitsgesteuerte Datendetektion in Empfängern für TDMA-Mobilfunksysteme
US5465412A (en) * 1993-05-19 1995-11-07 Motorola, Inc. Apparatus and method for determining a point in time for detecting a sampled signal in a receiver
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
US5438595A (en) * 1993-08-17 1995-08-01 Teknekron Communication Systems, Inc. Method of estimating the speed of a mobile unit in a digital wireless communication system
US5491726A (en) * 1993-08-17 1996-02-13 Tcsi Corp. Method and apparatus to determine the frequency and time slot position in a digital wireless communication session
US5581579A (en) * 1993-08-17 1996-12-03 Tcsi Corporation Method and apparatus to adaptively control the frequency of reception in a digital wireless communication system
WO1995005705A1 (en) * 1993-08-17 1995-02-23 Teknekron Communications Systems, Inc. Digital wireless communication system and method of operation therefor
US5436942A (en) * 1993-08-17 1995-07-25 Teknekron Communications Systems, Inc. Method of equalizing digitally encoded signals transmitted in a plurality of non-contiguous time slots
US5371471A (en) * 1993-10-29 1994-12-06 General Electric Company Low complexity adaptive equalizer radio receiver employing direct reference state updates
JP2571008B2 (ja) * 1993-12-24 1997-01-16 日本電気株式会社 適応型最尤系列推定器
US5790606A (en) * 1994-01-11 1998-08-04 Ericsson Inc. Joint demodulation using spatial maximum likelihood
US5708971A (en) * 1994-01-11 1998-01-13 Ericsson Inc. Two-way paging system and apparatus
US5533063A (en) * 1994-01-31 1996-07-02 The Regents Of The University Of California Method and apparatus for multipath channel shaping
US5648991A (en) * 1994-02-16 1997-07-15 Kabushiki Kaisha Toshiba Sampling phase synchronizing apparatus and bidirectional maximum likelihood sequence estimation scheme therefore
US5724390A (en) * 1994-03-02 1998-03-03 Lucent Technologies Inc. MLSE before derotation and after derotation
JP3787790B2 (ja) * 1994-03-25 2006-06-21 富士通株式会社 タイミング再生回路及びディジタル伝送用受信回路
US5553076A (en) * 1994-05-02 1996-09-03 Tcsi Corporation Method and apparatus for a wireless local area network
US5513221A (en) * 1994-05-19 1996-04-30 Hughes Aircraft Company Doppler bandwidth dependent estimation of a communications channel
FI99066C (fi) * 1995-01-31 1997-09-25 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä
US5715281A (en) * 1995-02-21 1998-02-03 Tait Electronics Limited Zero intermediate frequency receiver
AU751912B2 (en) * 1995-02-24 2002-08-29 Ericsson Inc. Joint demodulation using spatial maximum likelihood
US5592514A (en) * 1995-03-08 1997-01-07 Lucent Technologies Inc. Method of performing signal reconstruction at the receiving end of a communications system, such as for GSM
US5729558A (en) * 1995-03-08 1998-03-17 Lucent Technologies Inc. Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
AU728639B2 (en) * 1995-03-13 2001-01-11 Ericsson Inc. A two-way paging system and apparatus
JP3859716B2 (ja) * 1995-08-16 2006-12-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 伝送システム
FI111582B (fi) * 1995-10-23 2003-08-15 Nokia Corp Menetelmä ja piirijärjestely matkaviestimen sisäisten ajatusvirheiden kompensoimiseksi
US5805638A (en) * 1995-12-04 1998-09-08 Lucent Technologies Inc. Systems and methods of digital wireless communication using equalization
EP0790727A3 (de) * 1996-02-19 1999-06-23 Ascom Tech Ag Verfahren zur Demodulation eines Empfangssignals
EP0792051A3 (de) * 1996-02-23 1999-07-07 Ascom Tech Ag Verfahren für die kohärente Demodulation eines Empfangssignals
JP3310160B2 (ja) * 1996-03-29 2002-07-29 松下電器産業株式会社 スペクトラム拡散方式受信装置
US5838739A (en) * 1996-03-29 1998-11-17 Ericsson Inc. Channel estimator circuitry, and associated method, for a digital communication system
DE19614544C1 (de) * 1996-04-12 1997-08-28 Philips Patentverwaltung Entzerrer mit einem Sequenzschätzverfahren mit Zustandsreduktion für einen Empfänger in einem digitalen Übertragungssystem
AT408933B (de) * 1996-05-20 2002-04-25 Josef Dipl Ing Fuhl Verfahren und vorrichtung zur erhöhung der teilnehmerkapazität von zellularen mobilfunknetzen
FR2751811B1 (fr) * 1996-07-24 1998-10-09 Matra Communication Procede de demodulation numerique
FR2751815B1 (fr) * 1996-07-24 1998-10-02 Matra Communication Procede de demodulation numerique d'un segment de signal
FR2751812B1 (fr) * 1996-07-24 1999-02-26 Matra Communication Procede de demodulation numerique et de decodage
US6067319A (en) * 1996-09-04 2000-05-23 Integrated Device Technology, Inc. Method for equalization of a quadrature amplitude modulated signal
JP3404228B2 (ja) * 1996-09-10 2003-05-06 富士通株式会社 クロック位相検出回路
AU4649297A (en) * 1996-09-24 1998-04-17 Motorola, Inc. Device, system and method for adaptive self-noise cancellation for decision directed timing recovery
US6097770A (en) * 1996-10-31 2000-08-01 Lucent Technologies Inc. Frequency offset estimation for wireless systems based on channel impulse response
US5909465A (en) * 1996-12-05 1999-06-01 Ericsson Inc. Method and apparatus for bidirectional demodulation of digitally modulated signals
US5943375A (en) * 1997-02-06 1999-08-24 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station
US5914981A (en) * 1997-02-24 1999-06-22 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station for a discrete multitone spread spectrum communications system
IL120222A0 (en) * 1997-02-14 1997-06-10 D S P C Israel Ltd Method and apparatus for acquiring and tracking the sampling phase of a signal
AU723679B2 (en) * 1997-03-04 2000-08-31 Mitsubishi Denki Kabushiki Kaisha Receiver with a frequency offset correcting function
US5870443A (en) * 1997-03-19 1999-02-09 Hughes Electronics Corporation Symbol timing recovery and tracking method for burst-mode digital communications
FR2762164B1 (fr) * 1997-04-14 1999-09-24 Nortel Matra Cellular Sondage a ponderation temporelle d'un canal de transmission
US6373858B1 (en) * 1997-04-21 2002-04-16 Hughes Electronics Corporation Burst format and associated signal processing to improve frequency and timing estimation for random access channels
IL120898A (en) * 1997-05-22 2000-02-17 D S P C Israel Ltd Bi-directional channel analysis
US6333953B1 (en) * 1997-07-21 2001-12-25 Ericsson Inc. System and methods for selecting an appropriate detection technique in a radiocommunication system
FI106681B (fi) * 1997-08-29 2001-03-15 Nokia Networks Oy Parametrin estimointimenetelmä ja vastaanotin
IL121843A (en) * 1997-09-28 2000-06-29 Dspc Israel Ltd Detection in the presence of co-channel interference
WO1999021090A1 (en) * 1997-10-23 1999-04-29 Sony Electronics, Inc. Apparatus and method for providing robust error recovery for errors that occur in a lossy transmission environment
US6282684B1 (en) 1997-10-23 2001-08-28 Sony Corporation Apparatus and method for recovery of data in a lossy transmission environment
US6263468B1 (en) 1997-10-23 2001-07-17 Sony Corporation Apparatus and method for partial buffering transmitted data to provide robust error recovery in a lossy transmission environment
US6581170B1 (en) 1997-10-23 2003-06-17 Sony Corporation Source coding to provide for robust error recovery during transmission losses
DE19747457C2 (de) * 1997-10-27 2000-04-06 Siemens Ag Verfahren und Anordnung zur Übertragung von Daten über eine Funkschnittstelle in einem Funk-Kommunikationssystem
JP3070569B2 (ja) * 1998-02-04 2000-07-31 日本電気株式会社 自動等化器及びこれに用いるサンプリングクロック生成方法並びに記録媒体
US6208617B1 (en) * 1998-02-27 2001-03-27 Lucent Technologies, Inc. Channel tracking in a mobile receiver
US6256304B1 (en) 1998-03-31 2001-07-03 Nokia Mobile Phones, Limited Mobile station using synchronization word order information for improved channel acquisition
CA2269925C (en) * 1998-04-30 2004-02-03 Lucent Technologies Inc. Iterative channel estimation
US6370397B1 (en) * 1998-05-01 2002-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Search window delay tracking in code division multiple access communication systems
US6731622B1 (en) 1998-05-01 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Multipath propagation delay determining means using periodically inserted pilot symbols
GB9810686D0 (en) * 1998-05-19 1998-07-15 King S College London Dual direction estimator
US6411613B1 (en) * 1998-08-12 2002-06-25 Lucent Technologies Inc. Method for formatting and conveying information in a wireless telecommunication system
JP3029031B2 (ja) 1998-09-03 2000-04-04 日本電気株式会社 内挿同期検波方法と無線通信システム
US6389040B1 (en) 1998-09-11 2002-05-14 Lucent Technologies Inc. Apparatus and method for generating a frequency offset estimate for communication systems having frequency selecting fading channels
US6393068B1 (en) 1998-09-22 2002-05-21 Agere Systems Guardian Corp. Communication channel and frequency offset estimator
US6414990B1 (en) * 1998-09-29 2002-07-02 Conexant Systems, Inc. Timing recovery for a high speed digital data communication system based on adaptive equalizer impulse response characteristics
US6381469B1 (en) * 1998-10-02 2002-04-30 Nokia Corporation Frequency equalizer, and associated method, for a radio telephone
US6411649B1 (en) * 1998-10-20 2002-06-25 Ericsson Inc. Adaptive channel tracking using pilot sequences
MY130820A (en) * 1998-12-16 2007-07-31 Ericsson Telefon Ab L M Channel estimation for a cdma system using pre-defined symbols in addition to pilot symbols
US6363118B1 (en) 1999-02-12 2002-03-26 Sony Corporation Apparatus and method for the recovery of compression constants in the encoded domain
US6151416A (en) * 1999-02-12 2000-11-21 Sony Corporation Method and apparatus for adaptive class tap selection according to multiple classification
US6519369B1 (en) 1999-02-12 2003-02-11 Sony Corporation Method and apparatus for filter tap expansion
US6418548B1 (en) 1999-02-12 2002-07-09 Sony Corporation Method and apparatus for preprocessing for peripheral erroneous data
US6178266B1 (en) 1999-02-12 2001-01-23 Sony Corporation Method and apparatus for the recovery of compression constants in the encoded domain
US6307979B1 (en) 1999-02-12 2001-10-23 Sony Corporation Classified adaptive error recovery method and apparatus
US6154761A (en) * 1999-02-12 2000-11-28 Sony Corporation Classified adaptive multiple processing system
US6621936B1 (en) 1999-02-12 2003-09-16 Sony Corporation Method and apparatus for spatial class reduction
US6535148B1 (en) 1999-02-12 2003-03-18 Sony Corporation Method and apparatus for truncated decoding
US7010737B2 (en) * 1999-02-12 2006-03-07 Sony Corporation Method and apparatus for error data recovery
US6192161B1 (en) 1999-02-12 2001-02-20 Sony Corporation Method and apparatus for adaptive filter tap selection according to a class
US6170074B1 (en) 1999-02-12 2001-01-02 Sony Corporation Source coding to provide for robust error recovery
US6307560B1 (en) 1999-02-12 2001-10-23 Sony Corporation Classified adaptive spatio-temporal format conversion method and apparatus
US6141393A (en) * 1999-03-03 2000-10-31 Motorola, Inc. Method and device for channel estimation, equalization, and interference suppression
US6567482B1 (en) * 1999-03-05 2003-05-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient synchronization in spread spectrum communications
JP3860369B2 (ja) * 1999-03-17 2006-12-20 パイオニア株式会社 ディジタル信号受信システムにおける判定帰還型等化器
JP3767238B2 (ja) * 1999-03-26 2006-04-19 松下電器産業株式会社 信号処理装置
US7565546B2 (en) 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
US7730300B2 (en) 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US6697489B1 (en) 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US6674815B2 (en) * 1999-06-16 2004-01-06 Ericsson, Inc Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel
US6493842B1 (en) 1999-06-29 2002-12-10 Sony Corporation Time-varying randomization for data synchronization and implicit information transmission
US6473876B1 (en) 1999-06-29 2002-10-29 Sony Corporation Method and apparatus for encoding of bitstreams using rotation
US6389562B1 (en) 1999-06-29 2002-05-14 Sony Corporation Source code shuffling to provide for robust error recovery
US6549672B1 (en) * 1999-06-29 2003-04-15 Sony Corporation Method and apparatus for recovery of encoded data using central value
JP3419349B2 (ja) * 1999-07-07 2003-06-23 日本電気株式会社 自動等化器におけるタイミング再生回路及びそのタイミング再生方法
US6351494B1 (en) 1999-09-24 2002-02-26 Sony Corporation Classified adaptive error recovery method and apparatus
US6522785B1 (en) 1999-09-24 2003-02-18 Sony Corporation Classified adaptive error recovery method and apparatus
US6539517B1 (en) 1999-11-09 2003-03-25 Sony Corporation Data transformation for explicit transmission of control information
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
SE516962C2 (sv) * 1999-11-25 2002-03-26 Ericsson Telefon Ab L M Digital kommunikationsmottagare med inbyggd styrenhet för in- och urkoppling av kanalföljare beroende av kommunikationskanalens kvalitet
US7092457B1 (en) * 2000-01-18 2006-08-15 University Of Southern California Adaptive iterative detection
US6603958B1 (en) * 2000-02-09 2003-08-05 Nortel Networks Limited Method and apparatus for a carrier frequency control in a wireless communication system
US7225164B1 (en) 2000-02-15 2007-05-29 Sony Corporation Method and apparatus for implementing revocation in broadcast networks
CN1350729A (zh) * 2000-03-31 2002-05-22 三菱电机株式会社 频率自动控制方法和装置以及解调装置
JP3581294B2 (ja) 2000-03-31 2004-10-27 株式会社東芝 受信装置
US7254118B1 (en) 2000-05-22 2007-08-07 Qualcomm Incorporated Method and apparatus in a CDMA communication system
US7006581B2 (en) * 2000-05-25 2006-02-28 Vigil Armando J Method for demodulating a digital signal subjected to multipath propagation impairment and an associated receiver
EP1540848B1 (en) * 2000-08-03 2009-02-11 Infineon Technologies AG Flexible tdma system architecture
US6954644B2 (en) 2000-12-04 2005-10-11 Telefonaktiebolaget Lm Ericsson (Publ) Using geographical coordinates to determine mobile station time position for synchronization during diversity handover
US6907245B2 (en) 2000-12-04 2005-06-14 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic offset threshold for diversity handover in telecommunications system
US6980803B2 (en) * 2000-12-04 2005-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Using statistically ascertained position for starting synchronization searcher during diversity handover
KR100397353B1 (ko) * 2001-02-07 2003-09-13 광주과학기술원 Ｏｆｄｍ 시스템용 원-탭 등화기뱅크의 신호왜곡 보상방법
US6912249B2 (en) * 2001-03-15 2005-06-28 Telefonaktiebolaget L M Ericsson (Publ) Method and system for training a radio receiver
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7350082B2 (en) 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7151831B2 (en) 2001-06-06 2006-12-19 Sony Corporation Partial encryption and PID mapping
US6940927B2 (en) * 2001-07-17 2005-09-06 Lockheed Martin Corporation Simplified symbol timing tracking circuit for a CPM modulated signal
US6961921B2 (en) 2001-09-06 2005-11-01 Interdigital Technology Corporation Pipeline architecture for maximum a posteriori (MAP) decoders
US7155012B2 (en) 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US7292691B2 (en) 2002-01-02 2007-11-06 Sony Corporation Progressive video refresh slice detection
US7233669B2 (en) 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7215770B2 (en) 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7218738B2 (en) 2002-01-02 2007-05-15 Sony Corporation Encryption and content control in a digital broadcast system
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7376233B2 (en) 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7039938B2 (en) 2002-01-02 2006-05-02 Sony Corporation Selective encryption for video on demand
US7302059B2 (en) 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US7242773B2 (en) 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US6947753B2 (en) * 2002-03-13 2005-09-20 Telefonaktiebolaget L M Ericsson (Publ) Determination of mobile station location
US7530084B2 (en) 2002-05-28 2009-05-05 Sony Corporation Method and apparatus for synchronizing dynamic graphics
US20040005001A1 (en) * 2002-07-02 2004-01-08 Jones Keith R. Gain adaptive equalizer
GB2392066B (en) * 2002-08-16 2005-11-09 Toshiba Res Europ Ltd Equaliser apparatus and methods
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7724907B2 (en) 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
US8667525B2 (en) 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US7409702B2 (en) 2003-03-20 2008-08-05 Sony Corporation Auxiliary program association table
US7292692B2 (en) 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
JP4000088B2 (ja) * 2003-05-09 2007-10-31 松下電器産業株式会社 無線受信装置および受信フィルタリング方法
DE10341107B3 (de) * 2003-09-05 2005-05-19 Infineon Technologies Ag Verfahren und Empfangseinheit zur Kompensation eines Frequenzversatzes und/oder einer zeitlichen Änderung der Phase eines Übertragungskanals durch empfängerseitiges Auswerten von Randsymbolen eines empfangenen Datenbursts
US7286667B1 (en) 2003-09-15 2007-10-23 Sony Corporation Decryption system
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US7346163B2 (en) 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US7263187B2 (en) 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US7620180B2 (en) 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US7343013B2 (en) 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US7171162B2 (en) * 2003-11-24 2007-01-30 Spreadtrum Communications Corporation Method and apparatus for frequency estimation using iterative filtering in a GSM communications system
US7995648B2 (en) * 2004-04-09 2011-08-09 Trident Microsystems (Far East) Ltd. Advanced digital receiver
CA2560729A1 (en) * 2004-04-09 2005-10-27 Micronas Semiconductors, Inc. Apparatus for and method of developing equalized values from samples of a signal received from a channel
WO2006020950A1 (en) * 2004-08-12 2006-02-23 Micronas Semiconductors, Inc. Automatic gain control unit of a receiver
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US7570689B2 (en) * 2005-02-14 2009-08-04 Interdigital Technology Corporation Advanced receiver with sliding window block linear equalizer
JP2006311353A (ja) * 2005-04-28 2006-11-09 Samsung Electronics Co Ltd ダウンコンバータおよびアップコンバータ
US7720179B2 (en) * 2005-05-27 2010-05-18 Marvell World Trade Ltd. Method for timing detection
GB2432280B (en) * 2005-11-11 2007-10-31 Samsung Electronics Co Ltd Mobile communications
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7555464B2 (en) 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management
US8761387B2 (en) 2006-05-04 2014-06-24 Mindspeed Technologies, Inc. Analog transmit crosstalk canceller
EP1903702A1 (en) * 2006-09-19 2008-03-26 STMicroelectronics N.V. Method and device for estimating the drift between two clocks, in particular for ranging applications in UWB-LDR technology
JP5105834B2 (ja) * 2006-11-17 2012-12-26 キヤノン株式会社 制御装置及びその制御方法、通信装置及びその制御方法、通信システム、及び、プログラム
WO2009055035A2 (en) * 2007-10-26 2009-04-30 Mindspeed Technologies, Inc. High sensitivity two-stage amplifier
CN101933285B (zh) * 2007-11-06 2013-01-02 交互数字专利控股公司 用于实现物理层密钥生成的方法和装置
EP2351289A1 (en) * 2008-09-19 2011-08-03 Interdigital Patent Holdings, Inc. Authentication for secure wireless communication
US7948323B2 (en) * 2009-05-06 2011-05-24 Mindspeed Technologies, Inc. Linear transimpedance amplifier with wide dynamic range for high rate applications
US7973602B2 (en) * 2009-05-06 2011-07-05 Mindspeed Technologies, Inc. Variable gain amplifier
US20110013685A1 (en) * 2009-07-14 2011-01-20 Advanced Receiver Technologies, Llc Channel and Equalization Coefficient Based Timing Recovery
JP4796212B1 (ja) * 2011-05-16 2011-10-19 パナソニック株式会社 受信装置及び受信方法
JP4796213B1 (ja) * 2011-05-16 2011-10-19 パナソニック株式会社 等化装置及び等化方法
US9107245B2 (en) 2011-06-09 2015-08-11 Mindspeed Technologies, Inc. High accuracy, high dynamic range LED/laser driver
US9559875B2 (en) * 2012-05-09 2017-01-31 Northrop Grumman Systems Corporation Blind equalization in a single carrier wideband channel
US9385606B2 (en) 2012-12-03 2016-07-05 M/A-Com Technology Solutions Holdings, Inc. Automatic buck/boost mode selection system for DC-DC converter
US8873180B2 (en) 2013-03-11 2014-10-28 Lsi Corporation Sampling-phase acquisition based on channel-impulse-response estimation
US10097908B2 (en) 2014-12-31 2018-10-09 Macom Technology Solutions Holdings, Inc. DC-coupled laser driver with AC-coupled termination element
US9450788B1 (en) 2015-05-07 2016-09-20 Macom Technology Solutions Holdings, Inc. Equalizer for high speed serial data links and method of initialization
CN107850660B (zh) * 2015-07-17 2021-06-15 株式会社村田制作所 位置检测系统以及计算机程序
US10044328B2 (en) 2015-07-20 2018-08-07 Macom Technology Solutions Holdings, Inc. Transimpedance amplifier with bandwidth extender
CN105162737A (zh) * 2015-09-11 2015-12-16 中国人民解放军国防科学技术大学 用于软件无线电系统的低复杂度自适应单载波频域均衡方法及装置
TWI750216B (zh) 2016-08-30 2021-12-21 美商Ｍａｃｏｍ技術方案控股公司 具分散式架構之驅動器
US10630052B2 (en) 2017-10-04 2020-04-21 Macom Technology Solutions Holdings, Inc. Efficiency improved driver for laser diode in optical communication
US11005573B2 (en) 2018-11-20 2021-05-11 Macom Technology Solutions Holdings, Inc. Optic signal receiver with dynamic control
US11575437B2 (en) 2020-01-10 2023-02-07 Macom Technology Solutions Holdings, Inc. Optimal equalization partitioning
CN115191090B (zh) 2020-01-10 2024-06-14 Macom技术解决方案控股公司 最佳均衡划分
US12013423B2 (en) 2020-09-30 2024-06-18 Macom Technology Solutions Holdings, Inc. TIA bandwidth testing system and method
US11658630B2 (en) 2020-12-04 2023-05-23 Macom Technology Solutions Holdings, Inc. Single servo loop controlling an automatic gain control and current sourcing mechanism
US11616529B2 (en) 2021-02-12 2023-03-28 Macom Technology Solutions Holdings, Inc. Adaptive cable equalizer

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351943A (en) * 1965-10-13 1967-11-07 George B Bush Correlation doppler system
US4578800A (en) * 1982-07-12 1986-03-25 Yutaka Yasuda Synchronization circuit for a Viterbi decoder
US4583236A (en) * 1983-11-04 1986-04-15 Racal Data Communications Inc. Modified absolute phase detector
US4601044A (en) * 1983-11-04 1986-07-15 Racal Data Communications Inc. Carrier-phase adjustment using absolute phase detector
US4554509A (en) * 1984-08-27 1985-11-19 Hrb-Singer, Inc. Frequency shift keyed demodulation system
US4745625A (en) * 1986-03-12 1988-05-17 Codex Corporation Transition detector
NO163120C (no) * 1987-05-19 1990-04-04 Sintef Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.
CA1305768C (en) * 1987-11-16 1992-07-28 Masanobu Arai Digital signal receiving circuit with means for controlling a baud rate sampling phase by a power of sampled signals
SE460086B (sv) * 1987-11-27 1989-09-04 Ericsson Telefon Ab L M Anordning foer korrigering av frekvensen i en koherent mottagare
US4862484A (en) * 1988-01-21 1989-08-29 Harris Corporation Apparatus for clock recovery from digital data
GB2215567B (en) * 1988-03-05 1992-11-18 Plessey Co Plc Improvements in or relating to equalisers
FR2628916B1 (fr) * 1988-03-15 1990-06-29 Alcatel Thomson Faisceaux Dispositif de synchronisation en modulation de phase a quatre etats decalee
FR2628914B1 (fr) * 1988-03-18 1990-06-29 Alcatel Thomson Faisceaux Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace, comprenant un combineur de diversite
JPH0687540B2 (ja) * 1988-11-10 1994-11-02 日本電気株式会社 復調装置
SE462943B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer frekvensstyrning av en koherent radiomottagare
DE3911999A1 (de) * 1989-04-12 1990-10-18 Philips Patentverwaltung Uebertragungssystem
CA2021232C (en) * 1989-07-17 1993-09-21 Hiroyasu Muto Diversity receiving system for use in digital radio communication with means for selecting branch by estimating propagation path property
US5295142A (en) * 1989-07-18 1994-03-15 Sony Corporation Viterbi decoder
DE3926277A1 (de) * 1989-08-09 1991-02-14 Philips Patentverwaltung Empfaenger fuer zeitvariant verzerrte datensignale
US5020078A (en) * 1989-08-11 1991-05-28 Bell Communications Research, Inc. Baudrate timing recovery technique
US5031194A (en) * 1989-08-11 1991-07-09 Bell Communications Research, Inc. Wideband digital equalizers for subscriber loops
US5144644A (en) * 1989-10-13 1992-09-01 Motorola, Inc. Soft trellis decoding
JP2508298B2 (ja) * 1989-10-18 1996-06-19 日本電気株式会社 ディジタル信号受信方式及び受信装置
DE4001592A1 (de) * 1989-10-25 1991-05-02 Philips Patentverwaltung Empfaenger fuer digitales uebertragungssystem
JPH03154435A (ja) * 1989-11-13 1991-07-02 Toshiba Corp 判定帰還形等化方式
US5031193A (en) * 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals
JPH03195129A (ja) * 1989-12-22 1991-08-26 Mitsubishi Electric Corp 最尤系列推定装置
SE465245B (sv) * 1989-12-22 1991-08-12 Ericsson Telefon Ab L M Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
CA2048210C (en) * 1990-07-31 1995-11-28 Yukitsuna Furuya Blind type sequence estimator for use in communications system
US5182749A (en) * 1990-12-21 1993-01-26 Motorola, Inc. Receiver for recovering data in a forward and reverse direction in time
US5142551A (en) * 1991-02-28 1992-08-25 Motorola, Inc. Signal weighting system for digital receiver
US5245611A (en) * 1991-05-31 1993-09-14 Motorola, Inc. Method and apparatus for providing carrier frequency offset compensation in a tdma communication system
US5287388A (en) * 1991-06-25 1994-02-15 Kabushiki Kaisha Toshiba Frequency offset removal method and apparatus
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
FR2685594B1 (fr) * 1991-12-19 1994-01-28 Alcatel Telspace Dispositif de recuperation de rythme pour installation de reception utilisant l'egalisation auto-adaptative a sur-echantillonnage associee a la demodulation differentiellement coherente.
US5400362A (en) * 1993-03-29 1995-03-21 General Electric Company Double sided slot traversing decoding for time division multiple access (TDMA) radio systems

Also Published As

Publication number Publication date
EP0520969A3 (en) 1993-10-13
CA2068964A1 (en) 1992-12-28
EP0520969A2 (en) 1992-12-30
KR960006476B1 (ko) 1996-05-16
TW201372B (fi) 1993-03-01
US5263026A (en) 1993-11-16
JPH05327785A (ja) 1993-12-10
US5563888A (en) 1996-10-08
DE69225274D1 (de) 1998-06-04
AU1854592A (en) 1993-01-07
FI922388A0 (fi) 1992-05-25
AU650206B2 (en) 1994-06-09
US5471501A (en) 1995-11-28
DE69225274T2 (de) 1999-01-14
EP0520969B1 (en) 1998-04-29
US5537419A (en) 1996-07-16
AU4607993A (en) 1993-11-25
KR930001609A (ko) 1993-01-16
AU4609993A (en) 1993-11-25
JPH0828751B2 (ja) 1996-03-21
NO922363D0 (no) 1992-06-16
AU650593B2 (en) 1994-06-23
AU643147B2 (en) 1993-11-04
NO922363L (no) 1992-12-28
ATE165702T1 (de) 1998-05-15

Similar Documents

Publication Publication Date Title
FI922388A (fi) Maximisannolikhetssekvenssestimation baserad pao ekvalisation hos en digital cellular mobilmottagare
EP0842568B1 (en) Adaptive despreader
US7151916B2 (en) Method of receiving a signal and a receiver
CA2061851A1 (en) Adaptive equalizer for digital cellular radio
GB2219469A (en) A decision feedback equaliser and a method of operating a decision feedback equaliser
GB2414147A (en) Equaliser comprising a first filter for adapting filter coefficients and a second filter for equalising data using the adapted coefficients
US7792184B2 (en) Apparatus and method for determining coefficient of an equalizer
WO2002080379A2 (en) Adaptive chip equalizers for synchronous ds-cdma system with pilot sequences
WO2008115898A2 (en) Frequency domain equalization for time varying channels
WO2002005442A3 (en) Estimation of wireless channel impulse response using a preamble
EP2148450A2 (en) Equalization of multiple signals received for soft handoff in wireless communication systems
KR100940134B1 (ko) 타임-버스트 파일럿과 부분 간격 등화기로 시스템내지연을 보상하는 방법 및 장치
CA2039373A1 (en) Digital data communication system with adaptive channel response estimation
EP0996237B1 (en) Timing estimation for GSM bursts based on previously determined average values
US7440524B2 (en) Channel estimation in a wireless transmission system
WO1999056440A1 (en) Channel estimation using a sliding window technique
MX9606008A (es) Sistemas y metodos para comunicacion inalambrica digital utilizando compensacion.
WO1999031837A1 (en) Tdma wireless telephone system with independently tracked demodulation parameters
Hafeez et al. Co-channel interference cancellation for D-AMPS hand set
CA2281400C (en) Iterative estimation of timing in gsm bursts
KR100430136B1 (ko) 제 3 세대 이동 무선전화기 시스템의 레이크 수신기
KR20080091507A (ko) 심볼-레벨 적응 방법, 메모리, 적응 등화기 및 직교 ｃｄｍａ 수신기
Triki et al. Interference cancellation with Bayesian channel models and application to TDOA/IPDL mobile positioning
Hadef Adaptive equalisation for downlink UMTS terrestrial radio access
Hamied et al. A non-iterative algorithm for estimating the impulse response of ISI channels

Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: HUGHES ELECTRONICS CORPORATION