NO20075462L - Fremgangsmate og apparat for singulaerverdidekomposisjon av en kanalmatrise - Google Patents
Fremgangsmate og apparat for singulaerverdidekomposisjon av en kanalmatriseInfo
- Publication number
- NO20075462L NO20075462L NO20075462A NO20075462A NO20075462L NO 20075462 L NO20075462 L NO 20075462L NO 20075462 A NO20075462 A NO 20075462A NO 20075462 A NO20075462 A NO 20075462A NO 20075462 L NO20075462 L NO 20075462L
- Authority
- NO
- Norway
- Prior art keywords
- matrix
- matrices
- real
- singular value
- channel matrix
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/16—Matrix or vector computation, e.g. matrix-matrix or matrix-vector multiplication, matrix factorization
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0658—Feedback reduction
- H04B7/0663—Feedback reduction using vector or matrix manipulations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
-
- 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
- H04L25/0204—Channel estimation of multiple channels
-
- 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
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0248—Eigen-space methods
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Optimization (AREA)
- Data Mining & Analysis (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Power Engineering (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Fremgangsmåte og apparat for å dekomponere en kanalmatrise i en trådløs kommunikasjon er fremlagt. En kanalmatrise H blir generert for kanaler mellom senderantenner og mottakerantenner. En Hermitian matrise A=H H H eller A=HH H blir opprettet. En Jacobiprosess er cyklisk utført på matrisen A for å finne Q og DA matriser slik at A=QDAQH. Da er en diagonalmatrise funnet ved singulære verdidekomposisjon (SVD) på A matrisen. I hver Jacobitransformasjon vil realdeldiagonalisering bli utført for å gjøre annihilasjon av realdeler til utenfor-diagonalelementer i matrisen og imaginærdeldiagonallsering blir utført for å gjøre annihilasjon av imaginærdeler til utenfor-diagonalelementer i matrisen etter realdeldiagonaliseringen. U, V og DH matrisene til H matrisen blir så beregnet fra Q og DA matrisene. DH er en diagonalmatrise innbefattende singulærverdier til H matrisen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66732605P | 2005-04-01 | 2005-04-01 | |
US11/392,025 US7602855B2 (en) | 2005-04-01 | 2006-03-29 | Method and apparatus for singular value decomposition of a channel matrix |
PCT/US2006/011636 WO2006107700A2 (en) | 2005-04-01 | 2006-03-30 | Method and apparatus for singular value decomposition of a channel matrix |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20075462L true NO20075462L (no) | 2007-12-10 |
Family
ID=37073954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20075462A NO20075462L (no) | 2005-04-01 | 2007-10-29 | Fremgangsmate og apparat for singulaerverdidekomposisjon av en kanalmatrise |
Country Status (9)
Country | Link |
---|---|
US (3) | US7602855B2 (no) |
EP (1) | EP1869854A4 (no) |
JP (1) | JP2008535400A (no) |
KR (2) | KR100950245B1 (no) |
CN (2) | CN101156403B (no) |
CA (1) | CA2603146A1 (no) |
MX (1) | MX2007012140A (no) |
NO (1) | NO20075462L (no) |
WO (2) | WO2006107700A2 (no) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006107230A1 (en) * | 2005-03-30 | 2006-10-12 | Intel Corporation | Multiple-input multiple-output multicarrier communication system with joint transmitter and receiver adaptive beamforming for enhanced signal-to-noise ratio |
US20060285531A1 (en) * | 2005-06-16 | 2006-12-21 | Howard Steven J | Efficient filter weight computation for a MIMO system |
EP1941647B1 (en) | 2005-10-27 | 2013-06-19 | Qualcomm Incorporated | Precoding for segment sensitive scheduling in wireless communication systems |
US7917176B2 (en) * | 2006-02-14 | 2011-03-29 | Nec Laboratories America, Inc. | Structured codebook and successive beamforming for multiple-antenna systems |
EP1819116B1 (en) * | 2006-02-10 | 2009-07-01 | Telefonaktiebolaget LM Ericsson (publ) | Channel estimator and method for channel estimation |
US7668268B2 (en) * | 2006-05-22 | 2010-02-23 | Nokia Corporation | Lower complexity computation of lattice reduction |
KR101274871B1 (ko) * | 2006-06-14 | 2013-06-17 | 삼성전자주식회사 | 폐 루프 방식의 다중 안테나 시스템에서의 데이터송/수신장치 및 방법 |
KR100992418B1 (ko) * | 2006-07-12 | 2010-11-05 | 삼성전자주식회사 | 다중 안테나 시스템의 송신단에서 간섭을 제거하기 위한장치 및 방법 |
RU2411650C2 (ru) * | 2006-08-07 | 2011-02-10 | Интердиджитал Текнолоджи Корпорейшн | Способ, устройство и система для реализации многопользовательского виртуального множественного входа/множественного выхода |
CN101536389B (zh) * | 2006-11-22 | 2013-01-16 | 富士通株式会社 | Mimo-ofdm通信***和mimo-ofdm通信方法 |
CN102150377B (zh) | 2006-12-01 | 2014-06-25 | 苹果公司 | Mimo解码的天线选择和软解映射 |
KR101065891B1 (ko) * | 2007-04-25 | 2011-09-19 | 엘렉트로비트 시스템 테스트 오와이 | 다중안테나 무선 채널의 시뮬레이션 |
US7899129B2 (en) * | 2007-09-11 | 2011-03-01 | Intel Corporation | Wireless personal area network communication systems, apparatus and methods with fast adaptive beamforming |
US9197470B2 (en) * | 2007-10-05 | 2015-11-24 | Innurvation, Inc. | Data transmission via multi-path channels using orthogonal multi-frequency signals with differential phase shift keying modulation |
EP2099185B1 (en) | 2008-01-29 | 2017-07-12 | Telefonaktiebolaget LM Ericsson (publ) | Channel estimation in a terminal of an OFDM-based, cellular telecommunications system |
JP5122428B2 (ja) * | 2008-02-04 | 2013-01-16 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム、受信装置及び方法 |
GB0803238D0 (en) * | 2008-02-22 | 2008-04-02 | Isis Innovation | Parallel processing |
US8321488B2 (en) * | 2008-11-04 | 2012-11-27 | Mediatek Inc. | Singular value decomposing method and related singular value decomposing device |
KR100983126B1 (ko) * | 2008-12-22 | 2010-09-17 | 성균관대학교산학협력단 | Ofdm 채널 등화 장치 및 그 방법 |
CN101789818A (zh) * | 2009-01-23 | 2010-07-28 | 雷凌科技股份有限公司 | 用于无线通信***中波束形成的***和方法 |
EP2234315B1 (en) * | 2009-03-27 | 2018-02-14 | Sony Corporation | Division of bit streams to produce spatial paths for multicarrier transmission |
US8880373B2 (en) * | 2009-11-04 | 2014-11-04 | Qualcomm Incorporated | Accurate magnetic compass in mobile electronic device |
US8645093B2 (en) * | 2009-11-04 | 2014-02-04 | Qualcomm Incorporated | Calibrating multi-dimensional sensor for offset, sensitivity, and non-orthogonality |
EP2442507B1 (en) * | 2010-10-15 | 2017-02-15 | Sequans Communications | Channel estimation method using an improved Expectation Maximization (EM-)Algorithm |
US8798551B2 (en) * | 2011-01-07 | 2014-08-05 | Zte (Usa) Inc. | Method and system for spatial CSI feedback for coordinated multi-point processing (CoMP) |
JP6019503B2 (ja) | 2011-06-07 | 2016-11-02 | マーベル ワールド トレード リミテッド | ビームフォーミングのための圧縮フィードバックおよびサブキャリア分類のためのシステムおよび方法 |
US9541393B2 (en) | 2011-06-30 | 2017-01-10 | Qualcomm Incorporated | Reducing power consumption or error of digital compass |
CN102882579B (zh) * | 2012-09-24 | 2015-01-28 | 东南大学 | 一种用于多天线***的并行矩阵求逆方法 |
CN103837871B (zh) * | 2012-11-23 | 2016-03-02 | 中国科学院声学研究所 | 一种逆波束形成方法及*** |
US9001924B1 (en) * | 2013-02-01 | 2015-04-07 | Xilinx, Inc. | Matrix inversion |
US9325552B2 (en) * | 2013-09-13 | 2016-04-26 | Qualcomm Incorporated | Extended duration cyclic prefix with low overhead for LTE broadcast |
CN103560986B (zh) * | 2013-11-08 | 2016-09-28 | 武汉邮电科学研究院 | 基于mimo-ofdm调制的可见光通信***及信道估计方法 |
CN104980206B (zh) * | 2014-04-11 | 2018-06-15 | 普天信息技术有限公司 | 一种波束赋形方法 |
US9379791B2 (en) | 2014-08-01 | 2016-06-28 | Qualcomm Incorporated | Multiple input multiple output (MIMO) communication systems and methods for chip to chip and intrachip communication |
US9319113B2 (en) | 2014-09-19 | 2016-04-19 | Qualcomm Incorporated | Simplified multiple input multiple output (MIMO) communication schemes for interchip and intrachip communications |
CN105871503B (zh) * | 2015-01-22 | 2019-03-12 | 华邦电子股份有限公司 | 多输入多输出无线通信***及其通道分解方法 |
US10644771B2 (en) * | 2018-06-08 | 2020-05-05 | University Of South Florida | Using artificial signals to maximize capacity and secrecy of multiple-input multiple-output (MIMO) communication |
US10516452B1 (en) * | 2018-06-08 | 2019-12-24 | University Of South Florida | Using artificial signals to maximize capacity and secrecy of multiple-input multiple-output (MIMO) communication |
KR102195907B1 (ko) * | 2019-04-30 | 2020-12-28 | 연세대학교 산학협력단 | 특이값 분해 기반 필터 직교 주파수 분할 다중화 시스템 및 이의 송수신 방법 |
US11256780B1 (en) * | 2020-05-20 | 2022-02-22 | Marvell Asia Pte, Ltd. | Methods and apparatus for fast eigenvalue decomposition of Hermitian matrices |
KR102287791B1 (ko) | 2021-04-30 | 2021-08-09 | 세종대학교산학협력단 | 대용량 하향링크 MIMO 시스템을 위한 향상된 Jacobi 프리코더 |
JP2023037446A (ja) * | 2021-09-03 | 2023-03-15 | 日本電気株式会社 | 無線受信装置及びその方法 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5542101A (en) * | 1993-11-19 | 1996-07-30 | At&T Corp. | Method and apparatus for receiving signals in a multi-path environment |
US6058105A (en) * | 1997-09-26 | 2000-05-02 | Lucent Technologies Inc. | Multiple antenna communication system and method thereof |
US6748098B1 (en) * | 1998-04-14 | 2004-06-08 | General Electric Company | Algebraic reconstruction of images from non-equidistant data |
US6865237B1 (en) * | 2000-02-22 | 2005-03-08 | Nokia Mobile Phones Limited | Method and system for digital signal transmission |
JP4880177B2 (ja) * | 2000-07-12 | 2012-02-22 | クゥアルコム・インコーポレイテッド | Ofdmシステムのためのリアルタイムサービスと非リアルタイムサービスの多重化 |
GB2371191B (en) * | 2001-01-11 | 2005-06-15 | Mitel Corp | Double-talk and path change detection using a matrix of correlation coefficients |
EP1355467B8 (en) * | 2002-04-16 | 2005-12-07 | Sony Deutschland Gmbh | Orthogonal frequency division multiplexing (OFDM) system with channel transfer function prediction |
US7522673B2 (en) * | 2002-04-22 | 2009-04-21 | Regents Of The University Of Minnesota | Space-time coding using estimated channel information |
US7327800B2 (en) * | 2002-05-24 | 2008-02-05 | Vecima Networks Inc. | System and method for data detection in wireless communication systems |
GB2392065B (en) * | 2002-08-15 | 2004-12-29 | Toshiba Res Europ Ltd | Signal decoding methods and apparatus |
ATE421809T1 (de) * | 2002-08-22 | 2009-02-15 | Imec Inter Uni Micro Electr | Verfahren zur mimo-übertragung für mehrere benutzer und entsprechende vorrichtungen |
US7280625B2 (en) * | 2002-12-11 | 2007-10-09 | Qualcomm Incorporated | Derivation of eigenvectors for spatial processing in MIMO communication systems |
CN1300962C (zh) * | 2002-12-31 | 2007-02-14 | 上海贝尔阿尔卡特股份有限公司 | 正交频分复用***中均衡快衰落信道的方法及装置 |
US6927728B2 (en) * | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
US20040192218A1 (en) * | 2003-03-31 | 2004-09-30 | Oprea Alexandru M. | System and method for channel data transmission in wireless communication systems |
JP4543737B2 (ja) * | 2004-05-10 | 2010-09-15 | ソニー株式会社 | 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム |
TWI274166B (en) * | 2004-06-18 | 2007-02-21 | Unitest Inc | Semiconductor test apparatus for simultaneously testing plurality of semiconductor devices |
ATE527794T1 (de) * | 2004-08-12 | 2011-10-15 | Interdigital Tech Corp | Verfahren und vorrichtung zur implementierung von raum-frequenz-blockcodierung in einem drahtlosen orthogonalen frequenzmultiplex- kommunikationssystem |
US7564914B2 (en) * | 2004-12-14 | 2009-07-21 | Broadcom Corporation | Method and system for frame formats for MIMO channel measurement exchange |
US7711762B2 (en) * | 2004-11-15 | 2010-05-04 | Qualcomm Incorporated | Efficient computation for eigenvalue decomposition and singular value decomposition of matrices |
WO2006053340A2 (en) | 2004-11-15 | 2006-05-18 | Qualcomm Incorporated | Eigenvalue decomposition and singular value decomposition of matrices using jacobi rotation |
US7895254B2 (en) * | 2004-11-15 | 2011-02-22 | Qualcomm Incorporated | Eigenvalue decomposition and singular value decomposition of matrices using Jacobi rotation |
US7492815B2 (en) * | 2004-11-24 | 2009-02-17 | Nokia Corporation | Reduced parallel and pipelined high-order MIMO LMMSE receiver architecture |
US20060153283A1 (en) * | 2005-01-13 | 2006-07-13 | Scharf Louis L | Interference cancellation in adjoint operators for communication receivers |
US7551547B2 (en) * | 2005-01-28 | 2009-06-23 | At&T Intellectual Property I, L.P. | Delay restricted channel estimation for multi-carrier systems |
US20060285531A1 (en) * | 2005-06-16 | 2006-12-21 | Howard Steven J | Efficient filter weight computation for a MIMO system |
US8588316B2 (en) * | 2008-12-24 | 2013-11-19 | Samsung Electronics Co., Ltd. | QR decomposition detection device and method supporting interference whitening |
US8175189B2 (en) * | 2009-03-11 | 2012-05-08 | Hitachi, Ltd. | Fast generalized decision feedback equalizer precoder implementation for multi-user multiple-input multiple-output wireless transmission systems |
-
2006
- 2006-03-29 US US11/392,025 patent/US7602855B2/en not_active Expired - Fee Related
- 2006-03-30 JP JP2008504356A patent/JP2008535400A/ja active Pending
- 2006-03-30 CN CN200680011322.XA patent/CN101156403B/zh not_active Expired - Fee Related
- 2006-03-30 WO PCT/US2006/011636 patent/WO2006107700A2/en active Application Filing
- 2006-03-30 CA CA002603146A patent/CA2603146A1/en not_active Abandoned
- 2006-03-30 CN CN2013100922601A patent/CN103209015A/zh active Pending
- 2006-03-30 KR KR1020077024685A patent/KR100950245B1/ko not_active IP Right Cessation
- 2006-03-30 KR KR1020077024926A patent/KR20070108419A/ko not_active Application Discontinuation
- 2006-03-30 MX MX2007012140A patent/MX2007012140A/es not_active Application Discontinuation
- 2006-03-30 EP EP06740039A patent/EP1869854A4/en not_active Ceased
- 2006-03-31 WO PCT/US2006/012337 patent/WO2006107888A2/en active Application Filing
-
2007
- 2007-10-29 NO NO20075462A patent/NO20075462L/no not_active Application Discontinuation
-
2009
- 2009-09-24 US US12/566,194 patent/US8249186B2/en not_active Expired - Fee Related
-
2012
- 2012-08-13 US US13/584,338 patent/US20120307945A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2006107700A2 (en) | 2006-10-12 |
US20120307945A1 (en) | 2012-12-06 |
CN101156403B (zh) | 2013-04-24 |
KR20070108419A (ko) | 2007-11-09 |
CA2603146A1 (en) | 2006-10-12 |
CN103209015A (zh) | 2013-07-17 |
JP2008535400A (ja) | 2008-08-28 |
WO2006107888A3 (en) | 2007-06-14 |
WO2006107700A3 (en) | 2007-05-31 |
KR100950245B1 (ko) | 2010-03-31 |
KR20070122511A (ko) | 2007-12-31 |
EP1869854A4 (en) | 2008-06-18 |
CN101156403A (zh) | 2008-04-02 |
EP1869854A2 (en) | 2007-12-26 |
US8249186B2 (en) | 2012-08-21 |
US20100014617A1 (en) | 2010-01-21 |
US7602855B2 (en) | 2009-10-13 |
WO2006107888A2 (en) | 2006-10-12 |
US20060245513A1 (en) | 2006-11-02 |
MX2007012140A (es) | 2008-03-12 |
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