NO322059B1 - Fremgangsmate og innretning for a danne antennestralemonster med brede nullpunkt - Google Patents
Fremgangsmate og innretning for a danne antennestralemonster med brede nullpunkt Download PDFInfo
- Publication number
- NO322059B1 NO322059B1 NO19993268A NO993268A NO322059B1 NO 322059 B1 NO322059 B1 NO 322059B1 NO 19993268 A NO19993268 A NO 19993268A NO 993268 A NO993268 A NO 993268A NO 322059 B1 NO322059 B1 NO 322059B1
- Authority
- NO
- Norway
- Prior art keywords
- angles
- signals
- arrival
- signal
- unwanted
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 75
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- 230000005855 radiation Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 description 59
- 238000013461 design Methods 0.000 description 39
- 230000002452 interceptive effect Effects 0.000 description 19
- 239000013598 vector Substances 0.000 description 17
- 230000005540 biological transmission Effects 0.000 description 13
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
- H01Q3/2611—Means for null steering; Adaptive interference nulling
-
- 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
- H04B7/204—Multiple access
- H04B7/2041—Spot beam multiple access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radio Relay Systems (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/963,485 US6061023A (en) | 1997-11-03 | 1997-11-03 | Method and apparatus for producing wide null antenna patterns |
| PCT/US1998/023366 WO1999023718A1 (en) | 1997-11-03 | 1998-11-03 | Antenna beam patterns having wide nulls |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO993268D0 NO993268D0 (no) | 1999-07-01 |
| NO993268L NO993268L (no) | 1999-08-31 |
| NO322059B1 true NO322059B1 (no) | 2006-08-07 |
Family
ID=25507309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19993268A NO322059B1 (no) | 1997-11-03 | 1999-07-01 | Fremgangsmate og innretning for a danne antennestralemonster med brede nullpunkt |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6061023A (de) |
| EP (1) | EP0956612B1 (de) |
| JP (1) | JP2001507917A (de) |
| KR (1) | KR100608468B1 (de) |
| CN (1) | CN1265502C (de) |
| AU (1) | AU1376499A (de) |
| CA (1) | CA2276524C (de) |
| IL (1) | IL130795A (de) |
| NO (1) | NO322059B1 (de) |
| WO (1) | WO1999023718A1 (de) |
Families Citing this family (90)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339646B1 (en) * | 1998-11-03 | 2002-01-15 | Telefonaktiebolaget Lm Ericsson | Slotted mode code usage in a cellular communications system |
| US7164704B1 (en) * | 1999-12-09 | 2007-01-16 | Texas Instruments Incorporated | Beam forming for transmit using bluetooth modified hopping sequences (BFTBMH) |
| DE60135070D1 (de) * | 2000-03-09 | 2008-09-11 | Motorola Inc | Verfahren und vorrichtung zur gruppenantennenstrahlformung |
| US7164725B2 (en) | 2000-03-10 | 2007-01-16 | Motorola, Inc. | Method and apparatus for antenna array beamforming |
| SG96568A1 (en) * | 2000-09-21 | 2003-06-16 | Univ Singapore | Beam synthesis method for downlink beamforming in fdd wireless communication system. |
| US6564036B1 (en) * | 2000-09-29 | 2003-05-13 | Arraycomm, Inc. | Mode switching in adaptive array communications systems |
| US6738018B2 (en) * | 2002-05-01 | 2004-05-18 | Harris Corporation | All digital phased array using space/time cascaded processing |
| ES2339007T3 (es) * | 2002-10-25 | 2010-05-14 | The Directv Group, Inc. | Configuraciones de enlaces de conexion para soportar una modulacion por capas para señales digitales. |
| US7359504B1 (en) | 2002-12-03 | 2008-04-15 | Plantronics, Inc. | Method and apparatus for reducing echo and noise |
| US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
| US7336746B2 (en) * | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
| US8169889B2 (en) | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
| US11394436B2 (en) | 2004-04-02 | 2022-07-19 | Rearden, Llc | System and method for distributed antenna wireless communications |
| US10749582B2 (en) | 2004-04-02 | 2020-08-18 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
| US10985811B2 (en) | 2004-04-02 | 2021-04-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
| US8542763B2 (en) * | 2004-04-02 | 2013-09-24 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
| US8571086B2 (en) * | 2004-04-02 | 2013-10-29 | Rearden, Llc | System and method for DIDO precoding interpolation in multicarrier systems |
| US10425134B2 (en) | 2004-04-02 | 2019-09-24 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
| US11451275B2 (en) | 2004-04-02 | 2022-09-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
| US9312929B2 (en) | 2004-04-02 | 2016-04-12 | Rearden, Llc | System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS) |
| US8170081B2 (en) | 2004-04-02 | 2012-05-01 | Rearden, LLC. | System and method for adjusting DIDO interference cancellation based on signal strength measurements |
| US8654815B1 (en) | 2004-04-02 | 2014-02-18 | Rearden, Llc | System and method for distributed antenna wireless communications |
| US9819403B2 (en) * | 2004-04-02 | 2017-11-14 | Rearden, Llc | System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client |
| US9826537B2 (en) * | 2004-04-02 | 2017-11-21 | Rearden, Llc | System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters |
| US10277290B2 (en) * | 2004-04-02 | 2019-04-30 | Rearden, Llc | Systems and methods to exploit areas of coherence in wireless systems |
| US10187133B2 (en) * | 2004-04-02 | 2019-01-22 | Rearden, Llc | System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network |
| US11309943B2 (en) | 2004-04-02 | 2022-04-19 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
| US10200094B2 (en) * | 2004-04-02 | 2019-02-05 | Rearden, Llc | Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems |
| US10886979B2 (en) * | 2004-04-02 | 2021-01-05 | Rearden, Llc | System and method for link adaptation in DIDO multicarrier systems |
| US20050238111A1 (en) * | 2004-04-09 | 2005-10-27 | Wallace Mark S | Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system |
| US8285226B2 (en) | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
| US8923785B2 (en) * | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
| US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
| US9685997B2 (en) | 2007-08-20 | 2017-06-20 | Rearden, Llc | Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems |
| US7970345B2 (en) * | 2005-06-22 | 2011-06-28 | Atc Technologies, Llc | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
| US20070021085A1 (en) * | 2005-07-25 | 2007-01-25 | Ibiquity Digital Corporation | Adaptive Beamforming For AM Radio |
| US7570210B1 (en) | 2005-12-12 | 2009-08-04 | Marvell International Ltd. | Steering matrix feedback for beamforming |
| CN101361291A (zh) | 2005-12-16 | 2009-02-04 | 诺基亚公司 | 一种中继 |
| US8791389B2 (en) | 2006-01-25 | 2014-07-29 | Lincoln Global, Inc. | Electric arc welding wire |
| US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
| US8290089B2 (en) * | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
| US9435893B2 (en) | 2007-05-21 | 2016-09-06 | Spatial Digital Systems, Inc. | Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver |
| US7429949B1 (en) * | 2007-08-03 | 2008-09-30 | Tenxc Wireless Inc. | Robust beamforming based on nulls broadening and virtual antenna elements |
| US7924223B1 (en) * | 2007-12-06 | 2011-04-12 | Chang Donald C D | Satellite ground terminal incorporating a smart antenna that rejects interference |
| US10490892B2 (en) | 2007-12-06 | 2019-11-26 | Spatial Digital Systems, Inc. | Satellite ground terminal incorporating a smart antenna that rejects interference |
| US8203483B2 (en) * | 2008-03-13 | 2012-06-19 | Cubic Corporation | Digital beamforming antenna and datalink array |
| KR101465695B1 (ko) * | 2008-08-06 | 2014-11-27 | 에스케이텔레콤 주식회사 | 간섭 널링을 이용한 동적 채널 할당 시스템 및 방법 |
| WO2010050269A1 (ja) * | 2008-10-30 | 2010-05-06 | 三菱電機株式会社 | 通信装置および通信システム |
| CN102227933B (zh) * | 2008-11-26 | 2014-05-28 | 日本电气株式会社 | 无线台站装置、无线通信系统和无线通信控制方法 |
| US20110009105A1 (en) * | 2009-07-13 | 2011-01-13 | Jungwoo Lee | Self-organizing networks using directional beam antennas |
| JP5279037B2 (ja) | 2010-04-28 | 2013-09-04 | 日本電気株式会社 | 無線通信装置、無線ネットワークシステム及びそれらに用いるデータリンク構築方法 |
| US9479243B2 (en) * | 2010-09-21 | 2016-10-25 | Donald C. D. Chang | Re-configurable array from distributed apertures on portable devices |
| SG189891A1 (en) * | 2010-10-15 | 2013-06-28 | Searete Llc | Surface scattering antennas |
| RU2017127936A (ru) * | 2011-09-14 | 2019-02-01 | Риарден, Ллк | Системы и способы эксплуатации областей когерентности в беспроводных системах |
| US11050468B2 (en) | 2014-04-16 | 2021-06-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
| US11190947B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for concurrent spectrum usage within actively used spectrum |
| US11189917B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for distributing radioheads |
| US10194346B2 (en) | 2012-11-26 | 2019-01-29 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| US9281979B2 (en) * | 2013-02-26 | 2016-03-08 | Intel Corporation | Millimeter-wave line of sight MIMO communication system for indoor applications |
| US10164698B2 (en) | 2013-03-12 | 2018-12-25 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| US10488535B2 (en) | 2013-03-12 | 2019-11-26 | Rearden, Llc | Apparatus and method for capturing still images and video using diffraction coded imaging techniques |
| US9973246B2 (en) | 2013-03-12 | 2018-05-15 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| US9923657B2 (en) | 2013-03-12 | 2018-03-20 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| US9385435B2 (en) | 2013-03-15 | 2016-07-05 | The Invention Science Fund I, Llc | Surface scattering antenna improvements |
| US10547358B2 (en) | 2013-03-15 | 2020-01-28 | Rearden, Llc | Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications |
| US9088330B2 (en) | 2013-04-24 | 2015-07-21 | Cubic Corporation | Distributed local oscillator generation and synchronization |
| US9923271B2 (en) | 2013-10-21 | 2018-03-20 | Elwha Llc | Antenna system having at least two apertures facilitating reduction of interfering signals |
| US9647345B2 (en) | 2013-10-21 | 2017-05-09 | Elwha Llc | Antenna system facilitating reduction of interfering signals |
| US9154217B1 (en) * | 2013-10-29 | 2015-10-06 | Anokiwave, Inc. | Direct conversion remote satellite communications terminal |
| DE102013223707A1 (de) * | 2013-11-20 | 2015-05-21 | Robert Bosch Gmbh | Einstellbare Abstrahlcharakteristik in Ultraschallsystemen |
| US9935375B2 (en) | 2013-12-10 | 2018-04-03 | Elwha Llc | Surface scattering reflector antenna |
| US20150171512A1 (en) | 2013-12-17 | 2015-06-18 | Elwha Llc | Sub-nyquist holographic aperture antenna configured to define selectable, arbitrary complex electromagnetic fields |
| US9887456B2 (en) | 2014-02-19 | 2018-02-06 | Kymeta Corporation | Dynamic polarization and coupling control from a steerable cylindrically fed holographic antenna |
| US9843103B2 (en) | 2014-03-26 | 2017-12-12 | Elwha Llc | Methods and apparatus for controlling a surface scattering antenna array |
| US9448305B2 (en) | 2014-03-26 | 2016-09-20 | Elwha Llc | Surface scattering antenna array |
| KR102177553B1 (ko) * | 2014-03-27 | 2020-11-11 | 삼성전자주식회사 | 다중 사용자 지원을 위한 빔포밍 방법 및 장치 |
| US11290162B2 (en) | 2014-04-16 | 2022-03-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
| US9882288B2 (en) | 2014-05-02 | 2018-01-30 | The Invention Science Fund I Llc | Slotted surface scattering antennas |
| US9711852B2 (en) | 2014-06-20 | 2017-07-18 | The Invention Science Fund I Llc | Modulation patterns for surface scattering antennas |
| US9853361B2 (en) | 2014-05-02 | 2017-12-26 | The Invention Science Fund I Llc | Surface scattering antennas with lumped elements |
| US10446903B2 (en) | 2014-05-02 | 2019-10-15 | The Invention Science Fund I, Llc | Curved surface scattering antennas |
| WO2017199370A1 (ja) * | 2016-05-18 | 2017-11-23 | 三菱電機株式会社 | 送信局、制御局、受信局、データ伝送システムおよびデータ伝送方法 |
| US10361481B2 (en) | 2016-10-31 | 2019-07-23 | The Invention Science Fund I, Llc | Surface scattering antennas with frequency shifting for mutual coupling mitigation |
| AU2018388483B2 (en) | 2017-12-19 | 2023-03-09 | Smartsky Networks LLC | Interference mitigation based on antenna system phase distribution |
| US10892553B2 (en) | 2018-01-17 | 2021-01-12 | Kymeta Corporation | Broad tunable bandwidth radial line slot antenna |
| SG11202007816UA (en) | 2018-03-09 | 2020-09-29 | Isotropic Systems Ltd | Dynamic interference reduction for antenna beam tracking systems |
| US11330594B1 (en) * | 2020-11-25 | 2022-05-10 | Qualcomm Incorporated | Optimized UE beamforming with null space report |
| WO2023222997A1 (en) * | 2022-05-18 | 2023-11-23 | Focal Point Positioning Limited | Method and apparatus for improving co-channel operation of independent radio systems |
| CN114980032B (zh) * | 2022-06-06 | 2024-07-23 | 厦门大学 | 基于感通一体的v2v波束跟踪方法 |
| WO2024205074A1 (ko) * | 2023-03-30 | 2024-10-03 | 엘지전자 주식회사 | 빔 매니지먼트 방법 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225870A (en) * | 1978-05-10 | 1980-09-30 | The United States Of America As Represented By The Secretary Of The Army | Null steering antenna |
| US4246585A (en) * | 1979-09-07 | 1981-01-20 | The United States Of America As Represented By The Secretary Of The Air Force | Subarray pattern control and null steering for subarray antenna systems |
| US4933680A (en) * | 1988-09-29 | 1990-06-12 | Hughes Aircraft Company | Microstrip antenna system with multiple frequency elements |
| FR2649544B1 (fr) * | 1989-07-04 | 1991-11-29 | Thomson Csf | Systeme d'antenne a faisceaux multiples a modules actifs et formation de faisceaux par le calcul numerique |
| US5343211A (en) * | 1991-01-22 | 1994-08-30 | General Electric Co. | Phased array antenna with wide null |
| US5642122A (en) * | 1991-11-08 | 1997-06-24 | Teledesic Corporation | Spacecraft antennas and beam steering methods for satellite communciation system |
| AU5354294A (en) * | 1992-10-09 | 1994-05-09 | E-Systems Incorporated | Adaptive co-channel interference reduction system for cellular telephone central base stations |
| DE69319689T2 (de) * | 1992-10-28 | 1999-02-25 | Atr Optical And Radio Communications Research Laboratories, Kyoto | Vorrichtung und Verfahren zur Steuerung einer Gruppenantenne mit einer Vielzahl von Antennenelementen |
| US5619503A (en) * | 1994-01-11 | 1997-04-08 | Ericsson Inc. | Cellular/satellite communications system with improved frequency re-use |
| IL110896A0 (en) * | 1994-01-31 | 1994-11-28 | Loral Qualcomm Satellite Serv | Active transmit phases array antenna with amplitude taper |
| EP0700116A3 (de) * | 1994-08-29 | 1998-01-07 | Atr Optical And Radio Communications Research Laboratories | Vorrichtung und Verfahren zur Steuerung einer Gruppenantenne mit einer Vielzahl von Antennenelementen für verbesserte einkommende Strahlverfolgung |
| US5495258A (en) * | 1994-09-01 | 1996-02-27 | Nicholas L. Muhlhauser | Multiple beam antenna system for simultaneously receiving multiple satellite signals |
| US6101399A (en) * | 1995-02-22 | 2000-08-08 | The Board Of Trustees Of The Leland Stanford Jr. University | Adaptive beam forming for transmitter operation in a wireless communication system |
| US5515060A (en) * | 1995-05-11 | 1996-05-07 | Martin Marietta Corp. | Clutter suppression for thinned array with phase only nulling |
| US5579016A (en) * | 1995-09-20 | 1996-11-26 | Trw Inc. | Phased array multiple area nulling antenna architecture |
| US5754138A (en) * | 1996-10-30 | 1998-05-19 | Motorola, Inc. | Method and intelligent digital beam forming system for interference mitigation |
-
1997
- 1997-11-03 US US08/963,485 patent/US6061023A/en not_active Expired - Lifetime
-
1998
- 1998-11-03 CN CNB988022710A patent/CN1265502C/zh not_active Expired - Fee Related
- 1998-11-03 KR KR1019997006049A patent/KR100608468B1/ko not_active IP Right Cessation
- 1998-11-03 JP JP52674599A patent/JP2001507917A/ja not_active Withdrawn
- 1998-11-03 CA CA002276524A patent/CA2276524C/en not_active Expired - Fee Related
- 1998-11-03 AU AU13764/99A patent/AU1376499A/en not_active Abandoned
- 1998-11-03 WO PCT/US1998/023366 patent/WO1999023718A1/en active IP Right Grant
- 1998-11-03 IL IL13079598A patent/IL130795A/en not_active IP Right Cessation
- 1998-11-03 EP EP98957525A patent/EP0956612B1/de not_active Expired - Lifetime
-
1999
- 1999-07-01 NO NO19993268A patent/NO322059B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2276524C (en) | 2007-05-29 |
| US6061023A (en) | 2000-05-09 |
| WO1999023718A1 (en) | 1999-05-14 |
| NO993268D0 (no) | 1999-07-01 |
| CA2276524A1 (en) | 1999-05-14 |
| AU1376499A (en) | 1999-05-24 |
| CN1256803A (zh) | 2000-06-14 |
| CN1265502C (zh) | 2006-07-19 |
| EP0956612A1 (de) | 1999-11-17 |
| IL130795A (en) | 2002-08-14 |
| KR100608468B1 (ko) | 2006-08-09 |
| IL130795A0 (en) | 2001-01-28 |
| JP2001507917A (ja) | 2001-06-12 |
| EP0956612B1 (de) | 2011-08-03 |
| NO993268L (no) | 1999-08-31 |
| KR20000069861A (ko) | 2000-11-25 |
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