IL144969A0 - Synchronization and cell search method and apparatus for wireless communications - Google Patents

Synchronization and cell search method and apparatus for wireless communications

Info

Publication number
IL144969A0
IL144969A0 IL14496900A IL14496900A IL144969A0 IL 144969 A0 IL144969 A0 IL 144969A0 IL 14496900 A IL14496900 A IL 14496900A IL 14496900 A IL14496900 A IL 14496900A IL 144969 A0 IL144969 A0 IL 144969A0
Authority
IL
Israel
Prior art keywords
synchronization
detection signal
signal
synchronization detection
interference
Prior art date
Application number
IL14496900A
Other languages
English (en)
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of IL144969A0 publication Critical patent/IL144969A0/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7083Cell search, e.g. using a three-step approach
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7107Subtractive interference cancellation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702Intercell-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
IL14496900A 1999-03-17 2000-03-03 Synchronization and cell search method and apparatus for wireless communications IL144969A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/271,074 US6480558B1 (en) 1999-03-17 1999-03-17 Synchronization and cell search methods and apparatus for wireless communications
PCT/US2000/005669 WO2000055992A1 (en) 1999-03-17 2000-03-03 Synchronization and cell search method and apparatus for wireless communications

Publications (1)

Publication Number Publication Date
IL144969A0 true IL144969A0 (en) 2002-06-30

Family

ID=23034091

Family Applications (2)

Application Number Title Priority Date Filing Date
IL14496900A IL144969A0 (en) 1999-03-17 2000-03-03 Synchronization and cell search method and apparatus for wireless communications
IL144969A IL144969A (en) 1999-03-17 2001-08-19 Synchronization and cell and device search method for wireless communication

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL144969A IL144969A (en) 1999-03-17 2001-08-19 Synchronization and cell and device search method for wireless communication

Country Status (13)

Country Link
US (1) US6480558B1 (cg-RX-API-DMAC7.html)
EP (1) EP1163745B1 (cg-RX-API-DMAC7.html)
JP (1) JP2002539711A (cg-RX-API-DMAC7.html)
KR (1) KR100835047B1 (cg-RX-API-DMAC7.html)
CN (1) CN1188966C (cg-RX-API-DMAC7.html)
AT (1) ATE279053T1 (cg-RX-API-DMAC7.html)
AU (1) AU3865700A (cg-RX-API-DMAC7.html)
DE (1) DE60014601T2 (cg-RX-API-DMAC7.html)
HK (1) HK1045031B (cg-RX-API-DMAC7.html)
IL (2) IL144969A0 (cg-RX-API-DMAC7.html)
MY (1) MY125408A (cg-RX-API-DMAC7.html)
PL (1) PL196542B1 (cg-RX-API-DMAC7.html)
WO (1) WO2000055992A1 (cg-RX-API-DMAC7.html)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100287896B1 (ko) * 1999-02-06 2001-04-16 서평원 이동 통신 시스템에서 셀 탐색 방법
US6831929B1 (en) * 1999-03-22 2004-12-14 Texas Instruments Incorporated Multistage PN code aquisition circuit and method
KR100421142B1 (ko) * 1999-04-28 2004-03-04 삼성전자주식회사 이동통신시스템의 셀탐색 장치 및 방법
AU756683B2 (en) * 1999-04-29 2003-01-23 Samsung Electronics Co., Ltd. Appararus and method for synchronizing channels in a W-CDMA communication system
US6930995B1 (en) * 1999-06-23 2005-08-16 Cingular Wireless Ii, Llc Apparatus and method for synchronization in a multiple-carrier communication system by observing a plurality of synchronization indicators
US6834046B1 (en) * 1999-10-05 2004-12-21 Texas Instruments Incorporated Acquisition of an unevenly spaced synchronization channel in a wireless communication system
US6665288B1 (en) * 1999-11-08 2003-12-16 Ericsson Inc. Method and apparatus for reducing synchronization code interference in CDMA communications systems
US6711224B1 (en) * 2000-03-27 2004-03-23 Lucent Technologies Inc. Timing acquisition algorithm for an adaptive antenna array
US6801567B1 (en) * 2000-03-30 2004-10-05 Texas Instruments Incorporated Frequency bin method of initial carrier frequency acquisition
CA2553935C (en) * 2000-04-07 2010-06-01 Interdigital Technology Corporation Base station synchronization for wireless communication systems
US7139262B1 (en) * 2000-05-18 2006-11-21 Bbn Technologies Corp. Systems and methods for creating wireless small world networks
DK1307979T3 (da) * 2000-08-04 2004-11-22 Interdigital Tech Corp Cellesögningsfremgangsmåde og apparat i et TDMA-CDMA kommunikationssystem
US20030012270A1 (en) * 2000-10-06 2003-01-16 Changming Zhou Receiver
US6931030B1 (en) * 2000-11-30 2005-08-16 Arraycomm, Inc. Training sequence with a random delay for a radio communications system
JP3510589B2 (ja) * 2000-12-15 2004-03-29 Necエレクトロニクス株式会社 セルサーチ方法およびセルサーチ装置
US7012977B2 (en) * 2000-12-29 2006-03-14 Telefonaktiebolaget Lm Ericsson (Publ) System, method and apparatus for wireless channel parameter estimation in spread spectrum communication systems
DE10102709B4 (de) * 2001-01-22 2014-02-06 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Synchronisation auf eine Pilotsequenz eines CDMA-Signals
US6826244B2 (en) 2001-02-27 2004-11-30 Interdigital Technology Corporation Initial cell search algorithm for 3G FDD wireless communication systems
GB2374252A (en) * 2001-04-04 2002-10-09 Ubinetics Ltd Identification of neighbouring cell scrambling codes
US6728203B2 (en) * 2001-05-18 2004-04-27 Telefonaktiebolaget L.M. Ericsson Systems and methods for selecting a cell in a communications network
EP1826933A3 (en) * 2001-06-22 2007-09-05 Interdigital Technology Corporation Apparatus and method for performing initial cell search in a wireless communications system
US6894995B2 (en) * 2001-06-22 2005-05-17 Interdigital Technology Corporation Apparatus and method for performing initial cell search in wireless communication systems
US6744747B2 (en) * 2001-08-22 2004-06-01 Qualcomm, Incorporated Method & apparatus for W-CDMA handoff searching
US6768768B2 (en) * 2001-09-19 2004-07-27 Qualcomm Incorporated Method and apparatus for step two W-CDMA searching
EP1313336B1 (en) * 2001-10-10 2005-12-28 Samsung Electronics Co., Ltd. Cell search method in discontinuous reception mode in a mobile communication system
US7548506B2 (en) * 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
US7756085B2 (en) * 2001-11-20 2010-07-13 Qualcomm Incorporated Steps one and three W-CDMA and multi-mode searching
US7065064B2 (en) * 2001-12-20 2006-06-20 Interdigital Technology Corporation Cell search using peak quality factors
CN1192531C (zh) * 2001-12-21 2005-03-09 华为技术有限公司 一种宽带码分多址系统同步的实现方法
US7813311B2 (en) * 2002-02-05 2010-10-12 Interdigital Technology Corporation Method and apparatus for synchronizing base stations
US7453863B2 (en) * 2002-04-04 2008-11-18 Lg Electronics Inc. Cell searching apparatus and method in asynchronous mobile communication system
ATE448490T1 (de) * 2002-06-17 2009-11-15 Cambridge Positioning Sys Ltd Funkortungssystem mit interferenzunterdrückung
AU2003261194A1 (en) * 2002-07-19 2004-02-09 Interdigital Technology Corporation Groupwise successive interference cancellation for block transmission with reception diversity
TWI224740B (en) * 2002-07-31 2004-12-01 Interdigital Tech Corp Start-up automatic frequency control (AFC) method and apparatus
US7643596B2 (en) * 2002-09-09 2010-01-05 Infineon Technologies Ag Method and device for synchronizing a mobile radio receiver with a base station involving parallel verification
CN1682458A (zh) * 2002-09-12 2005-10-12 美商内数位科技公司 以无线传送及接收单元于信元搜寻中减缓干扰
TW578409B (en) * 2002-10-25 2004-03-01 Benq Corp Method and apparatus for synchronizing with base station
JP4303729B2 (ja) * 2003-01-23 2009-07-29 インターデイジタル テクノロジー コーポレーション ワイヤレス通信システムにおける不適切なセルの除外
US7061966B2 (en) * 2003-02-27 2006-06-13 Motorola, Inc. Frame synchronization and scrambling code indentification in wireless communications systems and methods therefor
US7474648B2 (en) * 2003-06-18 2009-01-06 Telefonaktiebolaget L M Ericsson (Publ) Filtering multipath propagation delay values for use in a mobile communications system
US7302278B2 (en) * 2003-07-03 2007-11-27 Rotani, Inc. Method and apparatus for high throughput multiple radio sectorized wireless cell
SE0302233D0 (sv) * 2003-08-18 2003-08-18 Infineon Technologies Ag Sliding window
US7822105B2 (en) 2003-09-02 2010-10-26 Sirf Technology, Inc. Cross-correlation removal of carrier wave jamming signals
KR20070019940A (ko) 2003-09-02 2007-02-16 서프 테크놀러지, 인코포레이티드 위성 위치결정 시스템 수신기에 대한 제어 및 특징들
US7620029B2 (en) * 2003-10-09 2009-11-17 Qualcomm Incorporated Parallel cell ID acquisition in frequency division multiple access systems
US7321749B2 (en) * 2003-10-09 2008-01-22 Qualcomm Incorporated Cell selection techniques for frequency division multiple access systems
WO2005040848A1 (en) * 2003-10-20 2005-05-06 Sirf Technology, Inc. Cross-correlation removal of carrier wave jamming signals
CN100337508C (zh) * 2004-01-12 2007-09-12 大唐移动通信设备有限公司 移动通信系统中搜索下行同步信号位置的方法
WO2005074305A1 (en) * 2004-01-29 2005-08-11 Neocific, Inc. Methods and apparatus for multi-carrier, multi-cell wireless communication networks
CN102064848B (zh) 2004-01-29 2012-07-25 桥扬科技有限公司 用于多小区宽带无线系统中的移动站和基站的方法和装置
KR100804651B1 (ko) 2004-02-13 2008-02-20 포스데이타 주식회사 멀티 캐리어 통신 시스템에서의 적응적 전송 및 피드백방법 및 장치
US8014264B2 (en) 2004-05-01 2011-09-06 Neocific, Inc. Methods and apparatus for communication with time-division duplexing
KR100672090B1 (ko) * 2004-12-31 2007-01-19 영남대학교 산학협력단 엠아이엠오 브이-블라스트 시스템의 에이치에스씨 검출 방법
US7489282B2 (en) * 2005-01-21 2009-02-10 Rotani, Inc. Method and apparatus for an antenna module
US9071344B2 (en) * 2005-08-22 2015-06-30 Qualcomm Incorporated Reverse link interference cancellation
US8611305B2 (en) 2005-08-22 2013-12-17 Qualcomm Incorporated Interference cancellation for wireless communications
WO2007036039A1 (en) * 2005-09-30 2007-04-05 Nortel Networks Limited Initial access channel for scalable wireless mobile communication networks
CN100417048C (zh) * 2005-10-18 2008-09-03 中兴通讯股份有限公司 同步码分多址系统中提高同步检测性能的方法与装置
KR100827064B1 (ko) * 2006-01-18 2008-05-02 삼성전자주식회사 Ofdm 기반 셀룰러 무선통신시스템의 동기 신호 송신 방법 및 장치
WO2007108885A2 (en) 2006-02-28 2007-09-27 Rotani, Inc. Methods and apparatus for overlapping mimo antenna physical sectors
US8031745B2 (en) * 2006-04-20 2011-10-04 Texas Instruments Incorporated Downlink synchronization channel and methods for cellular systems
US7738416B2 (en) 2006-04-28 2010-06-15 Research In Motion Limited Data burst communication techniques for mobile communication devices operating in packet data sessions
EP2044720B1 (en) 2006-07-25 2015-10-21 Electronics and Telecommunications Research Institute Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure
EP1895800A1 (en) * 2006-08-31 2008-03-05 France Télécom Determination of a list of preferred mobile access networks
GB2458418B (en) * 2006-12-19 2011-08-03 Lg Electronics Inc Sequence generating method for efficient detection and method for transmitting and receiving signals using the same
CN103763297B (zh) * 2006-12-19 2017-04-12 Lg电子株式会社 发送同步信号的方法和基站、接收同步信号的方法和终端
DK2145420T3 (da) * 2007-05-17 2013-01-07 Lg Electronics Inc Fremgangsmåde til at sende synkroniseringssignal i trådløst kommunikationssystem
KR100938756B1 (ko) * 2007-07-06 2010-01-26 엘지전자 주식회사 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법
RU2430473C1 (ru) * 2007-07-06 2011-09-27 Эл Джи Электроникс Инк. Способ осуществления поиска ячейки в беспроводной системе связи
US8169992B2 (en) 2007-08-08 2012-05-01 Telefonaktiebolaget Lm Ericsson (Publ) Uplink scrambling during random access
JP5106969B2 (ja) * 2007-10-01 2012-12-26 株式会社エヌ・ティ・ティ・ドコモ ユーザ装置及びセルサーチ方法
US9119132B2 (en) * 2007-10-10 2015-08-25 Qualcomm Incorporated Efficient system identification schemes for communication systems
US20090203320A1 (en) * 2008-02-07 2009-08-13 Qualcomm Incorporated Asynchronous interference management based on timeslot overlap
US9094986B2 (en) * 2008-02-07 2015-07-28 Qualcomm, Incorporated Synchronous and asynchronous interference management
US8483620B2 (en) * 2008-02-07 2013-07-09 Qualcomm Incorporated Asynchronous interference management
US20100046660A1 (en) * 2008-05-13 2010-02-25 Qualcomm Incorporated Interference cancellation under non-stationary conditions
US8995417B2 (en) 2008-06-09 2015-03-31 Qualcomm Incorporated Increasing capacity in wireless communication
US8565775B2 (en) 2008-06-25 2013-10-22 Qualcomm Incorporated Methods and apparatus for common channel cancellation in wireless communications
US20100085913A1 (en) * 2008-07-02 2010-04-08 Qualcomm Incorporated System acquisition with interference cancellation in the presence of femtocells
US9277487B2 (en) * 2008-08-01 2016-03-01 Qualcomm Incorporated Cell detection with interference cancellation
US9237515B2 (en) * 2008-08-01 2016-01-12 Qualcomm Incorporated Successive detection and cancellation for cell pilot detection
US8509293B2 (en) * 2008-08-19 2013-08-13 Qualcomm Incorporated Semi-coherent timing propagation for GERAN multislot configurations
US8503591B2 (en) 2008-08-19 2013-08-06 Qualcomm Incorporated Enhanced geran receiver using channel input beamforming
US8107443B2 (en) * 2009-02-10 2012-01-31 Mediatek Inc. Method of performing cell search for a wireless communications system
JP5178580B2 (ja) * 2009-02-27 2013-04-10 富士通株式会社 移動局、セルサーチ方法
US9160426B2 (en) * 2009-04-24 2015-10-13 Electronics And Telecommunications Research Institute Cooperative communication method in cellular wireless communication system and terminal for performing the method
US9160577B2 (en) * 2009-04-30 2015-10-13 Qualcomm Incorporated Hybrid SAIC receiver
US8787509B2 (en) 2009-06-04 2014-07-22 Qualcomm Incorporated Iterative interference cancellation receiver
US10090956B2 (en) 2009-06-16 2018-10-02 Qualcomm Incorporated Mechanisms for information exchange across cells to facilitate reception in a heterogeneous network
US8831149B2 (en) 2009-09-03 2014-09-09 Qualcomm Incorporated Symbol estimation methods and apparatuses
US8619928B2 (en) * 2009-09-03 2013-12-31 Qualcomm Incorporated Multi-stage interference suppression
US8938268B2 (en) 2009-11-24 2015-01-20 Qualcomm Incorporated Method and apparatus for facilitating a layered cell search for Long Term Evolution systems
WO2011063568A1 (en) 2009-11-27 2011-06-03 Qualcomm Incorporated Increasing capacity in wireless communications
US9673837B2 (en) 2009-11-27 2017-06-06 Qualcomm Incorporated Increasing capacity in wireless communications
US8515440B2 (en) * 2010-02-19 2013-08-20 Qualcomm Incorporated Computation of channel state feedback in systems using common reference signal interference cancelation
US8942223B2 (en) 2010-04-08 2015-01-27 Qualcomm Incorporated Interference cancelation using edge signals for synchronization signal detection
KR20120042138A (ko) * 2010-10-22 2012-05-03 한국전자통신연구원 이동통신 시스템에서의 셀 탐색 방법
KR101443191B1 (ko) * 2010-11-17 2014-09-25 한국전자통신연구원 이동 단말의 셀 탐색기 및 그것의 주변 셀 탐색 방법
US8767708B2 (en) 2010-12-30 2014-07-01 Motorola Mobility Llc Methods for cell search in synchronous interference limited channels
US8805271B2 (en) * 2011-09-21 2014-08-12 Telefonaktiebolaget L M Ericsson (Publ) System and method for configuring a repeater
WO2013075298A1 (zh) * 2011-11-23 2013-05-30 中兴通讯股份有限公司 一种小区搜索干扰消除的方法和装置
US9066257B2 (en) 2012-04-12 2015-06-23 Intel Mobile Communications GmbH Correlation based cell search and measurement for LTE and LTE-A
US8954032B1 (en) * 2012-08-21 2015-02-10 Sprint Communications Company L.P. Creating accurate billing records in a carrier-aggregation network
EP2965452B1 (en) 2013-03-06 2018-08-08 Telefonaktiebolaget LM Ericsson (publ) Channel estimation for interference cancellation
US9237513B2 (en) 2014-06-13 2016-01-12 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Method for performing a cell search in multiple antenna wireless systems
WO2017038741A1 (ja) * 2015-09-01 2017-03-09 株式会社Nttドコモ ユーザ端末、無線基地局及び無線通信方法
WO2018016710A1 (ko) * 2016-07-21 2018-01-25 엘지전자 주식회사 Fdr 모드로 동작하는 상황에서 자기간섭 신호를 제거하기 위한 방법 및 이를 위한 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2802870B2 (ja) * 1993-03-10 1998-09-24 エヌ・ティ・ティ移動通信網株式会社 符号分割多重移動通信機及び符号分割多重移動通信のセル選択方法
US5822359A (en) 1994-10-17 1998-10-13 Motorola, Inc. Coherent random access channel in a spread-spectrum communication system and method
US5568473A (en) 1994-12-08 1996-10-22 Comsat Corporation Method and apparatus for simple and efficient interference cancellation for chip synchronized CDMA
JPH09307951A (ja) 1996-03-15 1997-11-28 Matsushita Electric Ind Co Ltd スペクトル拡散通信装置
US6067292A (en) 1996-08-20 2000-05-23 Lucent Technologies Inc Pilot interference cancellation for a coherent wireless code division multiple access receiver

Also Published As

Publication number Publication date
US6480558B1 (en) 2002-11-12
ATE279053T1 (de) 2004-10-15
CN1343406A (zh) 2002-04-03
DE60014601T2 (de) 2006-03-09
EP1163745B1 (en) 2004-10-06
HK1045031B (zh) 2005-09-30
AU3865700A (en) 2000-10-04
WO2000055992A1 (en) 2000-09-21
JP2002539711A (ja) 2002-11-19
KR20010112338A (ko) 2001-12-20
IL144969A (en) 2006-08-20
CN1188966C (zh) 2005-02-09
HK1045031A1 (en) 2002-11-08
PL350861A1 (en) 2003-02-10
EP1163745A1 (en) 2001-12-19
PL196542B1 (pl) 2008-01-31
MY125408A (en) 2006-07-31
DE60014601D1 (de) 2004-11-11
KR100835047B1 (ko) 2008-06-03

Similar Documents

Publication Publication Date Title
PL350861A1 (en) Synchronization and cell search method and apparatus for wireless communications
BR0012541A (pt) Cancelamento de interferência de múltiplo acesso cdma utilizando estimativa de sinal
DE602004019644D1 (de) Erkennung und reduktion periodischer störsignale in gps-empfängern und verfahren dafür
EP0825742A3 (en) Method and apparatus for receiving and synchronising a multicarrier signal
WO2000044117A3 (en) Multi-stage cdma synchronization with parallel execution
MX2010001201A (es) Metodo y aparato para determinar la sincronizacion en un sistema de comunicaciones inalambricas.
EP1184995A3 (en) Cell search method and apparatus for mobile station in mobile communication system
EP1071251A3 (en) Synchronisation in multicarrier receivers
ATE311705T1 (de) System und verfahren zur erreichung von synchronisation mit zwei detektionsschwellen
TW200507503A (en) Multiple antenna apparatus and method to provide interference detection and cancellation
FI982857A7 (fi) Vastaanottomenetelmä ja vastaanotin
AU5816299A (en) User terminal parallel searcher
GB0206766D0 (en) Method of, and apparatus for, determining position
DE60238349D1 (de) Verfahren und vorrichtung zur durchführung einer signalerkennung und -zuweisung in einem drahtlosen kommunikationssystem
EP0952750A3 (en) Channel search scheme for receivers in CDMA mobile communication systems
EP1215827A3 (en) Cell search method to substract autocorrelation patterns from a correlation value profile
EP1517454A3 (en) Apparatus and method for searching for cell and multi-path in mobile communication system
DE69835816D1 (de) Verfahren und Vorrichtung zum Empfang
AU2003261115A1 (en) Method and apparatus for detecting jamming signa in a dsss systemusing phase transition counting
GB9929328D0 (en) Data processing
ATE427588T1 (de) Verfahren und vorrichtung zum wavelet- rauschunterdrucken
EP1850512A3 (en) Synchronization establishing method of mobile station in mobile communication system
ATE327617T1 (de) Kollisionsbearbeitungsschema für ein diskretes mehrtondatenkommunikationsnetz
AU4339100A (en) Method and apparatus for successive cancellation using multiple signal timings
TW200718066A (en) Receiving method and receiving apparatus, and communication system utilizing the same

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed