KR100938047B1 - 시스템 교정 방법, 위치 탐색 시스템 및 컴퓨터 - Google Patents

시스템 교정 방법, 위치 탐색 시스템 및 컴퓨터 Download PDF

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KR100938047B1
KR100938047B1 KR1020040025779A KR20040025779A KR100938047B1 KR 100938047 B1 KR100938047 B1 KR 100938047B1 KR 1020040025779 A KR1020040025779 A KR 1020040025779A KR 20040025779 A KR20040025779 A KR 20040025779A KR 100938047 B1 KR100938047 B1 KR 100938047B1
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signal characteristics
location
regression
function
calibration
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Korean (ko)
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KR20040092414A (ko
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존씨. 쿠르므
존씨. 플래트
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마이크로소프트 코포레이션
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    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/021—Calibration, monitoring or correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations
    • G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0252—Radio frequency fingerprinting
    • G01S5/02528—Simulating radio frequency fingerprints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/22—Traffic simulation tools or models
    • H04W16/225—Traffic simulation tools or models for indoor or short range network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
KR1020040025779A 2003-04-25 2004-04-14 시스템 교정 방법, 위치 탐색 시스템 및 컴퓨터 Expired - Fee Related KR100938047B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/423,093 2003-04-25
US10/423,093 US6992625B1 (en) 2003-04-25 2003-04-25 Calibration of a device location measurement system that utilizes wireless signal strengths

Publications (2)

Publication Number Publication Date
KR20040092414A KR20040092414A (ko) 2004-11-03
KR100938047B1 true KR100938047B1 (ko) 2010-01-21

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Country Status (5)

Country Link
US (3) US6992625B1 (enExample)
EP (1) EP1471688B1 (enExample)
JP (1) JP4065437B2 (enExample)
KR (1) KR100938047B1 (enExample)
CN (1) CN100523860C (enExample)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992625B1 (en) * 2003-04-25 2006-01-31 Microsoft Corporation Calibration of a device location measurement system that utilizes wireless signal strengths
US7250907B2 (en) * 2003-06-30 2007-07-31 Microsoft Corporation System and methods for determining the location dynamics of a portable computing device
US7346359B2 (en) * 2003-07-31 2008-03-18 Pango Networks, Inc. Method for RF fingerprinting
WO2005062066A2 (en) * 2003-10-22 2005-07-07 Awarepoint Corporation Wireless position location and tracking system
US7209751B2 (en) * 2004-03-30 2007-04-24 Sony Corporation System and method for proximity motion detection in a wireless network
US7317914B2 (en) * 2004-09-24 2008-01-08 Microsoft Corporation Collaboratively locating disconnected clients and rogue access points in a wireless network
US7760654B2 (en) * 2004-09-24 2010-07-20 Microsoft Corporation Using a connected wireless computer as a conduit for a disconnected wireless computer
US7603460B2 (en) 2004-09-24 2009-10-13 Microsoft Corporation Detecting and diagnosing performance problems in a wireless network through neighbor collaboration
US7627537B2 (en) * 2004-10-28 2009-12-01 Intel Corporation Score result reuse for Bayesian network structure learning
US20060094375A1 (en) * 2004-11-03 2006-05-04 Mcginley Robert Portable survey inspection device
CN101091177B (zh) * 2004-12-31 2010-05-26 英特尔公司 贝叶斯网络结构学习并行化的方法、设备及系统
US7275014B1 (en) 2005-02-10 2007-09-25 At&T Corporation Distributed graph layout for sensor node networks
US7403784B2 (en) * 2005-03-10 2008-07-22 Avaya Technology Corp. Method and apparatus for positioning a set of terminals in an indoor wireless environment
US20070129084A1 (en) * 2005-12-05 2007-06-07 Nortel Networks Limited Creating and recognizing user-defined locations using communication terminals
US7579952B2 (en) * 2006-07-31 2009-08-25 Caterpillar Inc. System and method to identify and track RFID tags
KR100775858B1 (ko) * 2006-11-07 2007-11-13 한국전자통신연구원 실내 무선 측위용 환경 분석 시스템 및 그 방법
US7701393B2 (en) * 2006-12-19 2010-04-20 The Boeing Company Radio frequency navigation using frequency response matching
EP2118810B1 (en) 2007-02-05 2012-08-15 Andrew Corporation System and method for optimizing location estimate of mobile unit
TWI353140B (en) 2007-03-14 2011-11-21 Quanta Comp Inc Wireless communication system for automatically ge
US8077205B2 (en) * 2007-06-14 2011-12-13 Sony Corporation Adaptive prediction of calibration parameters for color imaging devices
KR101236910B1 (ko) 2007-10-09 2013-02-25 삼성전자주식회사 근거리 무선 통신을 통하여 다른 디바이스와 관련된 동작을수행하는 방법 및 그 장치
JP5203670B2 (ja) * 2007-10-25 2013-06-05 インターナショナル・ビジネス・マシーンズ・コーポレーション 位置推定システム、方法及びプログラム
US8219116B1 (en) * 2007-11-27 2012-07-10 Google Inc. Wireless base station location estimation
KR100954455B1 (ko) * 2008-01-28 2010-04-27 인하대학교 산학협력단 위치 인식 방법
KR100950941B1 (ko) 2008-02-04 2010-04-01 강릉원주대학교산학협력단 보정 노드를 기반으로 하는 이동 노드의 위치 추정 시스템및 방법
KR101058296B1 (ko) 2008-09-10 2011-08-22 삼성에스디에스 주식회사 모바일 디바이스에 대한 실시간 위치 추적 방법 및 시스템
WO2010048146A1 (en) * 2008-10-20 2010-04-29 Carnegie Mellon University System, method and device for predicting navigational decision-making behavior
TWI376521B (en) * 2008-11-27 2012-11-11 Ind Tech Res Inst Collection and construction of training location data of positioning system and positioning method therefor
FR2944603B1 (fr) * 2009-04-17 2014-07-11 Univ Troyes Technologie Systeme et procede de localisation de cible par un reseau d'emetteurs recepteurs
US20100304762A1 (en) * 2009-05-27 2010-12-02 Bernard Joseph Hall Indoor tracking system
US8350758B1 (en) * 2009-10-01 2013-01-08 Lighthouse Signal Systems LLC Systems and methods for indoor geolocation based on yield of RF signals
US20110102267A1 (en) * 2009-10-30 2011-05-05 Janiszewski Tom J Method and system for determining location information
US8565790B2 (en) 2010-01-22 2013-10-22 Qualcomm Incorporated Methods and apparatuses for determining if access to a region is feasible or infeasible for a user of a mobile device
TWI427313B (zh) * 2010-02-09 2014-02-21 Univ Nat Pingtung Sci & Tech Ｒｆｉｄ標籤定位演算方法
CN103119470B (zh) * 2010-07-21 2015-09-16 韩国贸易信息通信株式会社 进行室内导航的基于位置服务的系统和方法
EP2418513A1 (en) 2010-08-10 2012-02-15 Astrium GmbH Computing of robust and improved signal-in-space accuracy parameters in a regional or global navigation satellite system
JP5166502B2 (ja) * 2010-10-21 2013-03-21 株式会社日立製作所 測位データ管理サーバ及び測位データ管理方法
US8565783B2 (en) * 2010-11-24 2013-10-22 Microsoft Corporation Path progression matching for indoor positioning systems
US8981995B2 (en) 2011-06-03 2015-03-17 Microsoft Technology Licensing, Llc. Low accuracy positional data by detecting improbable samples
US9470529B2 (en) 2011-07-14 2016-10-18 Microsoft Technology Licensing, Llc Activating and deactivating sensors for dead reckoning
US9464903B2 (en) 2011-07-14 2016-10-11 Microsoft Technology Licensing, Llc Crowd sourcing based on dead reckoning
WO2013022440A1 (en) * 2011-08-09 2013-02-14 Research In Motion Limited Harvesting communication parameter observations in gnss-denied environments
US10184798B2 (en) 2011-10-28 2019-01-22 Microsoft Technology Licensing, Llc Multi-stage dead reckoning for crowd sourcing
US9429657B2 (en) 2011-12-14 2016-08-30 Microsoft Technology Licensing, Llc Power efficient activation of a device movement sensor module
US20140044005A1 (en) * 2012-01-19 2014-02-13 Xirrus, Inc. System and method for conducting wireless site surveys using wireless network design criteria
EP2825900A1 (en) * 2012-03-15 2015-01-21 Nokia Corporation Supporting storage of data
US9319065B2 (en) 2012-03-15 2016-04-19 Nokia Technologies Oy Encoding and decoding of data
JP5979945B2 (ja) 2012-04-09 2016-08-31 任天堂株式会社 情報処理プログラム、情報処理装置、情報処理システムおよび情報処理方法
US9817125B2 (en) 2012-09-07 2017-11-14 Microsoft Technology Licensing, Llc Estimating and predicting structures proximate to a mobile device
TWI489126B (zh) * 2012-12-19 2015-06-21 Ind Tech Res Inst 一種動態無線訊號強度修正系統與方法
WO2014107526A1 (en) * 2013-01-03 2014-07-10 Cinarra Systems Pte. Ltd. Methods and systems for dynamic detection of consumer venue walk-ins
US20140297485A1 (en) * 2013-03-29 2014-10-02 Lexmark International, Inc. Initial Calibration of Asset To-Be-Tracked
KR101800980B1 (ko) * 2013-07-12 2017-11-23 미쓰비시덴키 가부시키가이샤 네트워크 시스템, 휴대 단말 장치 및 대상 기기 특정 방법
KR101466514B1 (ko) * 2013-11-27 2014-11-28 한양대학교 산학협력단 위치 측위 방법 및 그 장치
US20150192658A1 (en) * 2014-01-07 2015-07-09 OmniTrail Technologies Systems and methods for mobile device microlocation
US9485746B2 (en) * 2014-06-03 2016-11-01 Cisco Technology, Inc. Location classification accuracy for devices inside and outside of a deployment area
JP6204889B2 (ja) * 2014-09-01 2017-09-27 日本電信電話株式会社 通信エリア推定システム、サーバ装置、通信エリア推定方法及び通信エリア推定プログラム
US9131403B1 (en) * 2014-09-25 2015-09-08 Ibwave Solutions Inc. Method, computing device and computer program product for visual representation of RF propagation
TWI544822B (zh) * 2014-12-17 2016-08-01 緯創資通股份有限公司 訊號強度分佈建立方法及無線定位系統
JP6800881B2 (ja) * 2015-03-30 2020-12-16 アフェロ インコーポレイテッドＡｆｅｒｏ， Ｉｎｃ． ＩｏＴシステムにおいてユーザ位置を正確に検知するためのシステム及び方法
CN105890580B (zh) * 2016-04-06 2018-01-30 马嘉伦 一种室内空间测绘系统及测绘方法
US10200810B2 (en) 2016-06-12 2019-02-05 Apple Inc. Proactive actions on mobile device using uniquely-identifiable and unlabeled locations
US10117046B2 (en) 2016-06-12 2018-10-30 Apple Inc. Discrete location classification
US10091303B1 (en) 2016-06-12 2018-10-02 Apple Inc. Using in-home location awareness
US10244360B2 (en) 2016-06-12 2019-03-26 Apple Inc. Determining location of mobile device using sensor space to physical space mapping
CN106793067A (zh) * 2016-11-29 2017-05-31 上海斐讯数据通信技术有限公司 一种基于联合网络的多楼层室内定位方法及服务器
FR3064074B1 (fr) * 2017-03-15 2019-05-03 Sigfox Procede et systeme de geolocalisation d’un terminal d’un systeme de communication sans fil
WO2019152849A1 (en) 2018-02-02 2019-08-08 Cornell University Channel charting in wireless systems
JP2019144120A (ja) * 2018-02-21 2019-08-29 国立大学法人九州工業大学 屋内位置推定システム、屋内位置推定方法、及び屋内位置推定方法を実行するプログラム
US10382152B1 (en) * 2018-06-29 2019-08-13 IBT Connect R&D, LLC Spectrum monitor system and apparatus for radio coverage testing
US10945190B2 (en) 2019-01-04 2021-03-09 Apple Inc. Predictive routing based on microlocation
US11567186B2 (en) 2019-03-19 2023-01-31 Kabushiki Kaisha Toshiba Compensating radio tracking with comparison to image based tracking
CN110213733B (zh) * 2019-05-23 2022-07-19 武汉金牛经济发展有限公司 一种电磁热熔焊机物联网络系统
CN114374997B (zh) * 2021-12-28 2024-09-13 中国电信股份有限公司 一种无线信号仿真方法、装置、电子设备及介质
CN114485916B (zh) * 2022-01-12 2023-01-17 广州声博士声学技术有限公司 一种环境噪声监测方法、系统、计算机设备和存储介质
US11922000B2 (en) * 2022-03-29 2024-03-05 At&T Mobility Ii Llc Method and apparatus for generating a venue map from a digital image

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990047966A (ko) * 1997-12-06 1999-07-05 정선종 무선랜을 이용한 이동 단말의 집중 처리 위치 추적 방법
JP2000213948A (ja) 1999-01-20 2000-08-04 Matsushita Electric Ind Co Ltd 移動体マップマッチング装置
JP2003004835A (ja) 2001-06-18 2003-01-08 Teruya:Kk 電界強度による位置測定法
US6674403B2 (en) 2001-09-05 2004-01-06 Newbury Networks, Inc. Position detection and location tracking in a wireless network

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO940977L (no) * 1993-04-06 1994-10-05 Alcatel Str Ag Fremgangsmåte og anordning for å sikre tjenestekvaliteten i et mobilt radiosystem
SE9302140L (sv) * 1993-06-21 1994-08-29 Televerket Förfarande för lokalisering av mobilstationer i digitalt telenät
US5555376A (en) 1993-12-03 1996-09-10 Xerox Corporation Method for granting a user request having locational and contextual attributes consistent with user policies for devices having locational attributes consistent with the user request
US5493692A (en) 1993-12-03 1996-02-20 Xerox Corporation Selective delivery of electronic messages in a multiple computer system based on context and environment of a user
US5812865A (en) 1993-12-03 1998-09-22 Xerox Corporation Specifying and establishing communication data paths between particular media devices in multiple media device computing systems based on context of a user or users
US5602903A (en) * 1994-09-28 1997-02-11 Us West Technologies, Inc. Positioning system and method
GB2311697B (en) * 1996-03-22 1999-07-28 Matsushita Electric Industrial Co Ltd Wireless communication system and method and system for detection of position of radio mobile station
US6035104A (en) 1996-06-28 2000-03-07 Data Link Systems Corp. Method and apparatus for managing electronic documents by alerting a subscriber at a destination other than the primary destination
US6112095A (en) * 1997-01-08 2000-08-29 Us Wireless Corporation Signature matching for location determination in wireless communication systems
US6108557A (en) * 1997-01-08 2000-08-22 Us Wireless Corporation Signature matching for location determination in wireless communication systems
US6084546A (en) 1997-01-08 2000-07-04 Us Wireless Corporation Location determination in wireless communication systems using velocity information
FI105005B (fi) 1997-05-13 2000-05-15 Nokia Networks Oy Päätelaitteen nopeuden estimoimismenetelmä, solun valitsemismenetelmä ja radiojärjestelmä
US6052598A (en) 1997-09-30 2000-04-18 At&T Corp Method for predicting the location of a mobile station in a mobile communications network
US6161018A (en) * 1998-02-27 2000-12-12 Motorola, Inc. Method and system for estimating a subscriber's location in a wireless communication system service area
US6269246B1 (en) 1998-09-22 2001-07-31 Ppm, Inc. Location determination using RF fingerprinting
US6393294B1 (en) * 1998-09-22 2002-05-21 Polaris Wireless, Inc. Location determination using RF fingerprinting
US6266014B1 (en) * 1998-10-09 2001-07-24 Cell-Loc Inc. Methods and apparatus to position a mobile receiver using downlink signals part IV
EP1133836B1 (en) * 1998-11-24 2013-11-13 Intel Corporation Method and apparatus for calibrating a wireless communications station having an antenna array
US6812937B1 (en) 1998-12-18 2004-11-02 Tangis Corporation Supplying enhanced computer user's context data
US7107539B2 (en) 1998-12-18 2006-09-12 Tangis Corporation Thematic response to a computer user's context, such as by a wearable personal computer
US7076737B2 (en) 1998-12-18 2006-07-11 Tangis Corporation Thematic response to a computer user's context, such as by a wearable personal computer
US6968333B2 (en) 2000-04-02 2005-11-22 Tangis Corporation Soliciting information based on a computer user's context
US6842877B2 (en) 1998-12-18 2005-01-11 Tangis Corporation Contextual responses based on automated learning techniques
US7137069B2 (en) 1998-12-18 2006-11-14 Tangis Corporation Thematic response to a computer user's context, such as by a wearable personal computer
US7055101B2 (en) 1998-12-18 2006-05-30 Tangis Corporation Thematic response to a computer user's context, such as by a wearable personal computer
US6791580B1 (en) 1998-12-18 2004-09-14 Tangis Corporation Supplying notifications related to supply and consumption of user context data
US6466232B1 (en) 1998-12-18 2002-10-15 Tangis Corporation Method and system for controlling presentation of information to a user based on the user's condition
US6513046B1 (en) 1999-12-15 2003-01-28 Tangis Corporation Storing and recalling information to augment human memories
US6747675B1 (en) 1998-12-18 2004-06-08 Tangis Corporation Mediating conflicts in computer user's context data
US6801223B1 (en) 1998-12-18 2004-10-05 Tangis Corporation Managing interactions between computer users' context models
US6330429B1 (en) 1999-04-14 2001-12-11 Lucent Technologies, Inc. Channel grouping system and method for a wireless communications system
US6263208B1 (en) * 1999-05-28 2001-07-17 Lucent Technologies Inc. Geolocation estimation method for CDMA terminals based on pilot strength measurements
US6535833B1 (en) 1999-11-22 2003-03-18 Nokia Mobile Phones Ltd. Method and apparatus for filtering measurements used in a generalized positioning system
EP1109031A1 (de) 1999-12-10 2001-06-20 Ascom Systec AG Verfahren und Einrichtung zum Lokalisieren eines mobilen Terminals
JP2002160185A (ja) * 2000-03-31 2002-06-04 Sony Corp ロボット装置、ロボット装置の行動制御方法、外力検出装置及び外力検出方法
WO2002033541A2 (en) 2000-10-16 2002-04-25 Tangis Corporation Dynamically determining appropriate computer interfaces
US20020044152A1 (en) 2000-10-16 2002-04-18 Abbott Kenneth H. Dynamic integration of computer generated and real world images
US20020054130A1 (en) 2000-10-16 2002-05-09 Abbott Kenneth H. Dynamically displaying current status of tasks
EP1205331B1 (en) * 2000-11-14 2005-09-07 Nissan Motor Company, Limited Driving force control apparatus
FI111901B (fi) * 2000-12-29 2003-09-30 Ekahau Oy Sijainnin arviointi langattomissa tietoliikenneverkoissa
JP4513219B2 (ja) * 2001-03-06 2010-07-28 住友電気工業株式会社 前置型非線形歪補償器
JP3536094B2 (ja) * 2001-09-07 2004-06-07 独立行政法人通信総合研究所 多値変調の等化方法及びそれを用いたイコライザー
US7030814B2 (en) 2001-09-07 2006-04-18 Sirf Technology, Inc. System and method to estimate the location of a receiver in a multi-path environment
US6873852B2 (en) 2002-01-10 2005-03-29 Telefonaktiebolaget Lm Ericsson (Publ) System and method of estimating the position of a mobile terminal in a radio telecommunications network
US6839027B2 (en) 2002-11-15 2005-01-04 Microsoft Corporation Location measurement process for radio-frequency badges employing path constraints
US7747307B2 (en) 2003-03-04 2010-06-29 Calypso Medical Technologies, Inc. Method and system for marker localization
US6992625B1 (en) * 2003-04-25 2006-01-31 Microsoft Corporation Calibration of a device location measurement system that utilizes wireless signal strengths

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990047966A (ko) * 1997-12-06 1999-07-05 정선종 무선랜을 이용한 이동 단말의 집중 처리 위치 추적 방법
JP2000213948A (ja) 1999-01-20 2000-08-04 Matsushita Electric Ind Co Ltd 移動体マップマッチング装置
JP2003004835A (ja) 2001-06-18 2003-01-08 Teruya:Kk 電界強度による位置測定法
US6674403B2 (en) 2001-09-05 2004-01-06 Newbury Networks, Inc. Position detection and location tracking in a wireless network

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US7233286B2 (en) 2007-06-19
CN100523860C (zh) 2009-08-05
CN1570664A (zh) 2005-01-26
EP1471688A2 (en) 2004-10-27
US7411549B2 (en) 2008-08-12
US20070241963A1 (en) 2007-10-18
KR20040092414A (ko) 2004-11-03
EP1471688A3 (en) 2008-05-07
US20060119516A1 (en) 2006-06-08
JP4065437B2 (ja) 2008-03-26
JP2004325440A (ja) 2004-11-18
US6992625B1 (en) 2006-01-31

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