CA2316170A1 - Communications localization system - Google Patents
Communications localization system Download PDFInfo
- Publication number
- CA2316170A1 CA2316170A1 CA002316170A CA2316170A CA2316170A1 CA 2316170 A1 CA2316170 A1 CA 2316170A1 CA 002316170 A CA002316170 A CA 002316170A CA 2316170 A CA2316170 A CA 2316170A CA 2316170 A1 CA2316170 A1 CA 2316170A1
- Authority
- CA
- Canada
- Prior art keywords
- transceiver
- cellular
- passive monitoring
- assistance
- timing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Traffic Control Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
A method and apparatus for locating a mobile radio communications transceiver in a cellular-telephone or cellular-like communications system use a simplified system for passive monitoring of the signals emitted by the transceiver. Two receiving base stations can determine the timing of signal arrivals from the remote transceiver. This timing information is then combined with collateral, position-sensitive information to determine the likely location of the transceiver. The present invention has particular applicability to roadway transportation in that it facilitates enhanced emergency services and roadside assistance in response to calls for assistance, and it permits the passive monitoring of traffic flow.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1997/023864 WO1998029758A1 (en) | 1996-12-26 | 1997-12-23 | Communications localization system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2316170A1 true CA2316170A1 (en) | 1998-07-09 |
| CA2316170C CA2316170C (en) | 2005-10-25 |
Family
ID=22262363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002316170A Expired - Lifetime CA2316170C (en) | 1997-12-23 | 1997-12-23 | Communications localization system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2002533822A (en) |
| CA (1) | CA2316170C (en) |
| IL (1) | IL136934A0 (en) |
| MX (1) | MXPA00006301A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016105098A (en) * | 2015-12-28 | 2016-06-09 | 株式会社ユピテル | Position trace data processing device and program thereof |
-
1997
- 1997-12-23 MX MXPA00006301A patent/MXPA00006301A/en active IP Right Grant
- 1997-12-23 CA CA002316170A patent/CA2316170C/en not_active Expired - Lifetime
- 1997-12-23 IL IL13693497A patent/IL136934A0/en not_active IP Right Cessation
- 1997-12-23 JP JP2000590453A patent/JP2002533822A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IL136934A0 (en) | 2001-06-14 |
| MXPA00006301A (en) | 2002-05-08 |
| CA2316170C (en) | 2005-10-25 |
| JP2002533822A (en) | 2002-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2204125A1 (en) | Communications localization system | |
| US5767788A (en) | Computer aided dispatch and locator cellular system | |
| CA2194424A1 (en) | Mobile communication system | |
| CA2203302C (en) | Vehicle tracking system using cellular network | |
| EP1429115A4 (en) | Traffic information search method, traffic information search system, mobile body communication device, and network navigation center | |
| EA200000713A1 (en) | METHOD FOR DETERMINING THE LOCATION OF A MOBILE TRANSMITTERING SYSTEM AND THE SYSTEM FOR ITS IMPLEMENTATION | |
| AU1046900A (en) | Help and/or risk signaling means for the traffic of vehicles and pedestrians using a short range infrared or electromagnetic signaling system | |
| EP1519201A3 (en) | System and method for determining the position of a wireless CDMA transceiver | |
| WO2002023922A3 (en) | Cellular phone using voice communication for requesting location services | |
| WO2005065320A3 (en) | Tdoa/gps hybrid wireless location system | |
| JPH0495791A (en) | Monitoring system for position of mobile station | |
| EE200000120A (en) | System and Method for Sharing a Reference Frequency Signal Between a Cellular Radio Transceiver of a Mobile Terminal and a Global Positioning System Receiver | |
| CA2303264A1 (en) | Method and system for determining position of a cellular mobile terminal | |
| WO2002013556A3 (en) | Mobile micro portal | |
| WO2003027703A3 (en) | An embedded chirp signal for position determination in cellular communication systems | |
| CA2259401A1 (en) | Annunciator system with mobile receivers | |
| NZ241037A (en) | Beacon transmits location of pstn access point | |
| WO2003012473A8 (en) | Passive moving object detection system and method using signals transmitted by a mobile telephone station | |
| WO2002073231A3 (en) | Server-assisted position determination in a radio network | |
| TW200511865A (en) | Location based method and system for wireless mobile unit communication | |
| ID21028A (en) | METHODS OF COMMUNICATION, TRANSMITTER, AIRCRAFT RECEIVER, AND CELLULAR RADIO COMMUNICATION SYSTEM | |
| CA2248839A1 (en) | Digital sonic and ultrasonic communications networks | |
| WO2004105356A3 (en) | Wireless local positioning system | |
| WO1996012264A3 (en) | A wireless object locating system and a central station and a radio alarm apparatus | |
| KR100602343B1 (en) | Virtual network formation method, virtual network and program storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20171227 |