CA2195591A1 - Method and apparatus for determining the location of a mobile telephone - Google Patents
Method and apparatus for determining the location of a mobile telephoneInfo
- Publication number
- CA2195591A1 CA2195591A1 CA002195591A CA2195591A CA2195591A1 CA 2195591 A1 CA2195591 A1 CA 2195591A1 CA 002195591 A CA002195591 A CA 002195591A CA 2195591 A CA2195591 A CA 2195591A CA 2195591 A1 CA2195591 A1 CA 2195591A1
- Authority
- CA
- Canada
- Prior art keywords
- location
- mobile telephone
- mobile
- calculated
- area
- 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
Abstract
A method and apparatus for determining the location of a mobile telephone within the serving area of a mobile telephone system are disclosed. A mobile switching center analyzes the calling mobile telephone number and called telephone number to determine if a location function is required. Upon initiation of the location function by the mobile switching center, a mobile location module calculates a location estimate of the mobile telephone. The mobile location module receives a list of signal strengths received by the mobile telephone from cell site antennas within the serving area. The distance between the mobile telephone and a plurality of cell site antennas is calculated using a technique which reduces the error component of the calculated distances. These reduced error distances are used togeometrically determine an estimate of the location area. In addition, the mobile telephone comprises a GPS receiver/processor for sending the most recent GPS coordinates of the mobile telephone which are within a predetermined confidence level to the mobile location module. These GPS coordinates are compared with the calculated location area to increase the accuracy of the location determination.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US603,793 | 1996-02-20 | ||
US08/603,793 US5724660A (en) | 1995-06-07 | 1996-02-20 | Method and apparatus for locating a mobile station by comparing calculated location area with GPS coordinates |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2195591A1 true CA2195591A1 (en) | 1997-08-21 |
CA2195591C CA2195591C (en) | 2001-09-04 |
Family
ID=24416939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002195591A Expired - Fee Related CA2195591C (en) | 1996-02-20 | 1997-01-21 | Method and apparatus for determining the location of a mobile telephone |
Country Status (2)
Country | Link |
---|---|
BR (1) | BR9701024B1 (en) |
CA (1) | CA2195591C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7362239B2 (en) | 2004-06-01 | 2008-04-22 | Persen Technologies Incorporated | Vehicle warning system |
RU2494411C2 (en) * | 2002-10-17 | 2013-09-27 | Квэлкомм Инкорпорейтед | Method and apparatus for improving accuracy of radar location using measurements |
-
1997
- 1997-01-21 CA CA002195591A patent/CA2195591C/en not_active Expired - Fee Related
- 1997-02-20 BR BRPI9701024-3A patent/BR9701024B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2494411C2 (en) * | 2002-10-17 | 2013-09-27 | Квэлкомм Инкорпорейтед | Method and apparatus for improving accuracy of radar location using measurements |
US7362239B2 (en) | 2004-06-01 | 2008-04-22 | Persen Technologies Incorporated | Vehicle warning system |
Also Published As
Publication number | Publication date |
---|---|
CA2195591C (en) | 2001-09-04 |
MX9701205A (en) | 1998-05-31 |
BR9701024A (en) | 1998-11-03 |
BR9701024B1 (en) | 2009-08-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20170123 |