Invention Grant
- Patent Title: Wireless location using network centric location estimators
- Patent Title (中): 使用以网络为中心的位置估计器的无线位置
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Application No.: US13323221Application Date: 2011-12-12
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Publication No.: US09134398B2Publication Date: 2015-09-15
- Inventor: Dennis J. Dupray , Charles L. Karr , Sheldon F. Goldberg
- Applicant: Dennis J. Dupray , Charles L. Karr , Sheldon F. Goldberg
- Applicant Address: US CO Golden
- Assignee: TracBeam LLC
- Current Assignee: TracBeam LLC
- Current Assignee Address: US CO Golden
- Agent Dennis J. Dupray
- Main IPC: G01S1/02
- IPC: G01S1/02 ; G01S5/00 ; G01S5/02 ; H04W64/00 ; G01S5/06

Abstract:
A wireless location system is disclosed having one or more location centers for locating mobile stations (MS) based on, e.g., WIFI, CDMA, AMPS, NAMPS, TDMA, GPRS, and GSM. MS location requests can be processed via, e.g., Internet communication between a network of location centers. A plurality of MS locating technologies may be used, including those based on: two-way TOA and TDOA; pattern recognition; distributed antennas; and reduced coverage base stations. The system includes strategies for: automatically adapting and calibrating system performance according to environmental and geographical changes; automatically capturing location signal data for enhancing a historical data base retaining predictive location signal data; evaluating MS locations according to heuristics and constraints related to, e.g., terrain, MS velocity and path; and adjusting likely MS locations adaptively and statistically. The system is useful for emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.
Public/Granted literature
- US20120190380A1 WIRELESS LOCATION USING NETWORK CENTRIC LOCATION ESTIMATORS Public/Granted day:2012-07-26
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