Patents by Inventor Charles L. Karr

Charles L. Karr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7525484
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on, e.g., CDMA, AMPS, NAMPS or TDMA communication standards, for processing both local MS location requests and more global MS location requests via, e.g., Internet communication between a distributed network of location centers. The system uses a plurality of MS locating technologies including those based on: (1) two-way TOA and TDOA; (2) pattern recognition; (3) distributed antenna provisioning; and (4) supplemental information from various types of very low cost non-infrastructure base stations for communicating via a typical commercial wireless base station infrastructure or a public telephone switching network.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: April 28, 2009
    Assignee: TracBeam LLC
    Inventors: Dennis J. Dupray, Charles L. Karr
  • Publication number: 20080167049
    Abstract: A wireless location system is disclosed. Locations of mobile stations (MS) may be determined using one or more MS locating technologies based on, e.g.: computed offsets from terrestrial base stations; satellite transmissions; indoor antennas; low range base stations; and in particular, signal pattern recognition for associating wireless signal characteristics with distinct geographic locations. The system can: adapt and/or calibrate its performance with environmental and geographical changes; capture location signal data for enhancement of a self-maintaining database of predictive location signal data; evaluate MS locations using heuristics and constraints related to terrain, MS velocity and path extrapolation; and adjust MS locations adaptively and/or statistically for providing more reliable and accurate locations. The system can be configured for environments ranging from dense urban, urban, suburban, rural, mountain to low traffic or isolated roadways.
    Type: Application
    Filed: April 24, 2007
    Publication date: July 10, 2008
    Applicant: TRACBEAM LLC
    Inventors: Charles L. Karr, Dennis J. Dupray
  • Patent number: 7298327
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on, e.g., CDMA, AMPS, NAMPS or TDMA communication standards, for processing both local MS location requests and more global MS location requests via, e.g., Internet communication between a distributed network of location centers. The system uses a plurality of MS locating technologies including those based on: (1) two-way TOA and TDOA; (2) pattern recognition; (3) distributed antenna provisioning; and (4) supplemental information from various types of very low cost non-infrastructure base stations for communicating via a typical commercial wireless base station infrastructure or a public telephone switching network.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: November 20, 2007
    Assignee: TracBeam LLC
    Inventors: Dennis J. Dupray, Charles L. Karr
  • Patent number: 6952181
    Abstract: A location is disclosed for wireless telecommunication infrastructures. The systems output requested locations of hand sets or mobile stations (MS) based on, e.g., AMPS, NAMPS, CDMA or TDMA communication standards. The system determines both local MS locations, and more global MS location requests via, e.g., Internet communication. The system uses a plurality of mobile station locating technologies, including those based on, e.g., (1) two-way TOA and TDOA; (2) home base stations and (3) distributed antenna provisioning. The system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas. The system is particularly useful for estimating a location of an MS using information received from a commercial mobile radio service provider (CMRS) for which the MS is not registered for subscriber services.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: October 4, 2005
    Assignee: TracBeam, LLC
    Inventors: Charles L Karr, Frederick W. LeBlanc, Dennis J. Dupray
  • Publication number: 20030222819
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location systems for outputting requested locations of commercially available hand sets or mobile stations (MS) based on, e.g., AMS, NAMPS, CDMA or TDMA communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The system uses a plurality of mobile station locating technologies including those based on: (1) two-way TOA and TDOA; (2) home base stations and (3) distributed antenna provisioning. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways.
    Type: Application
    Filed: March 28, 2001
    Publication date: December 4, 2003
    Applicant: TracBeam LLC.
    Inventors: Charles L. Karr, Frederick W. LeBlanc, Dennis J. Dupray
  • Publication number: 20030222820
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on, e.g., CDMA, AMPS, NAMPS or TDMA communication standards, for processing both local MS location requests and more global MS location requests via, e.g., Internet communication between a distributed network of location centers. The system uses a plurality of MS locating technologies including those based on: (1) two-way TOA and TDOA; (2) pattern recognition; (3) distributed antenna provisioning; and (4) supplemental information from various types of very low cost non-infrastructure base stations for communicating via a typical commercial wireless base station infrastructure or a public telephone switching network.
    Type: Application
    Filed: September 30, 2002
    Publication date: December 4, 2003
    Applicant: TracBeam LLC
    Inventors: Charles L. Karr, Dennis J. Dupray
  • Publication number: 20030146871
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on, e.g., CDMA, AMPS, NAMPS or TDMA communication standards, for processing both local MS location requests and more global MS location requests via, e.g., Internet communication between a distributed network of location centers. The system uses a plurality of MS locating technologies including those based on: (1) two-way TOA and TDOA; (2) pattern recognition; (3) distributed antenna provisioning; and (4) supplemental information from various types of very low cost non-infrastructure base stations for communicating via a typical commercial wireless base station infrastructure or a public telephone switching network.
    Type: Application
    Filed: September 30, 2002
    Publication date: August 7, 2003
    Applicant: TracBeam LLC
    Inventors: Charles L. Karr, Dennis J. Dupray
  • Publication number: 20010022558
    Abstract: A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on, e.g., CDMA, AMPS, NAMPS or TDMA communication standards, for processing both local MS location requests and more global MS location requests via, e.g., Internet communication between a distributed network of location centers. The system uses a plurality of MS locating technologies including those based on: (1) two-way TOA and TDOA; (2) pattern recognition; (3) distributed antenna provisioning; and (4) supplemental information from various types of very low cost non-infrastructure base stations for communicating via a typical commercial wireless base station infrastructure or a public telephone switching network.
    Type: Application
    Filed: January 26, 2001
    Publication date: September 20, 2001
    Applicant: TracBeam LLC
    Inventors: Charles L. Karr, Dennis J. Dupray
  • Patent number: 6236365
    Abstract: A location system for commercial wireless telecommunication infrastructures (CMRRs). The system is an end-to-end solution having one or more location systems (42) for outputting requested locations of commercially available hand sets or mobile stations (not shown) based on, e.g. AMPS, NAMPS, CDMA or TDMA communication standards, for processing both local mobile station location requests and more global mobile station location requests via, e.g., Internet communication between a distributed network of location systems. The system uses a plurality of mobile station locating technologies including those based on: two-way TOA and TDOA; home base stations and distributed antenna provisioning. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: May 22, 2001
    Assignee: TracBeam, LLC
    Inventors: Frederick W. LeBlanc, Dennis J. Dupray, Charles L. Karr