1
Robert J Anderson, Alan E E Rogers, Louis A Stilp: Method for estimating TDOA and FDOA in a wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn, April 5, 2005: US06876859 (210 worldwide citation)

A method, used in locating a mobile transmitter, includes providing a set of cross-correlation values, wherein each cross-correlation value is associated with a corresponding TDOA and/or FDOA estimate and is produced by cross-correlating a reference signal with a cooperating signal. The reference si ...


2
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Vineet Sachdev: Mobile-assisted network based techniques for improving accuracy of wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn, October 8, 2002: US06463290 (180 worldwide citation)

The accuracy of the location estimate of a Wireless Location System is dependent, in part, upon both the transmitted power of the wireless transmitter and the length in time of the transmission from the wireless transmitter. In general, higher power transmissions and transmissions of greater transmi ...


3
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Andrew F Harbison: Antenna selection method for a wireless location system. TruePosition, Massachusetts Insitute of Technology, Woodcock Washburn, June 4, 2002: US06400320 (130 worldwide citation)

An antenna selection method is used in a wireless location system that determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems connected to multiple antennas at a plurality of cell sites and a location processor for process ...


4
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson: Collision recovery in a wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn, May 13, 2003: US06563460 (109 worldwide citation)

A collision recovery method for use in a Wireless Location System includes receiving a transmission from a wireless transmitter at multiple signal collection systems and multiple antenna ports of each of the multiple signal collection systems. At each of the multiple signal collection systems, the t ...


5
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson: Station based processing method for a wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn Kurtz Mackiewicz & Norris, September 4, 2001: US06285321 (107 worldwide citation)

A station-based method for use in a wireless location system determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems and location processors for processing digital data provided by the signal collection systems. The station ...


6
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Andrew F Harbison: Antenna selection method for a wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn, December 9, 2003: US06661379 (103 worldwide citation)

An antenna selection method is used in a wireless location system that determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems connected to multiple antennas at a plurality of cell sites and a location processor for process ...


7
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Andrew F Harbison: Baseline selection method for use in a wireless location system. TruePosition, Massachusetts Institute of Technology, Woodcock Washburn, November 19, 2002: US06483460 (102 worldwide citation)

A Wireless Location System includes signal collection systems and location processors for processing digital data provided by the signal collection systems. To determine the geographic location of a mobile wireless transmitter, time difference of arrival, or TDOA, data is determined with respect to ...


8
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Andrew F Harbison: Antenna selection method for a wireless location system. TruePosition, Woodcock Washburn, October 10, 2002: US20020145564-A1

An antenna selection method is used in a wireless location system that determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems connected to multiple antennas at a plurality of cell sites and a location processor for process ...


9
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson: Collision recovery in a wireless location system. Michael D Stein, Woodcock Washburn, June 27, 2002: US20020080069-A1

A collision recovery method for use in a Wireless Location System includes receiving a transmission from a wireless transmitter at multiple signal collection systems and multiple antenna ports of each of the multiple signal collection systems. At each of the multiple signal collection systems, the t ...


10
Louis A Stilp, Joseph W Sheehan, Alan E E Rogers, Robert J Anderson, Andrew F Harbison: Baseline selection method for use in a wireless location system. Woodcock Washburn, August 1, 2002: US20020101375-A1

A Wireless Location System includes signal collection systems and location processors for processing digital data provided by the signal collection systems. To determine the geographic location of a mobile wireless transmitter, time difference of arrival, or TDOA, data is determined with respect to ...