1
Eric Foxlin: Tracking, auto-calibration, and map-building system. InterSense, Fish & Richardson P C, July 26, 2005: US06922632 (228 worldwide citation)

A navigation or motion tracking system includes components associated with particular sensors, which are decoupled from a tracking component that takes advantage of information in the sensor measurements. The architecture of this system enables development of sensor-specific components independently ...


2
Eric Foxlin: Self-referenced tracking. InterSense, Fish & Richardson P C, November 27, 2007: US07301648 (189 worldwide citation)

A new tracking technique is essentially “sourceless” in that it can be used anywhere with no set-up, yet it enables a much wider range of virtual environment-style navigation and interaction techniques than does a simple head-orientation tracker. A sourceless head orientation tracker is combined wit ...


3
Eric Foxlin, Yury Altshuler: Motion-tracking. Intersense, Fish & Richardson P C, February 21, 2006: US07000469 (160 worldwide citation)

A system for tracking the motion of an object relative to a moving reference frame includes a first inertial sensor mounted on the tracked object; a second inertial sensor mounted on the moving reference frame; a third inertial sensor mounted on the moving reference frame and spaced apart from the s ...


4
Eric Foxlin: Self-referenced tracking. InterSense, Fish & Richardson P C, June 29, 2004: US06757068 (152 worldwide citation)

A new tracking technique is essentially “sourceless” in that it can be used anywhere with no set-up, yet it enables a much wider range of virtual environment-style navigation and interaction techniques than does a simple head-orientation tracker. A sourceless head orientation tracker is combined wit ...


5
Eric Foxlin, Yury Altshuler: Motion-tracking. Intersense, Fish & Richardson P C, November 5, 2002: US06474159 (142 worldwide citation)

Inertial trackers have been successfully applied to a wide range of head mounted display (HMD) applications including virtual environment training, VR gaming and even fixed-base vehicle simulation, in which they have gained widespread acceptance due to their superior resolution and low latency. Unti ...


6
Leonid Naimark, Eric Foxlin: Fiducial detection system. InterSense, Fish & Richardson P C, June 12, 2007: US07231063 (121 worldwide citation)

A new fiducial design allows having thousands of different codes. These fiducials are printed on a standard black-and-white (or color) printer and easily could be mounted on a walls, ceiling and objects in a room. The design includes “solid” outside mono-color ring and 2-D dense inside coding scheme ...


7
Eric Foxlin, Yury Altshuler: Motion-tracking. Intersense, Fish & Richardson P C, January 27, 2004: US06681629 (111 worldwide citation)

Inertial trackers have been successfully applied to a wide range of head mounted display (HMD) applications including virtual environment training, VR gaming and even fixed-base vehicle simulation, in which they have gained widespread acceptance due to their superior resolution and low latency. Unti ...


8
Eric Foxlin: Tracking, auto-calibration, and map-building system. InterSense, Fish & Richardson P C, May 25, 2010: US07725253 (39 worldwide citation)

A navigation or motion tracking system includes components associated with particular sensors, which are decoupled from a tracking component that takes advantage of information in the sensor measurements. The architecture of this system enables development of sensor-specific components independently ...


9
Foxlin Eric, Naimark Leonid: Tracking objects with markers. Intersense, July 23, 2008: EP1946243-A2 (15 worldwide citation)

The spatial location and azimuth of an object are computed from the locations, in a single camera image, of exactly two points on the object and information about an orientation of the object. One or more groups of four or more collinear markers are located in an image, and for each group, first and ...


10
Eric Foxlin, Russell L Moore: Range measuring system. Intersense, Fish & Richardson P C, November 6, 2001: US06314055 (14 worldwide citation)

A system is provided for determining range to a wave energy source. The system includes a transmitter for transmitting a burst of pulses of wave energy in response to a trigger signal. A receiver is provided for determining a time of arrival of the burst and from such determined time of arrival, the ...