1
Lawrence J Hutchings, Richard Gross, Stephen Jarpe: System and method for measuring movement of objects. Acceleron Technologies, Sofer & Haroun, September 26, 2000: US06122960 (164 worldwide citation)

A device that measures the distance traveled, speed, and height jumped of a person while running or walking. Accelerometers and rotational sensors are placed in the sole of one shoe along with an electronic circuit that performs mathematical calculations to determine the distance and height of each ...


2
David Kodrin, Lawrence Hutchings, Paul Kasameyer, Anthony Mathews, Stephen Jarpe: Devices, systems and method of determining the location of mobile personnel. Mine Safety Appliances Company, The Webb Law Firm, October 16, 2012: US08289154 (1 worldwide citation)

A locator system for use in connection with at least one mobile person includes a mobile locator system adapted to be worn by the person, wherein the mobile locator system includes an inertial navigation system. The locator system further includes a reference locator system to provide information ab ...


3
David Kodrin, Stephen Jarpe, Lawrence Hutchings, Paul Kasameyer, Anthony Matthews: Devices, Systems and Method of Determining the Location of Mobile Personnel. Mine Safety Appliances Company, Mine Safety Appliances Company, January 14, 2010: US20100007485-A1

A locator system for use in connection with at least one mobile person includes a mobile locator system adapted to be worn by the person, wherein the mobile locator system includes an inertial navigation system. The locator system further includes a reference locator system to provide information ab ...