Abstract: A method and apparatus for utilizing an inertial measurement unit and one or more additional sensors on a head mounted display is provided. In an embodiment, a head mounted display system sends inertial measurement unit data and head mounted display removal data to a tracking computing device. The tracking computing device identifies a time of removal of the head mounted display from the head of the user and stores a portion of the inertial measurement unit data corresponding to the time of removal of the head mounted display from the head of the user. Based on the stored portion of the inertial measurement unit data, the tracking computing device determines a state of the user of the head mounted display system at the time of removal.

Abstract: A method and apparatus for assessing comfort levels associated with user experience of a virtual reality environment is provided.

Abstract: A method and apparatus for utilizing an inertial measurement unit and one or more additional sensors on a head mounted display is provided. In an embodiment, a head mounted display system sends inertial measurement unit data and head mounted display removal data to a tracking computing device. The tracking computing device identifies a time of removal of the head mounted display from the head of the user and stores a portion of the inertial measurement unit data corresponding to the time of removal of the head mounted display from the head of the user. Based on the stored portion of the inertial measurement unit data, the tracking computing device determines a state of the user of the head mounted display system at the time of removal.

Abstract: A guardrail system (20) and method comprises utilizing at least one through-hole (577) of a poured concrete wall (520) of a structure (500) to affix a stanchion (22, 122, 222) to the wall inside a bay (530) of the structure. The stanchion allows for a guardrail (30) or a gate to be conveniently and securely positioned within the bay (530) without damage to the structure and without covering an edge (515, 525) of the structure (500). A fastener (24) inserts through the through-hole (577) which is a pre-existing tie-hole (576) resulting from formation of the wall (520). In one optional aspect a guardrail stanchion (222) includes a base segment (50) having at least two slots (26) for receiving fasteners (24) which insert through two tie-holes (576) of the wall (520), and at least one side segment (52) having at least one adjustment port (56), the side segment (52) extending generally perpendicular to the base segment (50).

Abstract: A guardrail system (20) and method comprises utilizing at least one through-hole (577) of a poured concrete wall (520) of a structure (500) to affix a stanchion (22, 122, 222) to the wall inside a bay (530) of the structure. The stanchion allows for a guardrail (30) or a gate to be conveniently and securely positioned within the bay (530) without damage to the structure and without covering an edge (515, 525) of the structure (500). A fastener (24) inserts through the through-hole (577) which is a pre-existing tie-hole (576) resulting from formation of the wall (520). In one optional aspect a guardrail stanchion (222) includes a base segment (50) having at least two slots (26) for receiving fasteners (24) which insert through two tie-holes (576) of the wall (520), and at least one side segment (52) having at least one adjustment port (56), the side segment (52) extending generally perpendicular to the base segment (50).