Abstract: An apparatus for augmented and virtual reality systems can include a mount, a base, a linkage, a linkage sensor, and a receiver assembly. The mount can releasably attach to an anchor structure. The base can be adjustably engaged or fixedly engaged with the mount. The linkage can be adjustably engaged with the base. The linkage sensor can sense the orientation of the linkage relative to the base. The receiver assembly can receive a tool.

Abstract: Described are various embodiments of capstan drive transmission self-tensioning apparatus and method. In one embodiment, the capstan drive transmission self-tensioning apparatus comprises a body coupled to the capstan drive drum comprising a force providing member coupled to the cable and configured to displace the cable along a path increasing an effective distance between said first end and said second end of the cable thereby increasing a tension within said cable; a jamming assembly directly or indirectly coupled to said cable and configured to: allow motion of said cable along said path upon said tension being below a lower designated level; and prevent motion of said cable along an opposite path upon said tension being above an upper designated level. In some embodiments, the jamming assembly may comprise a spring-loaded rocker mechanism, a ratcheting mechanism or a directional frictional material to provide the jamming effect.

Abstract: A mechanism to reduce the amplitude of acceleration experienced by IMUs for tracked objects while maintaining a more accurate estimate of the device orientation. The invention uses parallel mechanisms to maintain the correct orientation of an IMU while allowing for damped translational degrees of freedom to limit the degradation of performance while spatially tracking a body.

Abstract: A respiratory device can include an oxygen generator and a ventilator. The oxygen generator can include a first inlet to ambient air, a vacuum or pressure swing oxygen generating system in fluid communication with the first inlet, a first fluid pathway, and a first outlet. The ventilator can include a second inlet to ambient air and a blower in fluid communication with the second inlet to draw ambient air. The ventilator can include a third inlet in fluid communication with the first fluid pathway upstream of the first outlet. The blower can also be in fluid communication with the second inlet to draw at least some of the extracted oxygen. The ventilator can also include a second outlet in fluid communication with the blower to dispense a mixture of the ambient air and the extracted oxygen to the user.

Abstract: A mechanism to reduce the amplitude of acceleration experienced by IMUs for tracked objects while maintaining a more accurate estimate of the device orientation. The invention uses parallel mechanisms to maintain the correct orientation of an IMU while allowing for damped translational degrees of freedom to limit the degradation of performance while spatially tracking a body.