Abstract: A system, having: a first sensor module having an inertial measurement unit and configured to be attached to a forearm of a user and to generate first motion data identifying an orientation of the forearm connected between a hand of the user and an upper arm of the user; a second sensor module having an inertial measurement unit and configured to be attached to the hand of the user and to generate second motion data identifying an orientation of the hand; and a computing device communicatively coupled to the first sensor module and the second sensor module through communication links, the computing device configured to calculate, based on the orientation of the forearm, a position of the forearm, and the orientation of the hand, an orientation of the upper arm.

Abstract: A sensor manager for virtual reality, augmented reality, mixed reality, or extended reality, configured to: communicate with at least one input module attached to a user, the at least one input module having at least one inertial measurement unit and at least one sensor separate from the inertial measurement unit; receive, from the at least one sensor, at least one indicator of time instance; identify, based on the at least one indicator, a segment of motion inputs generated by the at least one inertial measurement unit; and determine a gesture classification from the segment of motion inputs.

Abstract: A sensor manager for virtual reality, augmented reality, mixed reality, or extended reality, configured to: communicate with a plurality of input modules attached to different parts of a user; communicate, with an application that generates a virtual reality content presented to the user; determine a context of the application, including geometry data of objects in the virtual reality content with which the user is allowed to interact with, commands to operate the objects, and gestures usable to invoke the respective commands; process input data received from the input modules to recognize gestures performed by the user; and communicate with the application to invoke commands identified based on the context of the application and the gestures recognized from the input data.

Abstract: An apparatus having a ring-shaped housing configured to be wrapped round a finger of a user, the ring-shaped housing having an opening or a joint at a first point round the finger and a first contiguous section that is at a location opposite to the first point across a central axis of the ring-shaped housing; an antenna configured in the ring-shaped housing in the contiguous section; an inertial measurement unit configured to measure motions of the finger; a light-emitting diode (LED) indicator configured on an outer portion of the ring-shaped housing; a charging pad configured to charge a battery configured in the ring-shaped housing; and/or a touch pad configured to receive touch input from a finger of the user.

Abstract: An apparatus having a ring-shaped housing configured to be wrapped round a finger of a user, the ring-shaped housing having an opening or a joint at a first point round the finger and a first contiguous section that is at a location opposite to the first point across a central axis of the ring-shaped housing; an antenna configured in the ring-shaped housing in the contiguous section; an inertial measurement unit configured to measure motions of the finger; a light-emitting diode (LED) indicator configured on an outer portion of the ring-shaped housing; a charging pad configured to charge a battery configured in the ring-shaped housing; and/or a touch pad configured to receive touch input from a finger of the user.

Abstract: A device having a ring-shaped housing configured to be wrapped around a finger of a user, the ring-shaped housing having a base portion and a clip portion, the clip portion connected to the base portion via a hinge, wherein the clip portion is configured to attach to a phalange of a user's hand; and a sensor physically attached to the base portion, the sensor including at least one electrical component.

Abstract: An apparatus having a touch pad configured to receive touch input from a finger of the user, wherein a surface of the touch pad has a curved portion for sensing touch; an antenna configured in the ring-shaped housing in the contiguous section; an inertial measurement unit configured to measure motions of the finger; a light-emitting diode (LED) indicator configured on an outer portion of the ring-shaped housing; a charging pad configured to charge a battery configured in the ring-shaped housing; and/or a touch pad configured to receive touch input from a finger of the user.

Abstract: An apparatus having a ring-shaped housing configured to be wrapped round a finger of a user, the ring-shaped housing having an opening or a joint at a first point round the finger and a first contiguous section that is at a location opposite to the first point across a central axis of the ring-shaped housing; an antenna configured in the ring-shaped housing in the contiguous section; an inertial measurement unit configured to measure motions of the finger; a light-emitting diode (LED) indicator configured on an outer portion of the ring-shaped housing; a charging pad configured to charge a battery configured in the ring-shaped housing; and/or a touch pad configured to receive touch input from a finger of the user.

Abstract: A system, having: a first sensor module having an inertial measurement unit and configured to be attached to a forearm of a user and to generate first motion data identifying an orientation of the forearm connected between a hand of the user and an upper arm of the user; a second sensor module having an inertial measurement unit and configured to be attached to the hand of the user and to generate second motion data identifying an orientation of the hand; and a computing device communicatively coupled to the first sensor module and the second sensor module through communication links, the computing device configured to calculate, based on the orientation of the forearm, a position of the forearm, and the orientation of the hand, an orientation of the upper arm.

Abstract: A system includes a computing device having one or more processors and a plurality of sensor modules in electronic communication with the computing device via a communication module of at least one of the plurality of sensor modules. The plurality of sensor modules each include a housing and an inertial measurement unit disposed in the housing. A first of the plurality of sensor modules includes a sticky pad attached to the housing. The sticky pad has a sticky surface configured to be sticking to a user to attach the first of the plurality of sensor modules to the user.

Abstract: A computing system having a plurality of sensor modules configured to be attached to a user. At least a first subset of the sensor modules each has an inertial measurement unit; and at least a second subset of the sensor modules each has one or more biological response sensors. The computing system further includes a computing device in communication with the sensor modules. The computing device is configured to control an application based on motion data of the user measured by inertial measurement units in the sensor modules and biological responses determined by sensor modules.