Abstract: A method of calibrating a first inertial measurement unit (IMU) of a mobile electronic device inserted in a headset includes, when a controller having a second IMU is mounted to the headset: performing a calibration procedure to generate first calibration data for the first IMU and second calibration data for the second IMU; receiving the second calibration data from the controller; determining a difference between the first calibration data and the second calibration data received from the controller; and calibrating the first IMU in accordance with the difference between the first calibration data and the second calibration data. The method further includes, when the controller has been removed from the headset after performing the calibrating, executing a virtual-reality application, comprising generating images based in part on motion data generated by the calibrated first IMU and displaying the images. The motion data corresponds to motions of the mobile electronic device.

Abstract: Handheld controllers are disclosed herein. In one embodiment, the controller includes a main body and a sensor assembly at least partially disposed in the main body. The sensor assembly can include a control surface (e.g., a button) configured to receive at least a portion of a user's finger. A sensor portion can be disposed between the control surface and a rear member. The sensor portion can comprise a foam layer, a backing layer and a sensor layer between the foam layer and the backing layer. The foam layer can be compressed toward the control surface to minimize an air gap between the sensor layer and the control surface.

Abstract: A head-mounted display assembly with a headphone retention mechanism. The head-mounted display assembly includes a display housing, a headphone assembly, a headphone storage region located on the body of the display housing, and a headphone retention mechanism at the headphone storage region. The headphone retention mechanism includes a magnetic element configured to produce a magnetic field that releasably retains the headphone assembly against the headphone storage region when a user positions the headphone assembly in the vicinity of the headphone storage region.

Abstract: A head-mounted display assembly with a headphone retention mechanism. The head-mounted display assembly includes a display housing, a headphone assembly, a headphone storage region located on the body of the display housing, and a headphone retention mechanism at the headphone storage region. The headphone retention mechanism includes a magnetic element configured to produce a magnetic field that releasably retains the headphone assembly against the headphone storage region when a user positions the headphone assembly in the vicinity of the headphone storage region.

Abstract: Handheld controllers are disclosed herein. In one embodiment, the controller includes a main body and a sensor assembly at least partially disposed in the main body. The sensor assembly can include a control surface (e.g., a button) configured to receive at least a portion of a user's finger. A sensor portion can be disposed between the control surface and a rear member. The sensor portion can comprise a foam layer, a backing layer and a sensor layer between the foam layer and the backing layer. The foam layer can be compressed toward the control surface to minimize an air gap between the sensor layer and the control surface.