Magic Leap, Inc.

Christopher Lopez

Aly H M Aly

Michael Janusz Woods

Evan Francis Rynk

James William Palmer

Brian Bucknor

Sumanth Murali

Cuthbert Martindale Allen

Humberto Eduardo Garcia

Juan Leopoldo Ballen

Samuel A Miller

Martin Georg Zahnert

Zachary C Nienstedt

Dominik Michael Kasper

Brian Edward Oliver Bucknor

Manel Quim Sanchez Nicuesa

Nathan Yuki Baumli

Emily Elizabeth Mount

Nikola Stan

Andrea Lampart

Rafa Gomez-Jordana Manas

Daniel Roberts

Aly HM Aly

Wearable systems and method for operation thereof incorporating headset and controller localization using headset cameras and controller fiducials are disclosed. A wearable system may include a headset and a controller. The wearable system may alternate between performing headset tracking and performing controller tracking by repeatedly capturing images using a headset camera of the headset during headset tracking frames and controller tracking frames. The wearable system may cause the headset camera to capture a first exposure image an exposure above a threshold and cause the headset camera to capture a second exposure image having an exposure below the threshold. The wearable system may determine a fiducial interval during which fiducials of the controller are to flash at a fiducial frequency and a fiducial period. The wearable system may cause the fiducials to flash during the fiducial interval in accordance with the fiducial frequency and the fiducial period.

Wearable system with controller localization using headset cameras and controller fiducials

Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.

Electromagnetic tracking with augmented reality systems

Systems and methods for adaptive frequency hopping for reducing or avoiding electromagnetic interference between two radios operating in the same radio frequency (RF) band are provided. In one aspect, a host device, which includes first and second wireless radios and a hardware processor, can use adaptive frequency hopping among a plurality of RF channels to reduce interference. The device can control the first wireless radio to establish a first wireless connection with a terminal device via a first subset of channels, determine a set of performance statistics for the channels, and replace at least one of the first subset of the channels with a new channel within the plurality of channels based on the statistics. For example, a channel can be replaced if a packet error rate (PER) exceeds a threshold.

Coexistence interference avoidance between two different radios operating in the same band

Growing community of inventors

Davie, FL, United States of America

Christopher Lopez