Abstract: Systems are provided for optimizing system overhead when handling multiple input streams of sensor data is configured to identify a set of sensors that are configured to communicate sensor data to the computer system. The systems are configured to receive sensor data from each sensor within the set of sensors and to categorize the sensor data received from each sensor within the set of sensors. Additionally, the systems are configured to identify an overhead attribute associated with each sensor within the set of sensors and to adjust a state of at least one sensor within the set of sensors based upon both a category and an overhead attribute associated with each of the sensors.

Abstract: Systems are provided for optimizing system overhead when handling multiple input streams of sensor data is configured to identify a set of sensors that are configured to communicate sensor data to the computer system. The systems are configured to receive sensor data from each sensor within the set of sensors and to categorize the sensor data received from each sensor within the set of sensors. Additionally, the systems are configured to identify an overhead attribute associated with each sensor within the set of sensors and to adjust a state of at least one sensor within the set of sensors based upon both a category and an overhead attribute associated with each of the sensors.

Abstract: In a head-mounted display device, one or more electromagnetic sensors are provided to improve both head tracking and surface mapping. For head tracking, velocity data provided by the electromagnetic sensors is used to replace the error-prone acceleration data provided by inertial measurement units and to reduce the reliance on tracking cameras. Such replacement results in more accurate and less computationally expensive orientation and position calculations. For surface mapping, distance data provided by the electromagnetic sensors is used to replace less accurate distance data provided by depth cameras, which results in more accurate three-dimensional meshes. Other advantages of electromagnetic sensors include object detection and/or hazard detection, which may improve the safety of head-mounted display devices.

Abstract: Systems are provided for optimizing system overhead when handling multiple input streams of sensor data is configured to identify a set of sensors that are configured to communicate sensor data to the computer system. The systems are configured to receive sensor data from each sensor within the set of sensors and to categorize the sensor data received from each sensor within the set of sensors. Additionally, the systems are configured to identify an overhead attribute associated with each sensor within the set of sensors and to adjust a state of at least one sensor within the set of sensors based upon both a category and an overhead attribute associated with each of the sensors.

Abstract: Systems are provided for optimizing system overhead when handling multiple input streams of sensor data is configured to identify a set of sensors that are configured to communicate sensor data to the computer system. The systems are configured to receive sensor data from each sensor within the set of sensors and to categorize the sensor data received from each sensor within the set of sensors. Additionally, the systems are configured to identify an overhead attribute associated with each sensor within the set of sensors and to adjust a state of at least one sensor within the set of sensors based upon both a category and an overhead attribute associated with each of the sensors.

Abstract: An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns.

Abstract: An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns.

Abstract: An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns.

Abstract: A control system for controlling individual mirrors in a MEMS-based optical switching fabric is presented. The control system includes a position sensitive detector positioned to receive a control beam reflected from individual mirrors of a first mirror array. In some embodiments, the control beam can be time-multiplexed with a calibration beam. The position of the control beam corrected in response to the position of the calibration beam can be compared with a position calculated on the port assignment of the individual mirrors in order to provide feedback to a feed-back based control system for the individual mirrors.

Abstract: A control system for controlling individual mirrors in a MEMS-based optical switching fabric is presented. The control system includes a position sensitive detector positioned to receive a control beam reflected from individual mirrors of a first mirror array. In some embodiments, the control beam can be time-multiplexed with a calibration beam. The position of the control beam corrected in response to the position of the calibration beam can be compared with a position calculated on the port assignment of the individual mirrors in order to provide feedback to a feed-back based control system for the individual mirrors.