Abstract: Disclosed herein is a first-person view (FPV) headset comprising a shell and a fan plate coupled to the shell, wherein the fan plate comprises an attachment point configured to receive a headset accessory. The attachment point may comprise a hinge mount and/or a quick-release connector (e.g., comprising a pin, a screw, a button, a magnet). The attachment point may include an electrical connector for power and/or data. Also disclosed are accessories (e.g., an antenna, an antenna mount, a digital video receiver) with physical features that are complementary to the attachment point, thereby enabling them to be attached to the FPV headset.

Abstract: Purifying target biomolecules, such as nucleic acids or proteins, from a biological source is a time intensive process and is typically performed by a skilled technician or scientist owing to the highly technical nature of the work. Systems, devices, and methods disclosed herein enable the automated bioprocessing and purification of target biomolecules from a biological source. For example, an instrument and disposable cartridge are provided for automatedly isolating and purifying nucleic acids (such as plasmid DNA from a bacterial culture) or for isolating protein from any biological sample. Such an exemplary instrument and cartridge can work in concert to timely release, mix, and move the target biomolecule and various reagents and buffers through a target biomolecule purification process, resulting in a purified target biomolecule with less manual oversight than traditional approaches.

Abstract: Disclosed herein are battery-free charging systems for wireless headphones that have at least one proprietary electrical contact provided to charge an on-board power source of the wireless headphone. The battery-free charging system comprises a cable having a first end and a second end, a headphone socket coupled to the first end of the cable, a connector coupled to the second end of the cable, the connector for connecting the battery-free charging system to an external power source, and circuitry coupled to the headphone socket and to the connector. The headphone socket is configured to receive the wireless headphone, to couple the at least one proprietary electrical contact to the external power source, and to allow continued use of the wireless headphone while charging. The circuitry is configured to detect an orientation of the wireless headphone within the headphone socket and provide a charging signal appropriate for the detected orientation.

Abstract: Disclosed herein are systems for providing virtual reality or mixed reality experiences to riders of a waterslide. In some embodiments, the system comprises a plurality of beacons or markers disposed along the waterslide, and a waterproof virtual reality (VR) headset for presenting virtual reality or mixed reality content to a person wearing the waterproof VR headset and riding the waterslide, wherein each of the plurality of beacons or markers is configured to be detectable to facilitate coordinated presentation of the virtual reality or mixed reality content to the person wearing the waterproof VR headset and riding the waterslide based at least in part on a location of the person along the waterslide.

Abstract: Disclosed herein are head-mounted displays comprising a display screen and an optics block. The optics block is configured to present, at a time instant, to a left eye of a user of the head-mounted display apparatus, a first shifted version all of an image generated by the display screen. The first shifted version of the image has a first perceived center location that differs from the center of the display screen. The optics block is also configured to present, at the time instant, to a right eye of the user of the head-mounted display apparatus, a second shifted version of the image generated by the display screen, the second shifted version of the image having a second perceived center location that differs from the center of the display screen and that differs from the first perceived center location.

Abstract: The present invention is directed to devices, systems and methods for coordinating water-related experiences with virtual reality content. In one aspect of the present invention, a method of providing a virtual reality experience to a rider moving along the surface of water is provided. The method includes the following steps: providing a headset to the rider, wherein the headset is placed over the rider's eyes; providing a surface of water along which the rider can travel; collecting data on the rider's acceleration, velocity or orientation through interaction of the headset with signals generated next to the surface of the water along which the rider travels; using the data to calculate one or more values that are used to coordinate virtual reality content with the rider's position along the water surface; presenting the virtual reality content to the rider through the headset, thereby providing a virtual reality experience to the rider.

Abstract: A software tool assists airline dispatchers and other professionals in management of winter weather events at airports. The flight awareness collaboration tool (FACT) may gather pertinent weather information, air traffic information, airport information, and any other suitable information onto one display screen. FACT can be used by airline dispatchers to manage the airline fleet prior to during the day of a winter weather event, and may have built-in automation tools that can predict the impact of winter weather on airport capacity. FACT may be designed to support collaboration between the airline dispatcher, the air traffic control tower, the airport authority, and de-icing operators on the ground.

Abstract: Disclosed herein are unmanned aerial vehicles (UAVs). Some UAVs include a vertically-mounted printed circuit board (PCB). The UAVs have yaw, pitch, and roll axes. The UAVs comprise a plurality of propellers, each of the plurality of propellers configured to rotate about a respective one of a plurality of axes of rotation; a base assembly coupled to each of the plurality of propellers; and a PCB coupled to the base assembly. A surface of the PCB lies in a plane defined by the yaw axis and the roll axis, and no portion of the PCB intersects any axis of rotation of any propeller of the unmanned aerial vehicle. The PCB may have a non-rectangular shape, such as the shape of a shark. Some UAVs include a PCB comprising a mechanical feature configured to engage with a peripheral or a peripheral subassembly.

Abstract: A method of fabricating a superlattice structure requires that atoms of a first III-V semiconductor compound be introduced into a vacuum chamber such that the atoms are deposited uniformly on a substrate. Atoms of at least one additional III-V compound are also introduced such that the atoms of the two III-V compounds form a repeating superlattice structure of alternating thin layers. Atoms of a surfactant are also introduced into the vacuum chamber while the III-V semiconductor compounds are being introduced, or immediately thereafter, such that the surfactant atoms act to improve the quality of the resulting SL structure. The surfactant is preferably bismuth, and the III-V semiconductor compounds are preferably GaSb along with either InAs or InAsSb; atoms of each material are preferably introduced using molecular beam epitaxy. The resulting superlattice structure is suitably used to form at least a portion of an IR photodetector.

Abstract: A display device is provided that comprises a liquid crystal display panel (2) for displaying an image by spatial light modulation. The image is represented by a plurality of image elements each having an image data value (7). The display device further comprises a display controller (1) arranged to determine a signal voltage to be applied to the panel (2) for each image element in dependence upon its image data value (7) and a secondary data value (8) for the element, there being a predetermined mapping between the data values and the signal voltage. The secondary data values (8) are arranged to vary across the image so as to introduce variations in luminance as a result of the mapping. The mapping and secondary data values (8) are mutually arranged to take account of the signal voltage to on-axis luminance response of the panel (2) so that the luminance variations introduced on-axis tend to balance locally through spatial averaging to, and hence would not be perceivable by, an on-axis viewer (3).

Abstract: A structure comprised of an InAsSb layer adjacent to a GaSb layer, with the adjacent InAsSb and GaSb layers repeating to form a superlattice (SL). The structure is preferably an unstrained SL, wherein the composition of the InAsSb layer is InAs0.91Sb0.09; the InAs0.91 Sb0.09 layers are preferably lattice-matched to the GaSb layers. The SL structure is preferably arranged such that the Sb component of the InAsSb layers reduces the strain in the SL structure so that it is less than that found in an InAs/GaSb Type-II Strained Layer Superlattice (SLS). The present SL structure is suitably employed as part of an infrared photodetector.

Abstract: A multiple depth display provided for displaying images at different depths comprises a single display device (61), for displaying all of the images. An optical system (62, 63, 64) is disposed in front of the display device (61). The optical system comprises first and second spaced-apart partial reflectors (62, 63) and polarization optics (64) for providing first and second light paths for first and second images or sequences of images displayed by the device (61). The first light path (65) comprises partial transmission through the first reflector (62), partial reflection from the second reflector (63), partial reflection from the first reflector (62), and partial transmission through the second reflector (65) towards a viewing region.

Abstract: A method of processing image data for display by a display panel of a display device is provided. The method comprises receiving main image pixel data representing a main and side image pixel data representing a side image. In a first processing step, a mapping is performed of the pixel data to signals used to drive the display panel. The mapping is arranged to produce an average on-axis luminance which is dependent mainly on the main image pixel data and an average off-axis luminance which is dependent at least to some extent on the side image pixel data. In a second processing step, the received side image pixel data are processed to emphasize at least one feature of the side image which might otherwise be perceived by a viewer as being de-emphasized in the side image displayed off axis as a result of the first processing step.

Abstract: A liquid delivery apparatus for the intrathecal delivery of one or more medications to a patient is disclosed. The liquid delivery apparatus generally includes a liquid reservoir, a liquid metering unit fluidly connected to the liquid reservoir, and a catheter delivery tube fluidly connected to the liquid metering unit. Preferably, the liquid delivery apparatus includes two or more liquid reservoirs. In various embodiments, the liquid reservoir includes a deformable balloon and a compressive sleeve spring as a pressure source, the liquid metering unit is a piezoelectrically actuated microvalve, and/or diagnostic sensors are included in the apparatus. The disclosed apparatus are compact, volume-efficient, energy-efficient, capable of delivering accurate fluid volumes, and address problems associated with multi-medication therapies. Methods of operating the liquid delivery apparatus are also disclosed.

Abstract: A liquid crystal device comprises an active matrix substrate (6) and a counter-substrate (7) provided with homeotropic alignment surfaces (11). A layer of nematic liquid crystal material is provided between the alignment surfaces (11) so as to form a vertically aligned nematic device. The substrates (6, 7) carry a pixel electrode arrangement and a counter-electrode arrangement which define a plurality of pixel regions. Each of least some of these regions has a pixel electrode (13), which may be split into two halves, and a counter-electrode (8) which are arranged to apply an electric field for controlling the liquid crystal director (12) out-of-plane tilt angle. A further electrode (14), for example in the form of a plurality of parallel fingers, cooperates with at least one of the other electrodes (8, 13) to apply a second electric field for controlling the director in-plane azimuth angle. Such a device may be used, for example, as a switchable public/private display.

Abstract: A display device is provided that comprises a liquid crystal display panel for displaying an image by spatial light modulation, and circuitry for switching liquid crystal in the panel between having a first configuration in a first mode to cause an image displayed using the panel to be discernible from a wide range of viewing angles, and having a second configuration in a second mode to cause an image displayed using the panel to be discernible substantially only from within a narrow range of viewing angles. Several types of display panel to achieve such in-panel switching between public and private viewing modes are disclosed.

Abstract: A single view display of reduced power consumption is provided. The display comprises a display device for displaying the single view and an optical system for concentrating light modulated by the single view into a reduced angular range. A viewer direction determining system determines the direction of a viewer relative to the display and controls the display device and the optical system so that the angular range includes the direction of the viewer.

Abstract: An ion mobility spectrometer includes a plurality of substrates defining a measurement region for receiving a singular laminar gas flow without any carrier or sheath gas. The measurement region includes an ionization region that is continuous with a detection region. An ionizing electrode, which may include a plurality of asymmetric electrodes, produces ions in the gas sample within the ionization region. The ionizing electrode may apply a time varying voltage to the gas sample to generate a time dependent ion production. A field generating electrode generates an electric field to deflect the ions in the gas sample, and a detection electrode array detects the deflected ions within the detection region. A controller is configured to determine ion species based on the detection of ions by the detection electrode array.