Abstract: A cooling system for a fuel-cell system onboard a vehicle such as an aircraft in one embodiment employs the latent heat of evaporation of a two-phase coolant to reduce mass and parasitic power requirements of the cooling system. In another embodiment the cooling system has a primary ambient air heat exchanger coolant loop for cooling the fuel-cell system, and a secondary coolant loop comprising a fluid circuit configured to circulate a coolant in thermal contact with a phase-change material (PCM) in thermal contact with the fuel-cell to absorb heat from the fuel-cell. The secondary coolant loop includes a heat pump for cooling the PCM.

Abstract: An integrated hydrogen-electric engine includes a hydrogen fuel-cell; a hydrogen fuel source; an electric motor assembly disposed in electrical communication with the fuel-cell; an air compressor system configured to be driven by the motor assembly, and a cooling system having a heat exchanger radiator in a duct of the cooling system, and configured to direct an air stream including an air stream from the air compressor through the radiator, wherein an exhaust stream from a cathode side of the fuel-cell is fed via a flow control nozzle into the air stream in the cooling duct downstream of the radiator.

Abstract: An article of athletic gear, such as an article of protective athletic equipment (e.g., a leg pad, an arm pad, shoulder pads, a chest protector, or a protective glove), wearable by a user and comprising a core (e.g., comprising protective padding) and a cover that is disposed on the core and comprises synthetic material and a printed image (e.g., a digitally-printed image) on the synthetic material.

Abstract: A lighter-than-air craft including an envelope. A mixture of helium and hydrogen disposed within the envelope. The mixture having a ratio of helium to hydrogen such that the mixture is nonflammable during operating conditions for the lighter-than-air craft. The mixture provides buoyancy for the lighter-than-air craft. A hydrogen fuel cell fluidically coupled with the mixture and configured to utilize the mixture to generate electricity. A propulsion system is coupled to the envelope, and the propulsion system is configured to provide propulsion for the lighter-than-air craft. The propulsion system is electrically coupled with the hydrogen fuel cell and receives electricity generated by the hydrogen fuel cell. The propulsion system is configured to utilize the electricity in providing the propulsion to the lighter-than-air craft.

Abstract: A hydrogen boiloff capture system. The hydrogen boiloff capture system having a cryogenic tank for storing liquid hydrogen. The hydrogen boiloff capture system also includes an intermediate tank fluidically coupled with the cryogenic tank. The intermediate tank is configured to receive hydrogen gas boiloff from the cryogenic tank. The intermediate tank is further configured to provide the hydrogen gas boiloff to a lighter-than-air craft to regulate buoyancy of the lighter-than-air craft. The intermediate tank is also configured to provide the hydrogen gas boiloff to a hydrogen fuel cell coupled to the lighter-than-air craft.

Abstract: A fuel tank heat dissipation system for fuel cell (FC) cooling is disclosed. in one example, at least one FC is in thermal communication with an intermediary heat exchanger. A fuel tank is also in fluid communication with the intermediary heat exchanger. A fluid is used to receive heat from the intermediary heat exchanger and flow along a first fluid path to the fuel tank. A nozzle is used to spray the fluid about an interior surface of the fuel tank, where the spray of the fluid about the interior of the fuel tank allows the fluid to dissipate the heat. A second fluid path from the fuel tank to the intermediary heat exchanger, the second fluid path to return the fluid that has dissipated the heat to the intermediary heat exchanger.

Abstract: A fingerprint sensing device having an image sensing device and configured to detecting fingerprint data of an input object. The image sensing device includes a plurality of lenses, and a plurality of sensing elements. The plurality of sensing elements includes a first sensing element has a field of view associated with a first lens of the plurality of lenses and laterally offset from a center of the first lens, and a second sensing element has a field of view associated with a second lens of the plurality of lens and laterally offset from a center of the second lens. Further, a processing system may be coupled to the image sensing device and operate the image sensing device to acquire fingerprint image to authenticate a user.

Abstract: A leg pad for a hockey goalkeeper playing hockey (e.g., ice hockey) is provided. The leg pad comprises a frontal portion, a medial portion, and a lateral portion respectively configured to be positioned adjacent to a front, a medial side, and a lateral side of a goalkeeper's leg when the leg pad is worn on the leg. The leg pad comprises an outer shell comprising an outer surface of the leg pad, an inner liner for facing the leg, and protective padding disposed between the molded outer shell and the inner liner. The outer shell may comprise molded foam.

Abstract: Disclosed is a device for optical sensing, comprising: a display comprising a transparent substrate and a plurality of light emitters disposed above the transparent substrate; a transparent cover layer disposed above the display, wherein a top surface of the transparent cover layer provides an input surface for sensing an input object; and, an angled filter disposed below the transparent substrate of the display, wherein the angled filter is configured to allow light within a tolerance angle of an acceptance angle to pass through the angled filter, wherein the acceptance angle is centered around a non-zero angle relative to a normal of the input surface.

Abstract: A system and method for an electronic device for imaging a biometric object having structural features of interest is disclosed. The electronic device includes a display including rows of pixel elements, the rows of pixel elements being parallel a first primary direction along a first axis and an optical sensor mounted underneath the display, the optical sensor being parallel to a second primary direction along a second axis. The second axis is rotated at an angle relative the first axis to adjust a moiré pattern outside of a frequency range of the features of interest.

Abstract: An article of athletic gear, such as an article of protective athletic equipment (e.g., a leg pad, an arm pad, shoulder pads, a chest protector, or a protective glove), wearable by a user and comprising a core (e.g., comprising protective padding) and a cover that is disposed on the core and comprises synthetic material and a printed image (e.g., a digitally-printed image) on the synthetic material.

Abstract: This disclosure generally provides an input device that includes a multi-layered capacitive sensor which includes a first layer disposed over a second layer that contains a plurality of sensor electrodes coupled to respective traces. The first and second layers form a capacitive sensing stack where the first layer is between the second layer and a touch surface for interacting with the input object. The first and second layers may be disposed on either the same substrate or different substrates in the stack. In one embodiment, the first layer includes electrically floating electrodes and at least one guard electrode. These components may align with respective components in the second layer. For example, the electrically floating electrodes in the first layer may at least partially cover the sensor electrodes in the second layer.

Abstract: An input device having a plurality of low-visibility sensor electrodes and method for fabricating the same are provided. In one example, an input device includes a display device having an array of pixels and a plurality of sensor electrodes disposed on a viewing side of the display device. At least a first sensor electrode of the plurality of sensor electrodes includes a plurality of spaced apart conductive traces forming a conductive mesh, wherein mesh having a first periodicity defined by intersections of the conductive traces forming the mesh. A terminal portion of one of the conductive traces terminates at an edge of the first sensor electrode and has an attached light occluding element. The attached light occluding element is disposed over a subpixel having the same color as a subpixel which an intersecting trace would lay over when the intersection occurs in an interior region of the sensor electrode.

Abstract: Embodiments of the invention generally provide an input device having a plurality of sensor electrodes that can be configured to be scanned in a first direction or a second direction. The input device includes a set of sensor electrodes and first and second sets of buses. The first buses are oriented in a first direction and the second buses are oriented in a second direction. The input device also includes a set of switching elements that are each configured to couple one of the sensor electrodes to either a bus in the first set of buses or a bus in the second set of buses. These embodiments allow the sensor electrodes to be scanned in a variety of patterns for flexible sensing functionality.

Abstract: A leg pad for a hockey goalkeeper playing hockey (e.g., ice hockey) is provided. The leg pad comprises a frontal portion, a medial portion, and a lateral portion respectively configured to be positioned adjacent to a front, a medial side, and a lateral side of a goalkeeper's leg when the leg pad is worn on the leg. The leg pad comprises an outer shell comprising an outer surface of the leg pad, an inner liner for facing the leg, and protective padding disposed between the molded outer shell and the inner liner. The outer shell may comprise molded foam.

Abstract: A leg pad for a hockey goalkeeper playing hockey (e.g., ice hockey) is provided. The leg pad comprises a frontal portion, a medial portion, and a lateral portion respectively configured to be positioned adjacent to a front, a medial side, and a lateral side of a goalkeeper's leg when the leg pad is worn on the leg. The leg pad comprises an outer shell comprising an outer surface of the leg pad, an inner liner for facing the leg, and protective padding disposed between the molded outer shell and the inner liner. The outer shell may comprise molded foam.

Abstract: A leg pad for a hockey goalkeeper playing hockey (e.g., roller hockey) is provided. The leg pad is wearable on a leg of the hockey goalkeeper to protect the leg. The leg pad comprises a front, a medial side, and a lateral side respectively configured to be positioned adjacent to a front, a medial side, and a lateral side of the leg when the leg pad is worn on the leg. The leg pad comprises protective padding and an outer covering disposed over the protective padding. The leg pad comprises a slider in the medial side of the leg pad for facilitating sliding of the medial side of the leg pad on a playing surface when the leg is moved. The slider may be mounted beneath the outer covering and exposed through an opening of the outer covering to slide on the playing surface.

Abstract: A flexible circuit assembly. The flexible circuit assembly includes a flexible circuit, a substrate of a capacitive-sensing device and an electronic component that are coupled to the flexible circuit. The flexible circuit includes a first portion having a first conductive contact pad, a second portion having a second conductive contact pad, and a third portion disposed between the first portion and the second portion. The flexible circuit is configured to fold at the third portion between the first portion and the second portion so that the first conductive contact pad couples to a first conductor disposed along a first edge of the substrate and the second conductive contact pad couples to a second conductor disposed along a second edge of the substrate of the capacitive-sensing device. The first edge of the substrate of the capacitive-sensing device is non-parallel to the second edge of the substrate of the capacitive-sensing device.

Abstract: A capacitive sensing apparatus includes a plurality of electrically conductive sensing elements that have widths that vary and lengths that traverse a sensing region. The sensing elements include a first sensing element including a first variable-width portion and a second variable-width portion that in combination produce a combined first sensor signal, a second sensing element including a third variable-width portion and a fourth variable-width portion that in combination produce a combined second sensor signal, and a third sensing element including a fifth variable-width portion and a sixth variable-width portion that in combination produce a combined third sensor signal.

Abstract: Systems and methods for detecting a position of an object in a sensing region are disclosed. One system includes a position sensor having an opaque capacitive proximity sensor, a light source, and a light conductor coupled to the light source and at least partially disposed over the opaque sensor, the light conductor configured to transmit at least a portion of the light from the light source to generate driven light effects in the sensing region. The system further includes a processor configured to control production of the light, and a display configured to illustrate a digital representation based on the position. A method includes the steps of sensing a position of an object in the sensing region based on a conductive property of the object, controlling light produced by a light source, and generating driven light effects in the sensing region using at least a portion of the light.