Abstract: Embodiments are related to a system with a headset capable of monitoring psychomotor performance of a user of the headset based on eyelid tracking information. The headset includes a sensor assembly coupled to a frame of the headset, and a transceiver coupled to the sensor assembly. The sensor assembly is configured to track an eyelid of an eye of the user and capture eyelid tracking information. The transceiver is configured to obtain the eyelid tracking information from the sensor assembly and communicate the eyelid tracking information to a secondary device coupled to the headset for processing the eyelid tracking information and determination of sleep information for the user based in part on the processed eyelid tracking information.

Abstract: An event camera system for pupil detection may include a camera assembly and a controller, and may also include one or more off-axis light sources. The camera assembly may include one or more infrared (IR) light sources and an event camera. The one or more IR light sources are configured to emit pulses of IR light along an optical path toward an eyebox. The IR light is reflected from an eye in the eyebox, and the reflected light propagates back along the optical path toward the event camera for detection. The controller is configured to determine an orientation of the eye using data output from the event camera.

Abstract: A device includes a camera assembly and a controller. The camera assembly is configured to capture images of both eyes of a user. Using the captured images, the controller determines a location for each pupil of each eye of the user. The determined pupil locations and captured images are used to determine eye tracking parameters which are used to compute values of eye tracking functions. With the computed values and a model that maps the eye tracking functions to gaze depths, a gaze depth of the user is determined. An action is performed based on the determined gaze depth.

Abstract: An apparatus is disclosed for N-plexer filtering for coupled antennas. In example implementations, an apparatus includes a first antenna, a second antenna, a first receiver unit tuned to a first frequency band, and a second receiver unit tuned to a second frequency band. The apparatus also includes multiple antenna feed lines. A first antenna feed line is coupled between the first antenna and the first receiver unit. A second antenna feed line is coupled between the second antenna and the second receiver unit. The second antenna feed line comprises an N-plexer that includes multiple paths. A first path is coupled to the second antenna. A second path is coupled to the second receiver unit and includes a resonator configured to cause the first frequency band to be reflected.

Abstract: A clinical assessment tool coupled to a walking aid for enhancing a therapist's observation-based gait assessment with use of additional objective and quantitative data such as acceleration, angular velocity, and applied forces. The assessment tool facilitates appropriate assistive gait device prescription, provides patients and therapists feedback during gait training, and reduces wrist and shoulder injuries with walking aid usage. The assessment tool is configured to detect timing and speed of walking aid, placement, angular acceleration of the walking aid, and amounts of weight borne on the walking aid.

Abstract: An apparatus is disclosed for N-plexer filtering for coupled antennas. In example implementations, an apparatus includes a first antenna, a second antenna, a first receiver unit tuned to a first frequency band, and a second receiver unit tuned to a second frequency band. The apparatus also includes multiple antenna feed lines. A first antenna feed line is coupled between the first antenna and the first receiver unit. A second antenna feed line is coupled between the second antenna and the second receiver unit. The second antenna feed line comprises an N-plexer that includes multiple paths. A first path is coupled to the second antenna. A second path is coupled to the second receiver unit and includes a resonator configured to cause the first frequency band to be reflected.

Abstract: For remotely operated vehicles (ROV) deployed subsea, communications between an ROV and a system remote from the ROV may use a remotely operated vehicle control communication system to achieve simultaneous and/or discrete data communications at two differing data transmission speeds using two differing data protocols over a common signal transmission pathway configured for use subsea at the first data transmission speed and the second data transmission speed, either separately or concurrently.

Abstract: An apparatus includes a radio-frequency (RF) path that includes an antenna tuner. The apparatus also includes calibration circuitry coupled to the antenna tuner. The calibration circuitry is configured to selectively isolate an antenna from a component of the RF path.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In embodiments, the connectors are use to couple a power source to a power receptor.

Abstract: A programmable fuse system provides under-voltage/short-circuit protection, and comprises an electrical circuit sensor operatively in communication with a predetermined set of electrical circuits; a controller operatively in communication with the electrical circuit sensor, the controller comprising active logic, memory, and data representing a set of characteristic current/trip time curves; and one or more programmable fuses operative to completely disconnect a predetermined electrical circuit of the set of electrical circuits on detection of a fault, without the need to replace a programmable fuse and without reliance on any small current to maintain its protection, and to remain completely disconnected until commanded to turn back on.

Abstract: An apparatus includes a radio-frequency (RF) path that includes an antenna tuner. The apparatus also includes calibration circuitry coupled to the antenna tuner. The calibration circuitry is configured to selectively isolate an antenna from a component of the RF path.

Abstract: A clinical assessment tool coupled to a walking aid for enhancing a therapist's observation-based gait assessment with use of additional objective and quantitative data such as acceleration, angular velocity, and applied forces. The assessment tool facilitates appropriate assistive gait device prescription, provides patients and therapists feedback during gait training, and reduces wrist and shoulder injuries with walking aid usage. The assessment tool is configured to detect timing and speed of walking aid, placement, angular acceleration of the walking aid, and amounts of weight borne on the walking aid.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In embodiments, the connectors are use to couple a power source to a power receptor.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In an embodiment, one connector comprises a voltage comparator which comprises a hysteresis circuit adapted to be centered at a predetermined no pulse voltage for use in data transmission.

Abstract: For remotely operated vehicles (ROV) deployed subsea, communications between an ROV and a system remote from the ROV may use a remotely operated vehicle control communication system to achieve simultaneous and/or discrete data communications at two differing data transmission speeds using two differing data protocols over a common signal transmission pathway configured for use subsea at the first data transmission speed and the second data transmission speed, either separately or concurrently.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In embodiments, no hysteresis circuit is required for data transmission.

Abstract: A printing device (and associated method) comprises a carrier supply, one or more tubes operatively connected to the carrier supply, one or more developer stations operatively connected to the tubes, and at least two sensors connected to each of the tubes. The tubes supply a pulse of the carrier material (“slug”) from the carrier supply to the developer stations. The sensors are positioned a known distance apart along a length of the tubes. The sensors detect the slug of the carrier material passing in the tubes. The processor determines the slug speed based on the timing difference of when the different sensors detect the slug. The processor determines the size of the slug based on the slug speed and determines the dispense rate of the carrier supply based on the size of the slug.

Abstract: A printing device (and associated method) comprises a carrier supply, one or more tubes operatively connected to the carrier supply, one or more developer stations operatively connected to the tubes, and at least two sensors connected to each of the tubes. The tubes supply a pulse of the carrier material (“slug”) from the carrier supply to the developer stations. The sensors are positioned a known distance apart along a length of the tubes. The sensors detect the slug of the carrier material passing in the tubes. The processor determines the slug speed based on the timing difference of when the different sensors detect the slug. The processor determines the size of the slug based on the slug speed and determines the dispense rate of the carrier supply based on the size of the slug.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In an embodiment, one connector comprises a voltage comparator which comprises a hysteresis circuit adapted to be centered at a predetermined no pulse voltage for use in data transmission.

Abstract: The disclosed couplers operate in a “near field” mode, meaning energy, whether used to transmit data or power, is transferred through magnetic induction using a ?i/?t circuit (meaning a change in current over a change in time), such as by using inductive transmission and receive coils in which resistors and/or other components such as diodes are placed into series and/or in parallel with the coils and used to control the shape of the pulse, e.g. its voltage and/or frequency. In embodiments, no hysteresis circuit is required for data transmission.