Abstract: An invention is disclosed for a real time video analytic processor that embodies algorithms and processing architectures that process a wide variety of sensor images in a fashion that emulates how the human visual path processes and interprets image content. spatial, temporal, and color content of images are analyzed and the salient features of the images determined. These salient features are then compared to the salient features of objects of user interest in order to detect, track, classify, and characterize the activities of the objects. Objects or activities of interest are annotated in the image streams and alerts of critical events are provided to users. Instantiation of the cognitive processing can be accomplished on multi-FPGA and multi-GPU processing hardwares.

Abstract: A LIDAR system that can accommodate both a clear atmosphere and be adaptable to environments in which smoke, dust or other particulates (i.e., a degraded environment) exist in the atmosphere around the target is described. The system operates in two fields of regard: clear view mode (wide field of regard) and a degraded view mode (narrow field of regard). The wide field of regard allows the output laser energy to be concentrated over a large number of detector pixels and thus resulting in high scene scan rate. The narrow field of regard allows concentrating the laser output energy on fewer pixels to compensate for the loss of laser energy due to atmospheric degradation. The combination of the ROIC and LIDAR modes of operation result in a system that is capable of operation under clear and degraded environments.

Abstract: In a method for determining orientation of an object, raw image data of the sky is recorded using a sky polarimeter. One or more of Stokes parameters (S0, S1, S2), degree of linear polarization (DoLP), and angle of polarization (AoP) are calculated from the image data to produce a set of processed images. Last known position and time data of the object are obtained, and a known Sun azimuth and elevation are calculated using the last known position and time data. Roll and pitch of the object are found, and the roll and pitch data are used to find a zenith in the processed images. The yaw/heading of the object is determined using the difference between a polarization angle at the zenith and a calculated Sun azimuth.

Abstract: The invention discloses a data interactive display system and method, which comprises a smart wearable terminal and a display device. The smart wearable terminal includes a first NFC module, a first microprocessor, a first touch screen and a first data interaction module, wherein the first microprocessor is connected with the other three parts respectively. The display device includes a second NFC module, a second microprocessor, a second touch screen and a second data interaction module, wherein the second microprocessor is connected with the other three parts respectively. The first touch screen and the second touch screen achieve real-time synchronization between the displayed data and touch commands through a communication link established by the first data interaction module and the second data interaction module.

Abstract: Methods and apparatus detect events of sleep disordered breathing from an input audio signal such as from a sound sensor. A processor may be configured to receive the audio signal that represents sounds of a user during a period of sleep. The processor determines reliable respiration epochs from the audio, such as on a frame-by-frame basis, that include periods of audible breathing and/or snoring. The processor detects presence of a sleep disordered breathing events, such as hypopnea, apnea, apnea snoring or modulated breathing, in the reliable respiration epoch(s) and generates output to indicate the detected event(s). Optionally, the apparatus may serve as a cost-effective screening device such as when implemented as a processor control application for a mobile processing device (e.g., mobile phone or tablet).

Abstract: Techniques are provided to implement the display of synchronized sensor data and captured video signal. A mobile computing device receives a set of data points from a multi-sensor device. The set of data points may be assigned a timestamp value, obtained from an internal clock within the mobile computing device. Sets of data points and their assigned timestamp values are aggregated into an aggregated sensor dataset that represents the sets of data points over a particular period of time. Concurrent to receiving the sensor data, video frames are received. The video frames with an assigned timestamp value are stored in a video frame dataset that represents video frames over a particular period of time. The aggregated sensor dataset and the video frame dataset are synchronized and combined into a single combined video dataset based upon the assigned timestamp values of the sets of data points and the video frames.

Abstract: An instrumented, swing path adjustable, angle-adjustable batting tee is disclosed that measures both a bat speed and a ball exit velocity as a hitter swings a bat and initiates contact with a ball positioned on the tee. A bat speed radar detector is coupled to the tee and positioned within proximity of the ball set on the tee so that the bat speed radar detector measures the bat speed upon the bat initiating contact with the ball. A ball exit velocity radar is coupled to the tee and positioned within proximity of a ball flight of the ball as it leaves the bat so that the ball exit velocity radar measures the ball exit velocity of the ball in-flight after contact between the bat and the ball. The ball flight is a path that the ball travels after contact between the bat and a baseball or softball.

Abstract: An imaging system includes a housing having a lens that defines a first optical axis. A sensor is within the housing offset from the first optical axis. A digital display is within the housing offset from the first optical axis opposite from the sensor across the first optical axis. A second optical axis is defined between the sensor and the digital display. A polarized beam splitter is within the housing at an intersection of the first and second optical axes to allow a portion of incoming photons to pass and continue along the first optical axis for direct-eye viewing and to redirect another portion of incoming photons to the sensor along the second optical axis.

Abstract: Provided are a traveling wave tube and a high-frequency circuit system such that the product life span of the traveling wave tube operating in multiple modes can be extended while variations in gain and amplification efficiency that accompany switching of the operation modes can be suppressed. The traveling wave tube comprises: an electron gun equipped with a cathode that releases electrons, and a heater that provides the cathode with heat energy for releasing the electrons; a helix causing an RF signal to interact with an electron beam formed from the electrons released by the electron gun; a collector for catching the electron beam emitted by the helix; an anode whereby the electrons released from the electron gun are guided into the helix; and a magnetic field application device for generating a magnetic field in order to change the diameter of the electron beam, said magnetic field application device being supplied with electric power for generating the magnetic field from the outside.

Abstract: A low noise infrared photodetector has an epitaxial heterostructure that includes a photodiode and a transistor. The photodiode includes a high sensitivity narrow bandgap photodetector layer of first conductivity type, and a collection well of second conductivity type in contact with the photodetector layer. The transistor includes the collection well, a transfer well of second conductivity type that is spaced from the collection well and the photodetector layer, and a region of first conductivity type between the collection and transfer wells. The collection well and the transfer well are of different depths, and are formed by a single diffusion.

Abstract: A device for measuring the concentrations of volatile organic compounds (VOCs) in air. The device includes a sample chamber for accepting a sample of air; at least one ionization source for ionizing VOCs in the sample; an ionic liquid trap containing an ionic liquid that captures the ionized VOCs; a circuit for generating a electric current through the device to run the ionization and capture of the ionized VOCs; and a chemical sensor for detecting and measuring concentrations of the VOCs in the sample of air. The device, which may be hand-held, portable, or designed to sit on a bench top, may be used on any animal, including humans.

Abstract: An improved heterostructure for an optoelectronic device is provided. The heterostructure includes an active region, an electron blocking layer, and a p-type contact layer. The p-type contact layer and electron blocking layer can be doped with a p-type dopant. The dopant concentration for the electron blocking layer can be at most ten percent the dopant concentration of the p-type contact layer. A method of designing such a heterostructure is also described.

Abstract: An improved heterostructure for an optoelectronic device is provided. The heterostructure includes an active region, an electron blocking layer, and a p-type contact layer. The p-type contact layer and electron blocking layer can be doped with a p-type dopant. The dopant concentration for the electron blocking layer can be at most ten percent the dopant concentration of the p-type contact layer. A method of designing such a heterostructure is also described.

Abstract: Ultraviolet radiation is directed within an area. Items located within the area and/or one or more conditions of the area are monitored over a period of time. Based on the monitoring, ultraviolet radiation sources are controlled by adjusting a direction, an intensity, a pattern, and/or a spectral power of the ultraviolet radiation generated by the ultraviolet radiation source. Adjustments to the ultraviolet radiation source(s) can correspond to one of a plurality of selectable operating configurations including a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration.

Abstract: A light emitting heterostructure including a partially relaxed semiconductor layer is provided. The partially relaxed semiconductor layer can be included as a sublayer of a contact semiconductor layer of the light emitting heterostructure. A dislocation blocking structure also can be included adjacent to the partially relaxed semiconductor layer.

Abstract: An in-line, impeller type flowmeter having an inlet flow taper section to converge flow to a measurement chamber and an outlet flow taper section after the measurement chamber, and further exhibiting a high turn-down ratio above about 30:1, and being suitable for use with a pipe having a nominal inner diameter no greater than one inch.

Abstract: A gas sensor for measuring the concentrations of gases includes a solid body electrolyte, at least three electrodes, and a closed chamber. The doped platinum includes at least 50% by weight platinum and the remainder includes at least one further element selected from the group of solid body electrolytes. In particular, the doped platinum includes between 0.5% by weight to 15% by weight ZrO2 and the remainder is platinum, or the pure platinum is 100% by weight platinum and the gold alloy comprises at least 50% by weight gold and maximally 50% by weight platinum. In particular, the gold alloy includes approximately 85% by weight gold and approximately 15% by weight platinum or the gold alloy comprises at least gold and platinum at a ratio of 85% gold to 15% platinum.

Abstract: A digitally implemented radio frequency sensor for physiology sensing may be configured to generate oscillation signals for emitting radio frequency pulses for range gated sensing. The sensor may include a radio frequency transmitter configured to emit the pulses and a receiver configured to receive reflected ones of the emitted radio frequency pulses under control of a microcontroller. The received pulses may be processed by the microcontroller to detect physiology characteristics such as motion, sleep, respiration and/or heartbeat. The microcontroller may be configured to generate timing pulses such as with a pulse generator for transmission of radio frequency sensing pulses. The microprocessor may sample received signals, such as in phase and quadrature phase analogue signals, to implement digital demodulation and baseband filtering of the received signals.

Abstract: The invention relates to a majority current assisted detector device, comprising a semiconductor layer of a first conductivity type epitaxially grown on a semiconductor substrate, at least two control regions of the first conductivity type, at least two detection regions of a second conductivity type opposite to the first conductivity type, and a source for generating a majority carrier current in the semiconductor layer between the two control regions, the majority current being associated with an electrical field. The detection regions surround the control regions, thereby forming at least two taps. The device is configured for backside illumination and further comprises a well of the first conductivity type between the two detection regions for insulating the detection regions. The well comprises pixel circuitry elements.

Abstract: Fabrication of a heterostructure, such as a group III nitride heterostructure, for use in an optoelectronic device is described. The heterostructure can be epitaxially grown on a sacrificial layer, which is located on a substrate structure. The sacrificial layer can be at least partially decomposed using a laser. The substrate structure can be completely removed from the heterostructure or remain attached thereto. One or more additional solutions for detaching the substrate structure from the heterostructure can be utilized. The heterostructure can undergo additional processing to form the optoelectronic device.