The Boeing Company

Theboeing Company

David Keith Mefford

Robert Alan Smith

Aaron Y Mosher

John Dalton Williams

Hong Hue Tat

Yuan-Jye Wu

John Rubrecht Lowell

John E Rogers

Kevin T Slattery

Colin Anthony Minor Diehl

Anguel Nikolov

Steve B Pickard

Aaron Frost Markowitz

Chip technology for fabricating ultra-low-noise, high-stability optical devices for use in an optical atomic clock system. The proposed chip technology uses diamond material to form stabilized lasers, frequency references, and passive laser cavity structures. By utilizing the exceptional thermal conductivity of diamond and other optical and dielectric properties, a specific temperature range of operation is proposed that allows significant reduction of the total energy required to generate and maintain an ultra-stable laser. In each configuration, the diamond-based chip is cooled by a cryogenic cooler containing liquid nitrogen.

Diamond-based high-stability optical devices for precision frequency and time generation

An additive manufacturing system includes a print head, a first light source array, a second light source array, and a controller. The print head includes a first rotatable reflector and a second rotatable reflector. The first light source array is configured to direct multiple first light beams toward a build medium via the first rotatable reflector. The second light source array is configured to direct multiple second light beams toward the build medium via the second rotatable reflector. The controller is coupled to the print head, the first light source array, and the second light source array. The controller is configured to control activation of the first light beams and activation of the second light beams to selectively fuse portions of the build medium to form one or more objects from the build medium.

Additive manufacturing using light source arrays to provide multiple light beams to a build medium via a rotatable reflector

A pressure sensing system and method for an engine of an aircraft include a transceiver assembly coupled to a portion of the engine, and a pressure sensor assembly coupled to a fan blade of the engine. The transceiver assembly is configured to transmit a first signal at a first frequency and a second signal at a second frequency that differs from the first frequency. The pressure sensor assembly is configured to receive the first signal and the second signal and transmit a third signal at a third frequency that is a difference between the first frequency of the first signal and the second frequency of the second signal. The transceiver assembly is configured to receive the third signal at the third frequency. A pressure in relation to the engine is determined based on the third signal.

Pressure sensor assemblies and methods of detecting pressure within an engine

Certain aspects of the present disclosure provide a method and apparatus for image sensing. Embodiments include a first plurality of light-sensing elements arranged in a first plurality of rows and a first plurality of columns in a first image sensing plane. Embodiments include a first lens element disposed within a position in a central row of the first plurality of rows and in a central column of the first plurality of columns. Embodiments include a second plurality of light-sensing elements arranged in a second plurality of rows in a second image sensing plane, different from the first image sensing plane. In certain embodiments, the first lens element is configured to redirect incident light reflected from a destination onto the second plurality of light-sensing elements in the second image sensing plane for use in guiding a steerable object toward the destination.

Multi-plane image sensors for high resolution destination detection and tracking

A method of detecting a compound in a material sample is presented. A transformation is generated from a set of IR spectra of a set of identified compounds, in which the compound is one of the set of identified compounds. The transformation is applied to an IR spectrum of the material sample to form a transformed IR spectrum. A decomposition is applied to the transformation. Results indicative of a presence or an absence of the compound are generated based on an output of the decomposition.

Detection of compounds in material samples utilizing a transformation and subsequent decomposition

A dual sensor, includes: one or more analyte detectors, each having an analyte-specific binding site for interacting with a specific analyte; an optical source generating a first frequency comb spectrum directed to an environment to be scanned, the first frequency comb spectrum having multiple optical frequencies at a first frequency range; an optical spectrum analyzer analyzing an optical spectrum resulting from interaction of the first frequency comb spectrum with the environment; and a controller that is configured, where an analyte detector indicates presence of a specific analyte, to adjust the first frequency comb spectrum to increase sensitivity for detecting the specific analyte.

Dual sensor and method for detection of an analyte gas

An optical detection method and device are provided. The optical detection method includes directing an optical beam toward a target; selecting a first test sensor from among a plurality of test sensors to compare with radiation received from the target, wherein the first test sensor comprises a first test chemical; receiving a reflected or scattered optical beam from the target; comparing a first spectrum from the first test chemical with a spectrum of the reflected or scattered optical beam that was received using a linear detector array; determining a likely chemical from the target based on the comparing using a hardware processor; and providing an output based on the determining.

Optical detection system and method

A method for classifying at least one object of interest in a video is provided. The method includes accessing, using at least one processing device, a frame of the video, the frame including at least one object of interest to be classified, performing, using the at least one processing device, object detection on the frame to detect the object of interest, tracking, using the at least one processing device, the object of interest over a plurality of frames in the video over time using a persistent tracking capability, isolating, using the at least one processing device, a segment of the frame that includes the object of interest, classifying, using the at least one processing device, the object of interest by processing the segment using deep learning, and generating an output that indicates the classification of the object of interest.

Systems and methods for object tracking and classification

Systems, methods, and apparatus for converting serial video data for a graphics processing unit (GPU) interface are disclosed. In one or more embodiments, a disclosed method comprises receiving, by each of a plurality of gigabit multimedia serial link (GMSL) conversion modules, n-bit length serial video data from a plurality of high-resolution cameras respectively. The method further comprises converting, by each of the GMSL conversion modules, the n-bit length serial video data to m-bit length serial GMSL video data, where n is equal to twice m. Also, the method comprises receiving, by a GMSL to camera series interface (CSI) conversion unit, the m-bit length serial GMSL video data from each of the GMSL conversion modules. Further, the method comprises converting, with the GMSL to CSI conversion unit, the m-bit length serial GMSL video data to m-bit length serial CSI video data, which is compatible with the GPU interface.

Multi-camera serial video data conversion for graphics processing unit (GPU) interface

Systems and methods for coded visual markers in a surveillance system. An exemplary system includes a camera to capture images of a secure area, memory to store identifiers for persons that are authorized to be in the secure area, and a processor communicatively coupled with the camera and the memory. The processor analyzes the images to detect a person in the secure area and detects a pattern of a light source at the person. The processor then decodes the pattern of the light source and authorizes the person in the secure area based on a match between the decoded pattern of the light source and an identifier stored in the memory of one of the persons authorized to be in the secure area.

Coded visual markers for a surveillance system

Systems and methods for generating radio frequency signals and/or microwave signals using a tunable optical source. An optical frequency comb including multiple optical components is received or generated based on an optical signal. A subset of optical components is selected from the multiple optical components. A detector array having two or more square law detectors is uniformly illuminated with the subset of optical components. Each square law detector of the detector array outputs an electrical signal having a difference frequency corresponding to a difference in frequency between the subset of optical components. A radio frequency or microwave output signal with a narrow bandwidth centered at a target frequency is generated by coherently summing each of the output signals output by the square law detectors.

RF generation using tunable optical source

A method and apparatus for detecting an energetic material on a surface. Electromagnetic radiation is generated. A beam of the electromagnetic radiation is transmitted from a handheld device towards the surface. Reflected electromagnetic radiation from the beam reflecting off of the surface is detected at the handheld device to generate test data. The test data is analyzed at a base unit that is separate from the handheld device to determine whether the energetic material is present on the surface.

Method and apparatus for detecting energetic materials

A coherent fiber array is used to optically detect a radiometric event. The coherent fiber array has a dome-shaped detection surface and a planar output surface. Optical energy from the radiometric event is detected at the dome-shaped detection surface and transferred to the output surface. The coherent fiber array retains directionality of the radiometric event while transferring the optical energy from the dome-shaped detection surface to the planar output surface.

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Huntsville, AL, United States of America

David Keith Mefford