Abstract: A method for transmitting data from a MWD system at the BHA of a drill string may include transmitting the data in a MWD signal from the MWD system. The MWD signal may be modulated at a position closer to the surface onto a mud pulse modulated signal. The mud pulse modulated signal may be generated by a downhole friction reducing device. The downhole friction reducing device may include a mud motor. The mud motor may create pressure pulses based on its speed of rotation. The downhole friction reducing device may include a modulating valve. The modulating valve may be electromechanically or mechanically operated. The modulated signal may be detected at the surface by a receiver using one or more pressure or flow sensors. The receiver may use one or more harmonics of the modulated signal to receive the data.

Abstract: A fluorescence detection system includes a light source for coupling with a mobile device and software, having machine readable instructions loadable into memory of the mobile device and executable by a processor of the mobile device, capable of: activating the light source in coordination with capturing one or more images using a camera of the mobile device; analyzing an image captured with the light source on with an image captured with the light source off, to detect a shift of intensity within a predetermined color range within the images; and identifying and authenticating objects by measuring the intensity shift within the images.

Abstract: A bracket for attachment to an elongate member, comprising an inner portion, the inner surface of which conforms, in use, to an outer surface of the elongate member, said elongate member defining a longitudinal axis and an outer portion comprising a clamping means operable to clamp the outer portion to the inner portion such that the outer portion at least partially surrounds the inner portion, wherein the inner portion is shaped such that, in use, the outer portion may be clamped to the inner portion at a plurality of orientations about an axis orthogonal to the longitudinal axis.

Abstract: A device for sealing or baffling a cavity comprising a first attachment portion, a second attachment portion opposing the first attachment portion and an elastic portion located in between the first and second attachment portions so that the length of the elastic portion can be modified during installation.

Abstract: Optical frequency domain reflectometry (OFDR) circuitry to perform tasks on an optical fiber to generate calibration or correction data for calibrating or correcting a reference OFDR data set. A segmented technique is used which permits precise and accurate determination of the correction data for even initial and long fiber lengths. Correction information for each segment is stitched together to generate the correction data for the fiber.

Abstract: A laser projection device for attachment to a bicycle, the device comprising a laser light source operable to emit a beam of laser light in a first direction, a mirror, a diffractive optical element, the arrangement being such that, in use, a beam of laser light emitted by the laser light source is reflected by the mirror through the diffractive optical element and emitted from the device in a second direction, said second direction being non-parallel to said first direction.

Abstract: A method includes coupling a strain gauge to a tubular member, and positioning the tubular member in the wellbore such that the tubular member is placed under bending stress by a curvature or deviation in the wellbore. The method also includes measuring bend on the tubular member with the strain gauge in at least one plane and determining one or more of the magnitude or orientation of the curvature of the wellbore based on an output of the strain gauge.

Abstract: A sonde based antenna is used for communication within a wellbore. The sonde based antenna may include a toroidal antenna positioned about a conducting element. The sonde may be positionable within a gap sub. The sonde may be electrically connected to the first and second tubulars of the gap sub such that the tubulars are electrically coupled by the conducting element and are otherwise electrically insulated. The sonde may include a first and second structural member, the first and second structural members being electrically insulated except by the conducting element. The first and/or second structural element may extend through and/or around the toroidal antenna to, for example, add structural rigidity to the sonde.

Abstract: One aspect is a flight control system for a rotary wing aircraft including a main rotor system and an elevator control system. A flight control computer of the flight control system includes processing circuitry configured to execute control logic. The control logic includes an inverse plant model that produces a main rotor feed forward command based on a pitch rate command, and a load alleviation control filter configured to reduce loads on a main rotor system and produce an elevator command for an elevator control system. A transformed elevator command filter produces a main rotor pitch adjustment command based on the elevator command, and a main rotor command generator generates an augmented main rotor feed forward command for the main rotor system based on the main rotor feed forward command and the main rotor pitch adjustment command.

Abstract: Embodiments are directed to obtaining data from a plurality of sensors located on a rotorcraft, wherein a first plurality of the sensors is associated with a hub of the rotorcraft and a second plurality of the sensors is associated with blades of the rotorcraft, processing the data to isolate blade dynamics using the data from the sensors associated with the blade from rotorcraft maneuvering dynamics using the data from the sensors associated with the hub, obtaining at least one parameter associated with the blade dynamics based on the processing, and analyzing the at least one parameter to control at least one of the rotorcraft and the blades.

Abstract: A rotor state sensor system is provided for use with a rotor including a hub, a hub arm and a blade coupled to the hub by the hub arm. The sensor system includes sensors disposed on the hub arm to define a first plane, which emit emissions and receive reflected emissions, and which generate a signal according to the received reflected emissions, reflector plates disposed on the blade which define a second plane at locations where the emissions from the sensors are incident on the reflector plates and from which the reflected emissions are reflected towards the sensors and a computing device which receives the signal from the sensors, determines relative orientations of the first and second planes according to the received signal and determines a condition of the rotor based on the determined relative orientations.

Abstract: A method may include providing one or more telemetry transmission systems, the one or more transmission systems comprising one or more receivers and one or more transmitters. The method may also include transmitting a first synchronization sequence from the one or more telemetry transmission systems, the first synchronization sequence transmitted in a first channel, and the first synchronization sequence being at least a portion of a first telemetry signal. In addition, the method may include transmitting a second synchronization sequence the one or more telemetry transmission systems, the second synchronization sequence transmitted in a second channel, and the second synchronization sequence being at least a portion of a second telemetry signal. The first and second synchronization sequences may be transmitted simultaneously or at a predetermined time difference.

Abstract: Systems and methods are provided for presenting a picture-in-picture (PIP) window on a television or other display generated by a set-top box (STB) or other video receiver. The picture-in-picture window is presented in conjunction with a navigation feature on the display. A two-dimensional input associated with the navigation feature is received from a remote control having a touchpad or other two-dimensional input device. The picture-in-picture window on the display is appropriately adjusted in response to the two-dimensional input.

Abstract: Optical frequency domain reflectometry (OFDR) circuitry to perform tasks on an optical fiber to generate calibration or correction data for calibrating or correcting a reference OFDR data set. A segmented technique is used which permits precise and accurate determination of the correction data for even initial and long fiber lengths. Correction information for each segment is stitched together to generate the correction data for the fiber.

Abstract: Embodiments are directed to generating, by a processing device, a feedback command for an aircraft based on a reference input and an output response of the aircraft, and analyzing, by the processing device, the feedback command to allocate control to a plurality of control surfaces over a plurality of separate frequency bands.

Abstract: An aircraft is provided and includes one or more main rotors, one or more and propellers including blades that are rotatable about a rotational axis, a pitch of each of the blades being controllable, and a flight control computer disposed to control the pitch of each of the blades to reduce propeller blade pitch angles in an event of an engine failure.

Abstract: A control system for a rotor assembly includes a plurality of sensors configured to detect a lead-lag rate of each rotor blade of a plurality of rotor blades rotatable around a shaft and a flight control computer configured to generate lead-lag compensation signals based on the detected lead rate and lag rate of each rotor blade to control each rotor blade.

Abstract: This invention relates to a method of projecting laser light onto a road surface from a vehicle. It also relates to an apparatus for projecting laser light onto a road surface from a vehicle. Said apparatus may be a stand-alone device mounted on a vehicle, or it may be integrally formed with a vehicle.

Abstract: A customer service system is described that uses a remote device diagnostic system to improve a customer's experience during a customer service call. Mobile device operating system application programming interfaces provide access to resources on a mobile device allowing an external customer service system to access device information. The customer service system utilizes a combination of application programming interfaces and a device management protocol to provide remote device diagnostics during a customer service call. For devices that support device management protocol, the customer service system uses application programming interfaces for retrieval of device parameters and uses device management for device parameter configuration. For devices that do not support device management, the customer service system uses application programming interfaces for device parameter retrievals, but does not provide capabilities for remote device parameter configuration.