Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.

Abstract: A plasma generator comprises a radio frequency power source, a coaxial cavity resonator assembly, and a direct current power source. The radio frequency power source provides a voltage supply of radio frequency power having a first ratio of power over voltage. The resonator assembly includes a center conductor coupled to the radio frequency power source, and also includes a virtual short circuit. The direct current power source is connected to the center conductor at the virtual short circuit, and provides a voltage supply of direct current power having a second ratio of power over voltage that is less than the first ratio.

Abstract: A method for detecting a subsurface anomaly at a near-surface depth, comprises positioning an electromagnetic sensor configured to measure a component of a planetary electromagnetic field such that the electromagnetic sensor is suspended just above a ground-air barrier and does not contact a ground surface; selecting an electromagnetic frequency by calculating a function of properties of the ground that include relative permittivity, relative permeability, and resistivity; moving the electromagnetic sensor over the surface of the ground; repeatedly measuring intensity of the component of the planetary electromagnetic field at the frequency to obtain a set of measurements; and comparing at least a first measurement in the set of measurements to at least a second measurement in the set of measurements to identify a change in the intensity of the component of the planetary electromagnetic field that is indicative of a presence of a subsurface anomaly.

Abstract: Method for repairing a communication link failure. In certain embodiments, the method generally includes communicating with another apparatus using an initial number of channels of a plurality of channels of a communication link; selectively coupling a plurality of communication lanes with the plurality of channels of the communication link, wherein, during an initial state, a first lane of the plurality of lanes is coupled with a first channel of the plurality of channels, and wherein the plurality of channels comprises a spare channel; determining whether at least one channel of the plurality of channels is experiencing a failure; and controlling at least one of the multiplexers such that the failed channel is replaced by another channel of the plurality of channels by using the spare channel.

Abstract: One embodiment provides a device that includes one or more line of sight transmitters configured to transmit signals over a line of sight communications medium, one or more transmitters configured to transmit signals over another communications medium and a controller. The controller is configured to perform an operation that includes retrieving a key adapted for use in decrypting encrypted content. The operation further includes transmitting the key to a second device over the line of sight communications medium using the one or more line of sight transmitters. Additionally, the operation includes encrypting data such that the data can be decrypted using the retrieved key. The operation also includes transmitting the encrypted data to the second device over the other communications medium using the one or more transmitters, where the second device is configured to decrypt the encrypted data using the key received over the line of sight communications medium.

Abstract: Computer program product and apparatus for repairing a communication link failure. In certain embodiments, the apparatus generally includes a controller configured to initialize the communication link for communication with another apparatus using an initial number of channels of a plurality of channels. The apparatus may also include a plurality of multiplexers configured to selectively couple a plurality of communication lanes with the plurality of channels of the communication link. In certain embodiments, during an initial state, a first lane of the plurality of lanes may be coupled with a first channel of the plurality of channels, and the plurality of channels may include a spare channel. The controller may determine whether at least one channel of the plurality of channels is experiencing a failure and control at least one of the multiplexers such that the failed channel is replaced by another channel of the plurality of channels by using the spare channel.

Abstract: Methods and apparatus are provided for passively detecting the presence of near-surface human-scale underground anomalies using earth field measurements. A sensor is used to measure at least one electric or magnetic component of the Earth's electromagnetic field at a frequency of 5 kHz or greater in proximity to the Earth's surface for a given area. The measured intensities are used to identify variations indicative of the presence of a near-surface human-scale underground anomaly. Measuring the intensity of at least one component of the electromagnetic field at a plurality of frequencies of 5 kHz or greater can be used to determine the depth and characteristic of a near-surface human-scale underground anomaly.

Abstract: A wind turbine shaft includes tubes that are centered on a longitudinal axis, coupled to rotate together about the axis, and movable telescopically along the axis between a retracted condition and an extended condition. A mounting structure is configured to mount wind turbine vanes on the tubular structure when the tubes are in the extended condition. A generator has a pair of parts including a rotor and a stator, and is configured for coupling with the tubular structure for one of the parts to rotate about the axis with the tubular structure while the other part is stationary.

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.

Abstract: A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

Abstract: Embodiments of the present disclosure provide an apparatus for synchronizing a common reference clock over optics. For example, a reference clock from a host device may be frequency adjusted based on a pass-band of an optical link, decoded, and converted into an optical signal, and transferred to a controller of a target device via one or more optical cables. The controller may be used to recover the reference clock using the optical signal, which may be used as a common-reference clock for communications between the host and target devices.

Abstract: An apparatus comprises a coaxial cavity resonator; a radio frequency power source coupled to the coaxial cavity resonator; a direct current power source coupled to the coaxial cavity resonator; a combustion process feedback module configured to sense a condition in a combustion environment by measuring a characteristic of the coaxial cavity resonator; and a controller configured to modulate operation of the coaxial cavity resonator based at least in part on combustion process feedback information from the combustion process feedback module.

Abstract: An apparatus and method for igniting combustible materials in a combustion chamber of a combustion engine using corona discharge plasma from a quarter wave coaxial cavity resonator. A tapered quarter wave coaxial cavity resonator is adapted to mate with the combustion chamber. The quarter wave coaxial cavity resonator is coupled with an energy shaping means, or waveform generator, that develops the appropriate waveform for triggering radio frequency oscillations in the quarter wave coaxial cavity resonator. A loop coupling is angularly positioned within the quarter wave coaxial cavity resonator to match impedances between the quarter wave coaxial cavity resonator and the energy shaping means, or waveform generator. Radio frequency oscillations produce a standing wave in the quarter wave coaxial cavity resonator and a corona discharge plasma develops near the center conductor.

Abstract: Method for repairing a communication link failure. In certain embodiments, the method generally includes communicating with another apparatus using an initial number of channels of a plurality of channels of a communication link; selectively coupling a plurality of communication lanes with the plurality of channels of the communication link, wherein, during an initial state, a first lane of the plurality of lanes is coupled with a first channel of the plurality of channels, and wherein the plurality of channels comprises a spare channel; determining whether at least one channel of the plurality of channels is experiencing a failure; and controlling at least one of the multiplexers such that the failed channel is replaced by another channel of the plurality of channels by using the spare channel.

Abstract: Computer program product and apparatus for repairing a communication link failure. In certain embodiments, the apparatus generally includes a controller configured to initialize the communication link for communication with another apparatus using an initial number of channels of a plurality of channels. The apparatus may also include a plurality of multiplexers configured to selectively couple a plurality of communication lanes with the plurality of channels of the communication link. In certain embodiments, during an initial state, a first lane of the plurality of lanes may be coupled with a first channel of the plurality of channels, and the plurality of channels may include a spare channel. The controller may determine whether at least one channel of the plurality of channels is experiencing a failure and control at least one of the multiplexers such that the failed channel is replaced by another channel of the plurality of channels by using the spare channel.

Abstract: Embodiments of the present disclosure provide an apparatus for synchronizing a common reference clock over optics. For example, a reference clock from a host device may be frequency adjusted based on a pass-band of an optical link, decoded, and converted into an optical signal, and transferred to a controller of a target device via one or more optical cables. The controller may be used to recover the reference clock using the optical signal, which may be used as a common-reference clock for communications between the host and target devices.