Abstract: In one aspect, a method includes forming a silicon dioxide layer on a surface of a diamond layer disposed on a gallium nitride (GaN)-type layer. The method also includes etching the silicon dioxide layer to form a pattern. The method further includes etching portions of the diamond exposed by the pattern.

Abstract: Methods and apparatus for a dc-dc converter for operating at substantially fixed switching frequency, the converter including a rectifier, and a resonant inverter coupled to the rectifier, the resonant inverter including a switch and a reactive network having first, second, third and fourth energy storage elements, wherein an impedance magnitude at the output of the switch due to the reactive network has minima at dc and at a frequency near a second harmonic of the switching frequency.

Abstract: In a method of manufacturing bonding probes, bump layer patterns are formed on terminals of a multi-layered substrate. A first wetting layer pattern having a wettability with respect to a solder paste, and a non-wetting layer pattern having a non-wettability with respect to the solder paste are formed on the bump layer patterns. The solder paste is formed on the first wetting layer and the non-wetting layer pattern. The probes, which make contact with an object, are bonded to the solder paste. The solder paste on the non-wetting layer pattern reflows along a surface of the first wetting layer pattern to form an adhesive layer on the first wetting layer pattern. Thus, a sufficient amount of the solder paste, which is required for bonding the probes, may be provided to firmly bond the probes.

Abstract: In one aspect, a method includes fabricating a gallium nitride (GaN) layer with a first diamond layer having a first thermal conductivity and a second diamond layer having a second thermal conductivity greater than the first thermal conductivity. The fabricating includes using a microwave plasma chemical vapor deposition (CVD) process to deposit the second diamond layer onto the first diamond layer.

Abstract: A vehicle includes a high assurance processing system including a plurality of data processors coupled in parallel, a bridge coupled to the input/output processor, and an input/output processor coupled to the bridge for coupling to a sensor and an effector. Sensor data passes to the bridge through the input/output processor for processing by the parallel data processors, which generate redundant effector data for comparison by the bridge to detect errors. If data matches are found, data is transmitted to the effector.

Abstract: Methods and apparatus for non-disruptive upgrade by redirecting I/O operations. With this arrangement, a driver upgrade does not require restarting an application. In one embodiment, a method includes installing on a computer a legacy upgrade module in a kernel having a legacy driver with first and second loadable extensions for handling input/output operations for applications to and from devices, retrieving and storing static configuration data from the legacy driver, transferring the stored static configuration data to a new driver, obtaining runtime device configuration data from the devices and transferring the runtime device configuration data to the new driver, and filtering device input/output operations such that prior to cutover input/output operations are directed by the LUM through device stacks for the legacy driver and after cutover input/output operations are directed to the new driver.

Abstract: In one aspect, a method includes fabricating a gallium nitride (GaN) layer with a first diamond layer having a first thermal conductivity and a second diamond layer having a second thermal conductivity greater than the first thermal conductivity. The fabricating includes using a microwave plasma chemical vapor deposition (CVD) process to deposit the second diamond layer onto the first diamond layer.

Abstract: In one aspect, a method to perform synchronization in a network-based system includes notifying a source side appliance that I/O data is going to be written to a source side storage and a target side appliance, waiting for an acknowledgement that the notification was received and writing I/O data to the source side storage and the target side appliance.

Abstract: In one aspect, a system to generate radar signatures for multiple objects in real-time includes a first module including at least one processor to perform a shooting and bouncing (SBR) technique to solve for physical optics and multi-bounce characteristics of the objects. The at least one processor includes a central processing unit to perform dynamic ray tracing and a graphics processing unit (GPU) to perform far field calculations. The GPU includes a hit point database to store entries associated with rays that intersect an object.

Abstract: Methods and apparatus for preventing spoofing of targets, such as aircraft, in an air traffic control system. In one embodiment, first and second antennas at respective ground stations can be used to receive a signal transmitted by an aircraft from which a phase signal can be generated. A position of the aircraft generate can be generated from peaks and troughs in the phase signal due to movement of the aircraft. The determined position can be compared to a position reported by the aircraft to identify spoofing of the target.

Abstract: A radar electronics module includes a support structure having a first surface having a plurality of recesses with a transmitter circuit board and a receiver circuit board disposed thereon. The transmitter and receiver circuit boards are disposed over the first surface of the supports structure such that transmitter and receive circuits are disposed in cavities on the support structure. The radar electronics module further includes a digital/power supply circuit printed wiring board (PWB) disposed on a second surface of the support structure and a connector disposed on the support structure. The connector is disposed in such a way that it provides electrical connections for at least one of power signals, analog signals or digital signals between at least two of the digital/power supply PWB, the transmitter circuit board and the receiver circuit board.

Abstract: The presently disclosed invention provides for the fabrication of porous anodic alumina (PAA) films on a wide variety of substrates. The substrate comprises a wafer layer and may further include an adhesion layer deposited on the wafer layer. An anodic alumina template is formed on the substrate. When a rigid substrate such as Si is used, the resulting anodic alumina film is more tractable, easily grown on extensive areas in a uniform manner, and manipulated without danger of cracking. The substrate can be manipulated to obtain free-standing alumina templates of high optical quality and substantially flat surfaces. PAA films can also be grown this way on patterned and non-planar surfaces. Furthermore, under certain conditions, the resulting PAA is missing the barrier layer (partially or completely) and the bottom of the pores can be readily accessed electrically.

Abstract: A mobile deixis device includes a camera to capture an image and a wireless handheld device, coupled to the camera and to a wireless network, to communicate the image with existing databases to find similar images. The mobile deixis device further includes a processor, coupled to the device, to process found database records related to similar images and a display to view found database records that include web pages including images. With such an arrangement, users can specify a location of interest by simply pointing a camera-equipped cellular phone at the object of interest and by searching an image database or relevant web resources, users can quickly identify good matches from several close ones to find an object of interest.

Abstract: A broadband wireless network includes intelligent base stations and mobile units. The network includes control means to manage connectivity of the mobile units to the intelligent base stations. Software is provided to control connection of the mobile unit to an intelligent base station having preferred signal characteristics. When a mobile unit connects to an intelligent base station, the software broadcasts corrected routing information to all intelligent base stations on the network allowing persistent wireless connectivity.

Abstract: A method and apparatus for scanning an input beam of light in a two dimensional pattern; splitting the scanned input beam of light into two output beams of light, each one of the two output beams of light passing along a different path to a common region in a recording medium, such region scanning the recording medium during the scanning of the input beam of light to produce a diffraction grating in the recording medium by interference between the two output beams of light.

Abstract: A method and structure for reducing cracks in a dielectric in contact with a metal structure. The metal structure comprises a first metal layer; a second metal layer disposed on, and in contact with the first metal layer, the second metal layer being stiffer than the first metal layer; a third metal layer disposed on, and in contact with the second metal layer, the second metal layer being stiffer than the third metal layer. An additional metal is included wherein the dielectric layer is disposed between the metal structure and the additional metal.

Abstract: Apparatus includes a buoyant structure having a central vertical axis when floating in water and having at least one feature to reduce a rotation of the buoyant structure about the central vertical axis when floating in the water. The apparatus further includes an electronic camera assembly coupled to the buoyant structure. The electronic camera assembly is configured to generate an electronic image signal. The apparatus further includes a tubular structure coupled to the buoyant structure and configured to remain under the surface of the water. The tubular structure includes a watertight compartment and an electronic circuit assembly disposed within the watertight compartment. The electronic circuit assembly is coupled to receive the electronic image signal and is configured to generate an optical image signal representative of the electronic image signal. The apparatus further includes a fiber optic cable configured to carry the optical image signal.

Abstract: A thermal management system includes an air duct assembly comprising a supply air duct having an air inlet opening, a return air duct having an air exit opening and a plurality of distribution air ducts configured to be in fluid communication with the air inlet opening of the supply air duct and with the air exit opening of the return air duct. A fan is disposed within the air duct assembly to direct air from the air inlet opening of the supply air duct through the supply air duct and out the air exit opening of the return air duct. The fan and supply duct are disposed to direct air over a first surface of a heat sink. A second opposing surface of the heat sink is disposed over and configured to be in thermal contact with a plurality of active circuits disposed on a first surface of a radio frequency (RF) multi-layer printing wiring board (PWB).

Abstract: A magnetoresistive (MR) sensing device includes MR elements electrically connected to form a bridge circuit and one or more non-functional (or “dummy”) MR elements for improved matching of the bridge circuit MR elements.

Abstract: In one aspect, a method to recover data includes annotating metadata entries in a journal to indicate changes by an application to an object stored in a continuous data protection environment. Each entry of the metadata corresponds to one of a unique group of DO stream data blocks or a unique group of UNDO stream data blocks. The method also includes determining a version of the object that meets criteria by searching the annotated entries and obtaining the version of the object that meets the criteria. In another aspect, a method to recover data includes receiving criteria to recover an object, determining a version of the object that meets the criteria by searching point-in-time images using a DO stream and an UNDO stream and obtaining the version of the object that meets the criteria.