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Fu, VA
Alex Fu, Centreville, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100126372 | Supercavitating Water-Entry Projectile - A water-entry projectile capable of supercavitation and spin-stabilization comprises a forward section having one or more forward stepped sections, each stepped section being symmetrical in rotation about an axis and having a radius at an aft end that is different from a radius of a front end of an adjacent rearwardly located stepped section; an aft section having an aft stepped section, the aft stepped section being symmetrical in rotation about the axis and having a maximum radius larger than a maximum radius of the forward section; and wherein the aft section is located substantially aft of a center of gravity of the projectile. | 05-27-2010 |
Dianbo Fu, Blacksburg, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080285312 | Phase Compensation Driving Scheme for Synchronous Rectifiers - Phase compensation of a voltage appearing on physical terminals of a synchronous rectifier switching element such as a MOSFET is used to substantially eliminate effects of package inductance of the synchronous rectifier and thus approximate the actual voltage across the circuit element providing synchronous rectification in, for example, a switching power converter. By doing so and using the phase compensated signal to control the synchronous rectifier, switching time may be more suitably controlled to improve efficiency of the synchronous rectifier by substantially eliminating body diode conduction and body diode reverse recovery effects. | 11-20-2008 |
| 20090303753 | Multi-Element Resonant Converters - A resonant switched power converter having switching frequency controlled in response to an output voltage thereof achieves over-current protection such as at start-up or under short circuit conditions using a resonant tank circuit which provides a notch filter in addition to a band pass filter. A additional band pass filter provided in the resonant tank circuit achieves increased power transfer to a load and reduced circulating resonant currents and conduction losses. The inductances of the preferred LCLCL tank circuit or other tank circuit with two pass band filters and a notch filter may be integrated into a single electrical component. | 12-10-2009 |
Jyun-Horng Fu, Linden Creek Ct., VA US
| Patent application number | Description | Published |
|---|---|---|
| 20090217750 | Test Setup for a High-Speed-Torpedo Defense System - A test system that is capable of evaluating the effectiveness of a weapons system designed to defeat an incoming, fast-moving, underwater munition is disclosed. In the illustrative embodiment, an extremely large tubular sheath is inflated underwater. The sheath is maintained at a depth and inclination that is appropriate for an incoming torpedo. An inert projectile is launched or flown inside the sheath at a speed that is consistent with the speed of munition that the weapons system is intended to defeat. | 09-03-2009 |
| 20090315499 | Robust Timed Switching Control with State Measurement - A mechanism for empirically deriving the values of the damping ratio and frequency of the mechanism driven by a servo-controlled control system is disclosed. In accordance with the illustrative embodiment, the values of the damping ratio and frequency are continually re-generated based on empirical data derived from sensor feedback of the maximum-amplitude switch and the linear second-order servo. Because the values of the damping ratio and frequency are generated from empirical data, it is not necessary that they be known, and because the values of the damping ratio and frequency are continually re-generated, variances in their values are continually noticed and compensated for. | 12-24-2009 |
| 20100192796 | MUNITION CONTAINING SUB-MUNITIONS THAT DISPERSE IN A CIRCULAR DELTA GRID IMPACT PATTERN AND METHOD THEREFOR - A method is disclosed for packaging sub-munitions within stacks of same, in a cylindrical payload space, such that the sub-munitions emerge into a circular delta grid pattern when deployed. | 08-05-2010 |
| 20110017089 | CAVITY-RUNNING PROJECTILE HAVING A TELESCOPING NOSE - A projectile having a cavity-running mode is provided with a means for changing the diameter of its nose. Based on changed conditions, the diameter of the nose can be actively reduced or increased, as required, to maintain a desired value for the nose-to-body ratio of the projectile. | 01-27-2011 |
Jyun-Horng (alex) Fu, Centreville, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100237186 | DRAG-STABILIZED WATER-ENTRY PROJECTILE AND CARTRIDGE ASSEMBLY - A drag-stabilized water-entry projectile having a projectile body, one or more drag-stabilizing elements, such as fins, flares or canards, and one or more attachment members adapted to hold the one or more drag-stabilizing elements to the projectile body. The one or more attachment members are coated with a thermally reactive material. A projectile and cartridge assembly has a shear pin, a projectile having a first cutout portion, the cutout portion sized to receive the shear pin. The assembly also includes a sabot configured to house the projectile and having a second cutout portion, the second cutout portion sized to receive the shear pin. The cutout portion is positioned to provide an offset region between an aft end of the projectile and a base of the sabot. | 09-23-2010 |
Katherine Fu, Arlington, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20090293774 | Stowable Table Unit System for a Vehicle - A stowable table unit system for a motor vehicle comprises a table portion, a support leg portion, and a lifting mechanism. The table portion has a top surface and a bottom surface. The lifting mechanism connects to the table portion and positions the table portion between a stowed position and a deployed position. The support leg moves between a stored position within the bottom surface of the table portion when the table portion is in the stowed position and an extended position when the table portion is in the deployed position. | 12-03-2009 |
Xiaodong Fu, Herndon, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100268965 | AUTO-NEGOTIATION OF CONTENT FORMATS USING A SECURE COMPONENT MODEL - In accordance with one embodiment of the present invention, secure content objects are transcoded from an input format to an output format based upon identified capabilities of a receiving device. In one embodiment, a plurality of trusted processing components are identified to collectively transcode the secure content object from the identified input format to the determined output format. In one embodiment, each of the trusted processing components are authenticated prior to operating on the secure content object. | 10-21-2010 |
| 20110066843 | MOBILE MEDIA PLAY SYSTEM AND METHOD - A mobile play device rights-managed media system and method are provided herein. | 03-17-2011 |