U.S.A as represented by the Administrator of the National Aeronautics and Space Administrator Patent applications |
Patent application number | Title | Published |
20110057752 | HIGH FIELD SUPERCONDUCTING MAGNETS - A superconducting magnet includes an insulating layer disposed about the surface of a mandrel; a superconducting wire wound in adjacent turns about the mandrel to form the superconducting magnet, wherein the superconducting wire is in thermal communication with the mandrel, and the superconducting magnet has a field-to-current ratio equal to or greater than 1.1 Tesla per Ampere; a thermally conductive potting material configured to fill interstices between the adjacent turns, wherein the thermally conductive potting material and the superconducting wire provide a path for dissipation of heat; and a voltage limiting device disposed across each end of the superconducting wire, wherein the voltage limiting device is configured to prevent a voltage excursion across the superconducting wire during quench of the superconducting magnet. | 03-10-2011 |
20110055306 | OPTIMAL PADDING FOR THE TWO-DIMENSIONAL FAST FOURIER TRANSFORM - Padding or adding data to a data signal can increase the speed with which a signal processor can process the data. Methods are provided herein that can accurately predict the optimal pad size of a two dimensional array of data, which can be used to increase the processing speed of a signal processor by optimizing run-time for a two-dimensional (2-D) fast Fourier transform (FFT) operation. | 03-03-2011 |
20100033266 | COMPACT PLANAR MICROWAVE BLOCKING FILTERS - A compact planar microwave blocking filter includes a dielectric substrate and a plurality of filter unit elements disposed on the substrate. The filter unit elements are interconnected in a symmetrical series cascade with filter unit elements being organized in the series based on physical size. In the filter, a first filter unit element of the plurality of filter unit elements includes a low impedance open-ended line configured to reduce the shunt capacitance of the filter. | 02-11-2010 |
20090278736 | METHOD AND APPARATUS FOR RELATIVE NAVIGATION USING REFLECTED GPS SIGNALS - A method and system to passively navigate an orbiting moving body towards an orbiting target using reflected GPS signals. A pair of antennas is employed to receive both direct signals from a plurality of GPS satellites and a second antenna to receive GPS signals reflected off an orbiting target. The direct and reflected signals are processed and compared to determine the relative distance and position of the orbiting moving body relative to the orbiting target. | 11-12-2009 |
20090122993 | INFORMATION CAPTURING METHOD - A method for capturing information related to an audio signal includes broadcasting an acoustic signal capable of human perception, broadcasting an RF signal containing information related to content of the acoustic signal, receiving the acoustic signal, receiving the RF signal with a portable device, and using the portable device, storing the information related to the content of the acoustic signal. A similar method is used to capture information related to a visual display. | 05-14-2009 |
20080292392 | Flexure Based Linear and Rotary Bearings - A flexure based linear bearing includes top and bottom parallel rigid plates; first and second flexures connecting the top and bottom plates and constraining exactly four degrees of freedom of relative motion of the plates, the four degrees of freedom being X and Y axis translation and rotation about the X and Y axes; and a strut connecting the top and bottom plates and further constraining exactly one degree of freedom of the plates, the one degree of freedom being one of Z axis translation and rotation about the Z axis. | 11-27-2008 |