Patents Assigned to The United States of America as Represented by the Administrator of National Aeronautics and Space Administrator
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Patent number: 9067319Abstract: A system includes a controller and a serial robot having links that are interconnected by a joint, wherein the robot can grasp a three-dimensional (3D) object in response to a commanded grasp pose. The controller receives input information, including the commanded grasp pose, a first set of information describing the kinematics of the robot, and a second set of information describing the position of the object to be grasped. The controller also calculates, in a two-dimensional (2D) plane, a set of contact points between the serial robot and a surface of the 3D object needed for the serial robot to achieve the commanded grasp pose. A required joint angle is then calculated in the 2D plane between the pair of links using the set of contact points. A control action is then executed with respect to the motion of the serial robot using the required joint angle.Type: GrantFiled: August 11, 2011Date of Patent: June 30, 2015Assignees: GM Global Technology Operations LLC, The United States of America as represented by the Administrator of the National Aeronautics and Space Administrator, Oceaneering Space SystemsInventors: Jianying Shi, Brian Hargrave, Myron A Diftler
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Patent number: 8995842Abstract: A system and method is disclosed wherein optical signals are coded in a transmitter by tuning or modulating the interbeam delay time (which modulates the fourth-order coherence) between pairs of entangled photons. The photon pairs are either absorbed or not absorbed (transparent) by an atomic or molecular fluorescer in a receiver, depending on the inter-beam delay that is introduced in the entangled photon pairs. Upon the absorption, corresponding fluorescent optical emissions follow at a certain wavelength, which are then detected by a photon detector. The advantage of the disclosed system is that it eliminates a need of a coincidence counter to realize the entanglement-based secure optical communications because the absorber acts as a coincidence counter for entangled photon pairs.Type: GrantFiled: August 6, 2009Date of Patent: March 31, 2015Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space AdministratorInventors: Jun Kojima, Quang-Viet Nguyen, John Lekki
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Patent number: 8169371Abstract: Disclosed herein is a patch antenna comprises a planar conductive patch attached to a ground plane by a support member, and a probe connector in electrical communication with the conductive patch arranged to conduct electromagnetic energy to or from the conductive patch, wherein the conductive patch is disposed essentially parallel to the ground plane and is separated from the ground plane by a spacing distance; wherein the support member comprises a plurality of sides disposed about a central axis oriented perpendicular to the conductive patch and the ground plane; wherein the conductive patch is solely supported above the ground plane by the support member; and wherein the support member provides electrical communication between the planer conductive patch and the ground plane.Type: GrantFiled: August 14, 2009Date of Patent: May 1, 2012Assignee: The United States of America, as represented by the Administrator of the National Aeronautics and Space AdministratorInventors: Neil F. Chamberlain, Richard E. Hodges, Mark S. Zawadzki
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Patent number: 7473436Abstract: Method and system for functionalizing a collection of carbon nanotubes (CNTs). A selected precursor gas (e.g., H2 or F2 or CnHm) is irradiated to provide a cold plasma of selected target species particles, such as atomic H or F, in a first chamber. The target species particles are directed toward an array of CNTs located in a second chamber while suppressing transport of ultraviolet radiation to the second chamber. A CNT array is functionalized with the target species particles, at or below room temperature, to a point of saturation, in an exposure time interval no longer than about 30 sec. *Discrimination against non-target species is provided by (i) use of a target species having a lifetime that is much greater than a lifetime of a non-target species and/or (2) use of an applied magnetic field to discriminate between charged particle trajectories for target species and for non-target species.Type: GrantFiled: April 5, 2004Date of Patent: January 6, 2009Assignees: The United States of America as represented by the Administrator of the National Aeronautics and Space Administrator, SETI InstituteInventors: Bishun N. Khare, Meyya Meyyappan
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Patent number: 7293001Abstract: System and method for optimization of a design associated with a response function, using a hybrid neural net and support vector machine (NN/SVM) analysis to minimize or maximize an objective function, optionally subject to one or more constraints. As a first example, the NN/SVM analysis is applied iteratively to design of an aerodynamic component, such as an airfoil shape, where the objective function measures deviation from a target pressure distribution on the perimeter of the aerodynamic component. As a second example, the NN/SVM analysis is applied to data classification of a sequence of data points in a multidimensional space. The NN/SVM analysis is also applied to data regression.Type: GrantFiled: November 14, 2005Date of Patent: November 6, 2007Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administrator (NASA)Inventor: Man Mohan Rai
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Patent number: 5076108Abstract: A sealing apparatus for inserting a probe into a pressure vessel having an elongated opening includes a pair of resiliently deformable seals opposingly disposed in sealing engagement with each other. A retainer is connected to the pressure vessel around the elongated opening and holds the pair of seals rigidly to the pressure vessel. A wedge is engageable with the pair of seals and carries the probe, for longitudinally translating the probe in the pressure vessel.Type: GrantFiled: August 23, 1990Date of Patent: December 31, 1991Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministratorInventor: Paul A. Trimarchi