Patents Assigned to NASA
-
Publication number: 20080250389Abstract: Systems, methods and apparatus are provided through which an evolutionary system is managed and viewed as a software product line. In some embodiments, the core architecture is a relatively unchanging part of the system, and each version of the system is viewed as a product from the product line. Each software product is generated from the core architecture with some agent-based additions. The result may be a multi-agent system software product line.Type: ApplicationFiled: September 28, 2006Publication date: October 9, 2008Applicant: NASA HQ'sInventors: Michael G. Hinchey, James L. Rash, Joaquin Pena
-
Publication number: 20080250118Abstract: Systems, methods and apparatus are provided through which in some embodiments a CFDP protocol state machine and state table is implemented on each of a number of entities in a space communication system. Some embodiments of the state table specify at least one action to specific events for each of a plurality of possible states and each state table implements a core CFDP protocol. In some embodiments a method to transfer data into and out of space flight systems and/or ground systems includes receiving a user request into a memory of a CFDP-compliant library apparatus. The method also includes starting a state machine in the memory of the CFDP-compliant library apparatus that prompts a core protocol to transfer a specified file to and/or from a specified destination and initiating transfer of data blocks from the memory of the library apparatus.Type: ApplicationFiled: October 9, 2007Publication date: October 9, 2008Applicant: United States of America as represented by the Administrator of NASAInventor: Timothy J. Ray
-
Patent number: 7431242Abstract: A convex shell structure for enhanced aerodynamic performance and/or reduced heat transfer requirements for a space vehicle that re-enters an atmosphere. The structure has a fore-body, an aft-body, a longitudinal axis and a transverse cross sectional shape, projected on a plane containing the longitudinal axis, that includes: first and second linear segments, smoothly joined at a first end of each the first and second linear segments to an end of a third linear segment by respective first and second curvilinear segments; and a fourth linear segment, joined to a second end of each of the first and second segments by curvilinear segments, including first and second ellipses having unequal ellipse parameters. The cross sectional shape is non-symmetric about the longitudinal axis. The fourth linear segment can be replaced by a sum of one or more polynomials, trigonometric functions or other functions satisfying certain constraints.Type: GrantFiled: November 1, 2005Date of Patent: October 7, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventors: James L. Brown, Joseph A. Garcia, Dinesh K. Prabhu
-
Publication number: 20080212620Abstract: A microsphere fiber laser system includes a laser beam conducting fiber coated with doped microspheres. One end of the fiber is pumped with a pumping laser. The other end of the fiber is an output. Microspheres with different dopants may be used to obtain outputs of different wavelengths. The microspheres may be attached to an outer surface of a solid fiber or to the internal wall of a hollow fiber.Type: ApplicationFiled: July 24, 2007Publication date: September 4, 2008Applicant: NASA HeadquartersInventor: HOSSIN A. ABDELDAYEM
-
Patent number: 7410714Abstract: A Unitized Regenerative Fuel Cell system uses heat pipes to convey waste heat from the fuel cell stack to the reactant storage tanks. The storage tanks act as heat sinks/sources and as passive radiators of the waste heat from the fuel cell stack. During charge up, i.e., the electrolytic process, gases are conveyed to the reactant storage tanks by way of tubes that include dryers. Reactant gases moving through the dryers give up energy to the cold tanks, causing water vapor in with the gases to condense and freeze on the internal surfaces of the dryer. During operation in its fuel cell mode, the heat pipes convey waste heat from the fuel cell stack to the respective reactant storage tanks, thereby heating them such that the reactant gases, as they pass though the respective dryers on their way to the fuel cell stacks retrieve the water previously removed.Type: GrantFiled: July 15, 2004Date of Patent: August 12, 2008Assignee: The United States of America as represented by the Administration of NASAInventor: Kenneth A. Burke
-
Publication number: 20080169003Abstract: Systems and methods are provided through which in some embodiments for controlling intermolecular forces between a contact surface and a fabricated microstructure having a base and at least one or more nano-structures. The contact surface and the fabricated microstructure are joined by the interplay of electrostatic and van der Waals forces. The contact surface can be planetary dust with surfaces involved in planetary exploration, as well as synthetic gecko hairs that would allow small robots to climb walls and traverse ceilings. The system and method allow intense electrostatic forces to be applied at variable levels in order to modulate the effectiveness of van der Waals forces as well as external electrostatic forces. This device enables advanced small robot mobility, planetary dust control at all possible ambient pressures, as well as dust sample collection for exploration analysis.Type: ApplicationFiled: October 10, 2007Publication date: July 17, 2008Applicant: NASA HeadquartersInventor: STEVEN A. CURTIS
-
Patent number: 7385692Abstract: A system for determining gas compositions includes a probe, inserted into a source of gaseous material, the probe having a gas permeable sensor tip and being capable of sending and receiving light to and from the gaseous material, a sensor body, connected to the probe, situated outside of the source and a fiber bundle, connected to the sensor body and communicating light to and from the probe. The system also includes a laser source, connected to one portion of the fiber bundle and providing laser light to the fiber bundle and the probe a Raman spectrograph, connected to another portion of the fiber bundle, receiving light from the probe and filtering the received light into specific channels and a data processing unit, receiving and analyzing the received light in the specific channels and outputting concentration of specific gas species in the gaseous material based on the analyzed received light.Type: GrantFiled: April 28, 2006Date of Patent: June 10, 2008Assignee: The United of America as represented by the Administrator of NASAInventor: Quang-Viet Nguyen
-
Patent number: 7381459Abstract: A composite thermal protection structure, for applications such as atmospheric re-entry vehicles, that can withstand temperatures as high as 3600° F. The structure includes an exposed surface cap having a specially formulated coating, an insulator base adjacent to the cap with another specially formulated coating, and one or more pins that extend from the cap through the insulator base to tie the cap and base together, through ceramic bonding and mechanical attachment. The cap and insulator base have corresponding depressions and projections that mate and allow for differences in thermal expansion of the cap and base.Type: GrantFiled: February 12, 2004Date of Patent: June 3, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventors: David A. Stewart, Daniel B. Leiser
-
Patent number: 7375826Abstract: A laser scanner computes a range from a laser line to an imaging sensor. The laser line illuminates a detail within an area covered by the imaging sensor, the area having a first dimension and a second dimension. The detail has a dimension perpendicular to the area. A traverse moves a laser emitter coupled to the imaging sensor, at a height above the area. The laser emitter is positioned at an offset along the scan direction with respect to the imaging sensor, and is oriented at a depression angle with respect to the area. The laser emitter projects the laser line along the second dimension of the area at a position where a image frame is acquired. The imaging sensor is sensitive to laser reflections from the detail produced by the laser line. The imaging sensor images the laser reflections from the detail to generate the image frame.Type: GrantFiled: September 23, 2004Date of Patent: May 20, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventors: Joseph P. Lavelle, Stefan R. Schuet
-
Publication number: 20080078936Abstract: A device/system for radiation sensing is configured to detect high and low LET radiation. The radiation sensing system may include a high LET detector and a low LET detector coupled to the high LET detector by a CPU, wherein the high LET detector and the low LET detector are assembled within a single unit. The device/system may also include a high LET and low LET detector that may be coupled together without an internal CPU. Overall, the device/system may be a stand-alone system and/or coupled to an external processing device. The device/system may also be approximately 6×6×2 cm in size, making it hand portable and may weigh less or equal to approximately ninety (90) grams, and operate on less than or approximately 0.25 watts of power.Type: ApplicationFiled: September 29, 2006Publication date: April 3, 2008Applicant: NASA HQ's.Inventor: Epaminodas G. Stassinopoulos
-
Publication number: 20080082714Abstract: Systems, methods and apparatus are provided through which, in some embodiments, a USB flash memory storage device includes a plurality of interfaces to external devices. An apparatus to store data can include a non-volatile computer memory coupled by a male interface to an external device, such as a computer, and a by a female interface to another external device, such as another apparatus to store data. Thus, multiple apparatus may be coupled together in daisy-chain fashion to create a single, larger memory device that can be accessed by the computer.Type: ApplicationFiled: September 29, 2006Publication date: April 3, 2008Applicant: NASA HQ's.Inventor: Michael G. HINCHEY
-
Publication number: 20080074098Abstract: The invention relates to a driven ground electrical circuit. A driven ground is a current-measuring ground termination to an electrical circuit with the current measured as a vector with amplification. The driven ground module may include an electric potential source VS driving an electric current through an impedance (load Z) to a driven ground. Voltage from the source VS excites the minus terminal of an operational amplifier inside the driven ground which, in turn, may react by generating an equal and opposite voltage to drive the net potential to approximately zero (effectively ground). A driven ground may also be a means of passing information via the current passing through one grounded circuit to another electronic circuit as input. It may ground one circuit, amplify the information carried in its current and pass this information on as input to the next circuit.Type: ApplicationFiled: September 27, 2006Publication date: March 27, 2008Applicant: NASA HQ's.Inventor: John M. Vranish
-
Patent number: 7333735Abstract: Ultrafast directional beam switching, using coupled VCSELs is combined with a light modulator to provide information transfer at bit rates of tens of GHz. This approach is demonstrated to achieve beam switching frequencies of 32-50 GHz in some embodiments and directional beam switching with angular differences of about eight degrees. This switching scheme is likely to be useful for ultrafast optical networks at frequencies much higher than achievable with other approaches. A Mach-Zehnder interferometer, a Fabry-Peror etalon, or a semiconductor-based electro-absorption transmission channel, among others, can be used as a light modulator.Type: GrantFiled: June 30, 2004Date of Patent: February 19, 2008Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventor: Peter M. Goorjian
-
Publication number: 20080011904Abstract: This invention is a method and supporting apparatus for autonomously capturing, servicing and de-orbiting a free-flying spacecraft, such as a satellite, using robotics. The capture of the spacecraft includes the steps of optically seeking and ranging the satellite using LIDAR; and matching tumble rates, rendezvousing and berthing with the satellite. Servicing of the spacecraft may be done using supervised autonomy, which is allowing a robot to execute a sequence of instructions without intervention from a remote human-occupied location. These instructions may be packaged at the remote station in a script and uplinked to the robot for execution upon remote command giving authority to proceed. Alternately, the instructions may be generated by Artificial Intelligence (AI) logic onboard the robot. In either case, the remote operator maintains the ability to abort an instruction or script at any time, as well as the ability to intervene using manual override to teleoperate the robot.Type: ApplicationFiled: February 5, 2007Publication date: January 17, 2008Applicant: United States of America as represented by the Administrator of the NASAInventors: Frank Cepollina, Richard Burns, Jill Holz, James Corbo, Nicholas Jedhrich
-
Patent number: 7314648Abstract: A composite thermal protection structure, for applications such as atmospheric re-entry vehicles, that can withstand temperatures as high as 3600° F. The structure includes an exposed surface cap having a specially formulated coating, an insulator base adjacent to the cap with another specially formulated coating, and one or more pins that extend from the cap through the insulator base to tie the cap and base together, through ceramic bonding and mechanical attachment. The cap and insulator base have corresponding depressions and projections that mate and allow for differences in thermal expansion of the cap and base. A thin coating of a reaction cured glass formulation is optionally provided on the structure to allow reduce oxidization and/or to reduce catalytic efficiency.Type: GrantFiled: July 27, 2004Date of Patent: January 1, 2008Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventors: David A. Stewart, Daniel B. Leiser
-
Patent number: 7313475Abstract: A method and associated system for time delay banking for aircraft arrival time, aircraft departure time and/or en route flight position. The delay credit value for a given flight may decrease with passage of time and may be transferred to or traded with other flights having the same or a different user (airline owner or operator). The delay credit value for a given aircraft flight depends upon an initial delay credit value, which is determined by a central system and depends upon one or more other flight characteristics. Optionally, the delay credit value decreases with passage of time. Optionally, a transaction cost is assessed against a delay credit value that is used on behalf of another flight with the same user or is traded with a different user.Type: GrantFiled: February 1, 2005Date of Patent: December 25, 2007Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventor: Steven M. Green
-
Patent number: 7305935Abstract: A high density plasma generated by microwave injection using a windowless electrodeless rectangular slotted antenna waveguide plasma source has been demonstrated. Plasma probe measurements indicate that the source could be applicable for low power ion thruster applications, ion implantation, and related applications. This slotted antenna plasma source invention operates on the principle of electron cyclotron resonance (ECR). It employs no window and it is completely electrodeless and therefore its operation lifetime is long, being limited only by either the microwave generator itself or charged particle extraction grids if used. The high density plasma source can also be used to extract an electron beam that can be used as a plasma cathode neutralizer for ion source beam neutralization applications.Type: GrantFiled: August 25, 2004Date of Patent: December 11, 2007Assignee: The United States of America as represented by the Administration of NASAInventor: John Foster
-
Publication number: 20070260570Abstract: Systems, methods and apparatus are provided through which in some embodiments an autonomic environmental safety device may be quiesced. In at least one embodiment, a method for managing an autonomic safety device, such as a smoke detector, based on functioning state and operating status of the autonomic safety device includes processing received signals from the autonomic safety device to obtain an analysis of the condition of the autonomic safety device, generating one or more stay-awake signals based on the functioning status and the operating state of the autonomic safety device, transmitting the stay-awake signal, transmitting self health/urgency data, and transmitting environment health/urgency data. A quiesce component of an autonomic safety device can render the autonomic safety device inactive for a specific amount of time or until a challenging situation has passed.Type: ApplicationFiled: September 21, 2006Publication date: November 8, 2007Applicant: NASA HQ's.Inventors: Michael G. HINCHEY, Roy STERRITT
-
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
-
Patent number: 7288490Abstract: Method and system for fabricating an array of two or more carbon nanotube (CNT) structures on a coated substrate surface, the structures having substantially the same orientation with respect to a substrate surface. A single electrode, having an associated voltage source with a selected voltage, is connected to a substrate surface after the substrate is coated and before growth of the CNT structures, for a selected voltage application time interval. The CNT structures are then grown on a coated substrate surface with the desired orientation. Optionally, the electrode can be disconnected before the CNT structures are grown.Type: GrantFiled: December 7, 2004Date of Patent: October 30, 2007Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventor: Lance D. Delzeit