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| Number | Title | Issue Date |
| 7443340 | Method and apparatus for generating and distributing satellite tracking information A method and apparatus for generating and distributing satellite tracking data to a remote receiver is disclosed. The method for includes extracting from satellite-tracking data initial model parameters representing a current orbit of at least one satellite-position... | 10/28/2008 |
| 7428405 | Automatic operation system and method for automating satellite control operation and satellite ground control system using the same Provided are an automatic operation system for automating satellite control operation, a method thereof, and an automatic satellite ground control system using the same. The object of the present research is to provide an automatic operation system that can reduce o... | 09/23/2008 |
| 7370566 | Complimentary retrograde/prograde satellite constellation A method for sensing and monitoring ICBM threats using a constellation of earth orbiting satellites. The method includes arranging a first and a second plurality of threat sensing satellites in earth orbit. The first plurality is selected to have a first prograde or... | 05/13/2008 |
| 7358474 | System and method for time-delay integration imaging A system is provided that includes an optical arrangement, an assembly of a plurality of detectors, and a signal processor. The optical arrangement is capable of viewing a scene that includes an object, where the scene is capable of moving through a field of view of... | 04/15/2008 |
| 7342379 | Sensorless control systems and methods for permanent magnet rotating machines Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator... | 03/11/2008 |
| 7321825 | Method and apparatus for determining vehicle operating conditions and providing a warning or intervention in response to the conditions A control system (12) for an automotive vehicle (10) includes a GPS system (16) that generates a vehicle position for a vehicle relative to a surface, a plurality of driver inputs (40), and a plurality of vehicle inputs (50). A con... | 01/22/2008 |
| 7310578 | Fast access, low memory, pair catalog A system (18) includes: a) A vehicle (12) includes an attitude or angular velocity control system (38), a plurality of star trackers or star sensors (22) each having a field of view (28); b) a memory (30) having a star catal... | 12/18/2007 |
| 7302317 | System and method to enhance attitude estimation for transfer orbit maneuver A system and method to enhance attitude estimation for transfer orbit maneuvers of a spinning satellite includes a transfer orbit earth sensor that can receive and convert an infrared radiance to an analog signal. The analog signal is provided to a hardware chord pr... | 11/27/2007 |
| 7258306 | Thermal deformation determination for payload pointing using space-based beacon A system and associated method for compensating for thermal deformation of a spaced-based structure having a spacecraft payload. The system including a beacon source coupled to a first spacecraft for transmitting a first signal and a beacon sensor coupled to a secon... | 08/21/2007 |
| 7246775 | System and method of substantially autonomous geosynchronous time-optimal orbit transfer Method of and system for on-board substantially autonomous control for transferring a spacecraft from an initial orbit to a final geosynchronous orbit, by a trajectory that minimizes remaining transfer time and orbit transfer fuel. The spacecraft determines its orbi... | 07/24/2007 |
| 7245214 | Electronically tracking a path history Methods and systems for electronically tracking the progress of teams as they cover an assigned geographic area are described herein. A server computer establishes a coverage area, divides the coverage area into a plurality of regions, and assigns each region to a t... | 07/17/2007 |
| 7228231 | Multiple stayout zones for ground-based bright object exclusion A vehicle (12) including a control system (18) is used for controlling vehicle attitude or angular velocity (38). The processor (24) is coupled to a star sensor or tracker (22) and a memory (30) that may include a star catal... | 06/05/2007 |
| 7227114 | Method of estimating the attitude of a space device with improved precision A method of determining the attitude of a spacecraft is provided. The method may include sensing the projections of a plurality of stars on a sensor, converting the projections into sensor-star directions, and determining the angular values of the spacecraft relativ... | 06/05/2007 |
| 7212921 | System and method for multiplexing and transmitting DC power, IMU data and RF data on a single cable A system for providing connectivity to co-located instruments includes a processor for receiving and processing GPS data and IMU data, a GPS receiver antenna operable to supply the GPS data to the processor, and an IMU, co-located with the GPS receiver antenna, oper... | 05/01/2007 |
| 7203943 | Dynamic allocation of processing tasks using variable performance hardware platforms The present invention provides for the dynamic allocation of processing tasks using variable performance hardware. In addition, the present invention allows tasks to be assigned to computer resources according to the ability of a computer resource to perform the tas... | 04/10/2007 |
| 7185858 | Spacecraft gyro calibration system A method of calibrating a gyro (42) of a spacecraft (14) may include determining a yaw attitude residual of the spacecraft. Roll gyro bias residual is determined in response to the yaw attitude residual. The gyro (42) is calibrated in response t... | 03/06/2007 |
| 7134630 | Thermal deformation determination for payload pointing using space-based beacon A system and associated method for compensating for thermal deformation of a spaced-based structure having a spacecraft payload. The system including a beacon source coupled to a first spacecraft for transmitting a first signal and a beacon sensor coupled to a secon... | 11/14/2006 |
| 7133815 | Method and system for balancing thrust demands In the control of spacecraft, thrusters must generate a commanded force or torque that is computed from the control algorithms in order to maintain a certain attitude or orbit. In general, there is an infinite number of solutions as to how the thrusters are fired in... | 11/07/2006 |
| 7113851 | Practical orbit raising system and method for geosynchronous satellites A practical orbit raising method and system wherein a satellite quickly escapes the Van Allen radiation belts and payload mass and mission life are maximized. A satellite is launched that contains high thrust chemical propulsion thrusters, high specific impulse elec... | 09/26/2006 |
| 7110883 | Space based augmentation system with hierarchy for determining geographical corrections source Systems, devices and methods are provided for determining the appropriate or desired geographical correction source for SBAS corrections. One aspect provided herein is a method. According to one method embodiment, a Space Based Augmentation System (SBAS) correction ... | 09/19/2006 |
| 7103280 | Architecture for an optical satellite communication network A satellite constellation has a plurality of satellites. Each of the satellites has an RF ground link for communicating with a ground station and an optical link for communication with at least one of the plurality of satellites. Each of the satellites has a reconfi... | 09/05/2006 |
| 7096095 | Method for the fuel-optimized selection of a thruster configuration The invention describes a method for the fuel-optimized selection of a configuration of thrusters on a spacecraft while resolving a linear optimization problem with an initialization phase for finding a first permissible solution and a subsequent iteration phase, in... | 08/22/2006 |
| 7076341 | Autonomous manoeuvring for spinning spacecraft An inventive autonomous active manoeuvring method and system 1 for spinning spacecraft is provided having a capability to enhance the AOCMS performance of passive spinning satellites and to fulfil the emerging autonomy requirements applicable to new generatio... | 07/11/2006 |
| 7068180 | Celestial object location device A hand-held electronic celestial object-locating device assists in identifying a celestial object or directing a user to a desired celestial object. The device is useful for locating or identifying any celestial object including stars, constellations, planets, comet... | 06/27/2006 |
| 7069021 | Method and a system for positioning of an electronic device, and an electronic device A method is provided for determining the position of an electronic device by receiving a code modulated signal transmitted by satellites, and position information of the satellites and time data, and by generating local time data. In the method, delta range measurem... | 06/27/2006 |
| 7046824 | System and method of presenting altitude visibility information provision system utilizing satellite image, and system and method of recognizing flight obstacle A satellite image analysis and processing apparatus includes a DEM extraction unit for extracting digital elevation model information having topography data and steeple-shaped building data; a topography situation recognition unit for discriminating a kind of topogr... | 05/16/2006 |
| 7039115 | Processor allocation for channels in a video multi-processor system An efficient processing system, such as for transcoding video data. In a multi-processor embodiment, channels of data are assigned to processors to maximize the use of the processor resources. A channel complexity measure is made from a sample of each channel, and a... | 05/02/2006 |
| 6999860 | Low energy method for changing the inclinations of orbiting satellites using weak stability boundaries and a computer process for implementing same A fuel efficient technique for changing the inclination, with respect to the Earth's equator, for a satellite includes first maneuvering the satellite to the moon on a BCT (Ballistic Capture Transfer). At the moon, the satellite is in the so-called fuzzy boundary or... | 02/14/2006 |
| 6957143 | Monitoring of substitution of high quality position measurements with upgraded low quality position measurements A method for monitoring of the substitution at least one high quality position measurement with a set of upgraded low quality position measurements comprising the steps of: (A) selecting a high quality source of position measurements of the object from a group of hi... | 10/18/2005 |
| 6950060 | Satellite positioning system A satellite positioning system and method of maintaining the positioning and clock data of a satellite using as few as one or two monitoring stations is disclosed. Each satellite of the positioning system determines its own positioning and clock data relative to oth... | 09/27/2005 |
| 6934609 | Space-based integrated multi-mission broadband architecture Spacecraft network and communication method thereof. A spacecraft network includes a first server spacecraft disposed in a first server orbit, a first client spacecraft disposed in a first client orbit, and a wireless local area network formed between at least the f... | 08/23/2005 |
| 6912075 | Ring architecture for an optical satellite communication network with passive optical routing A node for satellite system communications between a ground station and a satellite includes a fiber optic bus on the satellite. An optical drop is coupled to the bus. The optical drop resolves an optical signal destined to the given satellite from the optical bus. ... | 06/28/2005 |
| 6904160 | Method for matching geographic information with recorded images A method for matching a recorded image with geographic data substantially corresponding to a geographic location where the image was recorded, is disclosed. In a preferred embodiment, global positioning system data logs are time matched with other data collected, in... | 06/07/2005 |
| 6889941 | Aircraft formation/refueling guidance system An aircraft formation/refueling guidance system guides a follower aircraft relative to a leader aircraft. A datalink provides a position hold and a bias command from the leader aircraft to the follower aircraft. An optical tracker onboard the follower aircraft takes... | 05/10/2005 |
| 6889002 | Recording medium on which navigation information is recorded and information reproducing apparatus therefor A recording medium and an information reproducing apparatus capable of quickly reading navigation information are offered. The recording medium has a plurality of recording layers, on each of which navigation information is recorded. Navigation information having a ... | 05/03/2005 |
| 6866231 | Method for limiting interference between satellite communications systems Boeing achieves satellite diversity by having a large discrimination angle for a MEO constellation of communications satellites to limit interference in the Ku-band with GSO communications systems. Each satellite entering an exclusion zone over a GSO ground station ... | 03/15/2005 |
| 6859769 | Method and apparatus for creating elements and systems for description of position and motion of bodies in three-dimensional space to support orbital maneuver analysis The present invention provides a graphical user interface and software architecture that empowers the user to create new vectors, axes, points, coordinate systems, and other elements, and combinations thereof. The explicit means of creating coordinate systems and pr... | 02/22/2005 |
| 6845950 | System for high efficiency spacecraft orbit transfer The present invention relates generally to systems and methods for transferring a spacecraft from a first orbit to a second orbit. In accordance with one embodiment of the invention, the method comprises calculating thruster-off regions within an orbit transfer in w... | 01/25/2005 |
| 6844822 | Celestial object location device A hand-held electronic celestial object-locating device assists in identifying a celestial object or directing a user to a desired celestial object. The device is useful for locating or identifying any celestial object including stars, constellations, planets, comet... | 01/18/2005 |
| 6813547 | Method of providing protection against the effects of solar originating protons, so as to make it possible for a star sensor to be reconfigured, and an attitude control system implementing the method The invention provides a system and method of providing protection against the effects of protons of solar origin, so as to make it possible for a start sensor to be reconfigured. The system detects the arrival of an eruption of solar origin protons, supplies a cont... | 11/02/2004 |