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| Number | Title | Issue Date |
| 8130140 | Optimized beamforming for satellite communication A method for determining beamforming weights used onboard a satellite and ground-based beamforming weights used in a ground-based station as part of a satellite communication system. This beamforming method is a two-stage beamforming process that requires a reduced ... | 03/06/2012 |
| 7728766 | Optimized beamforming for satellite communication A method for determining beamforming weights used onboard a satellite and ground-based beamforming weights used in a ground-based station as part of a satellite communication system. This beamforming method is a two-stage beamforming process that requires a reduced ... | 06/01/2010 |
| 7551124 | Method for optimising at least one property of a satellite system, optimisation device for a satellite system, satellite receiver and satellite system A method for optimizing at least one property of a satellite system. The system has a satellite provided with a transmitter for transmitting a satellite signal that represents data. The satellite further has a satellite receiver for receiving the satellite signal. T... | 06/23/2009 |
| 7545315 | Satellite with multi-zone coverage obtained by beam deviation A telecommunication satellite with multi-zone coverage, including at least one transmission and/or reception antenna with at least one transmission and/or reception source (C, R), for the provision or reception of a beam in a selected direction, defined by a selecte... | 06/09/2009 |
| 7426386 | Beam laydown for hopped satellite downlink with adaptable duty cycle A power gated variable hop cycle beam laydown (700) manifests itself as first cells (C, D) supported by a first hop cycle, second cells (G, H) supported by a second hop cycle, and transition cells (E, F) supported by a transition hop cycle. The transition hop... | 09/16/2008 |
| 7423587 | Method for frequency-driven generation of a multiresolution decomposition of the input to wave-based sensing arrays A method for generating a multiresolution decomposition of an array signal by a bank of spatial bandpass filters is disclosed. The signal processing operation is implemented through the use of the directivities of the individual array elements and does not degrade t... | 09/09/2008 |
| 7372401 | Multitracking of collocated satellites Tracking of collocated satellites is accomplished by providing a single tracking antenna having a tracking feed and combiner which receives a first satellite signal. A first pointing error signal is extracted from the tracking feed based on the first satellite signa... | 05/13/2008 |
| 7373085 | Hybrid satellite and fiber communications system A communication system employing optical fibers and a high data rate satellite is utilized to provide high-speed Internet access to various geographic regions. In one aspect, a first teleport station is located geographically separated from a first user. The first t... | 05/13/2008 |
| 7366463 | Military UHF and commercial Geo-mobile system combination for radio signal relay A radio signal relay device such as satellite is used to cover several relatively small geographical regions with relatively narrow beams as well as a relatively large geographical region with a single beam. This relatively wide beam permits legacy equipment to be u... | 04/29/2008 |
| 7355513 | Ultra-reliable personnel position locating system A survivor locator system allows for the detection of the location for a person who is lost and requires recovery and extraction from their current environment. By using a phase matched antenna set, a GPS receiver, and a handheld simplified beacon-equipped survival ... | 04/08/2008 |
| 7348929 | Phased array antenna with subarray lattices forming substantially rectangular aperture A phased array antenna includes a plurality of subarray lattices connected together in a linear configuration and forming a substantially rectangular aperture. Each subarray lattice is clocked progressively to obtain an aperiodic aperture and reduce grating lobes. | 03/25/2008 |
| 7337097 | Dynamic modeling technique for the deployment of large satellite antennas A method for modeling a structure deployed on a spacecraft. The method includes determining a geometric shape that resembles the structure in a fully deployed configuration; generating time functions for a change in shape of at least one structural component of the ... | 02/26/2008 |
| 7330151 | Alignment of an elliptical beam of an antenna A system and methods for aligning an elliptical beam of an antenna to a line-of-sight from the antenna to a remote receiver are disclosed. The methods offset the antenna from an initial pointing direction in an antenna pointing coordinate system. Coordinates of the ... | 02/12/2008 |
| 7327698 | Method and system for providing satellite communications using on-orbit payload configuration and reconfiguration A system for providing high frequency data communications in a satellite-based communications network includes a plurality of communications satellites each having uplink and downlink antennas capable of receiving and transmitting a plurality of signals. Each of sai... | 02/05/2008 |
| 7324817 | Wireless communication method and apparatus for selecting and reselecting cells based on measurements performed using directional beams and an omni-directional beam pattern A wireless communication method and apparatus for selecting and reselecting cells used by a wireless transmit/receive unit (WTRU) in a wireless multi-cell communication system. The WTRU includes a switched beam antenna configured to form a plurality of directional b... | 01/29/2008 |
| 7315279 | Antenna system for producing variable-size beams An antenna system has multiple antenna feed elements combined in a number of element sets independently controlled to provide a beam of a variable size. Multiple input power dividers are provided for dividing an input signal, and multiple phase controllers are respe... | 01/01/2008 |
| 7315532 | Time-divided transmission between adjacent cells In a DVB-T network, a single channel is shared between transmitters associated with adjacent cells on a time-division basis. Timing allocation information signals are received at each transmitter, where it is determined therefrom and from a common time reference, su... | 01/01/2008 |
| 7308230 | Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use Systems and methods for transmitting and receiving diverse signals across regions using a minimum of frequency capacity and maintaining compatibility with the heritage system. A system of the invention comprises at least one broadcast transmitter for transmitting a ... | 12/11/2007 |
| 7308264 | Method for identifying pre-candidate cells for a mobile unit operating with a switched beam antenna in a wireless communication system, and corresponding system Measurements for identifying pre-candidate cells are made by a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams a... | 12/11/2007 |
| 7302226 | Combined fixed satellite service and mobile platform satellite service communication system A communication system for a mobile platform satellite service (MPSS) system includes a receiver subsystem (RS) and a transmitter subsystem (TS). A satellite transponder is in communication with the RS and the TS of the mobile platform. A satellite service ground st... | 11/27/2007 |
| 7280070 | Robust optimal shading scheme for adaptive beamforming with missing sensor elements A new technique for re-computing shading parameters for low sidelobe levels for a radar or sonar system is disclosed. When some of the sensor elements become inoperative, remaining shading parameters are recomputed using a new constraint. This approach leads to an o... | 10/09/2007 |
| 7280848 | Active array antenna and system for beamforming An active antenna array for use in a beamforming antenna system. The antenna array includes multicarrier power amplifiers coupled to each antenna element wherein the outputs of the multicarrier power amplifiers are linearized. The antenna array communicates with a b... | 10/09/2007 |
| 7277673 | Virtually geostationary satellite array with optimized parameters A plurality of satellites are placed into a virtually geosynchronous orbit, in which a first part of the orbit, that is near apogee, has a similar movement to the rotation of the earth, and therefore the orbit appears virtually stationary relative to the earth. Diff... | 10/02/2007 |
| 7271767 | Beamforming architecture for multi-beam phased array antennas A first subarray beamformer for a multi-beam phased array antenna (12) used in a receiving mode includes multiple phased array antenna beamforming layers. The beamforming layers include a first beamforming layer (90) that may have a first series of com... | 09/18/2007 |
| 7268726 | Method and apparatus for correction of quantization-induced beacon beam errors A method of correcting for beacon pointing errors is disclosed. A desired beacon value and a predicted measured beacon value are computed and used to generate the beacon correction. An antenna pattern calculator can be used to compute the predicted measured beacon v... | 09/11/2007 |
| 7262732 | Method and apparatus for fast satellite acquisition via signal identification The invention relates to a method and apparatus for fast satellite antenna acquisition via signal identification. The method and apparatus operate by positioning a satellite antenna using signal identification in order to reduce false satellite signal locks and miss... | 08/28/2007 |
| 7260391 | Satellite mobile telephone cell departure prediction A mobile station (4) in a satellite mobile telephone system predicts when it will move into another cell on the basis of one set of broadcast information thereby reducing the overall processing burden. The mobile station (4) can predict with a useful d... | 08/21/2007 |
| 7257418 | Rapid user acquisition by a ground-based beamformer A method for rapid acquisition of a specific subscriber by a ground-based beamformer includes the steps of defining a coverage area as an arrangement of a plurality of cells wherein one of the plurality of cells includes a specific subscriber; defining a partition o... | 08/14/2007 |
| 7243008 | Automated intel data radio The present invention is directed to a system for automating mission related tasks in a tactical environment. The system includes a receiver component configured to receive intelligence data. The intelligence data describes the tactical environment in real-time, or ... | 07/10/2007 |
| 7242904 | Dual-band multiple beam antenna system for communication satellites A dual-band multiple beam antenna system for a communications satellite sharing a set of reflector antennas for the transmit and receive frequencies. One set of reflectors is common to both the downlink and uplink frequencies. The feed horns are diplexed and exhibit... | 07/10/2007 |
| 7236750 | Techniques for correcting for phase and amplitude offsets in a MIMO radio device Techniques to correct for phase and amplitude mismatches in a radio device in order to maintain channel symmetry when communicating with another device using MIMO radio communication techniques. Correction for the amplitude and phase mismatches among the plurality o... | 06/26/2007 |
| 7231197 | Angle rate interferometer and passive ranger A receiver includes a processor and an RF bridge. The RF bridge is coupled to the processor to receive a reference signal from the processor. The RF bridge includes first and second frequency converters coupled to respective first and second antennas. The RF bridge ... | 06/12/2007 |
| 7221268 | Method and system for providing an active routing antenna An array antenna is facilitates transmission of data with amongst fixed radio units. The array antenna includes a number of antenna panels arranged in an hexagonal shape, one or more array control elements controlling the antenna panels, and one antenna routing elem... | 05/22/2007 |
| 7221317 | Space-based lever arm correction in navigational systems employing spot beams A method and apparatus for estimating a lever arm correction between the wide beam antenna and the spot beam antenna in a navigational satellite system is disclosed. A prescribed satellite maneuver is used to increase the accuracy of the predicted satellite attitude... | 05/22/2007 |
| 7221316 | Control segment-based lever-arm correction via curve fitting for high accuracy navigation A method and apparatus for estimating a lever arm correction between the wide beam antenna and the spot beam antenna in a navigational satellite system is disclosed. A prescribed satellite maneuver is used to increase the accuracy of the predicted satellite attitude... | 05/22/2007 |
| 7221239 | Variable power divider A variable power divider and method can vary the RF power between ports in a high power and multi-carrier RF environment, such as is used in controlling signals sent and received in a base station antenna. The variable power divider can include a single-control phas... | 05/22/2007 |
| 7218902 | Antenna for communication with a satellite A telecommunication system uses a satellite antenna showing on the horizontal plane, a sufficiently narrow radiation lobe to discriminate two adjacent satellites and showing on the vertical plane, a sufficiently narrow vertical lobe to ensure an adequate gain, but s... | 05/15/2007 |
| 7215657 | Radio base station and frame configuration method using TDMA scheme and SDMA scheme In a radio base station, a plurality of time division multiplexed frames are transmitted through a plurality of space dividing beams such that it becomes possible for the radio base station to realize the radio communications with different radio terminals at the sa... | 05/08/2007 |
| 7215954 | Resource allocation method for multi-platform communication system A mobile wireless communications system including a plurality of individual transponding nodes of various types, all in communication with a central processing hub. A local user signal is processed by the central processing hub and radiated through multiple paths to... | 05/08/2007 |
| 7212830 | Position detection method, position detection system, and position detection server equipment A position detection method employed in a position detection system for detecting the position of a terminal of a radio communication system is provided which determines propagation times of a signal between the terminal and a plurality of access points located arou... | 05/01/2007 |
