Patent application number | Description | Published |
20080297194 | RECONFIGURABLE NETWORK COMPONENT LAYERS - A method for configuring an electronics device having reconfigurable network component layers is disclosed. The method selects a first group of pixels from at least one of the reconfigurable network component layers to form a network component on a substrate of the electronics device and activates the network component in at least one plane of the device substrate using a plurality of micro-electromechanical system (MEMS) switches adjacent to the first group of selected pixels. The method adjusts a first shape of the activated network component for the electronics device using the reconfigurable network component layers. | 12-04-2008 |
20090022049 | NOVEL SECURITY ENHANCEMENT STRUCTURE FOR MIMO WIRELESS NETWORK - Techniques for enhancing the security and power efficiency of a multiple-input-multiple-output (MIMO) communication system are provided. In one embodiment, data packets are multiplexed by calculated spatial multiplexing matrixes (SMM). In one embodiment, the channel state information (CSI) is used to calculate a first transceiver's SMM to optimize channel efficiency. In another embodiment, the CSI is used to calculate a first transceiver's SMM to optimize channel secrecy. | 01-22-2009 |
20090318138 | SYSTEM AND METHOD FOR IN-FLIGHT WIRELESS COMMUNICATION - An aircraft radio comprises a transmitter configured to transmit wireless signals over a transmit frequency; a receiver configured to receive wireless signals over a receive frequency; and a processing unit configured to adjust the transmission frequency of the aircraft radio based on received sensor data in order to avoid interference with other wireless transmissions; wherein the processing unit is further configured to determine if a ground station is in range of the aircraft radio and to communicate directly with a second aircraft radio on another aircraft when a ground station is not in range. | 12-24-2009 |
20100245166 | TURBULENCE PREDICTION OVER EXTENDED RANGES - Methods and systems for predicting turbulence. An exemplary system decomposes near-range reflectivity data into multiple adaptive, three-dimensional Gaussian component functions and decomposes turbulence data into multiple adaptive, three-dimensional Gaussian component functions. The multiple adaptive, three-dimensional Gaussian component functions may include parameters, such as center position, amplitude, and dimensional standard deviations that are determined adaptively to maximally match the measured reflectivity. The multiple adaptive, three-dimensional Gaussian component functions may include parameters adjusted to maximally match the measured turbulence data. | 09-30-2010 |
20100245167 | SYSTEMS AND METHODS FOR GAUSSIAN DECOMPOSITION OF WEATHER RADAR DATA FOR COMMUNICATION - Exemplary methods and systems provide for processing weather data received from a weather radar system. An exemplary embodiment receives radar reflectivity data, decomposes the received radar reflectivity data into multiple adaptive Gaussian component functions, selects at least one parameter from the decomposed Gaussian component functions, generates the compressed weather radar display data based on the at least one selected parameter, and communicates the weather radar display data from the craft. | 09-30-2010 |
20120113823 | METHOD AND SYSTEM FOR VERY HIGH FREQUENCY DATA LINK CAPACITY ENHANCEMENT - A method to increase throughput over a very high frequency aeronautical network is provided. The method comprises simultaneously receiving at least two downlink signals at a plurality of ground antennas at an aeronautical ground station of the very high frequency aeronautical network, generating a channel-state-information matrix based on preambles, decomposing the simultaneously received at least two downlink signals into respective ones of the at least two downlink signals, and decoding each of the respective ones of the decomposed at least two downlink signals. The at least two downlink signals include respective preambles indicative of a channel state. Solutions to the channel-state-information matrix are generated by a mean-square-error algorithm to avoid singularities in the solutions. The decomposing of the simultaneously received at least two downlink signals is based on the generated channel-state-information matrix. | 05-10-2012 |
20130094470 | VDL2 Power Control - Power control of a digital datalink system within an aeronautical telecommunication network is described herein. According to embodiments, the system is configured to calculate the transmission power of an air-based communication station, based on the transmission power used by a ground-based communication station, wherein the transmission power of the air-based communication station is sot to a decibel level higher than or equal to the transmission power of the ground-based communication station. | 04-18-2013 |
20140118181 | TCAS BEARING ESTIMATION WITH REDUCED ANTENNA ELEMENTS - Systems and methods for calculating coherent bearing that allow one to reduce the number of TCAS antenna elements. In one embodiment, the bearing calculation takes into account signal-to-noise ratio (SNR) difference experienced from top and bottom antennas mounted on a vehicle. | 05-01-2014 |
Patent application number | Description | Published |
20100046376 | System and Method for Balancing Network Load in a Non-Transparent Multi-Hop Relay Network - A method for balancing network load includes determining an initial capacity of a wireless network comprising a plurality of endpoints coupled to a plurality of different types of access stations. The access stations comprise one or more relay stations and at least one base station. The method also includes identifying one or more endpoints that would increase capacity of the wireless network if switched to a different access station. The method further comprises tentatively switching the identified endpoints from their current access station to a different access station. The method additionally includes determining if the capacity of the wireless network is increased from the initial capacity by the tentative switch and, upon the capacity of the wireless network increasing, switching the identified endpoints from their current access station to a different access station. | 02-25-2010 |
20100054169 | System and Method for Allocating Resources in a Non-Transparent Multi-Hop Relay Network - A method for allocating resources in a wireless network includes establishing one or more links. The method also includes the following iterative steps: allocating a first number of slots to the relay links; dividing the first number of slots among the relay links; determining a representative relay data rate indicative of a data rate provided by one of the relay links for one of the multi-hop access links; allocating the second number of slots to the multi-hop access links; dividing the second number of slots among the multi-hop access links; determining the effective multi-hop data rate based on the minimum of the representative relay link data rate and the multi-hop data rate; allocating the third number of slots to the single-hop access links; dividing the third number of slots among the single-hop access links; and upon the single-hop data rate being approximately equal to the effective multi-hop data rate, provisioning the first, second and third number of slots. | 03-04-2010 |
20100054170 | Apparatus and Method for Allocating Resources in a Transparent Multi-Hop Relay Network - A method for allocating resources in a multi-hop relay network includes establishing one or more relay links, single-hop access links, and multi-hop access links. The method also includes iteratively repeating the following steps until a single-hop data rate is approximately equal to a multi-hop data rate: allocating a first number of slots to the multi-hop access links; dividing the first number of slots among the multi-hop access links; allocating a second number of slots to the relay links; allocating a third number of slots to the single-hop access links; dividing the third number of slots among the single-hop access links; and comparing the single-hop data rate to the multi-hop data rate. The method also includes, upon the single-hop data rate being approximately equal to the multi-hop data rate, provisioning the first number of slots to each of the multi-hop access links, the second number of slots to each of the relay links, and the third number of slots to each of the single-hop access links. | 03-04-2010 |
20100054171 | System and Method for Selecting an Access Link in a Multi-Hop Relay Network - A method for selecting an access link in a multi-hop relay network includes determining a first effective spectrum efficiency value of a first connection between an endpoint and a base station. The first effective spectrum efficiency value is indicative of the spectrum efficiency from the endpoint to the base station when the first connection is used. The method also includes determining a second effective spectrum efficiency value of a second connection between the endpoint and the base station via a relay station. The second effective spectrum efficiency value is indicative of the spectrum efficiency from the endpoint to the base station when the second connection is used. The method also includes comparing the first and second effective spectrum efficiency values. The method further includes establishing a connection using one of the first or second connections based on the comparison of the first and second effective spectrum efficiency values. | 03-04-2010 |
Patent application number | Description | Published |
20120154233 | SMOOTH-WALLED FEEDHORN - A device for at least one of receiving and transmitting electromagnetic radiation includes a feedhorn having a substantially smooth, electrically conducting inner surface extending from an open end to a feed end, the inner surface being substantially rotationally symmetrical about a longitudinal axis, wherein an orthogonal distance from a point on the longitudinal axis to the substantially smooth, electrically conducting inner surface increases monotonically as the point on the longitudinal axis is selected at successively greater distances from the feed end of the feedhorn towards the open end of the feedhorn such that a profile of the substantially smooth, electrically conducting inner surface of the feedhorn is monotonically increasing. The feedhorn has an operating bandwidth and the feedhorn provides a maximum of −30 dB cross polarization response over at least 15% of the operating bandwidth. A method of producing a feedhorn for receiving or transmitting electromagnetic radiation includes determining a profile of an inner surface of the feedhorn based on constraints required to achieve a plurality of operating parameters, providing a pre-machined feedhorn having an initial inner surface, and machining the initial inner surface of the pre-machined feedhorn to substantially match the profile determined to achieve the plurality of operating parameters for the feedhorn. The determining the profile includes a constraint for the profile to be a monotonically increasing profile relative to a rotational symmetry axis of the inner surface of the feedhorn going from a narrow end to a wide end of the feedhorn. | 06-21-2012 |
20150349426 | SMOOTH-WALLED FEEDHORN - A device for at least one of receiving and transmitting electromagnetic radiation includes a feedhorn having a substantially smooth, electrically conducting inner surface extending from an open end to a feed end, the inner surface being substantially rotationally symmetrical about a longitudinal axis, wherein an orthogonal distance from a point on the longitudinal axis to the substantially smooth, electrically conducting inner surface increases monotonically as the point on the longitudinal axis is selected at successively greater distances from the feed end of the feedhorn towards the open end of the feedhorn such that a profile of the substantially smooth, electrically conducting inner surface of the feedhorn is monotonically increasing. The feedhorn has an operating bandwidth and the feedhorn provides a maximum of −30 dB cross polarization response over at least 15% of the operating bandwidth. A method of producing a feedhorn for receiving or transmitting electromagnetic radiation includes determining a profile of an inner surface of the feedhorn based on constraints required to achieve a plurality of operating parameters, providing a pre-machined feedhorn having an initial inner surface, and machining the initial inner surface of the pre-machined feedhorn to substantially match the profile determined to achieve the plurality of operating parameters for the feedhorn. The determining the profile includes a constraint for the profile to be a monotonically increasing profile relative to a rotational symmetry axis of the inner surface of the feedhorn going from a narrow end to a wide end of the feedhorn. | 12-03-2015 |