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Satellite system

Subclass of:

398 - Optical communications

398118000 - OPTICAL COMMUNICATION OVER FREEE SPACE

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
398121000 Satellite system 16
20120099869Optical LNB capable of fast position-adjusting - An optical LNB capable of fast position-adjusting is employed in an LNBF. The optical LNB includes a down-converting device coupled to an OMT of the LNBF for down-converting a polarized signal for generating a first intermediate frequency signal, a branching device for branching the first intermediate frequency signal for generating a second and a third intermediate frequency signals, an electrical/optical converting device coupled to the branching device for converting the second intermediate frequency signal into an optical signal, and a power end for receiving power from a power supply and outputting the third intermediate frequency signal.04-26-2012
20130064551System and Method for Communication Between Two Communication Platforms - A system for communication between two communication platforms, including a near-earth returning platform and a remote platform. A bidirectional asymmetrical communication link is set up between the two platforms.03-14-2013
20140016941HIGH-BANDWIDTH OPTICAL COMMUNICATIONS RELAY ARCHITECTURE - A free space optical communication system (01-16-2014
20140270795Stratosphere Tethered Platform for multiple uses - The present invention is realized by apparatus and methods for placing a large rigid buoyant platform in the low stratosphere of earth's atmosphere at an altitude of about 20 km, above clouds, moisture, dust, and wind. The platform can serve several uses, either individually or in any combination. These uses include uninterrupted radio and light communications, radar and optical observation including very powerful radars and solar power electricity generation. Long, strong and light tethers connect the buoyant structure to the ground which hold it in position against wind forces. The electricity output from a photovoltaic array is used to power platform uses and can also be coupled to high voltage transmission lines which transmit power from the platform to the earth's surface during daylight hours. Power can also be transmitted up to the platform during darkness to power facilities mounted on the platform ensuring continuous operation.09-18-2014
20150349882WIRELESS DATA COMMUNICATION USING AIRBORNE LIGHTING AND GROUND SUPPORT SYSTEMS - A system for wireless optical data communications comprises a first gateway device including a processor onboard a first aircraft, and a first set of light sources onboard the aircraft in operative communication with the gateway device. The light sources comprise a plurality of light emitting diodes. A first optical receiver is onboard the aircraft and in operative communication with the gateway device. In a transmission mode, the gateway device is configured to monitor a databus onboard the aircraft for digital data selected for wireless optical transmission, encode the digital data selected for wireless optical transmission with a compatible optical modulation scheme, and broadcast the encoded digital data through modulated light emitted from the set of light sources. In a reception mode, the gateway device is configured to decode digital data from modulated light captured by the optical receiver from a wireless optical transmission from the ground or another aircraft.12-03-2015
20160164609OPTICAL TRANSMISSION - A spacecraft or satellite optical transmission apparatus (06-09-2016
398122000 Including alignment 3
20090324236METHOD AND SYSTEM FOR LASER BASED COMMUNICATION - Method and system for determining a point-ahead angle from a first spacecraft to a second spacecraft, each spacecraft having a laser communication (“lasercom”) terminal is provided If ephemeris data regarding the second spacecraft is unavailable to the first spacecraft while the second spacecraft is mobile, (a) obtaining attitude information regarding the first spacecraft; and (b) obtaining gimbal offload commands from a fast steering mirror and a first spacecraft telescope subsystem of the first spacecraft; wherein a point-ahead determination module receives the attitude information and the gimbal offload commands; and determining an estimate of the point-ahead angle from the first spacecraft to the second spacecraft based on the attitude information and the gimbal offload commands.12-31-2009
20140178078METHOD OF ELIMINATING OFFSET IN SPOT CENTROID DUE TO CROSSTALK - There is provided a method of eliminating an offset in a spot centroid due to crosstalk. A crosstalk matrix is used to characterize crosstalk characteristics of a multi-pixel spot-centroid detector. Left-multiplication of signals outputted from the multi-pixel spot-centroid detector, which are affected by the crosstalk, by an inverse matrix of the crosstalk matrix can result in a light-intensity-distribution signal with impacts of the crosstalk substantially removed. Based on this light-intensity-distribution signal, it is possible to derive the spot centroid, with the offset in the spot centroid due to the crosstalk substantially eliminated, resulting in an improved accuracy of the spot centroid detection, as compared with conventional methods.06-26-2014
20150125157HIGH BANDWIDTH OPTICAL LINKS FOR MICRO-SATELLITE SUPPORT - A method, systems, apparatus and device enable high bandwidth satellite communications. An onboard tracking detector, installed in a low-earth orbit satellite, detects a position of an incoming optical beam received/transmitted from a first ground station of one or more ground stations. Tracker electronics determine orientation information of the incoming optical beam based on the position. Control electronics receive the orientation information from the tracker electronics, and control a waveguide drive electronics. The waveguide drive electronics control a voltage that is provided to an electro-optic waveguide beam steering device. The electro-optic waveguide beam steering device steers an outgoing optical beam to one of the one or more ground stations based on the voltage.05-07-2015
398124000 Space to space 2
20140099122Using Predicted Movement to Maintain Optical-Communication Lock with Nearby Balloon - A balloon may include an optical-communication component, which may have a pointing axis. A pointing mechanism could be configured to adjust the pointing axis. The optical-communication component could be operable to communicate with a correspondent balloon via a free-space optical link. For example, the optical-communication component could include an optical receiver, transmitter, or transceiver. A controller could be configured to determine a predicted relative location of the correspondent balloon. The controller may control the pointing mechanism to adjust the pointing axis of the optical-communication component based on the predicted relative location so as to maintain the free-space optical link with the correspondent balloon.04-10-2014
20150071645HIGH-BANDWIDTH OPTICAL COMMUNICATIONS RELAY ARCHITECTURE - A free space optical communication system (03-12-2015
398125000 Space to ground or ground to space 5
20090028573MOBILE COMMUNICATIONS VIA AN OPTICAL SIGNAL DURING ADVERSE ATMOSPHERIC CONDITIONS - A communications system for wireless transceiving of information, comprising at least one multiple optical beam scanning array transceiver located in a satellite for wirelessly transceiving the information; and at least two terminals at diverse locations capable of wirelessly transceiving the information between the terminals and the satellite, and an apparatus for determining atmospheric conditions for use in adjusting the multiple beam scanning array transceiver parameters.01-29-2009
20130156439METHOD FOR OPTICAL DATA TRANSMISSION FROM LOW EARTH ORBIT TO EARTH AND CORRESPONDING COMMUNICATION SYSTEM - Optical communications system (06-20-2013
20140044434TRANSMITTER, RECEIVER, TRANSMISSION METHOD, RECEPTION METHOD AND COMMUNICATION SYSTEM - A transmitter includes an optical data modulation unit which modulates an optical carrier having a first frequency with a data signal and outputs the optical carrier as a signal light, an optical frequency shift unit which shifts and outputs the frequency of the signal light from the first frequency to a second frequency based on a predetermined frequency offset amount, and a frequency offset control unit which controls the frequency offset amount such that a harmonic component generated in the optical frequency shift unit does not overlap with a band of the data signal.02-13-2014
20150295646METHOD AND APPARATUS OF COMMUNICATION VIA SATELLITE - An apparatus for satellite communication comprising a plurality of kytoons, each kytoon of the plurality of kytoons includes a hub positioned within the kytoon, an adjustable spine that is connected to the hub and varies a diameter and volume of the kytoon, and first and second tether access tubes that are each open to the atmosphere at one end and are sealed to the hub of the kytoon at another end. The apparatus further comprises a plurality of tether segments including a first tether segment and a second tether segment, the first tether segment is connected to an anchor connected to the earth at one end of the first tether segment and to a first hub of a first kytoon at another end of the first tether segment, the first tether segment connected to the first hub through the first tether access tube of the first kytoon, and the second tether segment is connected to the first hub of the first kytoon at one end of the second tether segment, through the second tether access tube of the first kytoon, and to a second hub of a second kytoon at another end of the second tether segment through the first tether access tube of the second kytoon. The apparatus further comprises a pipe enclosed in the plurality of tether segments and that provides a lighter-than-atmospheric gas from a gas source to at least one kytoon of the plurality of kytoons so that the at least one kytoon is inflated with the lighter-than-atmospheric gas, a communication device connected to one of the kytoons, and a fiber optic cable enclosed in the plurality of tether segments and connected to the communication device.10-15-2015
20160043800DESIGN OF A FREE-SPACE OPTICAL COMMUNICATION MODULE FOR SMALL SATELLITES - Communication bottlenecks, particularly in the downlink direction, are a common problem for many CubeSat developers. As described herein, a CubeSat module for a CubeSat comprises an optical transmitter to transmit data to a remote terminal, a receiver to acquire an optical beacon from a remote terminal, and a fine-pointing module operably and directly coupleable to a coarse-pointing module of the CubeSat. The fine-pointing module is configured to point the optical transmitter toward the remote terminal with an accuracy range that overlaps with an accuracy range of the coarse-pointing module of the CubeSat so as to establish a communications link between the CubeSat and the remote terminal over a low-Earth-orbit (LEO) distance.02-11-2016
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