Matches 1 - 41 out of 41
Match Document Document Title
7609972 Acquisition, pointing, and tracking architecture for laser communication  
A technique for acquiring and tracking terminals in a free-space laser communication system involves exchanging beacon laser beams between the terminals to acquire and then track the terminals such...
7593641 System and method of free-space optical satellite communications  
A system and method of free-space optical satellite communications includes a ground station and transceiver for transmitting and receiving an optical communications signal. Adaptive optics at the...
7583899 Space optical transmission apparatus and space optical transmission system  
A space optical transmission apparatus is provided which achieves high-speed simultaneous space optical transmission with respect to a plurality of terminals. In the space optical transmission...
7486893 Dynamic optical interconnect system reference signal formation  
The disclosed technology provides a dynamic interconnection system which allows to couple a pair of optical beams carrying modulation information. In accordance with the disclosed technology, two...
7477846 Method of reducing control packet transmission rate for an optical wireless link  
A method that does not rely on signal strength for detecting the presence of a broken optical wireless link. The method controls the packet transfer rate in a manner that minimizes both network...
7450855 Optical detection apparatus and free-space optics communication apparatus  
There is provided an optical detection apparatus, comprising a light-receiving element, an optical system which forms a spot of light flux on a light-receiving surface of the light-receiving...
7406263 Combined wavefront sensor and data detector for a free space optical communications system with adaptive optics  
In an adaptive optics module, wavefront sensing and data detection are implemented in a single device. For example, an optical-to-electrical converter converts a data-encoded optical beam to an...
7391975 Method of synchronizing servo timing in an optical wireless link  
A technique for synchronizing the servo control systems between two optical wireless links (OWLs) that are in communication with one another. This synchronization allows the alignment in time of...
7343099 Free space optical (FSO) laser communication system employing fade mitigation measures based on laser beam speckle tracking and locking principles  
A free-space adaptive optical laser communication system having signal transmission and reception channels at all terminals in the communication system, wherein wavefront sensing and wavefront...
7292788 Multi-beam laser communications system and method  
A laser communications system includes a wide-field sensor, configured to detect a first set of laser communications sources within a first field of view, a narrow-field sensor includes a tracking...
7292789 Multi-channel wide-field laser communications method and apparatus  
A communications terminal includes a first aperture configured to receive laser signals from ground laser sources, pick-off mirrors configured to receive laser signals from mobile laser sources, an...
7289736 Adaptive optics imaging system with object acquisition capability  
An adaptive optics imaging system has an acquisition imaging subsystem to assist in initial acquisition and alignment of the system to a target object. A wavefront sensor in the adaptive optics...
7286766 Free space optical communication system with power level management  
A free space optical communication system includes an adaptive optical power regulator. The adaptive optical power regulator adapts to changes in effective loss associated with the free space...
7283751 Adaptive optical system compensating for phase fluctuations  
A method and apparatus for compensating for phase fluctuations incurred by an optical beam travelling through free space, especially a turbulent atmosphere. A transmitting station transmits a...
7257327 Wireless communication system with high efficiency/high power optical source  
An optical communication system is provided which includes an optical signal transmitter which communicates high bandwidth, high power frequencies. The optical signal transmitter includes a high...
7221874 Free space optical (FSO) device providing remote control features and related methods  
A modular free space optical (FSO) communications device may include an optical relay (OR) module and a base module. More particularly, the OR module may include an OR housing and at least one OR...
7203425 Optical wireless link  
An optical, line-of-sight modem. The modem includes a micro-mirror assembly including a micro-mirror and including an actuator for providing rotational movement to the micro-mirror, the...
7203424 Automatic laser power control in an optical communication system  
A system and method for use with an optical communication beam of light is disclosed. The system allows the beam of light to operate at an adequate power level that provides a robust optical link...
7200334 System for transmitting digital signals in a space vehicle  
The invention relates to a system for conveying digital signals inside a space vehicle between a transmitter and a receiver. In the invention, the link between the transmitter and the receiver...
7174099 System for regulating optical output power  
Systems and methods for regulating optical power are described. A system for regulating optical power includes a laser driver circuit that receives an enable/disable signal and a data modulator...
7133617 Reflection detection in an optical wireless link  
In an optical wireless network, where light beams are transmitted over-the-air, reflections of the transmitted light beams may cause a receiver of an optical wireless device to detect and...
7113707 Dynamic optical interconnect  
This invention provides a dynamic interconnection system which allows to couple a pair of optical beams carrying modulation information. In accordance with this invention, two optical beams emanate...
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...
7058307 Free-space optical communication apparatus and free-space optical communication system  
A free-space optical communication apparatus includes a storage unit which stores angle-setting information for the mirror for communicating with each of the plurality of other apparatuses, a...
6909850 Method and arrangement for establishing a connection between satellites  
Lightwaves ( 1 ), which carry data signals and beacon light, are used for establishing a connection between a receiver and a transmitter located remote from each other. An acquisition sensor ( 171...
6816112 Hybrid RF/optical acquisition and tracking system and method  
A hybrid optical and millimeter wave beam acquisition and tracking system and method. A host platform includes an INS and a GPS for generating geolocation data, optical and RF receivers, and a...
6778779 Full-duplex optical communication system  
A method of full-duplex electromagnetic communication wherein a pair of data modulation formats are selected for the forward and return data links respectively such that the forward data...
6643469 Method for improved wireless optical communication and frames for use in a wireless optical communication system  
Method for wireless optical communication between a transmitting station and a receiving station, whereby the transmitting station provides a Request-to-Send (RTS) frame to the receiving station to...
6304354 Laser satellite communication system  
A laser communication system adapted for use in a satellite communication system. The satellite carries a laser communication system. The laser communication system includes a plurality of active...
6297897 Method and arrangement for optical information transmission via satellites  
The instant invention relates to a method and an arrangement for optical information transmission via satellites by means of broadband optical modulation and reception technology. As a rule, the...
6195044 Laser crosslink satellite attitude determination system and method  
A laser crosslink attitude determination system using the payload laser crosslinks as the principal attitude sensor and thereby eliminating the need for additional high-cost, high performance...
6175451 Optical axis correcting apparatus and method of correcting optical axis  
An optical axis correcting apparatus for correcting the optical axes of light beams from a communicating party in an optical space transmission system that transmits and receives the light beams...
5448391 Optical atmospheric link system  
An optical atmospheric link device which is adapted to quickly correct the incident position of a light beam with high follow-up accuracy. Incident position detection signals are generated by an...
5282073 System of optical communications between moving stations and corresponding communications method  
In a system of optical communications that can be used by air or space vehicles, each station comprises at least one optical system covering a half space, this system comprising two twinned optical...
5218467 Multi-access laser communications transceiver system  
A satellite system for optical communications such as a multi-access laser transceiver system. Up to six low Earth orbiting satellites send satellite data to a geosynchronous satellite. The data is...
5119225 Multiple access communication system  
A multiple access communications system comprises a node spacecraft GEO and several user spacecraft LEO 1 to LEO n . Each user spacecraft LEO 1 to LEO n includes a transmit/receive terminal head...
5114227 Laser targeting system  
A laser targeting system comprises an airborne reconnaissance platform (1) disposed to conduct surveillance of enemy air, ground, and/or sea targets (5). The surveillance means (11) can be some...
4867560 Optical alignment system  
In systems such as satellite communication systems and laser machining systems in which accurate focusing of a communications beam or a machining laser beam is critical, a dual-beam optical...
4764982 Secure communication system  
A secure communication system uses narrow beam laser transmissions from a relay station high above the surface of the earth and another station which may be a submerged submarine. Position...
4236255 Rack entry vehicle communication system  
Improved apparatus for communicating information between a movable rack entry vehicle and a reference station by means of optical radiation, such as infrared radiation. A universal asynchronous...
3482099 TUNED STABLE LASER IN A COMMUNICATION SYSTEM  
Matches 1 - 41 out of 41