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Class 398/124 - Space to space


Subclass of Class 398 - Optical communications
Definition: Subject matter wherein the optical beam is propagated
No. of patents: 58
Last issue date: 02/21/2012


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NumberTitleIssue Date
8121487System and method for free space micro machined optical bench
An optical bench communicates light through free space in a plurality of trenches formed in the bench, each of the trenches formed by deep ion reactive etching and defined by two opposing side walls, such that the free space is between the opposing side walls. An ex...
02/21/2012
7409160Global gateway architecture for interconnecting regional satellites into a communication network
A satellite constellation has a plurality of network satellites that form a network. A gateway satellite is disposed adjacent to the network. The gateway satellites receive an optical signal from the network and converts the signal to an electrical signal. The gatew...
08/05/2008
7406263Combined 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 intermediate electrical signal, which contains both the data encoded in ...
07/29/2008
7391975Method 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 the various tasks to be assigned in a desired time period. The synchron...
06/24/2008
7373085Hybrid 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
7359639Airborne free space optical communication apparatus and method with subcarrier multiplexing
A free space laser communication system uses subcarrier multiplexing to prepare multiple data communication channels for impressing onto a laser carrier. Sending and receiving terminals mutually track to insure acquisition of the transmitted data signals. ...
04/15/2008
7340179Support of dual infrared remote signaling protocols
A system and method for supporting two infrared signaling protocols in a single computing device is provided. The computing system operates in a default mode unless a priority signaling request is generated by an application program. Priority signaling requests are ...
03/04/2008
7330661Method and apparatus for optical communication between devices
A method and apparatus for processing a data signal for transmission to a remote device transmits at least two synchronized copies of the data signal, in optical form, in different directions. To that end, the data signal first is synchronized to a clock signal to p...
02/12/2008
7311409Two axis independent driven single hinged gimbaled mirror beam steerer
A beam steerer comprising a mirror, a joint, and two linear actuators. The joint, which is attached to a periphery of the mirror is rotatable about two perpendicular axes. The linear actuators control rotational movement of the mirror about the two axes. A laser bea...
12/25/2007
7308203Free space optical data link for aircraft
The present invention is a method and system for transmitting data between two objects via a free space optical data link. In an exemplary aspect of the present invention, the method may start with a step in which a laser beam modulated with data is transmitted to t...
12/11/2007
7292789Multi-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 optical assembly configured to receive the laser communications sign...
11/06/2007
7292788Multi-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 portion and a control portion configured to receive laser communicati...
11/06/2007
7257327Wireless 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 efficiency/high power optical source such as an optical magnetron or a ...
08/14/2007
7203424Automatic 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 while minimizing any safety risk to humans. Such a system includes mul...
04/10/2007
7203425Optical 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 micro-mirror being controllable by predetermined control signals. The modem incl...
04/10/2007
7200334System 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 comprises a first portion made of optical fiber and a second portion in w...
04/03/2007
7167653Optical transceiver
An optical transceiver having a transmitter section and a receiver section formed on a substrate to be close to each other is provided, which suppresses the electrical and optical crosstalk between the transmitter section and the receiver section. The transceiver co...
01/23/2007
7162159Position demodulation through polarization of the transmitted beam in an optical wireless link
A method of eliminating the non-linearities associated with the remote feedback sensor, such as a quad position detector, used in a micro-electro-mechanical (MEM) mirror assembly. The incoming beam transmitted from a remote optical wireless link is first polarized, ...
01/09/2007
7158726Backbone interface, a terminal interface for communications in a space vehicle, and a communications network comprising such interfaces
The invention relates to a communications backbone interface between at least three members of a communications network for a space vehicle. In the invention, the interface combines various signals received at inlets, which signals may be analog, digital, and optica...
01/02/2007
7113707Dynamic 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 from transceivers at two different locations. Each beam may not see ...
09/26/2006
7103280Architecture 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
7078726Sealing of electronic device using absorbing layer for glue line
In one embodiment of the invention, a first absorbing layer is on a substrate and/or a second absorbing layer is on a heat-activated adhesive. If the IR source that supplies IR radiation is present on the substrate-side, then the absorption percentage of the substra...
07/18/2006
7058307Free-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 mirror driving unit which drives the mirror to an angle corresponding to t...
06/06/2006
6993260Interconnecting processing units of a stored program controlled system using free space optics
Internal communication signals in a stored program controlled system comprising a plurality of units configured to process signals are provided by a free space optical beam line which is proximal to all of the plurality of units. The free space beam line is configur...
01/31/2006
6978093Free space optical communication network
The present invention provides a method and network for communicating over free space links. The network includes a plurality of buildings, each housing at least one of a residence and a business. Pluralities of free-space optical links are established, where each o...
12/20/2005
6952530Integrated glass ceramic systems
Integrated glass ceramic spacecraft include a plurality of glass ceramic components including molded, tempered, annealed, and patterned glass ceramic components coupled together for forming a support structure or frame or housing through which is communicated optica...
10/04/2005
6945498Commercial experiment system in orbit
An orbital experiment system with different internal experiment locations within a reusable launch vehicle making daylong delivery trips to space. The experiments get access to the attributes of low earth orbit, the reusable launch vehicle's power and other subsyste...
09/20/2005
6934475Free-space optical communications using holographic conjugation
A beacon beam is transmitted from a receiver to a transmitter. The transmitter generates and transmits a conjugate beacon beam back to the receiver, where it is interfered with a local oscillator beam to form a hologram. The hologram is used to configure a spatial l...
08/23/2005
6889010Star topology network with fiber interconnect on chip
An optical transmission device configured as a central node, wherein each central node has dedicated pixels for receiving data and transmitting optical data so destination addressing is not required. The network is configured such that transmission on any particular...
05/03/2005
6842439Free space optical terminal with ad hoc network back-up and associated methods
A communication system includes a pair free space optical (FSO) terminals. The FSO terminals switch from a first operating mode to a second operating mode wherein the traffic is carried by an ad hoc network. The switching may be based upon a quality of service (QoS)...
01/11/2005
6839519Laser crosslink methods and apparatus
A laser crosslink apparatus includes an optical device (212, FIG. 5), a beam splitter (512), an acquisition channel and a tracking and communication channel. The acquisition channel includes a high density optical fiber bundle and an acquisition...
01/04/2005
6816682Global gateway architecture for interconnecting regional satellites into a communication network
A satellite constellation has a plurality of network satellites that form a network. A gateway satellite is disposed adjacent to the network. The gateway satellites receive an optical signal from the network and converts the signal to an electrical signal. The gatew...
11/09/2004
6804465Wireless optical system for multidirectional high bandwidth communications
This invention describes an optical communications system for optically networking computers and other devices together in a multi-user environment in a cost effective manner. This is accomplished through the use of low power (eye safe intensity) lasers, light emitt...
10/12/2004
6792212Spacecraft data acquisition and distribution interface
A spacecraft data acquisition system comprises a telemetry and command controller, a payload unit, and a bi-directional interface that couples the telemetry and command controller to the payload unit. The interface is a single bi-directional interface that is used t...
09/14/2004
6643469Method 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 announce the transmission of a data frame, the receiving ...
11/04/2003
6616352Optical transmission apparatus and bidirectional optical space transmission system using the same
A bidirectional optical space transmission system is made up of a pair of optical transmission apparatus. Each optical transmission apparatus comprises a signal generating circuit for generating a pilot signal, a multiplexing section for multiplexing the ...
09/09/2003
6347001Free-space laser communication system having six axes of movement
A free-space laser communication system having six axes of movement. The system includes a fine tracking and acquisition system comprising a low inertia steering mirror having two axes of movement which points the communication laser transmission optical ...
02/12/2002
6239889Optical signal power detection with signature bit pattern in WDM systems
The power of an optical signal (s1) travelling on a channel (λ1) of a WDM transmission system, is measured using a signature bit pattern (sBP1) which is inserted in the frame of the optical signal (s1). The pow...
05/29/2001
6239890Repairing undersea optical fiber transmission systems using soliton signals with wavelength division multiplexing
The invention provides a method of repairing an optical fiber transmission system using soliton signals and wavelength division multiplexing, in which the various wavelengths, λ1 to λn, of the multiplex are selected to ensure that ...
05/29/2001
6137609Over-the-horizon optical communications transceiver
An optical communications transceiver comprises a transmitter for transming a communications signal having at least two wavelengths and a receiver for concurrently detecting the communications signal on each wavelength. The receiver compares the data con...
10/24/2000
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