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| Number | Title | Issue Date |
| 7761009 | Optical amplifiers in a free space laser communication system Disclosed is a novel free space optical communication system comprising an optical amplifier configured to amplify an optical signal received from a fiber optic cable, a transmitter coupled to the optical amplifier and configured to transmit the amplified optical si... | 07/20/2010 |
| 7657182 | Liquid lens optical transmitter system An optical transmission apparatus is provided in which high optical output power is secured in an optical transmitter, the fine adjustment of the optical axis is unnecessary, and the propagation range of the optical output signal can be adaptively changed. A diffusi... | 02/02/2010 |
| 7474856 | Method and device for producing an optical link with laser pulses A method and device produce an optical link with laser pulses between an emitter of the pulses and a receiver of the pulses. The optical link is used by a locating device for locating a body moving at constant speed away from the locating device. The locating device... | 01/06/2009 |
| 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 intermediate electrical signal, which contains both the data encoded in ... | 07/29/2008 |
| 7343098 | Fiber optic phased array and associated method for accommodating atmospheric perturbations with phase and amplitude control A fiber optic phased array and control method are provided for controllably adjusting the phase and amplitude of the optical signals emitted by a plurality of fiber optic amplifiers to compensate for atmospheric turbulence. The fiber optic phased array also includes... | 03/11/2008 |
| 7330662 | System and method for remote optical digital networking of computing devices The extended range of optical data communication is enabled through the use of intermediary relay stations spaced fairly far apart. IRDA communicatiOn, as is well known, uses very short duration optical pulses to send data up to 1 Mbit/sec; this has the concomitant ... | 02/12/2008 |
| 7316519 | Paving member A paving member (2) comprising a surface (4) for being walked on, an image (6) below the surface (4), and a source of light for illuminating the paving member (2), the paving member (2) being of such a material and construct... | 01/08/2008 |
| 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 imaging system is aligned to a reference object in the acquisition imagi... | 10/30/2007 |
| 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 optical path. In one embodiment the adaptive optical power regulator adapt... | 10/23/2007 |
| 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 plurality of uniquely tagged optical beams through free space. The plurali... | 10/16/2007 |
| 7274876 | Integrated electrical/optical hybrid communication system with revertive hitless switch A system according to embodiments of the invention may include a first communication path that converts an optically-modulated source signal to a radio signal based on a detected degradation in a quality of a received optical signal, and a second communication path ... | 09/25/2007 |
| 7272322 | Modular free space optical (FSO) device and related methods A modular free space optical (FSO) communications device may include an adaptive optics (AO) module and an interchangeable optical relay (OR) module. More particularly, the AO module may include an AO housing and at least one AO device carried thereby. Also, the int... | 09/18/2007 |
| 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 efficiency/high power optical source such as an optical magnetron or a ... | 08/14/2007 |
| 7256709 | Meter with IrDA port A meter is provided of the type used for recording data primarily related to power and/or energy use. The meter includes an IrDA port for wirelessly transmitting and receiving data to and from the meter. Preferably, the IrDA port operates according to one or more of... | 08/14/2007 |
| 7236705 | Methods and systems for aligning and maintaining alignment of point-to-point transceivers in a network A digital data network uses network nodes incorporating infrared transceivers. Each node includes a plurality of infrared transceivers having transmitter and receiver optics designed to facilitate line-of-sight infrared optical communications in a residential or bus... | 06/26/2007 |
| 7233745 | Field device configured for wireless data communication Field devices comprising a transmitter and/or receiver for wireless data communication are provided. It is proposed to evaluate the energy available for wireless data communication in data transmitting or data receiving field devices prior to activation of the trans... | 06/19/2007 |
| 7224908 | Attenuation and calibration systems and methods for use with a laser detector in an optical communication system Systems and methods for use with an optical communication beam are 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. The system calibrates and controls... | 05/29/2007 |
| 7215890 | Free space optical (FSO) device providing power reduction features and related methods A free space optical (FSO) communications device may include a plurality of power supplies having different respective output voltages. The FSO communications device may further include an adaptive optics (AO) module including an AO housing and a deformable mirror c... | 05/08/2007 |
| 7209663 | Apparatus and method for repeating signal by using wireless optical transmission A repeating apparatus and method using wireless optical transmission is disclosed. The repeating apparatus includes a donor device for transmitting two identical copies of an optical signal by receiving a RF signal from a base station and electro-optic converting th... | 04/24/2007 |
| 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 while minimizing any safety risk to humans. Such a system includes mul... | 04/10/2007 |
| 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 comprises a first portion made of optical fiber and a second portion in w... | 04/03/2007 |
| 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 input. The enable/disable signal regulates asynchronous mode operation. ... | 02/06/2007 |
| 7123840 | Infrared signal communication system and method including transmission means having automatic gain control An Improved Infrared Signal Communication System and Method Including Transmission Means Having Automatic Gain Control is disclosed. Also disclosed is system and method that adjusts signal transmission power in response to incident signal power amplitude. The prefer... | 10/17/2006 |
| 7119680 | FSOC/radio intrusion detection system Certain exemplary embodiments provide a method comprising sensing an intruder within a predetermined vicinity of a Free Space Optical Communication (FSOC) system; and reducing an emitted power of the FSOC system. Certain exemplary embodiments provide a system compri... | 10/10/2006 |
| 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 from transceivers at two different locations. Each beam may not see ... | 09/26/2006 |
| 7110678 | Hybrid wireless optical and radio frequency communication link A hybrid wireless optical and radio frequency (RF) communication link utilizes parallel free-space optical and RF paths for transmitting data and control and status information. The optical link provides the primary path for the data, and the RF link provides a conc... | 09/19/2006 |
| 7096177 | Multiprocessor array A multiprocessor array with a first shadow register unit (3) which operates within a first clock domain, at least one second shadow register unit (11) which operates within a second clock domain, and a peripheral unit (17) which operates within ... | 08/22/2006 |
| 7092636 | Optical network employing erbium-doped fiber amplifiers A point-to-multipoint bi-directional wide area telecommunications network employing atmospheric optical communication. The network comprises a primary transceiver unit, a plurality of subscriber transceiver units and an optical router. The primary transceiver unit m... | 08/15/2006 |
| 7088256 | Portable electronic device and method of operation therefore A portable electronic device (100) comprises an attached device (190,195), a vibrator (175), and a processor (105) coupled between the attached device (190, 195) and the vibrator (175). The processor (105) is adapted ... | 08/08/2006 |
| 7079780 | Linearized optical link using a single Mach-Zehnder modulator and two optical carriers An improved analog optical system which provides improved dynamic range as well as sensitivity relative to known analog optical systems. The analog optical system includes a Mach-Zehnder modulator (MZM) operated with a low bias to improve sensitivity. In accordance ... | 07/18/2006 |
| 7072582 | Optical transmitter power setting using feedback A method and system for automatically setting output power levels of optical transmitters in an optical communications arrangement. The optical communications arrangement includes at least a first and a second node, wherein the transmitter of the first node is optic... | 07/04/2006 |
| 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 mirror driving unit which drives the mirror to an angle corresponding to t... | 06/06/2006 |
| 6995552 | Voltage modulator circuit to control light emission for non-invasive timing measurements An apparatus accurately measures the time difference between two signal edges by optically detecting the emission from a “beacon device” that is modulated as a function of time difference. Through the use of this modulation it is possible to perform timing measu... | 02/07/2006 |
| 6996505 | Methods, apparatus and computer program products for automatically generating nurbs models of triangulated surfaces using homeomorphisms Embodiments automatically generate an accurate network of watertight NURBS patches from polygonal models of objects while automatically detecting and preserving character lines thereon. These embodiments generate from an initial triangulation of the surface, a hiera... | 02/07/2006 |
| 6970651 | High-sensitivity tracking in free-space optical communication systems Apparatus and methods for implementing a high-power or high-sensitivity tracking mode of operation in a free-space optical communication system are disclosed. Functions of the high-power or high-sensitivity tracking mode may be implemented in response to one or more... | 11/29/2005 |
| 6944483 | Portable radio terminal with infrared communication function and communication method for portable radio terminal A portable radio terminal with an infrared communication function prevents consumption power from increasing when a radio communication function and an infrared communication function are used at a same time. A radio communication function section is judged whether ... | 09/13/2005 |
| 6931209 | Remote commander A remote commander in which a switching element connected in series to an infrared light-emitting diode is turned on and off in response to carrier pulses to energize the infrared light-emitting diode to generate an infrared remote control signal includes varying me... | 08/16/2005 |
| 6920289 | System and method for remote optical digital networking of computing devices This invention extends the range of optical data of mobile device by trading speed for distance as well as integrating a plurality of pulses over time to define a single bit of information. The present invention uses a number of integrated pulses to represent a sing... | 07/19/2005 |
| 6889009 | Integrated environmental control and management system for free-space optical communication systems A method of managing a free-space optical network includes monitoring environmental and weather conditions in the vicinity of one or more free-space optical links in the network. Data is gathered by environmental condition instruments, such as visibility meters, and... | 05/03/2005 |
| 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 electro-magnetic beam serves as a carrier for the return data. A method of enco... | 08/17/2004 |
