Patents
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
01/1995
01/17/1995US5383051 Compact-size optical amplifier
01/17/1995US5383046 Supervisory and control signal transmitting system for use in optically amplifying repeaters system
01/17/1995US5383045 Code word recognition unit and use thereof
01/17/1995US5383044 Systems, methods and apparatus for transmitting radio frequency remote control signals
01/17/1995US5383043 Omni-directional infrared sensing circuit
01/17/1995US5383015 Optical time domain reflectometry measurements on a multi-branch optical network using multiwavelength pass filters
01/17/1995US5382920 Circuit arrangement for an optical receiver
01/17/1995US5382786 Integrated photodetector with moving destination circuit
01/17/1995CA2030640C Periodic array with a nearly ideal element pattern
01/17/1995CA2014552C Optical repeater and optical network using the same
01/11/1995EP0633706A2 Optical packet synchronization circuit
01/11/1995EP0633672A1 Optical transmitter for transmitting intensity and phase modulated light beams
01/11/1995EP0632942A1 Process for allotting transmission time slots in a passive optical network.
01/11/1995EP0632941A1 Optical receiver
01/11/1995EP0611493A4 Method and apparatus to compensate for distortion in optical transmission systems.
01/11/1995CN2187352Y Hand remote-control dual-purpose stepless voltage-regulating multiple-way switch
01/10/1995US5381257 Simultaneous data communication and fiber perturbation detection system
01/10/1995CA1333932C Modulated retroreflector system
01/08/1995CA2116254A1 Optical packet synchronization circuit
01/04/1995EP0632608A1 Optical emitter for common transmission of analog and digital signals
01/04/1995EP0632607A1 Automatic laser shut-off with protection against unintentional reconnection
01/04/1995EP0476091B1 Bit and frame synchronizing unit for an access node in an optical transmission device
01/03/1995US5379357 Method and apparatus for polarized optical telecommunications using ultrasonic modulation means
01/03/1995US5379148 Transmission line
01/03/1995US5379145 Laser transmitter for light wave (fiber optic) communication espectially of AM modulated CATV signals having means . . . against damage
01/03/1995US5379144 Optical transmitter
01/03/1995US5379143 Optical regenerative-repeater system
01/03/1995US5379141 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
01/03/1995US5379034 Apparatus and method of radio communication from a submerged underwater vehicle
01/03/1995US5378937 Equalizer for optical communication systems
01/03/1995CA2032549C Drop testing in fiber to the home systems
01/03/1995CA1333818C Switching node for a communications switching network
01/02/1995CA2126404A1 Fiber-optic amplifier with a facility for monitoring the pump power and input power
12/1994
12/28/1994EP0631401A1 Method and apparatus for alignment in a wireless communication system
12/27/1994US5377165 Communication system for submarines
12/27/1994US5377035 Wavelength division multiplexed fiber optic link for RF polarization diversity receiver
12/22/1994WO1994029974A1 Apparatus for adapting an electrical communications port to an optical communications port
12/21/1994EP0630124A1 Process of temporal chromatic dispersion, dispersive optical device and fiberoptic transmission system using this device
12/21/1994EP0630123A1 Device for reshaping a train of optical pulses and device for recovering a periodic signal synchronised to a train of modulated optical pulses
12/21/1994EP0630122A1 Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and polarization dependent loss
12/21/1994EP0630121A1 Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss
12/21/1994EP0629881A2 Infrared beam steering system
12/21/1994EP0629316A1 Optical self-heterodyne remote antenna system
12/20/1994US5375182 Techniques for planar alignment of high speed electro-optical signal translator components
12/20/1994US5375007 Optical distribution system
12/20/1994US5375004 Light connecting device and method of driving the same
12/14/1994EP0629099A2 Optical network
12/14/1994EP0629068A1 4B6B coding scheme
12/14/1994EP0629061A1 Optical receiving system
12/14/1994EP0629058A1 Optical wavelength selection control system in optical networks
12/14/1994EP0629057A1 Optical soliton transmission system using optical amplifiers
12/14/1994EP0629042A1 Optical transmission system
12/14/1994EP0629029A1 Driver for optical transmitter
12/14/1994EP0495855B1 Optical receiver
12/14/1994EP0445232B1 Fiber optic link noise measurement and optimization system
12/14/1994EP0411108B1 Optical neural network and training method
12/13/1994US5373389 Method for linearizing an unbalanced Mach Zehnder optical frequency discriminator
12/13/1994US5373388 AC coupled fiber optic receiver with DC coupled characteristics
12/13/1994US5373387 Method for controlling the amplitude of an optical signal
12/13/1994US5373386 Transmission/reception circuit in a passive optical telecommunication system
12/13/1994US5373385 Method and apparatus for reduction of optical communication system impairments
12/13/1994US5373384 Semiconductor light source with non-linear compensation means within a predistortion circuit
12/13/1994US5373383 Optical carrier filtering for signal/noise and dynamic range improvement
12/13/1994US5373382 System of long-distance digital transmission by optical fiber with compensation for distortions at source of transmission
12/13/1994US5373381 Terahertz repetition rate optical computing systems, and communication systems and logic elements using cross-phase modulation based optical processors
12/13/1994US5373152 Resonance-type optical receiver circuit having a maximum amplifier input controlled by using an amplifier feedback and its method of receiving
12/09/1994CA2119224A1 Apparatus for simultaneously detecting a plurality of discrete laser modulation frequencies
12/08/1994WO1994028690A1 Cellular radio system with centralized located base stations and distributed antenna units
12/08/1994WO1994028671A1 Method and apparatus for providing power to a coaxial cable network
12/08/1994WO1994028648A1 Reduction of interferometric noise in an optical network
12/08/1994WO1994028647A1 Arrangement for monitoring a light-guide transmission section
12/08/1994WO1994028646A1 Equivalent circuit process for a transmission device for the bidirectional transmission of digital signals and arrangement for implementing the process
12/08/1994WO1994028456A1 Frequency-selective optical switch using polarization rotation
12/08/1994WO1994028282A1 Remote control for a plug-dropping head
12/08/1994DE4402831A1 Zweiweg-Übertragungssystem unter Verwendung eines einzigen optischen Pfades Two-way communication system using a single optical path
12/07/1994EP0627639A1 Optical fiber for wavelength division multiplexing
12/07/1994EP0572457A4 Optical communications system and method for transmitting information through a single optical waveguide.
12/06/1994US5371815 Low-loss dual-mode optical fiber compensators
12/06/1994US5371763 Packet mode digital data receiver
12/06/1994US5371755 Optical transmission module
12/06/1994US5371625 System for optically transmitting digital communications over an optical fiber with dispersion at the operating wavelength
12/06/1994US5371623 High bit rate infrared communication system for overcoming multipath
12/06/1994US5371622 Coherent optical telecommunication network wherein each send/receive terminal can simultaneously communicate with more than one other send/receive terminal
12/06/1994US5371354 Resonance-type optical receiver circuit and method of receiving light wave
12/06/1994CA2124900A1 Optical network
12/06/1994CA2057311C Transmission system for the polarisation-insensitive transmission of signals
12/01/1994DE4317243A1 Coupling circuit
11/1994
11/30/1994EP0626768A1 High capacity optical fiber network
11/30/1994CN1095874A Automatic fault tolerant photoelectric repeater for computer network
11/30/1994CN1095820A Pixel control circuitry for spatial light modulator
11/29/1994US5369719 Optical device with an optical coupler for effecting light branching and/or combining and an optical amplifier
11/29/1994US5369656 Inverted drive design for VCSEL-based optical interconnects
11/29/1994US5369522 Modulation system and method with third order intermodulation distortion reduction
11/29/1994US5369520 Optical regeneration circuit
11/29/1994US5369518 Optical communication system and method electrical power transmission for thereof
11/29/1994US5369517 Optical subscriber network transmission system
11/29/1994US5369516 Optical communication network system and communication method using the same
11/29/1994US5369515 Node for loop-type optical LAN and a loop-type optical LAN using the same
11/29/1994US5369350 Optical parallel receiver
11/23/1994EP0625835A1 Optical transmission system with a laser diode