Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
09/1995
09/08/1995WO1995024065A1 Unidirectional amplification for bi-directional transmission using wavelength-division multiplexing
09/06/1995EP0670642A1 Light-emitting apparatus capable of selecting polarization direction, optical communication system, and polarization modulation control method
09/06/1995EP0670641A1 Apparatus for detecting a light signal
09/06/1995CN1029719C Method for bidirectional digital data transmission on optical waveguide and device therefor
09/05/1995US5448675 Telecommunications distribution frame with tracing
09/05/1995US5448674 Article comprising a dispersion-compensating optical waveguide
09/05/1995US5448663 Optical coupler
09/05/1995US5448661 Logic device
09/05/1995US5448660 Wavelength selective optical switch
09/05/1995US5448629 Amplitude detection scheme for optical transmitter control
09/05/1995US5448393 Apparatus and method for referencing an optical receiver
09/05/1995US5448392 Process for the optical transmission of a multiplex of electrical carriers and apparatus for performing such a process
09/05/1995US5448391 Optical atmospheric link system
09/05/1995US5448389 Passive optical ring network
09/05/1995US5448388 Optical subscriber line system
09/05/1995US5448077 Monolithic optical emitter-detector having a control amplifier with a feedback signal
09/05/1995US5448076 Optically-coupled differential line driver generating an optical signal having at least three states
09/05/1995US5448052 Device and method for object identification using optical phase conjugation
09/05/1995CA2049141C Automatic adjustment of optical power output of a plurality of optical transmitters
08/1995
08/31/1995WO1995023461A1 Method and apparatus for optical wireless communication
08/31/1995WO1995023389A1 Method and device for acknowledgement
08/31/1995WO1995022884A2 Wideband square-law detector having a triangular frequency characteristic as well as a transmission system and a receiver including such a detector
08/31/1995DE4406527A1 Optical transmitter for telecommunications network
08/31/1995DE4406509A1 Bidirectional subscriber coupling network
08/31/1995DE19506275A1 Variable wavelength light source with wide adjustment range
08/30/1995EP0669731A1 Optical transmission system with PM/AM conversion
08/30/1995EP0669730A2 Optical amplifier and optical communication system provided with the optical amplifier
08/30/1995EP0669029A1 Receiver polling
08/30/1995CN2206522Y Infrared multichannel remote-control switch for lamps and lanterns
08/29/1995US5446812 Improving signal to noise ratio in an optical transmission system
08/29/1995US5446768 Configuration detection apparatus for data link
08/29/1995US5446725 Method of changing over path switch in optical transmission device
08/29/1995US5446574 System and method for dispersion compensation in fibre optic high speed systems
08/29/1995US5446573 All-optical regenerator
08/29/1995US5446571 Manchester code optical code recognition unit
08/26/1995CA2142527A1 Light detector using reverse biased photodiodes with dark current compensation
08/24/1995DE19506380A1 Optical PLL using correlation with clock signal
08/23/1995EP0668676A1 Initial measurement of TDMA systems with a passive optical network
08/23/1995EP0668675A2 Multi-channel optical fiber communication system
08/23/1995EP0668674A2 Optical wavelength division multiplexed network system
08/23/1995EP0668672A1 Optical communication system with polarisation scrambler
08/23/1995EP0668671A1 Optical fiber system and method for overcoming the effects of polarization gain anisotropy in a fiber amplifier
08/23/1995EP0668670A1 Receiving system having a large dynamic range
08/23/1995EP0668520A2 Article comprising a dispersion-compensating optical waveguide
08/23/1995EP0668515A1 Integrated optical coupler with one input port and 2n ouput ports
08/23/1995EP0667971A1 Method and device for acknowledgement of transmitted information
08/22/1995US5444727 Laser head
08/22/1995US5444710 Telecommunications systems
08/22/1995US5444564 Optoelectronic controlled RF matching circuit
08/22/1995US5444563 Method and arrangement to convert an optical data signal from a multi mode fibre to a corresponding signal into a signal mode fibre
08/22/1995US5444562 Apparatus for transmitting an intensity-modulated light signal
08/22/1995US5444561 Optical transmission apparatus
08/22/1995US5444560 Optical clock recovery
08/22/1995US5444238 Device for assessing the transmission quality of an optical amplifier equipment
08/19/1995CA2142771A1 Polarization scrambler optical communication system
08/19/1995CA2142651A1 Integrated optical coupler with one input port and 2 output ports
08/17/1995WO1995022212A1 Optical time domain reflectometry
08/17/1995WO1995022211A1 Method and device for driving a radiation emitting device
08/17/1995WO1995022070A1 Optical device with phased array
08/17/1995DE4404756A1 Integrated optical signal transmission structure including two lasers
08/16/1995EP0667696A1 Access protocol
08/16/1995EP0667690A2 Optical wavelength division multiplexer for high speed, protocol-independent serial data sources
08/16/1995EP0667659A2 Optoelectronic controlled RF matching circuit
08/16/1995CN2205607Y Multifunction remote control commercial power switch
08/15/1995US5442479 Fiber-optic amplifier with a facility for monitoring the pump power and input power
08/15/1995US5442476 Optical communication method
08/15/1995US5442474 Self-routing optical communication node using Sagnac gates
08/15/1995US5442473 Optical telecommunications method
08/15/1995US5442472 Fiber optic status monitoring system
08/10/1995WO1995021371A1 Circuit arrangement for receiving light signals
08/10/1995DE4403982A1 Schaltungsanordnung zum Empfangen von Lichtsignalen Circuit arrangement for receiving light signals
08/10/1995DE4402642A1 Opto-electronic arrangement locating obstacles within defined area
08/10/1995DE19503164A1 Optically coupled data switching system and handset cradle switch
08/09/1995EP0666658A1 An optical regenerator and an optical transmission system
08/09/1995EP0666657A1 Circuit for light signal receiver
08/09/1995EP0666656A1 Free space optical communication apparatus
08/09/1995EP0666485A1 Optical channel adding/dropping filter
08/08/1995US5440655 Optical fiber connector bypass device and method using same
08/08/1995US5440559 Portable wireless communication device
08/08/1995US5440420 Optical amplifier
08/08/1995US5440418 Method and apparatus for alarm surveillance for an optical transmission system
08/08/1995US5440417 System for spectrum-sliced fiber amplifier light for multi-channel wavelength-division-multiplexed applications
08/08/1995US5440416 Optical network comprising a compact wavelength-dividing component
08/08/1995US5440415 Optical successive modulation-muliplexing for fiber optical network
08/08/1995US5440414 Adaptive polarization diversity detection scheme for coherent communications and interferometric fiber sensors
08/08/1995CA2049290C Radio having optical controls
08/08/1995CA2031870C Device and a method for distinguishing faults employed in an optical transmission system
08/03/1995WO1995020845A1 Infrared data transmission system
08/02/1995EP0665660A1 Synchronized etalon filters
08/02/1995EP0506732B1 Passive optical ring network
08/01/1995US5438578 Light-frequency control apparatus
08/01/1995US5438445 Optical wavelength multiplexing communication system
08/01/1995US5438444 Optical routing system
08/01/1995US5438210 Optical isolation connections using integrated circuit techniques
08/01/1995CA2029052C Tone spacing and power level monitor for fsk lightwave systems
07/1995
07/27/1995WO1995020301A1 Method and apparatus for controlling an electro-optical switch
07/27/1995WO1995020275A1 Ultra high bit rate all optical communication system
07/26/1995EP0664624A2 Method and device for transmission and switching of packets in an optical network
07/26/1995EP0664621A1 Optical fiber RF signal distribution system
07/26/1995EP0664591A2 Diode lasertransmitter with burst control
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