Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
07/1998
07/22/1998EP0854602A1 Optical demultiplexing device and communication system including such a device
07/22/1998EP0854601A1 System and method of telecommunication with wavelength division multiplexing comprising a demultiplexer
07/22/1998EP0854379A2 All-optical timing recovery
07/21/1998US5784506 Frequency-encoded optical CDMA transmission system and optical receiver therefor
07/21/1998US5784185 For a node in an optical tdma network
07/21/1998US5784184 WDM Optical communication systems with remodulators and remodulating channel selectors
07/21/1998US5784170 Apparatus for generating quasi equally spaced frequencies using an optical frequency shifter in a multi-channel transmission system
07/16/1998WO1998031184A1 Hybrid wavelength-interchanging cross-connect
07/16/1998WO1998031119A1 Method and device for network protection
07/16/1998WO1998031080A1 Vcsel-based multi-wavelength transmitter and receiver modules for serial and parallel optical links
07/16/1998CA2277117A1 Hybrid wavelength-interchanging cross-connect
07/15/1998EP0853396A2 Optical transmission system including optical repeaters with selectively enabled gain equalizers contained therein and including an add/drop apparatus with a plurality of individually selectable filters
07/15/1998EP0787395B1 Decision-making process for point-to-multipoint networks
07/15/1998CA2226904A1 System and method of telecommunication with wavelength division multiplexing comprising a demultiplexer
07/14/1998US5781677 Magnetically tunable optical fiber gratings
07/14/1998US5781673 WDM optical fiber communication system with improved dispersion compensation
07/14/1998US5781335 Circuit arrangement for optical frequency conversion
07/14/1998CA2123220C Optical processing system
07/14/1998CA2096771C Optical demultiplexing system
07/09/1998WO1998017043A3 Massively parallel processor networks with optical express channels
07/08/1998EP0852437A2 Optical crossbar network using wavelenght division multiplexing and optical crossbar exchange
07/07/1998US5778118 Optical add-drop multiplexers for WDM optical communication systems
07/07/1998US5777762 Network system for performing bidirectional transmission, and node device and transmission control method used in the system
07/02/1998WO1998028927A2 Establishing a wireless link connecting a central terminal and a subscriber terminal of a wireless telecommunications system
07/02/1998CA2273270A1 Establishing a wireless link connecting a central terminal and a subscriber terminal of a wireless telecommunications system
07/01/1998EP0851617A2 Optical arrangement for amplifying WDM signals
07/01/1998EP0850520A1 Method for independently controlling the wavelength component powers in an optical wavelength division multiplexed transmission system
07/01/1998EP0850430A1 Wavelength selective grating assisted optical couplers
07/01/1998EP0823160A4 Multiple reflection multiplexer and demultiplexer
07/01/1998EP0507799B1 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
07/01/1998CN1186577A Optical multichannel system
06/1998
06/30/1998US5774606 Optical fiber transmission system with a passive optical router
06/30/1998US5774246 Apparatus for demultiplexing an optical digital signal
06/30/1998US5774244 Optical communications networks
06/30/1998US5774243 Control method of selecting wavelength of optical filter, wavelength control method of output light from light outputting apparatus, wavelength division multiplexing method in optical communication system and method for correcting relation between control
06/30/1998CA2068252C Wavelength-assignable optical communication system
06/25/1998WO1998019409A3 High-performance parallel processors based on star-coupled wavelength division multiplexing optical interconnects
06/24/1998EP0849968A2 Optical communication system using wavelenght-division multiplexed light
06/24/1998EP0849906A2 Optical time division demultiplexing apparatus and demultiplexed signal switching method as well as optical time division multiplex transmission system
06/24/1998EP0849622A2 All-optical sampling by modulating a pulse train
06/24/1998EP0848873A1 Optical communication system
06/24/1998CN1185688A Light time decomposition multiplex device and signal switching method and light time division multiplex transmission system thereof
06/23/1998US5771112 Reconfigurable device for insertion-extraction of wavelengths
06/23/1998US5771111 Optical network
06/18/1998DE19754148A1 Optisches Wellenlängenfilter und optischer Demultiplexer The optical wavelength filter and optical demultiplexer
06/18/1998DE19752944A1 Optisches Wellenlängenfilter und Demultiplexer The optical wavelength filter and demultiplexer
06/17/1998EP0848514A2 Wavelength division multiplex optical transmitter capable of supressing degradation of optical SN
06/17/1998CN1185254A Dark pulse generation and transmission
06/17/1998CN1185068A Optical wavelength multiplexing and demulatiplexing device and optical transmission system using same
06/17/1998CN1185067A Crosstalk suppression in multipatch optical amplifier
06/16/1998US5768269 Apparatus and method for establishing frame synchronization in distributed digital data communication systems
06/16/1998US5768026 Dichroic mirror for separating/synthesizing light with a plurality of wavelengths and optical apparatus and detecting method using the same
06/16/1998US5768000 Wavelength multiplexing optical transmission device
06/16/1998US5767998 Wavelength-division multiplexed communication system utilizing optical solitons
06/16/1998US5767996 Optical transmission system
06/16/1998US5767995 System and methods for assessing the suitability of analog lasers for broadband access applications
06/11/1998WO1998025365A2 Inter-ring cross-connect for survivable multi-wavelength optical communication networks
06/10/1998EP0847214A2 Optical divider
06/10/1998EP0847158A2 An optical wavelength multiplexing and demultiplexing device and an optical transmission system using the same
06/10/1998EP0847152A2 Optical transmitter system
06/10/1998EP0847151A2 All optical RF signal channelizer
06/10/1998EP0561918B1 Optical communications system
06/10/1998CN1184572A Optical node in an optical bus network
06/09/1998US5764821 Large capacity local access network
06/09/1998US5764405 Lossless optical transmission system architecture with non-failing optical amplifiers
06/09/1998US5764404 Wavelength-division-multiplexing optical amplifier
06/04/1998WO1998016018A3 Wavelength division multiplexed signal amplifier
06/03/1998CN1183683A Optical transmitter, terminal-station apparatus having optical transmitter, and optical communication system
06/02/1998US5761239 Method and apparatus for despreading spread spectrum signals
06/02/1998US5760941 System and method for performing optical code division multiple access communication using bipolar codes
06/02/1998US5760937 Optical demultiplexer
06/02/1998US5760935 Optical communications network
06/02/1998US5760934 Ring network for transmitting wavelength-multiplexed informations
05/1998
05/28/1998WO1998023057A1 High capacity spread spectrum optical communications system
05/27/1998EP0844757A2 Branching system with optical add drop multiplexing function
05/27/1998EP0844756A2 Optical communication system and transmitting device
05/27/1998EP0844752A2 Automatic dispersion compensating optical transmission system
05/27/1998EP0844751A2 Optical transmitter, terminal-station apparatus having the optical transmitter and optical communication system, monitoring the optical transmitted signal
05/26/1998US5757847 Method and apparatus for decoding a phase encoded signal
05/26/1998US5757526 Optical communication network and method for optically detecting a fault
05/20/1998EP0843435A2 Time division demultiplexing using selective raman amplification
05/20/1998EP0842576A1 Signal routing for fibre optic networks
05/20/1998EP0842575A1 Improvements in or relating to optical add/drop wavelength division multiplex systems
05/20/1998EP0842574A1 Add/drop multiplexer
05/20/1998DE19647789A1 Planar optical waveguide with Bragg grid
05/19/1998US5754941 Point-to-multipoint broadband services drop with multiple time slot return channel for customer premises equipment served by fiber optic telecommunication system employing STS-based transmission format containing asynchronous transfer mode cells
05/19/1998US5754585 Method and apparatus for serial noncoherent correlation of a spread spectrum signal
05/19/1998US5754584 Non-coherent spread-spectrum continuous-phase modulation communication system
05/19/1998US5754555 Subscriber network arrangement for connecting subscribers to a telephone network
05/19/1998US5754322 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques
05/19/1998US5754321 Add/drop optical circuit for a wavelength-division multiplexed network
05/19/1998CA2219539A1 Planar optical waveguide, planar optical waveguide with bragg grating, and method of fabricating such a planar optical waveguide
05/13/1998EP0841764A2 Crosstalk suppression in a multipath optical amplifier
05/13/1998CN1181647A Erbium doped optical fiber amplifier for automatically tracing and filtering wavelength of transmitted light and its operation method
05/13/1998CN1181514A Davice and method to suppress Q-switching in optical amplifying device
05/12/1998US5751872 Wavelength demultiplexer
05/12/1998US5751704 Technique for minimizing the variance of interference in packetized interference-limited wireless communication systems
05/12/1998US5751458 Optical double transmission system
05/12/1998US5751456 Multiwavelength add/drop multiplexer
05/12/1998US5751455 Optical transmission system and optical network terminals used therein
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