| Patents for H04J 14 - Optical multiplex systems (27,009) |
|---|
| 10/30/1999 | CA2270147A1 Fiber optic cables with wavelength selection features |
| 10/28/1999 | WO1999055035A1 Method and system for optical multichannel transmission using coherence division multiplexing with optical filtering |
| 10/28/1999 | WO1999055023A1 Methods and apparatus for selective attenuation in an optical communication using electrochromic material |
| 10/28/1999 | WO1999054764A1 Bidirectional optical wavelength multiplexer/divider |
| 10/28/1999 | DE19818783A1 Optisches Netzwerk Optical network |
| 10/27/1999 | EP0951765A1 Remodulators for wdm optical communication systems |
| 10/27/1999 | EP0951764A2 Switchable wavelength router |
| 10/27/1999 | EP0937346A4 Programmable wavelength router |
| 10/27/1999 | CN1233119A Time-delay distance finding method based on time-division multiple access passive optical-fiber network |
| 10/27/1999 | CN1233116A Optical transmission apparatus, optical transmission system,and optical terminal station |
| 10/26/1999 | US5974207 Article comprising a wavelength-selective add-drop multiplexer |
| 10/21/1999 | DE19839238A1 Parallel optical transmitter/receiver module for data communications enables larger and longer transfer of data by detecting and/or correcting time displacements between parallel data channels |
| 10/21/1999 | DE19816612A1 Monitor for testing performance of dense wavelength division multiplex multiple wavelength communication system |
| 10/20/1999 | EP0951196A2 Optical layer quasi-centralized restoration |
| 10/20/1999 | EP0950298A1 Method and device for network protection |
| 10/20/1999 | CN1232192A 光学放大器 Optical amplifiers |
| 10/19/1999 | US5970201 Power regulation in optical networks |
| 10/19/1999 | US5970198 Optically amplifying fiber and optical fiber amplifier |
| 10/19/1999 | US5969836 Method and apparatus for simultaneous transmission of digital telephony and analog video over a single optic fiber using wave division multiplexing |
| 10/16/1999 | CA2264338A1 Method for communication between earth stations using a satellite constellation |
| 10/14/1999 | WO1999052232A1 Wdm bidirectional optical transmission system improving channel spacing with interleaving |
| 10/14/1999 | WO1999041870A8 Self-synchronization of an optical packet network using seed pulses extracted from within the packets |
| 10/13/1999 | EP0949777A2 Path switched shared protection |
| 10/13/1999 | EP0949776A2 Optical transmitter, multiple wavelength optical transmitter and optical transmission method |
| 10/13/1999 | EP0949774A1 Subscriber optical communications system using bit-interleaved downlink channels |
| 10/13/1999 | EP0806079A4 Transmission and reception of cpm spread-spectrum communications |
| 10/12/1999 | US5966376 Apparatus and method for digital data transmission using orthogonal cyclic codes |
| 10/12/1999 | US5966237 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
| 10/12/1999 | US5966236 Optical signal channel counter and optical amplification device using the same |
| 10/12/1999 | US5966228 Optical transmission system and optical repeater |
| 10/12/1999 | CA2164073C Transmission wavelength control method permitting efficient wavelength multiplexing, optical communication method, optical transmitter, optical transmitter-receiver apparatus, andoptical communication system |
| 10/07/1999 | WO1999050979A2 Optical fibre amplifier having a controlled gain |
| 10/07/1999 | WO1999050938A1 Improved performance gain flattened edfa |
| 10/07/1999 | CA2326224A1 Optical fibre amplifier having a controlled gain |
| 10/07/1999 | CA2325730A1 Improved performance gain flattened edfa |
| 10/06/1999 | EP0948153A2 Optical transmission apparatus, optical transmission system, and optical terminal station |
| 10/06/1999 | EP0947119A2 Establishing a wireless link connecting a central terminal and a subscriber terminal of a wireless telecommunications system |
| 10/06/1999 | EP0835567B1 Add/drop multiplexer node |
| 10/06/1999 | CN1231087A 光网络 Optical Network |
| 10/05/1999 | US5963685 Cross-connection of wavelength-division-multiplexed high speed optical channels |
| 10/05/1999 | US5963586 Method and apparatus for parallel noncoherent correlation of a spread spectrum signal |
| 10/05/1999 | US5963349 Inexpensive single-fiber bidirectional data link |
| 10/05/1999 | US5963348 Method for assignment of wavelength channels in an optical bus network |
| 10/05/1999 | CA2166259C Optical network using multiplexed payload and oam signals |
| 10/05/1999 | CA2055309C Apparatus for the optical heterodyne reception of signals |
| 09/30/1999 | WO1999049605A1 Programmable optical add/drop multiplexer |
| 09/30/1999 | WO1999049601A1 Wdm transmission repeater, wdm transmission system and wdm transmission method |
| 09/30/1999 | WO1999049599A1 Mehods and apparatus for reducing four-wave mixing |
| 09/30/1999 | CA2323487A1 Programmable optical add/drop multiplexer |
| 09/30/1999 | CA2317599A1 Methods and apparatus for reducing four-wave mixing |
| 09/29/1999 | EP0946077A2 An optical switching apparatus using wavelength division multiplexing technology |
| 09/29/1999 | EP0946006A1 Method and apparatus for controlling the optical power of an optical wavelength division multiplexed transmission signal |
| 09/29/1999 | EP0945745A2 Multiplexors with a flat top spectral channel shape |
| 09/29/1999 | CN1230314A System with feedback controlled optical amplifiers |
| 09/29/1999 | CN1230313A Fault-tolerant optical routing switch |
| 09/28/1999 | US5960133 Wavelength-selective optical add/drop using tilting micro-mirrors |
| 09/28/1999 | US5959986 Lightwave transmission telecommunications system employing a stacked matrix architecture |
| 09/28/1999 | US5959766 Optical amplifier device |
| 09/28/1999 | US5959764 Wavelength converter, optically operational device and optical pulse phase detecting circuit |
| 09/28/1999 | US5959750 Method of upgrading transmission capacity by Raman amplification |
| 09/28/1999 | US5959749 Optical add/drop multiplexer/demultiplexer |
| 09/28/1999 | CA2181362C Interconnected passive optical networks |
| 09/26/1999 | CA2266967A1 An optical switching apparatus using wavelength division multiplexing technology |
| 09/22/1999 | EP0944192A2 Optical communication device |
| 09/22/1999 | EP0944189A2 Optical amplifier |
| 09/22/1999 | EP0944188A2 Optical amplifying apparatus for wavelength division multiplexed signals |
| 09/22/1999 | EP0943939A1 Optical add-drop multiplexer having an interferometer structure |
| 09/22/1999 | EP0943192A2 Method and apparatus for saturating an optical amplifier chain to prevent over amplification of a wavelength division multiplexed signal |
| 09/22/1999 | CN2340129Y Wave-division multiplaying device |
| 09/21/1999 | US5956440 Optical transmission line for wavelength division multiplexed optical signals |
| 09/21/1999 | US5956167 Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus |
| 09/21/1999 | US5956166 Wavelength division multiplexing optical transmission system and wavelength division multiplexing optical transmission method |
| 09/21/1999 | CA2168811C Multichannel optical fiber communications |
| 09/18/1999 | CA2232666A1 Multiplexors with a flat top spectral channel shape |
| 09/16/1999 | WO1999046951A1 Method for configuring and reconfiguring networks |
| 09/16/1999 | WO1999035523A8 Composite diffraction gratings for signal processing and optical control applications |
| 09/16/1999 | DE19810348A1 Method of configuring and reconfiguring networks |
| 09/15/1999 | EP0942549A2 Optical demultiplexer filter system to eliminate crosstalk sidelobes |
| 09/15/1999 | EP0942548A2 Trunk apparatus of a wavelength-division-multiplexing communication system for controlling a gain of an optical amplifier provided therein |
| 09/15/1999 | EP0941587A1 Optical transmission system with coherent optical time domain reflectometry |
| 09/15/1999 | EP0787390B1 All-optical processing in communications systems |
| 09/15/1999 | EP0776491B1 Polarization independent optical directional coupler wavelength tunable filters/receivers |
| 09/14/1999 | US5953470 Circuit for optical WDM system |
| 09/14/1999 | US5953370 Apparatus for receiving and correlating a spread spectrum signal |
| 09/14/1999 | US5953142 Variable delay apparatus for optical signals |
| 09/14/1999 | US5953141 Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering |
| 09/14/1999 | US5953139 Wavelength division multiplexing system |
| 09/14/1999 | US5953138 All-optical processing in communications systems |
| 09/14/1999 | CA2179186C Passive optical network for video on demand |
| 09/14/1999 | CA2135327C Large capacity multi-access wavelength division multiplexing packet network |
| 09/14/1999 | CA2118616C Optical network based on remote interrogation of terminal equipment |
| 09/10/1999 | WO1999045738A1 Optical add/drop wavelength switch |
| 09/10/1999 | WO1999045683A1 System and method for spectrally efficient transmission of digital data over optical fiber |
| 09/10/1999 | WO1999027673A9 A programmable add-drop module for use in an optical circuit |
| 09/10/1999 | WO1999014879A3 Wavelength-selective optical switching apparatus |
| 09/10/1999 | CA2320762A1 System and method for spectrally efficient transmission of digital data over optical fiber |
| 09/10/1999 | CA2320723A1 Optical add/drop wavelength switch |
| 09/08/1999 | EP0940940A2 Transmission method and communication system thereof |
| 09/08/1999 | EP0916198A4 Fault-tolerant optical routing switch |
| 09/08/1999 | EP0572457B1 Optical communications system and method for transmitting information through a single optical waveguide |