| Patents for H04J 14 - Optical multiplex systems (27,009) |
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| 03/03/1998 | US5724166 Information sharing method for a plurality of nodes in communication system and communication system |
| 03/03/1998 | US5724165 Fault-tolerant optical routing switch |
| 03/03/1998 | US5724164 Continuously tunable laser |
| 02/26/1998 | WO1998008322A1 Improvements in or relating to optical add/drop wavelength division multiplex systems |
| 02/26/1998 | WO1998008317A1 Circuit arrangement for the operation of wavelength division multiplexing |
| 02/26/1998 | WO1998008138A1 Optical fiber communication system using optical phase conjugate, apparatus applicable to the system and its manufacturing method |
| 02/26/1998 | CA2231628A1 Improvements in or relating to optical add/drop wavelength division multiplex systems |
| 02/25/1998 | EP0617852B1 Apparatus and method for controlling an extinction ratio of a laser diode over temperature |
| 02/24/1998 | US5721796 Optical fiber cross connect with active routing for wavelength multiplexing and demultiplexing |
| 02/24/1998 | US5721635 Optical fiber amplifier and optical amplifier repeater |
| 02/17/1998 | US5719971 Strain based optical fiber systems |
| 02/17/1998 | US5719874 Time-division-multiplexing method and apparatus |
| 02/17/1998 | US5719697 Method and apparatus for combining add/drop optical signal lines from a plurality of branching units |
| 02/17/1998 | US5719696 High capacity optical fiber network |
| 02/12/1998 | WO1998006192A1 Spectral equalizer using reconfigurable holographic filter |
| 02/12/1998 | WO1998006191A2 Automatic feedback gain control in a doped fiber amplifier |
| 02/12/1998 | WO1998005988A1 Optical wavelength multiplexing unit |
| 02/12/1998 | DE19633921C1 Schaltungsanordnung für den Betrieb von Wellenlängenmultiplexsystemen Circuit arrangement for the operation of wavelength-division multiplexing systems |
| 02/12/1998 | CA2261873A1 Automatic feedback gain control in a doped fiber amplifier |
| 02/11/1998 | EP0823160A1 Multiple reflection multiplexer and demultiplexer |
| 02/10/1998 | US5717796 Optical fiber transmission system utilizing a line switched ring to provide protection |
| 02/10/1998 | US5717795 Optical wavelength division multiplexed network system |
| 02/10/1998 | US5717510 Optimized optical transmission system for high capacity transmission |
| 02/05/1998 | WO1998005134A1 Bidirectional multichannel optical telecommunication system |
| 02/05/1998 | WO1998005133A1 Device for adding and dropping optical signals |
| 02/05/1998 | WO1998004944A1 Optical multiplexer/demultiplexer |
| 02/05/1998 | WO1998004943A1 Optical module for access networks to wide band communication systems and relevant production method |
| 02/05/1998 | CA2262607A1 Bidirectional multichannel optical telecommunication system |
| 02/05/1998 | CA2261918A1 Device for adding and dropping optical signals |
| 02/04/1998 | EP0822680A2 Negotiation of bandwidth in a telecommunications network |
| 02/03/1998 | US5715076 Remodulating channel selectors for WDM optical communication systems |
| 02/03/1998 | US5715074 Duplex switching apparatus |
| 01/29/1998 | WO1998004058A1 Optical network |
| 01/29/1998 | WO1998004056A1 Fault-tolerant optical routing switch |
| 01/28/1998 | EP0821509A2 Network system and communication method |
| 01/28/1998 | EP0821499A2 Transmission of D-channels in telecommunications systems |
| 01/28/1998 | EP0820666A1 Optical multichannel system |
| 01/28/1998 | CN1171683A 光传输系统 The optical transmission system |
| 01/27/1998 | US5712936 Hybrid bi-directional three color wave division multiplexer and method using same |
| 01/27/1998 | US5712932 Dynamically reconfigurable WDM optical communication systems with optical routing systems |
| 01/27/1998 | US5712717 High isolation, optical add-drop multiplexer |
| 01/27/1998 | US5712716 Telecommunication system and method for wavelength-division multiplexing transmissions with a controlled separation of the outgoing channels and capable of determining the optical signal/noise ratio |
| 01/25/1998 | CA2208620A1 Transmission of d-channels in telecommunications systems |
| 01/22/1998 | DE19700682A1 Optische Add/Drop-Schaltung mit Lichtleitergitter Optical add / drop circuit having optical fiber grating |
| 01/21/1998 | EP0820166A2 Optical transmission system and optical branching apparatus |
| 01/21/1998 | EP0819344A1 Optical network and arrangement and method in such network |
| 01/21/1998 | EP0819260A1 Multi-wavelength filtering device using optical fiber bragg grating |
| 01/21/1998 | EP0533843B1 Tunable light source and fibre optical systems with tunable light source |
| 01/20/1998 | US5710659 For amplifying an information signal |
| 01/20/1998 | US5710653 Linear multi-output optical transmitter system |
| 01/20/1998 | US5710650 Dispersion-reducing multiple wavelength division multiplexing optical fiber transceiver and methods for using and assembling same |
| 01/20/1998 | US5710649 Apparatus and methods for nulling non-random timing jitter in the transmission of digital optical signals |
| 01/15/1998 | DE19628321C1 Multiplex method for two sub=carriers |
| 01/14/1998 | EP0818902A2 Telecommunication networks |
| 01/14/1998 | EP0818897A2 Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus |
| 01/14/1998 | EP0818895A2 Optically amplifying transmission system |
| 01/14/1998 | EP0818894A2 Optical signal tranmsitting apparatus and optical transmission system having such an optical signal transmitting apparatus |
| 01/14/1998 | EP0818859A1 Wavelength monitoring and control assembly for WDM optical transmission systems |
| 01/14/1998 | EP0818091A1 Dark pulse generation and transmission |
| 01/14/1998 | EP0818089A1 Optical node in an optical bus network |
| 01/14/1998 | CN1170485A Optical add drop multiplex |
| 01/14/1998 | CN1170286A Signal light outputting apparatus and optical transmission system having signal light outputting apparatus |
| 01/14/1998 | CN1170143A Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus |
| 01/07/1998 | EP0817416A2 Method for sub-carrier multiplexed optical signal transmission and apparatus for same |
| 01/07/1998 | EP0817415A2 Wavelength-division-multiplexing optical amplifier device |
| 01/07/1998 | CN1169810A Method and apparatus for random in-slot multi-address insertion with collision detection in cable telephoue system |
| 01/06/1998 | US5706375 Variable-attenuation tunable optical router |
| 01/06/1998 | US5706125 Optical signal amplifying circuit |
| 01/06/1998 | US5706111 Optical communications network |
| 01/06/1998 | CA2025521C Dynamically responsive catv system with shared fiber optic link |
| 12/31/1997 | WO1997050204A1 Optical tdma network |
| 12/31/1997 | WO1997050203A1 Optical transmission systems using optical amplifiers and wavelength division multiplexing |
| 12/31/1997 | WO1997050157A1 Optical amplifier modules |
| 12/31/1997 | WO1997050009A1 Hybrid bi-directional three-color wave division multiplexer |
| 12/31/1997 | WO1997045972A3 Method for structuring of digital data which can be transferred in both directions on a passive optical network (pon) in a pon tdma system |
| 12/31/1997 | CN1169222A All-optical processing in communications system |
| 12/30/1997 | US5703708 Adjustable optical delay line |
| 12/30/1997 | CA2027816C Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band |
| 12/29/1997 | EP0814629A2 Optical fiber cross connect with active routing for wavelength multiplexing and demultiplexing |
| 12/29/1997 | EP0813797A2 Linear multi-output optical transmitter system |
| 12/24/1997 | WO1997049248A1 Wavelength division multiplexing system |
| 12/24/1997 | CN1168581A Method and apparatus for monitoring and correcting individual wavelength channel parameters in multi-channel wavelength division multiplexer system |
| 12/23/1997 | US5701194 Amplified telecommunication system for wavelength-division multiplexing transmissions capable of limiting variations in the output power |
| 12/23/1997 | US5701186 Optical cable TV system |
| 12/23/1997 | CA2092298C Passive optical network |
| 12/23/1997 | CA2092297C Passive optical network |
| 12/18/1997 | WO1997048197A3 Communication system with multicarrier telephony transport |
| 12/18/1997 | WO1997048197A2 Communication system with multicarrier telephony transport |
| 12/18/1997 | WO1997034193A3 All-optical bit phase sensing |
| 12/17/1997 | EP0813272A2 Wavelength-changeable light source capable of changing wavelength of output light, optical communication network using the same and wavelength control method for controlling wavelength of output light of the same |
| 12/16/1997 | US5699177 Communication method in network system for performing information transmission among terminal equipments using light beams of a plurality of wavelengths, terminal equipment used in the method and network system using the method |
| 12/16/1997 | US5699081 Apparatus and method for automatically provisioning power on a per channel basis in a communications transmission system |
| 12/16/1997 | CA2071493C Passive optical network |
| 12/10/1997 | EP0812078A2 Optical communication system and optical amplifier |
| 12/10/1997 | EP0811280A1 Optical amplifier arrangement |
| 12/10/1997 | CN1167379A 光通信系统及光放大器 Optical communication systems and optical amplifiers |
| 12/10/1997 | CN1167352A Light amplifier, light amplifying method and light transmission system using it |
| 12/10/1997 | CN1167269A Controller for controlling light-changable attenuator |
| 12/09/1997 | US5696615 Wavelength division multiplexed optical communication systems employing uniform gain optical amplifiers |
| 12/09/1997 | US5696614 Optical wavelength multiplex transmission method and optical dispersion compensation method |