Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
06/1993
06/22/1993CA2000646C Switch for selectively switching optical wavelengths
06/20/1993CA2104103A1 Optical communications system and method for transmitting information through a single optical waveguide
06/17/1993DE4141114A1 Optical broadband transmission system esp. for cable TV - divides signal mixt. into four sub-bands of not more than one octave width for light waveguide transmission
06/16/1993EP0546705A1 Polarisation independent bragg grating for optical waveguides
06/15/1993US5220580 Remote-control system with a spread-spectrum transmission link
06/09/1993EP0507799A4 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
06/08/1993US5218423 Method and apparatus for generating a plurality of radiation beams from incident radiation in a multiple wavelength interferometer
06/02/1993EP0544564A1 Wide-band optical transmission device for a plurality of transient analogue signals
06/02/1993EP0544216A1 A node for loop-type optical LAN and loop-type optical LAN using the same
06/01/1993US5216532 Optical multiplexing
06/01/1993US5216529 Holographic code division multiple access
05/1993
05/27/1993CA2083783A1 Multiple wideband stealth analog signal optical transmission device
05/26/1993EP0543714A1 Optical fibre distribution apparatus
05/26/1993EP0543570A2 Optical transmission system equalizer
05/26/1993EP0543314A2 Optical signal equalizer for wavelength division multiplexed optical fiber systems
05/19/1993EP0541983A1 Optical local area network system and nodal apparatus used therein
05/18/1993US5212578 Selection of transmission facilities using optical wavelength division multiplexing
05/18/1993US5212577 Optical communication equipment and optical communication method
05/18/1993US5212534 Distance-measuring method and transmitting and receiving station for carrying out the same
05/04/1993US5208692 High bandwidth network based on wavelength division multiplexing
05/04/1993US5208691 Wavelength-time-space division switching system
04/1993
04/27/1993US5206920 Integrated optical arrangement for demultiplexing a plurality of different wavelength channels and the method of manufacture
04/27/1993US5206857 Apparatus and method for timing distribution over an asynchronous ring
04/20/1993US5204767 Pay-channel transmission system for CATV
04/14/1993EP0536819A1 Wavelength division multiplexer and demultiplexer
04/13/1993US5202782 Optical communication method and optical communication system
04/13/1993US5202780 Optical communication system for the subscriber area
04/07/1993EP0536041A1 Method for the dynamic allocation of subscribes to the central station of an optical communication network
04/07/1993EP0535858A2 Selection of transmission facilities using optical wavelength division multiplexing
04/05/1993CA2079765A1 Optical system for connecting subscriber terminals to a telecommunications network local exchange
03/1993
03/31/1993EP0534795A2 Method and apparatus for producing multiple light beams in a multiple wavelength interferometer
03/31/1993EP0534147A1 Optical frequency comb generator
03/31/1993EP0534146A2 Optical comb generator
03/31/1993EP0534145A2 Optical comb generator
03/31/1993EP0533843A1 Tunable light source and fibre optical systems with tunable light source
03/30/1993CA1315340C Control of optical systems
03/23/1993CA1314935C Optical communications network
03/18/1993DE4130048A1 Optical multiplexer and demultiplexer for optical fibre communications - has structured waveguide layer formed in surface of doped semiconductor substrate
03/17/1993EP0532021A2 Coherent subcarrier multiplexed optical communication system
03/16/1993US5195161 A silicon layer and silicon dioxide cladding layer
03/04/1993WO1993004543A1 Electrical-optical interface device
03/02/1993US5191625 Terminal for a frequency divided, optical communication system
03/02/1993US5191459 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
03/02/1993US5191458 Optical electronic multiplexing reflection sensor system
03/02/1993US5191457 Wdm optical communication wherein optical beams are modulated by channel discrimination signals of different frequencies by data signals
02/1993
02/23/1993US5189714 Optical wavelength filter device
02/23/1993US5189542 System for the optical switching of frequency multiplexed signals
02/23/1993US5189414 Network system for simultaneously coupling pairs of nodes
02/03/1993EP0526286A1 Process for transmission by optical fibre of a signal resulting from a sensor, in particular from an hydrophone
02/02/1993US5184240 De-multiplexer
02/02/1993CA1313430C Photonic switch architecture utilizing code and wavelength multiplexing
01/1993
01/26/1993US5182667 Method of receiving wavelength multiplex signals
01/20/1993EP0523921A1 Polarisation state insensitive optical discriminator
01/20/1993EP0523780A2 Coherent optical telecommunication network
01/13/1993EP0522379A2 Optical time multiplexing
01/13/1993EP0521953A1 Optical apparatus.
01/05/1993US5177630 Method and apparatus for generating and transferring high speed data for high speed testing applications
12/1992
12/30/1992EP0520494A2 System for transmitting data using wavelength division multiplexing
12/30/1992EP0519956A1 An optical multiplexer
12/22/1992US5173899 Tdma communications network of transmitting information between a central station and remote stations
12/22/1992US5173794 Communication system
12/16/1992CN1067143A Dynamic range enhancer
12/15/1992US5172258 Method and apparatus for high data rate fiber optic communication system
12/07/1992WO1992022151A1 Communications network and method
12/02/1992EP0515919A2 Light transmission system and method
11/1992
11/26/1992WO1992021179A1 Dynamic range enhancer
11/26/1992DE4116660A1 Optical data TV transmission system for subscriber connecting area with optical amplifiers
11/26/1992CA2109587A1 Dynamic range enhancer
11/17/1992US5165077 Optical drop-and-insert apparatus
11/17/1992CA2066946A1 Apparatus and method for synchronizing a plurality of remote transmission and receiving stations
11/11/1992EP0512642A1 Optical transceiver arrangement
11/10/1992US5162937 Optical cable television transmission system
11/09/1992CA2068126A1 Optical transceiver arrangement
11/04/1992EP0511786A2 Apparatus and method for timing distribution over an asynchronous ring
11/04/1992EP0368925B1 Light amplifier with ring-shaped guided beam, in particular ring laser diode
11/03/1992US5161153 Synchronous network
11/03/1992CA1309784C Wideband subcarrier multiplexed optical communication system operating over more than one octave
11/03/1992CA1309783C High performance subcarrier multiplexed optical communication system with modulation index exceeding unity
10/1992
10/31/1992CA2065554A1 Opto-electronic interface for decoding wave division multiplexed manchester gray coded binary signal
10/29/1992WO1992019051A1 A terminal for a frequency divided, optical communication system
10/28/1992CN1018882B Asychronous optical communication system
10/20/1992US5157530 Optical fiber system
10/14/1992EP0507799A1 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
10/07/1992EP0507508A2 Polarization multiplexing with solitons
10/06/1992US5153764 Control of optical systems
09/1992
09/30/1992EP0506567A1 Quickly reconfigurable wavelength division muliplexer
09/23/1992EP0504492A1 Device for combining different electrical signals by means of an optical carrier modulation
09/23/1992EP0504248A1 Optical fibre communications system.
09/22/1992US5150247 Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
09/08/1992US5146358 Optical communications system and method for transmitting information through a single optical waveguide
09/01/1992US5144467 Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals
09/01/1992US5144466 Optical fiber communication method and multimedia optical fiber network using the same
08/1992
08/26/1992EP0500452A1 Optical communication network
08/26/1992EP0295299B1 Electronically tuneable fiber-optic receiver for narrow band microwave signal reception
08/25/1992US5142532 Communication system
08/19/1992EP0499065A2 Optical transmission system for the subscriber connection area with optical amplifiers
08/18/1992US5140451 Aircraft signal distribution system
08/13/1992DE4104084A1 Optical data transmission system for subscriber connecting areas with optical amplifiers - involves central control with two-way TV and data signal exchange with star-star structure
08/05/1992EP0497668A1 An optical time multiplexer and an optical time demultiplexer
08/05/1992EP0497358A1 Integrated optical device for demultiplexing various channels of different wavelengths and method of manufacturing therefor