Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
11/1991
11/05/1991US5063595 Optical communications network
11/05/1991US5063559 Optimized wavelength-division-multiplexed lightwave communication system
11/05/1991CA2041747A1 Passive optical telecommunication system
10/1991
10/29/1991US5062155 Modulated light wave demodulator
10/29/1991US5062153 Reading device of polarimetric and interferometric sensors
10/23/1991EP0452895A1 Optical communication network system and communication method using the same
10/17/1991WO1991015906A1 Optical communications system
10/15/1991US5058102 Broadband optical communication system, particularly for the subscriber area
10/15/1991US5058101 Coherent detection loop distribution system
10/09/1991EP0450835A2 Optical multiplexing
10/08/1991CA1290474C Cross-connection of wavelength-division-multiplexed high speed channels
09/1991
09/27/1991WO1991014963A1 Optical apparatus
09/25/1991EP0448380A2 A de-multiplexer
09/25/1991EP0447752A2 WDM optical communication with optical beams modulated by channel discrimination signals
09/24/1991US5050952 Optical communications system for diplex or duplex transmission
09/17/1991US5050167 Timing extraction in multiplexed multichannel high speed fiber optic transmission system
09/14/1991WO1991014321A1 An optical multiplexer
09/14/1991CA2075293A1 Optical multiplexer
09/11/1991EP0446196A2 Method of transmitting binary information in an optical transmission network
09/11/1991EP0445364A2 Optical communications system
09/09/1991CA2037689A1 Method for transmitting binary information in an instant of some timeslots before the beginning of the transmission
09/04/1991EP0444348A2 Optimized wavelength-division-multiplexed lightwave communication system
09/03/1991US5046139 Optical receiver for subcarrier frequency division multiplexing signals
08/1991
08/27/1991US5043975 High bandwidth network based on wavelength division multiplexing
08/20/1991CA1287911C Multichannel, multihop lightwave communication network
08/14/1991CN1053869A Optical fibre telecommunications line with separate services channels
08/07/1991EP0440276A2 Optical fibre telecommunications line with separate service channels
07/1991
07/31/1991EP0438832A1 Coherent optical heterodyne transmission system
07/25/1991WO1991011867A1 Passive optical network
07/24/1991EP0438237A2 Apparatus and method for multiplexing fiber optic sensors
07/24/1991EP0438155A2 Optical communication equipment and optical communication method
07/24/1991EP0438153A2 Optical communication method and optical communication system
07/24/1991EP0438075A2 Optical cable television transmission system
07/24/1991EP0438022A2 Method for deskewing bits in a communication system using wavelength division multiplexing
07/24/1991EP0242367B1 Asynchronous communication system
07/23/1991US5034944 Optical fiber bus controller
07/18/1991DE4001039A1 Television optical cable transmission system - divides frequency multiplied electrical signal into bands of less than octave before conversion to optical signals
07/17/1991EP0437066A2 Passive tap network
07/16/1991US5031998 Polarization control on signal beams for principal-state bidirectional transmission through an optical fiber
07/16/1991US5031985 Optical switch system and apparatus
07/09/1991US5031188 Inline diplex lightwave transceiver
07/02/1991US5029240 Electronically tuneable fiber-optic receiver for narrow band microwave signal reception
07/02/1991US5028801 Apparatus and method for multiplexing fiber optic sensors
06/1991
06/26/1991EP0434236A2 Frequency division multiple access network
06/25/1991US5027434 Apparatus for bidirectional transmission of optical signals
06/09/1991WO1991009478A1 Optical fibre communications system
06/05/1991WO1991008631A1 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
05/1991
05/29/1991EP0429216A2 Hybrid optical isolator, circulator or switch, and systems utilizing same
05/29/1991DE3938856A1 Optical bus system with several subscriber stations - has two transmitters and receivers for at least part of subscriber stations
05/28/1991US5020152 Fault tolerant-fiber optic coupler/repeater for use in high speed data transmission and the like
05/28/1991US5020049 Optical sub-carrier multiplex television transmission system using a linear laser diode
05/25/1991WO1991008623A1 Passive optical network
05/14/1991US5016242 Microwave subcarrier generation for fiber optic systems
05/08/1991EP0426518A1 Method and circuit for the transmission of high speed data according to a quasi asynchronous mode
05/08/1991EP0425871A2 Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
05/08/1991CN1051278A 异步光通信系统 Asynchronous optical communication system
05/07/1991CA1283972C Adaptive antenne system for radio waves, especially microwaves
05/02/1991WO1991006161A1 Method and apparatus for simultaneously communicating a plurality of signals
05/01/1991CA2028988A1 High rate data transmission method and device using a quasi-asynchronous mode
04/1991
04/24/1991EP0423942A2 Synchronous network
04/23/1991US5010543 Optical multiplexing
04/23/1991US5010346 Electro-optical analog-to-digital converter and method for digitizing an analog signal
04/16/1991US5007693 Method for controlling polarizations of signal lights in an optical frequency division multiplex coherent communication system
04/16/1991CA1283229C High speed scrambling at lower clock speeds
04/16/1991CA1283196C Protocols for very high-speed optical lans
04/10/1991EP0421325A1 Asynchronous optical TDM-communication system
04/02/1991US5005166 Time and wavelength division switching system
03/1991
03/27/1991EP0419137A2 Dynamically responsive cable television system with shared fibre optic link
03/27/1991EP0419120A2 Optical multiplexing
03/27/1991EP0419119A2 Optical systems
03/27/1991EP0148266B1 Wavelength division multiplexing optical communications systems
03/22/1991CA2025437A1 Optical multiplexing
03/22/1991CA2025144A1 Optical systems
03/12/1991US4999831 Synchronous quantized subcarrier multiplexer for digital transport of video, voice and data
03/02/1991WO1991003753A1 Optical coupler
02/1991
02/13/1991EP0412543A2 Polarization control on signal beams for principal-state bidirectional transmission through an optical fiber
02/12/1991US4991975 Division multiplexing and demultiplexing means lightwave communication system comprising optical time
02/07/1991WO1991001603A1 Data transmission on optical networks
01/1991
01/30/1991EP0410712A1 Optical switch
01/29/1991US4989200 Coherent subcarrier multiplexed optical communication system
01/29/1991US4989199 Photonic switch architecture utilizing code and wavelength multiplexing
01/29/1991CA1279702C Optical telecommunications system using code division multiple access
01/22/1991CA1279414C Apparatus for discriminating an optical signal from others and an apparatus for tuning an optical wavelength filter used in the same
01/22/1991CA1279413C Optical wavelength-division multiplex transmission system with an optical filter for spontaneous emission noise
01/22/1991CA1279373C Simultaneous transmission of led and laser signals over single mode fiber
01/17/1991DE3935183A1 Cable TV and audio signal transmission system - has advance head end coupled by cables to group subscriber supplied by central station
01/16/1991CN1011277B Protocols for very high-speed optical lens
01/15/1991CA1279133C Wavelength sensitive optical devices
01/02/1991CA1278626C Asynchronous communications system
12/1990
12/27/1990EP0240512B1 Frequency referencing system and method
12/26/1990CN1011017B Method for transmitting optical signal in both directions through light guide
12/25/1990US4980891 Clocked optical regenerator and other optoelectronic functional circuits
12/25/1990US4979789 Continuous source scene projector
12/18/1990US4978189 Hybrid optical isolator, circulator or switch, and systems utilizing same
12/18/1990CA1278042C Optical bus communication system utilizing frame format signals
12/18/1990CA1278023C Monitoring and controlling radiation source stability
12/13/1990DE3918530A1 Optical cable TV transmission system
12/11/1990US4977593 Optical communications network
12/11/1990CA1277786C Optical signal processing
12/05/1990EP0400959A2 Broadband information communications network system with coherent optical data transmission lines
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