Matches 1 - 18 out of 18

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US20090232494 OPTICAL NETWORK, MONITORING UNIT AND MONITORING METHOD  
An optical network having a tree-like structure with a main line and a plurality of branches, at least two of the branches comprising a monitoring unit for upstream signalling to the main line,...
US20050084266 Method for optical coding, optical corder and ocdma network architecture  
The invention relates to a method for optical coding of a broadband signal, to an optical coder. In order to enable an efficient increase in the number of codes for an OCDMA system, the method...
US20100091990 OCDM-BASED ALL OPTICAL MULTI-LEVEL SECURITY  
A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected...
US20090220232 Code division multiplex communication system  
A code division multiplex (CDM) communication system transmits frames including a preamble and its end bit pattern followed by a CDM signal and its end bit pattern in respective time slots. A...
US20090208213 Code division multiplex signal receiving apparatus and code division multiplex transmitting and receiving system  
In a code division multiplex transmitting and receiving system, the transmitting apparatus inserts a clock signal in the code division multiplex signal. The clock signal has a frequency equal to a...
US20090202246 Passive optical network communication system  
A passive optical network communication system includes a number of subscribers' units connected to a central line termination unit through a passive optical coupler. The line termination unit...
US20100074620 RECEIVER FOR A MODULATED LIGHT SIGNAL AND METHOD FOR RECEIVING A MODULATED LIGHT SIGNAL  
The invention relates to receiving of a modulated light signal from a lighting device, particularly from a solid state lighting (SSL) device. It is an object of the present invention to provide a...
US20100080559 Synchronized code division multiplexing communication method and synchronized code division multiplexing communication system  
A synchronized CDM communication system performs 1-to-N communication by CDM between a central office and first to N-th optical network units (ONU). The synchronized CDM communication system adds...
US20090175621 Optical code division multiplexing module and method  
An optical code division multiplexing module includes a superstructured fiber Bragg grating having equally spaced unit fiber Bragg gratings that convert an optical pulse into an optical chip train...
US20070223927 Optical Pulse Time Spreader and Optical Code Division Multiplexing Transmission Device  
The ratio P/W between the peak value P and the subpeak value W of the autocorrelation waveform, and the ratio P/C between the peak value P of the autocorrelation waveform and the maximum peak...
US20090257750 Optical code division multiplex communication method, system, and module  
An optical communication system uses superstructured fiber Bragg gratings (SSFBGs) to encode and decode an optical pulse signal transmitted between two optical communication devices. Each SSFBG...
US20070177874 Optical access network system  
An optical access network system capable of transmitting and receiving high-speed signals and which allows the number of subscribers to be increased without increasing the number of wavelengths...
US20110013909 Optical Code Division Multiplexing Access System  
Problem An object of the present invention is to provide an optical code division multiple access system which is used by many people. Means for Solving The above problem is solved by an optical...
US20100215370 OPTICAL CODE DIVISION MULTIPLEX SIGNAL GENERATOR  
An optical code division multiplexing signal generator provided with an optical pulse light source, a first encoder to an Nth encoder, a first optical modulator to an Nth optical modulator, and a...
US20070122153 Optical code division multiplexing transmission/reception method and optical code division multiplexing transmission/reception device  
A transmission unit comprises an optical pulse train generation unit, first channel encoded optical pulse signal generation unit, second channel encoded optical pulse signal generation unit, third...
US20120076497 Method and Apparatus for Loading, Detecting, and Monitoring Channel-Associated Optical Signals  
A method and apparatus for loading, detecting, and monitoring channel-associated signals are provided. Channel-associated signals are identified with spread spectrum codes in the electrical...
US20110076008 Optical code division multiplexing communication system and method for correcting failure of the same  
An OCDM communication system and a method for correcting failure of the same are provided. In the system, encoders and decoders are provided respectively for channels. Each encoder, including an...
US20110069958 OPTICAL FREE SPACE DATA TRANSMISSION  
The invention relates to an aircraft data communication system as well as an aircraft comprising such a data communication system, in particular a wireless optical communication system inside an...
Matches 1 - 18 out of 18