Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 16,297

Document Document Title
WO/2018/012863A1
The present invention relates to a next generation in-building relay system and method for providing a 5G service using a wideband in superhigh frequencies of 30-300 GHz in a building by sharing an optical cable already wired in the buil...  
WO/2018/010816A1
The present invention relates to a multi-channel IM-DD optical transceiver comprising at least one transmitter and a receiver, and a method for equalizing input samples at an adjusted sampling phase using a quality parameter linearly pro...  
WO/2018/013756A1
A system and method for improving for amplifying a multi-frequency radio signal by using high efficiency amplifiers to amplify one radio frequency carrier at a time. The system further improves performance by providing parallel communica...  
WO/2018/008154A1
This optical component (50) includes a first filter element (21), a second filter element (22), a reflective element (3), a first reflection structure, and a second reflection structure. The first filter element reflects a first optical ...  
WO/2018/003083A1
The communication device (1) comprises: an optical transmitter/receiver (12-1) for transmitting optical signals having a first optical frequency; and an optical transmitter/receiver (12-2) for transmitting optical signals having a second...  
WO/2018/003095A1
An ONU (2-1) according to the present invention is equipped with: a management control signal generation unit (211) that generates a control signal for requesting the assignment of a wavelength from an OLT; a modulation frequency selecti...  
WO/2018/006084A1
A telecommunications device (102) includes a first transceiver, a second transceiver, and a state monitor (124). The first transceiver communicates over a broadband link. The second transceiver communicates over a radio link (126). The r...  
WO/2018/005754A1
A proactive and non-obtrusive channel probing scheme is provided to accurately predict channel power, gain, and optical signal to noise ratio (OSNR) without disrupting the existing connections. In one example, using a probe signal with 5...  
WO/2017/220454A1
The present invention relates to an optical link, comprising an optical converter circuit (16) having an optoelectronic device (18) and circuitry (20) connected to the optoelectronic device (18). The optoelectronic device (18) has a plur...  
WO/2017/220040A1
An optical line terminal (OLT), comprising N adjustable modules, the adjustable modules including M adjustable transmitters wherein the number of tuning channels is greater than or equal to 2 and less than M×N, N and M being integers gr...  
WO/2017/217254A1
An optical signal relay apparatus relays a plurality of optical signals that have a plurality of respective bit rates and that are wavelength multiplexed. The optical signal relay apparatus is provided with: a separation unit that separa...  
WO/2017/217334A1
Provided is an optical fiber with a core showing the refractive index profile of a graded-index, the optical fiber capable of transmitting Z or more (Z is an integer of 2 or more) transmission modes. An α parameter is set to a value so ...  
WO/2017/215607A1
Provided are a channel management method and apparatus for a passive optical network (PON) port. The method comprises: when registering with an optical network unit, acquiring a configuration mode of the optical network unit; using pre-a...  
WO/2017/215380A1
A service adjustment method and apparatus for uplink/downlink of a service site, the method comprising: determining whether a service site is configured as a wavelength-independent site; acquiring used uplinks/downlinks of the service si...  
WO/2017/211413A1
The invention relates to an optical communication system and method, the system comprising at least two optical channels for communicating optical data signals; at least one optical filter arrangement (5, 50) for compensating distortions...  
WO/2017/213813A1
A communication system (200, 200a-e) includes a first and second trunk terminals (110, 110a-b), a plurality of communication trunks (222, 400), and power feed equipment (212). Each communication trunk couples the first trunk terminal to ...  
WO/2017/206294A1
As network traffic grows and more data needs to be transmitted through a network, it is desired to use optical switching systems that allow for switching between a large number of nodes. An optical switching system according to one embod...  
WO/2017/209803A1
One embodiment of the present invention provides an optical link coupling two nodes in an optical transport network. The optical link includes a fiber span, which includes a first optical fiber, a second optical fiber, and a splitter. Th...  
WO/2017/206683A1
Spatial division multiplexing (SDM) allows multiple optical signals to be multiplexed onto a single optical link. Performance of SDM systems may be improved by monitoring performance metrics indicative of crosstalk between the spatially ...  
WO/2017/210550A1
An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can...  
WO/2017/206306A1
The embodiment of the invention provides a data frame transmitting method comprising: receiving, from a first PON channel, a data frame sequence, wherein a data rate in the first PON channel is a sum of data rates in N second PON channel...  
WO/2017/201886A1
A communication system for two paths of terahertz waves, comprising: a terahertz wave generation module (10); a terahertz wave transmission channel (20) connected to the output port of the terahertz wave generation module (10); and a ter...  
WO/2017/204872A1
A specification of an intent that identifies a desired service and a reference architecture is received. The desired service is rendered to provide instructions for dispatch to a plurality of devices having roles. Rendering the desired s...  
WO/2017/205652A1
A high speed satellite-based laser communications system and method for communications between a satellite-based transmitter system and a ground-based receiver over a free space optical link. The satellite-based transmitter system includ...  
WO/2017/201757A1
Disclosed in embodiments of the invention are a service transmission method and a first transmission device. The method comprises: mapping n client signals all having a rate t to ms/t sub-load regions of m FlexO frames, wherein a payload...  
WO/2017/202204A1
The disclosure is directed to an optical telecommunications system which includes a central node and a plurality of user nodes. The central node provides the light necessary to enable communication between the user nodes. Within the cent...  
WO/2017/197978A1
A ranging method, an optical line terminal (OLT) and an optical network unit (ONU). The method comprises: an optical network unit (ONU) opening all receivers to receive downlink data, and after monitoring a registration request of an opt...  
WO/2017/193601A1
Disclosed is a transmission apparatus for an ultra-narrow band spectrum segmentation incoherent light source based on an FFP filter and an FFP-SOA in a WDM-PON, comprising a central station, a transmission optical fibre, a remote node an...  
WO/2017/193538A1
Disclosed is a signal generation method, which can determine specific magnitude values of various level amplitudes of PAM signals distributed at non-equal intervals, while generating the PAM signals. The method comprises: a signal transm...  
WO/2017/192894A1
A system for performing failover switches in an optical network, such as a time and wavelength division passive optical networks (TWDM PON) like NG-PON2, includes a backup optical line terminal (OLT) for backing up communications of a pr...  
WO/2017/190806A1
A network node (400) for use with a single-fiber bidirectional communication link comprises a filter (300). The filter (300) comprises at least four ports. A first port (301) is configured to communicate with the single-fiber in a west d...  
WO/2017/190331A1
A reconfigurable optical add/drop multiplexer, relating to the technical field of optical communications. The reconfigurable optical add/drop multiplexer comprises: an input component (101), a first wavelength dispersion component (102),...  
WO/2017/188030A1
Provided are an image processing device and an image processing method with which it is possible to read efficiently, with fewer calculation resources, a visible light communication signal including at least one of a spatial modulation s...  
WO/2017/185505A1
A channel adjustment method, apparatus and system. The method comprises: an optical line terminal (OLT) receives a channel binding capability parameter reported by an optical network unit (ONU) and supported by the ONU; the OLT determine...  
WO/2017/186098A1
An apparatus comprises: a processor configured to: select a first channel from among a plurality of channels in a network, and generate a first message assigning a first grant corresponding to the first channel; a transmitter coupled to ...  
WO/2017/189538A1
An arrayed waveguide grating (AWG) device for use in an optical transceiver is disclosed, and can de-multiplex an optical signal into N number of channel wavelengths. The AWG device can include an AWG chip, with the AWG chip providing a ...  
WO/2017/184860A1
Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, an optical line terminal (OLT) controller comprises: a first communications interface over which the OLT controller intera...  
WO/2017/177549A1
Disclosed are a passive optical network architecture, a method for the passive optical network architecture to implement data transmission, and an optical network device. The architecture comprises an optical line terminal (OLT) supporti...  
WO/2017/177550A1
A passive optical network architecture, a method for the passive optical network architecture to implement data transmission, and an optical network device. The architecture comprises an optical line terminal (OLT) supporting a plurality...  
WO/2017/173971A1
An OLT comprises: a memory; a processor coupled to the memory and configured to: determine each of a plurality of channels associated with an ONU, select a first channel from among the channels, and generate a first message comprising at...  
WO/2017/167199A1
A multiplexer comprises: an output circuit comprising a multiplexer output; and a first buffer coupled to the output circuit and comprising: a first selection input configured to receive a first selection signal; a first logical input co...  
WO/2017/170008A1
[Problem] To provide an excitation light source apparatus capable of assuring excellent optical transmission characteristics even when gain tilting occurs in an optical fiber transmission relay system that transmits WDM signal lights. [S...  
WO/2017/167400A1
A network node (400) for use as a hub node of a network that further comprises one or more remote nodes, wherein the network node (400) is coupled to at least first and second connections (410, 412) for communication with one or more rem...  
WO/2017/166546A1
Disclosed are a method and device for detecting a continuously-emitting optical network unit (ONU), and an optical line terminal (OLT). The method comprises: upon detecting an ONU fault alarm, fixedly allocating a timeslot to each ONU co...  
WO/2017/165561A1
In an example, a communication module includes an optical transmitter, an optical receiver, and a periodical filter. The optical transmitter is configured to emit an outbound optical signal. The optical receiver is configured to receive ...  
WO/2017/163993A1
[Problem] To provide an optical transmission system that is capable of improving transmission characteristics. [Solution] This optical transmission system is provided with an optical transmission apparatus 10 and an optical transmission ...  
WO/2017/157883A1
Disclosed is a receiver for receiving an optical signal comprising a plurality of carriers within a predetermined frequency band. The receiver comprises means for sampling and converting each of the carriers into a set of corresponding d...  
WO/2017/160902A1
A method and apparatus for compensating optical dispersion over an optical fiber are provided in fiber optic communications to increase a transmission distance by overcoming the optical dispersion caused by wavelength changes of light so...  
WO/2017/159519A1
In order to provide a feature with which it is possible to suppress the occurrence of an optical surge independently of the type of optical switch, there is provided an optical control device for processing inputted first light and outpu...  
WO/2017/161234A1
A coaxial transmitter optical subassembly (TOSA) including a ball lens may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes a laser package with a ball lens holder se...  

Matches 1 - 50 out of 16,297