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9031411 Wavelength-division multiplexing (WDM) optical fiber network system  
A wavelength-division multiplexing (WDM) optical fiber network system is disclosed, which comprises a signal provider generating at least one set of wavelength signals of a plurality of different...
9031408 Method for fast wavelength division multiplexing (WDM) passive optical network (PON) initialization in heterogeneous networks  
A method provides advertisements to optical network units (ONUs) by an optical line terminal (OLT), wherein the advertisements enable the ONUs to identify free channels from a plurality of...
9025956 Data transport in a virtualized distributed antenna system  
A system for routing signals in a Distributed Antenna System includes a plurality of local Digital Access Units (DAUs) located at a Local location. Each of the plurality of local DAUs is coupled...
9020349 Arrangement at a remote node, a remote node, a central office and respective methods therein for supervision of a wavelength division multiplexed passive optical network  
An arrangement at a Remote Node, a Remote Node, a Central Office, a WDM-PON and a method in an arrangement at a Remote Node, and a method in a Central Office are provided for supervision of the...
9007228 Transmission system using dying gasp  
An Ethernet-based transmission system using a dying gasp according to the present invention includes an SMPS for supplying power to an Ethernet-based lower level system, detecting a state of a...
9008513 Wavelength division multiplexing-passive optical network system  
The present invention proposes a wavelength division multiplexing-passive optical network (WDM-PON) system which transmits downstream data to an optical network unit (ONU) as an optical line...
8995830 Communication system, optical network unit, optical line terminal, control device, and communication control method  
An ONU includes a power-interruption detecting unit configured to detect power interruption of the ONU, a transmitting and receiving unit capable of being set in a power saving state, and a...
8989580 Long-distance box and method for processing uplink and downlink light thereof  
The disclosure provides a long-distance box and a method for processing uplink light and downlink light of the long-distance box, uplink light and downlink light from different Passive Optical...
8983295 Optical line terminal and method of registering optical network terminal thereof  
The inventive concept relates to an optical line terminal registering optical network terminals having overlapping serial numbers. The optical line terminal may include a memory storing serial...
8977132 Ingress-mitigated RF cable plants and ingress mitigation methods for same  
An RF hardline coaxial cable plant to facilitate voice and/or data services to subscriber premises in one or more neighborhood nodes of a cable communication system by conveying upstream...
8977128 Encoding of wavelength converter systems  
An apparatus comprising a path computation element (PCE) configured to perform a path computation using a wavelength converter (WC) pool information based on a dynamic WC pool model, wherein the...
8971709 Optical transceiver apparatus and wavelength division multiplexing passive optical network system  
An optical transceiver apparatus includes a gain medium, a photoelectric converter, at least one AWG, and a partial reflection mirror. The at least one AWG includes two common ports and multiple...
8965206 Network system, station-side apparatus, and method of controlling communications  
An aspect of this invention is a network system including subscriber apparatuses and a station-side apparatus for communicating with the subscriber apparatuses. The station-side apparatus...
8958694 Architecture to communicate with standard hybrid fiber coaxial RF signals over a passive optical network (HFC PON)  
One or more overlay wavelengths are applied to a GPON architecture to provide sufficient, cost-effective forward bandwidth per home for targeted, unique narrowcast services to allow traditional...
8953936 Method for protection of multi-wavelength passive optical network  
An Optical Line Termination (OLT) system in a multi-wavelength Passive Optical Network (PON) includes a protection port for protecting a set of OLT ports without the use of a physical switch. The...
8953941 Method and apparatus for identifying a port in a passive optical network  
Typical passive optical networks (PONs) employ several optical network terminals (ONTs) connected to an optical line terminal (OLT) via an optical splitter/combiner (OSC). Due to the passive...
8953940 Method, apparatus, and system for time synchronization on passive optical network  
A method for time synchronization on a passive optical network is disclosed, including: an optical line terminal (OLT) receives clock information sent by a first optical network unit (ONU); the...
8948598 System and method for increasing upstream capacity in an optical network  
A method for communicating in a passive optical network (PON), includes receiving traffic from a plurality of optical network units (ONUs) transmitting in an upstream transmission channel, wherein...
8948596 Neighborhood node mapping methods and apparatus for ingress mitigation in cable communication systems  
A mobile transmitter traverses a drive path in a neighborhood node of a cable communication system and broadcasts a test signal at frequencies falling within an upstream path bandwidth. A...
8942561 Synchronization transport over passive optical networks  
One embodiment provides an Ethernet Passive Optical Network (EPON) system for clock transport. The system includes a reference clock configured to generate a frequency-reference signal, an optical...
8942560 Ethernet passive optical network with report threshold calculations  
The present disclosure is directed to a method and apparatus for maintaining sub-queues at an ONU and for maintaining a count of an amount of data stored in each sub-queue or a count of an amount...
8938168 Office-side line concentration device, access control device, and computer program therefor  
There is provided an office-side line concentration device that accommodates a plurality of passive optical networks, including a plurality of receiving means connected to each of the plurality of...
8934773 Method for data processing in an optical network, optical network component and communication system  
A method for data processing in an optical network includes providing several main wavelengths and processing a subcarrier modulation for the several main wavelengths. An optical network component...
8929737 Optical line terminal and optical network unit  
An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue...
8917990 Fast protection scheme for passive optical network  
The present invention relates to a method and devices for fast protection of an optical network system, in particular for a Passive Optical Network (PON), such as a Gigabit-capable Passive Optical...
8917992 Optical network remote node for WDM-PON and TDM-PON  
An optical network remote node includes first and second node inputs, each receiving a multiplexed optical signal, and node outputs, each outputting a separate demultiplexed optical signal. The...
8917991 FTTH RF over glass (RFoG) architecture and CPE with wavelength separator  
In fiber-to-the-home (FTTH) RF over Glass (RFoG) Architecture a customer-premise-equipment (CPE) includes a wavelength separator. A method includes up-converting a baseband upstream data signal to...
8913887 Passive optical fiber plant analysis  
In a first aspect, the method and apparatus of the present disclosure can be used to periodically and/or intermittently place one or more ONUs attached to a PON in a power savings mode so that an...
8909044 Method for transmitting data and gigabit-capable passive optical network system  
The present invention discloses a method for transmitting data and a gigabit-capable passive optical network system, which method comprises: a transmitter carrying indication information in an...
8909050 Passive optical networks  
An optical network unit (10) comprising a reflective semi-conductor optical amplifier (R-SOA) 12 and a driver 14. The R-SOA has a large optical confinement factor and is arranged to receive a...
8897644 Optical line terminal and optical network system  
Technology to provide linked control of bandwidth allocation to a plurality of optical network units among the plural wavelengths by a bandwidth allocation section coupled to the plural optical...
8897642 Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission  
The invention relates to a remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network comprising a central node and a plurality of...
8886042 Method and system for scheduling uplink message based on gigabit-capable passive optical network (GPON)  
The present invention discloses a method and a system for scheduling an uplink message based on a Gigabit-capable Passive Optical Network (GPON). The method includes the following steps of:...
8886035 Optical line terminal in time division multiple access passive optical network and method for processing optical signal thereof  
Proposed is an efficient method of configuration of a transmitter and a receiver for realizing an optical transmission/reception module apparatus including at least one transmission wavelength and...
8886043 Optical network system, optical line terminal, optical network unit and optical distribution network apparatus  
The disclosure provides an optical network system, an Optical Line Terminal (OLT), an Optical Network Unit (ONU) and an Optical Distribution Network (ODN) apparatus. The system includes: an OLT...
8879914 Low-energy optical network architecture  
A method and apparatus for controlling traffic in an optical network having a plurality of OLTs for communicating with a plurality of PONs. A traffic controller receives traffic information...
8873957 Logical-link management method and communication device  
A logical-link management method to be executed in an optical communication system including a station side device (OLT) and a subscriber side device (ONU) that is capable of setting a plurality...
8873960 Techniques for detecting optical faults in passive optical networks  
A method for detecting faults and their locations in an optical path between an optical line terminal (OLT) of and optical network units (ONUs) of a passive optical network (PON). The method...
8861964 Methods and arrangements in optical network  
Methods and arrangements for time distribution in an optical network system in the upstream direction. The information of a selected time reference frame and a calculated time stamp value of the...
8861954 Burst-mode receiver equipped with optical amplifier, method for controlling optical amplifier, and system  
To, even when a transmission wavelength varies in each ONU and an optical amplifier gain depends on the wavelength in an OLT equipped with an optical amplifier, prevent the optical amplifier gain...
8855493 ONU emulator deployment for mixed types of ONU traffic  
An Optical Network Unit (ONU) emulator enables traffic emulation in a Gigabit-capable Passive Optical Network (GPON) that couples an Optical Line Termination (OLT) system to the ONU emulator and...
8855492 Selectable multiple-wavelength access for optical network units in arrayed waveguide based wavelength division multiplexing passive optical network  
An optical network unit (ONU) accesses services provided by multiple optical line terminals (OLTs) in a wavelength division multiplexing (WDM) passive optical network (PON). The ONU receives...
8855491 Techniques for protecting passive optical networks  
A method for performing a protection in passive optical networks. The method comprises forming a protection maintenance link between an active optical line terminal (OLT) and a standby OLT;...
8849119 Wavelength-shifted bidirectional wavelength division multiplexing optical network  
Disclosed is a wavelength-shifted bidirectional WDM optical network including: an optical line terminal including an optical line terminal (OLT) including a first optical transmitter transmitting...
8849122 Apparatus and methods for dynamic delivery of optical and non-optical content in a network  
Apparatus and methods for providing content to devices in a content distribution network. In one embodiment, a hybrid fiber/coax network provides optical signals to an amplification and...
8849117 Session-based dynamic bandwidth allocation applied to passive optical network  
A session-based dynamic bandwidth allocation applied to PON includes the steps of A) duplicating, under PON system, packets transmitted to a splitter from every ONU and filtering the packets as...
8842990 Method and apparatus for detecting rogue optical network unit in passive optical network  
A method performed in an optical line terminal (OLT) in a passive optical network (PON) for detecting a rogue optical network unit (ONU) operating among a plurality of ONUs in the PON. The OLT...
8842991 Method of providing end-to end connection in a unified optical and coaxial network  
A method in a network device for providing end-to-end connection in a unified optical and coax network, comprising receiving at an integrated node device (IND) a frame from an optical line...
8837945 Connection management server, OLT, ONU/ONT and the system and method for providing ethernet-based PTL-PON  
Provided is a passive optical network (PON) providing system of an Ethernet-based packet transport layer (PTL) scheme, including: a connection management server to manage a unified PTL connection...
8837940 Methods and systems for distributing fiber optic telecommunication services to local areas and for supporting distributed antenna systems  
A fiber optic network includes a fiber distribution hub including at least one splitter and a termination field; a plurality of drop terminals optically connected to the fiber distribution hub by...