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| Number | Title | Issue Date |
| 8155522 | System and method for network planning A method for designing a communication network is provided. Network demand data is gathered and network architecture data is gathered. Based in part on the network demand data and the network architecture data, a network plan is automatically generated. ... | 04/10/2012 |
| 8064766 | Orthogonal frequency division multiple access based optical ring network A fiber optic network transmits data between a hub node and a plurality of local nodes connected by at least one unidirectional fiber ring. Downstream data streams are carried on wavelength-division-multiplexed optical carriers from the hub node to the local nodes. ... | 11/22/2011 |
| 7844179 | Method for operating transparent node for WDM shared “virtual ring” networks A system and method for a transparent WDM metro ring architecture in which optics enables simultaneous provisioning of dedicated wavelengths for high-end user terminals, while low-end user terminals share wavelengths on “virtual rings”. All wavelengths are sourc... | 11/30/2010 |
| 7826743 | Optical ring network for extended broadcasting An optical network includes an access ring, a local ring, one or more add/drop nodes (ADNs), a first gateway and a second gateway. The access ring couples the plurality of gateways and transmits optical signals to and from the gateways, the optical signals comprisin... | 11/02/2010 |
| 7813641 | Fiber optic cable topology for fiber optic repeater distributed antenna system A fiber optic cable topology for a fiber optic repeater distributed antenna system network and a method of configuring the network using the topology is disclosed. The topology includes a first base transceiver station hub, a second base transceiver station hub, and... | 10/12/2010 |
| 7805076 | High-capacity packet-switched network A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by opti... | 09/28/2010 |
| 7761006 | Method for designing optical network, and computer readable medium An appropriate ring topology is selected by searching network topology information on the basis of given information about client signal paths on a predetermined condition, and a wavelength ring accommodating the client signal paths and having an optimal transmissio... | 07/20/2010 |
| 7751709 | Method and system for interconnecting end systems over an optical network Methods and systems for using a wavelength as an address in an optical network are disclosed. In particular, methods for selecting a wavelength for a particular node in an optical network, resolving a wavelength for a destination node in an optical network from a ne... | 07/06/2010 |
| 7738789 | Radio base station with multiple radio frequency heads A radio base station has a baseband unit (BB) and multiple RF heads (RH1, RH2), which are interconnected by means of a bi-directional two-fiber optical ring (R). Each RF head (RH1, RH2) has a delay counter (31) for determining a pr... | 06/15/2010 |
| 7720380 | Optical transmission apparatus in ring transmission system To provide a node (an optical transmission apparatus) enabling expanding the upper limit of the number of nodes capable of automatically forming a squelch table generated in advance in a BLSR system. For the above purpose, when generating a squelch table, hop counts... | 05/18/2010 |
| 7715716 | Methods and apparatus for optimizing utilization in reconfigurable optical add-drop mulitplexer based ring network Techniques are disclosed for generating a hitless migration plan to optimal state, given an optimal routing and wavelength assignment for demands. For example, a technique for use in performing a circuit transition in accordance with an optical ring-based network co... | 05/11/2010 |
| 7715715 | Shared optical ring protection in a multi-fiber ring A communication network comprising first and second communication paths, and nodes coupled therethrough. Each node comprises first and second switches, each having a first terminal coupled to an end of a first communication path, and a second terminal coupled to an ... | 05/11/2010 |
| 7706688 | Wavelength reconfigurable optical network The invention provides a unified optical network architecture for metro and access communication networks, wherein a metro ring network interfaces access PONs through one or more reconfigurable Optical Add/Drop Multiplexers to provide wavelength-reconfigurable all-o... | 04/27/2010 |
| 7672588 | Ring optical transmission network access node A ring optical transmission network access node (ANi) comprises: two identical band splitters (BSa, BSb), each provided with homologous first, second and third ports (Ba, BWa, BPa; Bb, BWb, BPb), a first coupler (C... | 03/02/2010 |
| 7668460 | Method and system for avoiding amplified spontaneous emission loops in an optical network Optical communication networks often incorporate fiber rings or fiber mesh topologies for interconnecting its nodes. Both of these topologies can contain closed optical loops at one or more wavelengths within the optical spectrum. In amplified optical systems, the i... | 02/23/2010 |
| 7609966 | Method and system for time-sharing transmission frequencies in an optical network An optical communication system includes an optical ring that couples a hub node and a plurality of local nodes. The hub node is capable of receiving traffic over the optical ring from the plurality of local nodes on a transmitting wavelength and transmitting traffi... | 10/27/2009 |
| 7603035 | Method and system for a data centric architecture in an optical network A method and system for a data centric architecture in an optical network are provided. In one embodiment, a method and system for a data centric architecture in an optical network includes an optical ring. A number of local nodes are coupled to the optical ring and... | 10/13/2009 |
| 7577359 | System and method for SONET transport optimization (S-TOP) A method for designing a communication network is provided. First, network demand data is gathered. Network architecture data is also gathered. Based in part on the network demand data and the network architecture data, a network plan is automatically generated.... | 08/18/2009 |
| 7577360 | System and method for second order multi-layer traffic grooming for optical network optimization A method of automatically generating a computer based layout of an optical communication network is provided. First, communications traffic demand forecast data for an optical communication network is received. Network data corresponding to a deployed optical commun... | 08/18/2009 |
| 7561801 | Optical transceiver with electrical ring distribution interface A ring connection system and method are providing for distributing signals in an optical-to-electrical interface. The method electrically connects a plurality of nodes in a series-connecting ring, and receives an optical signal at a first node from a service provide... | 07/14/2009 |
| 7551853 | Data communications apparatus An apparatus achieves data communications between a data storage controller and data storage devices within a data storage system via an optical network. The apparatus includes a wavelength division multiplexing logic for simultaneously establishing, on the optical ... | 06/23/2009 |
| 7548693 | Relay transmission apparatus A relay transmission apparatus in which the effectiveness of a protecting function is improved by suppressing variation of an OSNR value of a signal regardless of the distance that the signal is transmitted. The relay transmission apparatus is comprised of a first r... | 06/16/2009 |
| 7519294 | Method and apparatus for providing integrated symmetric and asymmetric network capacity on an optical network A symmetrical capacity network may be adapted to accommodate asymmetrical network traffic patterns by deploying Protected Dedicated Wavelengths (PDWs) between one or more head-end nodes and the access nodes on a ring-based topology network. The PDWs include pairs of... | 04/14/2009 |
| 7512340 | Optical network system An optical network system capable of directly routing optical signals without entailing multiple reception of identical wavelengths. A set wavelength output unit outputs a set wavelength. An Nk-axis filter receives an Nk-axis signal propagated ... | 03/31/2009 |
| 7477844 | Method and system for utilizing virtual local access network addressing in optical networks An optical network includes an optical ring, a plurality of local nodes, and a data center node. The plurality of local nodes are coupled to the optical ring and each local node is capable of receiving traffic from a local client and associating a transmitter tag wi... | 01/13/2009 |
| 7466917 | Method and system for establishing transmission priority for optical light-trails An optical network is operable to carry optical traffic in a plurality of wavelengths between a plurality of nodes. The optical network includes a light-trail, a convener node, one or more intervening nodes, and an end node. The light-trail is established in the opt... | 12/16/2008 |
| 7454139 | High-capacity packet-switched ring network A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by opti... | 11/18/2008 |
| 7450846 | Method for operating transparent node for WDM shared ‘virtual ring’ networks A system and method for a transparent WDM metro ring architecture in which optics enables simultaneous provisioning of dedicated wavelengths for high-end user terminals, while low-end user terminals share wavelengths on “virtual rings”. All wavelengths are sourc... | 11/11/2008 |
| 7450847 | System for transparent node for WDM shared “virtual ring” networks A system and method for a transparent WDM metro ring architecture in which optics enables simultaneous provisioning of dedicated wavelengths for high-end user terminals, while low-end user terminals share wavelengths on “virtual rings”. All wavelengths are sourc... | 11/11/2008 |
| 7433600 | Optical node device and system including the device Disclosed herein is an optical node device applicable to an optical network including a closed loop provided by an optical fiber. This optical node device includes a tunable wavelength selecting element adapted to input WDM signal light obtained by wavelength divisi... | 10/07/2008 |
| 7433594 | Node apparatus, optical wavelength division multiplexing network, and system switching method An optical wavelength division multiplexing network has a multi-level structure where a plurality of optical network units (ONUs) are connected to a lowest-level network. A node apparatus connected to networks other than the lowest-level network includes (a) passive... | 10/07/2008 |
| 7421168 | Integrated optical channelizer A signal channelizer (10) includes an input waveguide (14) carrying an inputted signal (20) having a plurality of wavelengths. The input waveguide (14) has an input port (22) for receiving the inputted signal (20). A plurali... | 09/02/2008 |
| 7421203 | Method for transmitting packet in wireless access network based on wavelength identification code scheme A method for transmitting a packet in a wireless access network based on a wavelength identification code scheme. The method comprises the steps of connecting n number of RNCs (Radio Network Controllers) to one sub-ring where the “n” is a positive integer, and a... | 09/02/2008 |
| 7415209 | Method for operating an ethernet optical area network (“EOAN”) over one more metropolitan areas An Ethernet Optical Area Network (EOAN) system, and methods for implementing and using such an EOAN system, are disclosed. The EOAN system may be used to improve the speed and reliability of data communications networks for small to medium-sized companies in metropo... | 08/19/2008 |
| 7412171 | Optical ring network architecture An optical ring network architecture including a number (N) of multi-add/drop filters, such as filters formed using symmetrical pairs of frequency routers. Each multi-add/drop filter is coupled to two other multi-add/drop filters using N−2 transmission media, such... | 08/12/2008 |
| 7412169 | FTTH system for convergence of broadcasting and communication through switched broadcasting A fiber to the home FTTH network for convergence of broadcasting and communication is disclosed. The network includes: an OLT for receiving and converting a first predetermined number of broadcast signals and an Ethernet signal into a plurality of converted optical ... | 08/12/2008 |
| 7409154 | System and method for a protected optical access ring network An optical access network employs a ring topology in which connections between the network units and between the network units and the optical line terminal are via a protection switch. The protection switch monitors connections from the optical network units to det... | 08/05/2008 |
| 7397792 | Virtual burst-switching networks A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple... | 07/08/2008 |
| 7394985 | Wavelength access server (WAS) architecture A wavelength access server (WAS) architecture provides aggregation of traffic streams of diverse data communication protocols as well as provision of wavelength resources in an optical transport network. The WAS provides functions such as service traffic adaptation,... | 07/01/2008 |
| 7389047 | Optical ring transmission network The network comprises an optical ring link (F) and a concentrator (HUB) that sends via one end of the link “downlink” optical signals carried by respective wavelengths and receives “uplink” optical signals via the other end of the link. The link is divided i... | 06/17/2008 |
