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| Number | Title | Issue Date |
| 8184643 | Device, system, and method for transporting data using combined broadband and legacy network infrastructures The invention relates generally to data communications using multiple data networks to transport data to one or more end user devices. ... | 05/22/2012 |
| 8184556 | Systems and methods for distance-proof N-pass auto negotiation for gigabit ethernet The present invention provides distance-proof N-pass Auto Negotiation systems and methods for Gigabit Ethernet. The present invention distance proofs Auto Negotiation. No matter the distance between two nodes configured according to the systems and methods of the pr... | 05/22/2012 |
| 8184526 | Systems and methods for Connectivity Fault Management extensions for automated activation of services through association of service related attributes The present disclosure provides systems and methods for Ethernet Connectivity Fault Management (CFM) extensions to provide a CFM messaging mechanism for support of information exchange and the like, in addition to end-to-end connectivity and fault management. In an ... | 05/22/2012 |
| 8180228 | Programmable phase detector for sequence equalizer for optical channels In a direct-detection receiver having an analog-to-digital converter (ADC) for sampling a received optical signal and a sequence estimator for recovering data symbols from a multi-bit sample stream generated by the ADC, a method of acquiring a channel lock condition... | 05/15/2012 |
| 8166365 | Cycle slip location and correction Methods and techniques are disclosed for correcting the effect of cycle slips in a coherent communications system. A signal comprising SYNC bursts having a predetermined periodicity and a plurality of known symbols at predetermined locations between successive SYNC ... | 04/24/2012 |
| 8166183 | Method and system for fast virtual concatenation setup in a communication network The invention is directed to optimizing setup of a VCAT connections using (largest) CCAT containers so as to minimize the number of cross-connection commands needed to enable data transfer. A system and method are provided for enhancing VCAT networks to include fast... | 04/24/2012 |
| 8165912 | Methods and systems for portfolio investment thesis based on application life cycles The disclosure provides a product/service portfolio investment calculation methodology based on an application life cycle. The present invention defines an application life cycle with a plurality of phases, and provides a mechanism to define a location within the ap... | 04/24/2012 |
| 8160446 | Methods and systems to stabilize an optical network against nodal gain changes The present invention provides methods and systems to stabilize an optical network against nodal gain changes through two nested control loops for controlling node gain and node output power. The present invention includes two nested control-loops running at differe... | 04/17/2012 |
| 8155148 | Telecommunications transport methods and systems for the transparent mapping/demapping of client data signals The present invention provides telecommunications transport methods and systems for the transparent mapping/demapping of client data signals without the insertion/deletion of idle characters for client data signal rate adaptation. These methods and systems include m... | 04/10/2012 |
| 8154867 | High density switching platform with interbay connections arrangement A high density switching platform arranges multiple circuit cards interconnected by a single backplane. A single backplane has three sets of circuit cards on one side. A shared ventilation chamber on the other side of the backplane draws ambient air through each of ... | 04/10/2012 |
| 8149692 | Ring topology discovery mechanism A method automatically discovers a topology of a communication network ring. The ring includes a plurality of nodes. Each node includes a first port and a second port. A ring topology request or a response to the ring topology request is received from at least one n... | 04/03/2012 |
| 8139954 | System and method for reducing memory requirements for electrical domain compensation of intra-channel nonlinearity in an optical communications system A digital filter is provided for processing an electrical input signal to be conveyed through an optical communications system. The processing generates a predistorted electrical signal using a compensation function that substantially mitigates for intra-channel non... | 03/20/2012 |
| 8139485 | Logical transport resource traffic management A method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, the ingress ports receiving the data packets from at least one service, and the egress ports configured with at least one Logical Transport R... | 03/20/2012 |
| 8135846 | Communication between call controllers by amending call processing messages Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information o... | 03/13/2012 |
| 8135283 | Clock recovery with channel coefficients In a coherent optical receiver of an optical communications network, a method of recovering a clock signal from a high speed optical signal received through an optical link. A set of compensation vectors are adaptively computed for compensating Inter-symbol Interfer... | 03/13/2012 |
| 8131149 | Optical routing device and optical network using same The invention pertains to methods, apparatus, and systems optical of networking using tunable receivers, optical blocking elements selectively placed in the network, and optical routing elements comprised of passive elements, such as optical couplers and splitters. ... | 03/06/2012 |
| 8131148 | Optical transmitter error reduction using receiver feedback Described is a method of reducing transmitter error in an optical communications channel. An optical signal transmitted from an optical transmitter that has impairment due to transmitter error is processed to generate a digitally-equalized signal. A nonlinear charac... | 03/06/2012 |
| 8127042 | Data driven connection rule/constraint engine applied to trail management A method of identifying a connectivity characteristic structure in a network provided between a plurality of nodes in a network comprises the steps of acquiring node information detailing for each port of each node a connection characteristic of that port; collating... | 02/28/2012 |
| 8125925 | Method and apparatus for non-disruptive call modification A method and system for changing the extent of data plane resources controlled by a control plane for a network connection which spans a contiguous set of nodes controlled by existing network control resources is disclosed. This is done in a non-disruptive manner. T... | 02/28/2012 |
| 8116308 | System and method for providing improved packet traceability A method and apparatus is described which enables location information associated with a client to easily be obtained by a service provider in a packet-based network. The location information may be the location of the client itself, or may be location information a... | 02/14/2012 |
| 8116232 | Method and apparatus for non-disruptive call modification A method and system for changing the extent of data plane resources controlled by a control plane for a network connection which spans a contiguous set of nodes controlled by existing network control resources is disclosed. This is done in a non-disruptive manner. T... | 02/14/2012 |
| 8116196 | Shared mesh signaling method and apparatus In a mesh network, a network element for providing protection switching in a 1:N shared mesh protection scheme having a first protection path associated with a pair of working paths selected from the N working paths is disclosed. The network element comprising: (a) ... | 02/14/2012 |
| 8107476 | System and method for switching packet traffic over an optical transport network A system and method for switching packet traffic over an optical transport network comprises a network element having first and second mappers for mapping packet traffic to electrical streams. A network interface includes a packet switch that directs a first packet ... | 01/31/2012 |
| 8095342 | Systems and methods for highly efficient bit error rate modeling in quasi-linear communication networks The present invention provides systems and methods for highly efficient bit error rate (BER) modeling in quasi-linear communication networks. In the present invention, nonlinear noise is treated within a linearization approach along with the amplified spontaneous em... | 01/10/2012 |
| 8095008 | Systems and methods for a multiple-input, multiple-output controller in a reconfigurable optical network The present invention provides systems and methods to convert a reconfigurable optical node multiple-input multiple-output (MIMO) system to a single-input single-output (SISO) system suitable for a proportional-integral-differential (PID) control process. Advantageo... | 01/10/2012 |
| 8089973 | Outdoor hardened exo-modular and multi-phy switch The present invention relates to a data distribution device comprising of a core electronics suite having at least two data ports where each port is in communication with its own network transport medium. At least two broadband transceivers, each in communication wi... | 01/03/2012 |
| 8089866 | Spanning tree flooding backbone systems and methods for link state routed networks The present disclosure provides systems and methods for a spanning tree topology used as a “flooding backbone” for control messages on a link state routed network. Specifically, control messages are only broadcast on the flooding backbone thereby significantly r... | 01/03/2012 |
| 8059970 | Control system for a polar optical transmitter A method of controlling a polar optical transmitter comprising a dual-branch Mach-Zehnder (MZ) modulator driven by a pair of independent electrical drive signals. A cost function is provided which defines a relationship between a control parameter of the optical tra... | 11/15/2011 |
| 8059685 | Methods and systems for carrying synchronization over Ethernet and optical transport network The present invention reserves special Ethernet timing packets to mark timing within Ethernet and OTN, and secondarily creates frames within the Ethernet stream through the timing marker packets. The result is standard Ethernet with timing capability that can be tra... | 11/15/2011 |
| 8057110 | Card guide and heatsink assemblies for pluggable electro-optic modules In various exemplary embodiments, the present invention provides improved card guide and heatsink assemblies for pluggable electro-optic modules utilized in optical communications networks and the like. More specifically, the present invention provides a solderable ... | 11/15/2011 |
| 8055128 | Methods and systems for optimal launch power computation in meshed optical networks The present invention provides methods and systems for efficiently computing optimal optical launch powers for meshed optical networks. The present invention can be utilized to find optimal launch powers for multiple wavelengths in a meshed dense-wave division multi... | 11/08/2011 |
| 8054853 | Systems and methods for combining time division multiplexed and packet connection in a meshed switching architecture The present invention provides systems and methods for supporting native TDM and native Packet switching simultaneously in a meshed switching architecture. Specifically with the present invention, the meshed links are common to both TDM and packet traffic, and both ... | 11/08/2011 |
| 8052335 | Ejector apparatus and associated assembly method for pluggable transceivers The present disclosure relates to a novel ejector apparatus for pluggable transceivers, such as transceivers defined by multi-source agreements (MSAs) including SFP, SFP+, XFP, and the like. The ejector apparatus utilizes a shrouded design where the ejector apparatu... | 11/08/2011 |
| 8046451 | Hierarchical tree-based protection scheme for mesh networks In a hierarchical tree-based protection scheme, a node in a mesh network is designated as a root node of a spanning hierarchical protection tree and subsequently invites each adjacent node to become its child within the tree. If the inviting node provides a more cap... | 10/25/2011 |
| 8045863 | Byte-interleaving systems and methods for 100G optical transport enabling multi-level optical transmission The present invention provides byte-interleaving systems and methods for Optical Transport Unit N (OTUN) (i.e. Optical Transport Unit 4 (OTU4)) and 100 Gb/s (100 G) optical transport enabling multi-level optical transmission. The byte-interleaving systems and method... | 10/25/2011 |
| 8045856 | Polarization mode dispersion compensation and polarization demultiplexing systems and methods for optical transmission systems The present disclosure provides polarization mode dispersion compensation (PMDC) and polarization de-multiplexing systems and methods for polarization multiplexed (PolMux) optical transmission systems. The PMDC detects an error signal before a polarization splitter ... | 10/25/2011 |
| 8045855 | Systems and methods for the mitigation of polarization mode dispersion impairments in fiber optic links The present invention provides systems and methods for the mitigation of PMD impairments in fiber optic links. The present invention utilizes synchronous polarization modulation and digital control of polarization modulation, instead of independent polarization modu... | 10/25/2011 |
| 8045553 | Processing, forming, modifying, and comparing packet data structures Packet data structure formation methods include receiving a request to create a data structure for representing a packet. The request may refer to two or more fields to be included in the packet. The methods further include determining bit values and packet position... | 10/25/2011 |
| 8045551 | Systems and methods for private network-to-network interface out-of-band signaling and path blocking The present invention provides systems and methods to mix In-Band (IB) and Out-of-Band (OOB) signaling mechanisms under the Private Network-to-Network (PNNI) protocol for optical control plane connectivity. The present invention provides mechanisms for establishing ... | 10/25/2011 |
| 8045481 | System and method for supporting virtualized links at an exterior network-to-network interface The present invention provides systems and methods for abstracting a network topology into virtual links and supporting both generic and instantiated virtualized links for linking a virtualized topology with actual resources within a domain, providing security over ... | 10/25/2011 |
