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| Number | Title | Issue Date |
| 8184648 | Method and apparatus for implementing control of multiple physically dual homed devices A ring control protocol is used to establish a separate control plane for a plurality of physically dual homed devices to enable collections of dual homed devices to be represented by a single pair of addresses into the attached routed Ethernet network. The gateway ... | 05/22/2012 |
| 7995595 | Method for efficiently detecting node addresses According to one embodiment, node addresses are efficiently detected. For example, a node address is extracted from a packet that is being communicated from a first network to a second network through a network element. An abstraction of the node address is determin... | 08/09/2011 |
| 7860119 | SONET/SDH ring aggregation SONET/SDH ring aggregation with distributed traffic. The system may include a packet-switched fabric adapted to switch TDM and PDU over the same fabric. The system provides logical functionality of one or more of SONET/SDH ADMs, fiber patch panels, coax patch panels... | 12/28/2010 |
| 7680135 | Audio network system having lag correction function of audio samples In an audio network system connecting a plurality of nodes in a ring form, a master node transmits a packet of frame data regularly every sampling cycle, such that the packet circulates through the nodes during the sampling cycle. The packet is provided with a plura... | 03/16/2010 |
| 7471691 | Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL network and all connected to a crossbar switch. The switch control circuits are coupled t... | 12/30/2008 |
| 7453896 | Method and apparatus for longitudinal balance calibration A method and apparatus is provided for performing longitudinal balance calibration. A differential signal is provided. A calibration of a gain of at least a portion of the differential signal to affect the longitudinal balance associated with the differential signal... | 11/18/2008 |
| 7443788 | Method and apparatus for improving performance of a loop network A method and apparatus for improving performance of a loop network, in particular a Fiber Channel Arbitrated Loop. The loop network has two loops and a plurality of dual-ported devices each with one port on each loop. The method includes selectively bypassing redund... | 10/28/2008 |
| 7443864 | Wireless communication system backhaul architecture A communication system utilizes point-to-multipoint wireless links between base stations and wireless hubs that are co-located at some of the base stations. Bonded circuits may be used between the wireless hubs and a communication ring. A mobile switching center is ... | 10/28/2008 |
| 7436784 | Resilient packet ring network for realizing MAC bridging A bridge node converts a MAC frame addressed to a station node into a RPR MAC frame and thus transmits it, and encapsulates a MAC frame addressed a station being located the outside of a ring and connected to other bridge node into the RPR MAC frame, and transmits i... | 10/14/2008 |
| 7430171 | Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL network and all connected to a crossbar switch. The switch control circuits are coupled t... | 09/30/2008 |
| 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 |
| 7400637 | Time slotted logical ring A Time Slotted Logical Ring protocol manages the flow of traffic in a duplex media including a cable distribution network with a head end, a local node, and a group of subscribers. The subscriber includes a cable modem which produces an HDLC serial interface which t... | 07/15/2008 |
| 7400574 | Method and apparatus for managing a loop network A method and apparatus for managing a loop network, the loop network (200) including at least one loop (206, 208), a plurality of devices (210) connected to the at least one loop (206, 208) via ports (211, 212), wherein at least tw... | 07/15/2008 |
| 7376138 | Optical communications network In a communications network, a node receives a transit packet. The priority assigned to the transit packet is determined and when it has a low priority then the transit packet is removed and a higher priority packet is inserted in the resulting vacancy. ... | 05/20/2008 |
| 7372846 | Method for transmitting time information via a data packet network Time information which is to be transmitted via a data packet network is called up from a time information source and is transmitted to a data packet transmission module. The data packet transmission module controls the transmission time of a data packet in which th... | 05/13/2008 |
| 7369514 | Source credit based fairness scheme A method and apparatus for minimizing starvation of a station in a ring networked environment includes allocating a tax to each of the stations in the ring, and, for each packet that is to be transited though the ring, providing bandwidth to the station in the form ... | 05/06/2008 |
| 7362750 | Switch module architecture A switching module has external ports for sending and receiving data packets and mesh interfaces for internal mesh connections with other modules. A switching engine directs packets to one or other of the mesh interfaces according to the port number of a ‘destinat... | 04/22/2008 |
| 7362717 | Method and system for using distributed name servers in multi-module fibre channel switches A method for processing a Get Identifier (“GI_A”) command received by a switch module of a multi-module fiber channel switch with a plurality of switch modules is provided. The method comprises determining if a domain value in the GI_A command is that of the mul... | 04/22/2008 |
| 7359407 | Data interface that is configurable into separate modes of operation for sub-bit de-skewing of parallel-fed data signals A data interface is provided that can de-skew data signals by taking into account different skewing effects on each data signal. The data interface can be used, for example, in a communication system and can be configured to operate in one of three possible modes of... | 04/15/2008 |
| 7355965 | Apparatus and method for rapid detection of unidirectional breaks in a network ring Normal 802.3 Ethernet requires a tree topology. If a ring or a loop exists, then packets will be forwarded around the ring indefinitely. If the ring is broken, then there is no possibility of packets being propagated forever. This invention shows how to quickly impo... | 04/08/2008 |
| 7356043 | Network channel access protocol—slot scheduling Network channel access protocol is disclosed. More particularly, a distributed, locally determined, channel access protocol that adapts to load, avoids interference and controls access by a group of nodes to a set of shared channels is disclosed. Shared channel spac... | 04/08/2008 |
| 7355987 | Multi-rate, multi-port, gigabit SERDES transceiver A multi-port Serdes transceiver includes multiple parallel ports and serial ports, and includes the flexibility to connect any one of the parallel ports to another parallel port or to a serial port, or both. Furthermore, the multi-port transceiver chip can connect a... | 04/08/2008 |
| 7356617 | Periodic control synchronous system A controller controls a time stamp providing unit to provide a periodic transfer packet with a time stamp showing the synchronous timing of periodic control designated by the control period timer using the global time indicated by a global timer. Devices are correct... | 04/08/2008 |
| 7355966 | Method and system for minimizing disruption in common-access networks A method and fibre channel switch element is provided for isolating a defective device that is coupled to a fibre channel arbitrated loop. The method includes, isolating a port if a loop initialization primitive (“LIP”) is detected from a device coupled to the a... | 04/08/2008 |
| 7352701 | Buffer to buffer credit recovery for in-line fibre channel credit extension devices A method and system for credit recovery of lost frames and R_RDYs in an in-line credit extender is provided. The method includes, comparing received frame count and a programmable counter value when BB_SCs are received; loading the difference between the frame count... | 04/01/2008 |
| 7343425 | Multi-speed serial interface for media access control and physical layer devices A network device includes a media access control (MAC) device that transmits a first data stream at a first data rate that includes symbols having M bits. A translator converts the first data stream to a second data stream at a second data rate. The translator inclu... | 03/11/2008 |
| 7342877 | Method and system for providing a loop-free ring topology A method for preventing loops in a ring topology of a computer network is disclosed. The method includes receiving a packet at a node on a shared packet ring and inserting a header containing an ID identifying the node at which the packet was received on the ring as... | 03/11/2008 |
| 7339947 | Network channel access protocol—frame execution Network channel access protocol is disclosed. More particularly, a distributed, locally determined, channel access protocol that adapts to load, avoids interference and controls access by a group of nodes to a set of shared channels is disclosed. Shared channel spac... | 03/04/2008 |
| 7339887 | Multipoint protected switching ring Normal 802.3 Ethernet requires a tree topology. If a ring or a loop exists, then packets will be forwarded around the ring indefinitely. If the ring is broken, then there is no possibility of packets being propagated forever. This invention shows how to quickly impo... | 03/04/2008 |
| 7340167 | Fibre channel transparent switch for mixed switch fabrics A method and a Fibre Channel switch element are provided that allows communication between a host system and a target device attached to a proprietary switch fabric in a network. The Fibre Channel switch element includes a first port that communicates with the targe... | 03/04/2008 |
| 7334046 | System and method for optimizing frame routing in a network A method for routing Fibre Channel frames in a Fibre Channel system is provided. The method compares a cost associated with a pre-programmed preferred route when the pre-programmed preferred route has been pre-programmed to route Fibre Channel frames between a sourc... | 02/19/2008 |
| 7334070 | Multi-channel memory architecture for daisy chained arrangements of nodes with bridging between memory channels Multiple memory channels of a multi-channel memory architecture are effectively bridged together to enable data traffic associated with various nodes in daisy chain arrangement to be communicated over both memory channels. For example, a daisy chain arrangement of n... | 02/19/2008 |
| 7324830 | System and method of exchanging identification information for mobile stations A system is provided for allowing mobile stations to exchange identification information using a predetermined communication path for the purpose of obtaining identification information to use in establishing a different communication path for communicating. ... | 01/29/2008 |
| 7319669 | Method and system for controlling packet flow in networks A system and method for transmitting and bundling network packets is provided. The incoming network packet size is determined and if the remote buffer space is sufficient to hold the network packet it is transmitted to the destination port. If the remote buffer spac... | 01/15/2008 |
| 7319663 | Method for controlling switching in bidirectional line-switched ring A method for controlling switching in a bidirectional line-switched ring network configured by a plurality of optical fibers and a plurality of nodes, (i) having a first node receive as input an LP-S (or having the first node detect an SF-P) and having a second node... | 01/15/2008 |
| 7313103 | Method and apparatus for interactive communication between half-duplex and full-duplex systems A communication system (100) includes a first communication unit (101, 102, 103, 104) capable of communicating over a full-duplex persistent-connection link provided by a full-duplex network (105) and a second communication unit (151, 152... | 12/25/2007 |
| 7301953 | Method and system for transporting a secondary communication signal with a primary communication signal The method and system provide for transporting a secondary communication signal from a secondary carrier network with a primary communication signal from a primary carrier network. The method and system load the overhead from the secondary communication signal into ... | 11/27/2007 |
| 7295561 | Fibre channel implementation using network processors Network processors controlled by software are used to implement the FC-1 and FC-2 layer functions. Each Network Processor comprises a fabric processor, an executive processor, channel processors and associated serial data processors. Special ASICs are not required s... | 11/13/2007 |
| 7296093 | Network processor interface system A heterogeneous and scalable bridge capable of translating a plurality of network protocols is adapted for coupling to a network switch fabric. The bridge uses at least one egress buffer interface and can perform port aggregation and bandwidth matching for various d... | 11/13/2007 |
| 7289429 | System and method to perform non-service effecting bandwidth reservation using a reservation signaling protocol A method to facilitate recovery of a node in a communications network is disclosed. The method comprises receiving one or more messages from at least another node in the communications network and restoring connectivity of a recovering node based at least in part on... | 10/30/2007 |
