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| Number | Title | Issue Date |
| 7822057 | Method and system for keeping a fibre channel arbitrated loop open during frame gaps A method and system for keeping an arbitrated loop open during a frame gap using a fiber channel switch element is provided. The switch element includes a port control module having a receive and transmit segment, wherein the transmit segment activates a timer whose... | 10/26/2010 |
| 7751419 | Message ring in a switching network A switching network for efficiently receiving and transmitting data packets having both frames and messages includes a crossbar switch with a plurality of surrounding ports for exclusively switching frames which normally consist of large data streams of 40 to 60 byt... | 07/06/2010 |
| 7492783 | Method and system for LIPf7 origination detection and LIPf8 suppression in a port bypass controller Certain embodiments of the invention may be found in a method and system for operating ports in port bypass controllers through LIPf7 origination detection and LIPf8 suppression, which may be utilized, for example, in storage systems. Aspects of the method may compr... | 02/17/2009 |
| 7420982 | Method and system for keeping a fibre channel arbitrated loop open during frame gaps A method and system for keeping an arbitrated loop open during a frame gap using a fiber channel switch element is provided. The switch element includes a port control module having a receive and transmit segment, wherein the transmit segment activates a timer whose... | 09/02/2008 |
| 7385972 | 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... | 06/10/2008 |
| 7352765 | Packet switching fabric having a segmented ring with token based resource control protocol and output queuing control A packet switching fabric includes means forming a data ring, means forming a control ring, and means forming a plurality of data communication network links each having at least one network node coupled thereto. The fabric further includes a plurality of output que... | 04/01/2008 |
| 7342889 | Means and a method for switching data packets or frames A switching means and method where a number of devices exchange data on a data bus. Each device has at least one data port and at least one of the devices has a plurality of data ports. The data ports may have different data rates. An arbitration takes into account ... | 03/11/2008 |
| 7319664 | Redundant link management switch for use in a stack of switches and method thereof A stackable switch supporting redundant link and backup management. The stackable switch includes a stacking module, a processor and a management module. Several stackable switches can be stacked together in the form of a closed-loop link topology via the stacking m... | 01/15/2008 |
| 7283749 | Fiber and wire communication system This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communicati... | 10/16/2007 |
| 7233601 | Cascade architecture and operation for packet-based communication systems A connecting unit for use in a system comprising a ‘stack’ of network communication units having a cascade connection has three ports having lines for forwarding and receiving data packets and for forwarding and receiving control messages. The connecting unit in... | 06/19/2007 |
| 7203203 | Message ring in a switching network There is disclosed a switching network for efficiently receiving and transmitting data packets having both frames and messages. The switching network includes a crossbar switch with a plurality of surrounding ports for exclusively switching frames which normally con... | 04/10/2007 |
| 7184446 | Cross-bar switch employing a multiple entry point FIFO A cross-bar switch includes a set of input ports for receiving data packets and a set of sink ports coupled to the input ports to accept and forward the data packets. Each sink port includes a multiple entry point FIFO with multiple data inputs for receiving data pa... | 02/27/2007 |
| 7136381 | Memory management unit architecture for switch fabric A memory management unit (MMU) for a network switch fabric for forwarding data is disclosed. The MMU has an ingress port interface receiving portions of a data packet and an egress port interface, connected to ingress ports of the fabric through an ingress bus ring.... | 11/14/2006 |
| 7131020 | Distributed copies of configuration information using token ring A system for synchronizing configuration information in a plurality of data processing devices using a common system interconnect bus. The present invention provides a method and apparatus for enforcing automatic updates to the configuration registers in various age... | 10/31/2006 |
| 7123585 | Cross-bar switch with bandwidth allocation Each sink port in a cross-bar switch provides for allocating bandwidth among data packets. Packets are assigned priority levels, and the cross-bar switch regulates bandwidth allocation for each priority level. A sink port records traffic volume for packet data of ea... | 10/17/2006 |
| 7103058 | Cross-bar switch with explicit multicast support A cross-bar switch includes a set of input ports for receiving data packets and a set of sink ports for transmitting the received packets to identified targets. A set of data rings couples the input ports to the sink ports. Each sink port utilizes the set of data ri... | 09/05/2006 |
| 7082139 | Cross-bar switch with sink port accepting multiple packets A cross-bar switch includes a set of input ports to receive data packets and a set of sink ports in communication with the input ports to receive the data packets and forward them onto a communications link. Each sink port is adapted to concurrently receive multiple... | 07/25/2006 |
| 7068937 | Fiber and wire communication system This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communicati... | 06/27/2006 |
| 7068603 | Cross-bar switch A cross-bar switch includes a set of input ports for receiving data packets and a set of sink ports for transmitting the received packets to identified targets. A set of data rings couples the input ports to the sink ports. Each sink port utilizes the set of data ri... | 06/27/2006 |
| 7065090 | Cross-bar switch supporting implicit multicast addressing A cross-bar switch includes a set of input ports and a set of sink ports in communication with the input ports. The input ports receive packets, which are snooped by the sink ports. The cross-bar switch also includes a set of port address tables. Each port address t... | 06/20/2006 |
| 7065095 | Telecommunication network with variable address learning, switching and routing A ring network for transporting data packets between network devices is provided. The ring network includes a number of ring switches. Each ring switch has at least one ring port, at least one local port and at least one table that self learns which network devices ... | 06/20/2006 |
| 7058010 | Controlled switchover of unicast and multicast data flows in a packet based switching system The present invention is a methodology for controlled switchover of unicast and multicast data flows in packet based switching system. In some cases it is advantageous to purposefully support switchover of flows from one path to the other without causing loss of dat... | 06/06/2006 |
| 7051132 | Bus system and path decision method therefor A bus system and a method of deciding a data transmission path are provided. The bus system includes a plurality of functional blocks; a ring bus which transmits data in a single direction; an arbiter which generates a bus grant signal according to a predetermined a... | 05/23/2006 |
| 7038737 | Image processing device The image processing apparatus according to the present invention comprises: DMA control means 112 having image input/output processing means 100, an external memory 111, DMA setting holding means 113, address generating means 114,... | 05/02/2006 |
| 7039196 | Motor vehicle sound system The invention relates to a sound system for a motor vehicle and to a process for specifying the functional scope of such. The sound system (1) for a motor vehicle comprises a control unit (2), and several input units (3, 3a) for operating... | 05/02/2006 |
| 6987740 | STP root guard The Spanning Tree Protocol (STP) chooses a root switch. Each of the other switches has a “root” port and one or more “designated ports(s)” chosen by STP. Packets are transmitted upstream toward the root switch through the root port, and packets designated fo... | 01/17/2006 |
| 6971027 | Computer security system A networked computer system 10 having enhanced communications security aspects. ... | 11/29/2005 |
| 6965602 | Switch fabric capable of aggregating multiple chips and links for high bandwidth operation A switching fabric capable of supporting high bandwidth switching operations is disclosed. In one aspect, multiple switching chips and multiple links thereto are used to provide a high bandwidth switching fabric. In another aspect, payload data is transmitted follow... | 11/15/2005 |
| 6952417 | System and method for selectively providing data communications in an XDSL communication system A system and method selectively establishes data communications, such as XDSL services, between data devices and a network switch. Status of the data devices are monitored and active data devices are connected to a data branch for data communications. Data devices w... | 10/04/2005 |
| 6928049 | Modular bridging-device A method of managing connectivity of a cluster of bridging-devices including a plurality of links. The method includes pre-designating at least one of the links as a redundant link which is blocked when all the other links are operative and connected in accordance w... | 08/09/2005 |
| 6907036 | Network switch enhancements directed to processing of internal operations in the network switch A method of processing internal operations in a network switch includes the steps of constructing a lookup table in system memory by snooping a communication channel in a network switch for lookup table information. Upon detection of lookup table information on the ... | 06/14/2005 |
| 6891828 | Dual-loop bus-based network switch using distance-value or bit-mask A network switch routes switch packets among nodes with input and output ports. The nodes are connected together in a loop by two buses. One bus sends packets in a clockwise direction around the loop of nodes, while the other bus sends packets in a counter-clockwise... | 05/10/2005 |
| 6862639 | Computer system including a receiver interface circuit with a scatter pointer queue and related methods A computer system may include a processor, at least one memory coupled to the processor and having a plurality of scattered memory locations each having a pointer associated therewith, and a receiver interface circuit coupled to the at least one memory. The receiver... | 03/01/2005 |
| 6859461 | Orderwire controller An orderwire controller and orderwire control system which provide enhanced capabilities of flexible orderwire signaling to improve usability and maintainability. A network system involves multiple ring networks, each of which comprises a plurality of network elemen... | 02/22/2005 |
| 6744762 | Node device, communication network having a plurality of node devices, and control method therefor In the node device of a network of performing communication while changing the communication channel, a plurality of packets are transmitted to a terminal device in a different order from the reception order of a plurality of received packets without rearranging the... | 06/01/2004 |
| 6697420 | Symbol-based signaling for an electromagnetically-coupled bus system The present invention provides a mechanism for supporting high digital bandwidth in a multi-drop bus system. A first device of the system encodes multiple bits in a symbol and drives the encoded symbol onto the multi-drop bus. Multiple receiving devices a... | 02/24/2004 |
| 6661787 | Integrated data table in a network A method of operating a network device in a communication system for the transmission of data packets which include network addresses identifying sources and destinations of data, the network device being capable of both bridging and routing decisions and... | 12/09/2003 |
| 6658016 | Packet switching fabric having a segmented ring with token based resource control protocol and output queuing control A packet switching fabric includes means forming a data ring, means forming a control ring, and means forming a plurality of data communication network links each having at least one network node coupled thereto. The fabric further includes a plurality of... | 12/02/2003 |
| 6654563 | Fiber/wired communication system A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received communication signals to one or more fiber nodes and/or one... | 11/25/2003 |
| 6414767 | Meshed optical network An optical network includes interconnected via an N×N WDM router. The nodes are connected to an optical waveguide ring having a duplex structure. A first set of optical waveguides connects the transmitters in the nodes and a second set of optical wavegui... | 07/02/2002 |
