Matches 1 - 44 out of 44
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EP1195955B1 Switch transferring data using data encapsulation and decapsulation  
Abstract of EP1195955 A method for encapsulating and decapsulating information into a data packet being transmitted through a plurality of switches. The method has the steps of receiving a data...
7020166 Switch transferring data using data encapsulation and decapsulation  
A method for encapsulating and decapsulating information into a data packet being transmitted through a plurality of switches. The method has the steps of receiving a data packet in a first switch...
6980531 Multiple access spread spectrum switching methodology  
A low-cost, low-power, low-complexity, small, high-reliability, robust, seamless satellite communication network is described. The network performs encoding of a user signal at the customer...
EP1004185B1 A METHOD AND A SYSTEM FOR INTERCONNECTING RING NETWORKS  
Abstract not available for EP1004185 Abstract of corresponding document: US6731597 A system and a method for maintaining operation of a signaling interconnection between a first ring network and a...
6731597 Method and a system for interconnecting ring networks  
A system and a method for maintaining operation of a signaling interconnection between a first ring network and a separate second ring network. Each ring network comprises two communication paths...
EP1121785B1 NETWORK AND COUPLING DEVICE FOR CONNECTING TWO SEGMENTS IN SUCH A NETWORK  
Abstract not available for EP1121785 Abstract of corresponding document: WO0018064 The invention relates to a network and a coupling device for connecting two segments in such a network. Said...
6563833 Combinatorial design method and apparatus for multi-ring networks with combined routing and flow control  
A method and apparatus are disclosed for designing multi-ring networks based on generalized quadrangles of combinatorial design theory, together with a scaling algorithm for realizing networks of...
6425106 Extended ECC system  
A packet is originated in a unit 10 as a data field DATA 11 plus a CRC (cyclic redundancy check) check field CRC 12 by a CRC circuit 13. This packet has a header HDR (with a routing...
EP1195955A2 Switch transferring data using data encapsulation and decapsulation  
A method for encapsulating and decapsulating information into a data packet being transmitted through a plurality of switches. The method has the steps of receiving a data packet in a first switch...
EP0682790B1 METHOD AND SYSTEM FOR SYNCHRONIZING ENCODERS AND DECODERS IN COMMUNICATION NETWORKS WHEN ERRORS ARE DETECTED  
Abstract not available for EP0682790 Abstract of corresponding document: WO9514971 The method and system (400) synchronize an encoder of an encoder error synchronizer (402) and a decoder of a...
EP1139602A1 Method and device for multicasting  
A group multicasting network comprises a plurality of ring networks interconnected by a tree network. The rings, which include multicast group members, are connected at the leaf nodes of the tree...
6278709 Routing switch  
In a routing switch a technique for routing messages from an input port to an output port involves storing a plurality of sets of routing information in the routing switch, each set associated with...
EP1121785A2 NETWORK AND COUPLING DEVICE FOR CONNECTING TWO SEGMENTS IN SUCH A NETWORK  
Abstract not available for EP1121785 Abstract of corresponding document: WO0018064 The invention relates to a network and a coupling device for connecting two segments in such a network. Said...
5954835 Check sequence preservation  
A packet is originated in a unit 10 as a data field DATA 11 plus a CRC (cyclic redundancy check) check field CRC 12 by a CRC circuit 13. This packet has a header HDR (with a routing information...
5878231 System for packet filtering of data packets at a computer network interface  
A system for screening data packets transmitted between a network to be protected, such as a private network, and another network, such as a public network. The system includes a dedicated computer...
5805842 Apparatus, system and method for supporting DMA transfers on a multiplexed bus  
An apparatus and method for enabling a Peripheral Component Interconnect ("PCI") bus to support direct memory access ("DMA") transfers. The apparatus comprises a plurality of DMA controllers, a...
5537413 Frame removal mechanism for token ring networks  
In accordance with principles of the invention, a frame removal mechanism for token ring networks is disclosed. The disclosed system uses strip delimiter frames. The system transmits one or more...
5530808 System for transferring ownership of transmitted data packet from source node to destination node upon reception of echo packet at source node from destination node  
The present invention provides a method in a data processing system for efficiently sending a data packet from a source node to a destination node. The data processing system includes a...
5481538 Frame removal mechanism for token ring networks using one or more start strip delimiter frames or circulation time interval  
Frame processing apparatus, and a related method for its operation, for use in a station connected to a token ring network, to ensure rapid stripping of frames from the network without reference to...
5477540 Frame removal mechanism using end delimiter frames for token ring networks  
A system for stripping frames transmitted by a station on a token ring network is disclosed. During operation of the system, the station receives a grant of permission to transmit onto the network....
5377190 Frame removal mechanism using frame count for token ring networks  
A system for stripping frames transmitted by a station on a token ring network is disclosed. During operation of the system, the station receives a grant of permission to transmit onto the network....
5331636 Frame removal mechanism using count of frames and delimiter frame for token ring networks  
A station transmits a sequence of one or more frames on a token ring, keeping count of the frames transmitted. At the end of the transmitted frame the station originates onto the ring one or more...
5285449 Protocol for hybrid local area networks  
A hybrid local area network (LAN) for the interconnection of multiple stations. The LAN consists of an N-port non-blocking switch and multiple subnetworks interconnected via passive optical...
5280478 No-owner frame and multiple token removal mechanism for token ring networks  
A ring purging station for a token-ring network is disclosed. The station performs purging operations to remove no-owner frames and frame remnants from the network. The station begins a purging...
5265092 Synchronization mechanism for link state packet routing  
A method of providing loop free and shortest path routing of data packets in a network having a plurality of switches, routing messages for communicating network topology information between the...
5257264 Automatically deactivated no-owner frame removal mechanism for token ring networks  
A purging station selected for removal of no-owner frames in a token ring network, and a corresponding method for its operation. The purging station initiates a purge cycle only if the network is...
5251215 Modifying check codes in data packet transmission  
Disclosed is a method and circuit for modifying the check code of a data packet based on a first seed to accommodate the addition or substraction of a header. A number of bits, which include a...
5216670 Message stripping protocol for a communication network  
A method of discarding unwanted data packets from a communication network of the type having a multitude of nodes connected together to form a circular network. Each node has an address, and each...
5189414 Network system for simultaneously coupling pairs of nodes  
A network system includes a plurality of low-order networks which each have a plurality of nodes coupled through data transfer paths and are mutually coupled by a repeater for data communication...
5168272 Network system for transmitting vehicle data  
A network system for transmitting vehicle data has a bidirectional multidrop ring in which data communication between data transmitting nodes and corresponding data receiving nodes is carried out...
5163056 Apparatus for carrying out serial control  
An apparatus for carrying out serial control includes a single main controller and a plurality of node controllers for directly controlling a variety of sensors and actuators. The node controllers...
5153876 Communication protocol for statistical data multiplexers arranged in a wide area network  
A network topography and associated protocol for exchanging data and control information between stations arranged in a daisy-chain wide-area-network (WAN) and a local-area-network (LAN). The...
5050165 Bridge circuit for interconnecting networks  
A bridge circuit is provided for connecting at least two networks. The addresses of sending and receiving stations in a message received from a network are subjected to cyclic redundancy checking...
5029075 Routing method in a computer communication network system  
Predetermined information is included in an information portion for a given node, which is included in load information sent through a link selected as a circuit for sending data to the given node....
5027350 Method and apparatus for providing a local area network bridge  
A communication bridge interconnecting two or more local area networks. Input buffers forward packet headers of received data packets through to a routing engine. The routing engine contains one or...
4964127 Data validity checking means  
A data handling system wherein data are arranged into frames including an information data section and a frame check sequence (FCS) section, and wherein a stamp section has to be appended/deleted...
4922503 Local area network bridge  
In a bridge for interconnecting local area networks, the decision on whether or not to forward a frame is based on the frame's destination address. This is made possible in a practical bridge by a...
4831620 Controller for controlling multiple LAN types  
A local area network (LAN) system is provided that is capable of accommodating a variety of computer subsystem types, and having a LAN controller which can control at substantially the same time a...
4827477 Bus interface unit  
A bus interface unit for interfacing a serial bit data bus to a parallel bit data handling system includes a receiver for acquiring serial data from the bus. A clock generates a clock signal at a...
4797881 Bridge system for connecting networks  
A large number of local area networks are each connected to a backbone network through a network interface module (NIM). The NIM transmits messages from one local area network to another local area...
4769814 Method for establishing a limited broadcast path within an interconnected network  
A method for configuring/reconfiguring a limited broadcast route within a bridge-connected network. The method includes an algorithm, which configures a minimum spanning tree route. A source node...
4737953 Local area network bridge  
A method for operating a communication network bridge is disclosed. The bridge receives a message frame from a first network connected thereto and reads the source and destination addresses of the...
4723244 Method and apparatus for preserving the integrity of the error detection/correction word in a code word  
An apparatus and method for use in a communications system to modify a check word associated with a data word to retain the integrity of the former when the latter has been changed at a node in the...
4707827 Bridging techniques for local area networks  
A communications system includes one or more channels each comprising a plurality of LANs having multiple stations. The LANs of a particular channel are interconnected by a bridge interface, the...
Matches 1 - 44 out of 44