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7626998 |
Communication device, communication node, and method for transmitting a message
A communication device ( 102 ), communication node ( 104 ), and method for transmitting a message are disclosed. The method includes calculating number of frames ( 402 ) in a message to be...
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7593421 |
Communication control device having multiprocessor
A communication control device comprising a plurality of network processors for performing high-speed communication among these network processors. The communication device connects a plurality of...
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7551564 |
Flow control method and apparatus for single packet arrival on a bidirectional ring interconnect
Embodiments of the present invention are related in general to data flow control in a network and in particular to packet flow control in a bidirectional ring interconnect. An embodiment of a...
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7529267 |
Data transmissions in communication networks using multiple tokens
A network includes multiple nodes interconnected to form a ring topology. These nodes support data transmissions over the network using tokens. To send and receive data over the network, nodes may...
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7512147 |
Method of reserving network bandwidth resources, and communications system and network device using the same
A communications system whose bandwidth resources can be used more efficiently by reserving them on an individual path basis. Upon receipt of a bandwidth reservation message, a path setup initiator...
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7430216 |
Communication apparatus
There is disclosed a communication apparatus designed to assure the execution of ring type multi-address data transmission. In order to ensure that a user see a received image, transfer to a next...
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7408902 |
Method of using a radio network controller for controlling data bit rates to maintain the quality of radio links
A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network...
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7388872 |
Dynamic communication channel allocation method and system
A bandwidth brokering system and method incorporating methodology for supporting self-healing communication rings is disclosed. The present invention utilizes state-based tokens that are...
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7376102 |
Erased frame and idle frame suppression in a wireless communications system
A method of reducing loading on backhaul communications links in a wireless communications system suppresses a portion of the upward flow of frame information for idle and/or erased frames in...
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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...
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7324488 |
Method and system for providing an intelligent data concentrator communicatively coupled to a network by a wireless mode
The present invention presents a method and system for providing an intelligent data concentrator communicatively coupled to a network by a wireless mode. Specifically, the present invention...
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7280550 |
Bandwidth optimization of ring topology through propagation delay compensation
In a ring topology digital network propagation delay is reduced A master node transmits a clock signal into the network in one direction. Each slave node propagates the signal to the next slave...
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7277910 |
System and method for balancing rings coupling routing platforms
A ring access system, for use in system having a plurality of routing platforms coupled by redundant rings, that allows access to either ring when a token is received at a first ring if all...
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7248601 |
Method of allocating bandwidth on request to the stations of a local area network
A method of bandwidth management enabling to insure a guaranteed bandwidth to each station of transmission network comprising a plurality of stations ( 10, 12, 14 ) forming a logical ring wherein a...
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7212540 |
Time slot scheduling for shared-medium communications networks
A method and apparatus for allocating time slots in a communications network, comprising a headend, a plurality of outstations, and a shared medium connecting each outstation to the headend. The...
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7119505 |
Servo motor control system
In a servo control system, a numerical control device and at least one servo amplifier are connected to each other with a serial bus to control a servo motor connected to the servo amplifier. In...
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7103063 |
Apparatus and method for facilitating data packet transportation
A system that facilitate data packet transportation includes multiplexing time-sensitive TDM (Time Division Multiplexed) and other synchronous data, and asynchronous data traffic, onto a...
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7069320 |
Reconfiguring a network by utilizing a predetermined length quiescent state
A network having a plurality of nodes is reconfigured to reflect a change in topology of the network. In particular, upon receiving a reconfiguration request, each node enters a quiescent state for...
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7065039 |
Fiber optic control network and related method
A control network comprises multiple master nodes and multiple slave nodes, connected together in a loop configuration by at least one fiber optic cable. The master nodes share concurrent control...
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7046622 |
Multi-tier, hierarchical fiber optic control network
A control network comprises multiple master nodes and multiple slave nodes, connected together in a loop configuration by at least one fiber optic cable. The master nodes share concurrent control...
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7046621 |
Redundant multi-fiber optical ring network
A control network comprises multiple master nodes and multiple slave nodes, connected together in a loop configuration by at least one fiber optic cable. The master nodes share concurrent control...
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6999460 |
Arbitrated loop port switching
A hub connects groups of nodes to form a separate communication loop permitting access to the full bandwidth of the separate communication loop. The switching hub may operate from a subset of the...
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6978090 |
Optical network architecture
A communications network having two complementary optical networks each connectable to a headend, each optical network comprising a plurality of periodic interleaving filters serially connected by...
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6965560 |
Multi-tier, hierarchical fiber optic control network
A control network comprises multiple master nodes and multiple slave nodes, connected together in a loop configuration by at least one fiber optic cable. The master nodes share concurrent control...
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6961345 |
System, method and apparatus for data transmission
A data transmission system including first and second source devices for transmitting video data (isochronous data) outputted from first and second data output units, and a sink device for...
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6961306 |
Fiber optic control network and related method
A control network comprises multiple master nodes and multiple slave nodes, connected together in a loop configuration by at least one fiber optic cable. The master nodes share concurrent control...
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6920508 |
WDM ring network
A WDM ring network and method for distributing within such ring network for feeding in data and for distributing both working signals and protection signals on different transmission paths and in...
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6904048 |
Sanitizing fiber channel frames
A system and method of sanitizing a data frame from a node in a network loop includes receiving the data frame from the node, and, when the data frame includes invalid data, replacing a first word...
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6885676 |
Broadcasting control system and method in ATM ring network
In a broadcasting control system in an ATM ring network in which a control cell containing control information is transmitted by ATM (Asynchronous Transfer Mode) between a plurality of nodes...
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6816504 |
Method and apparatus for transferring deterministic latency packets in a ringlet
Briefly, in accordance with one embodiment of the invention, a method of using a bypass buffer in a node coupled to a ringlet includes the steps of: writing a packet of binary digital signals on...
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6807190 |
Survivable distribution of broadcast signals in loopback rings
A node for use in a multi-source ring transmission system includes a controller and storage. Identifiers, such as ring addresses, for the relative first and relative last source nodes within the...
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6795865 |
Adaptively changing weights for fair scheduling in broadcast environments
Adaptively changing weights for fair scheduling in broadcast environments. In one embodiment, a computer-implemented method allocates bandwidth among a plurality of flows, such as nodes, sharing an...
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6700892 |
Communication system for E1/T1
A method of exchanging data streams between a local exchange and a number of access devices for serving a plurality of destination users, the method comprises the steps of: (a) providing a local...
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6675247 |
Loop formation eliminating apparatus of a serial bus system and method thereof
An apparatus for eliminating a loop formation in a serial bus system (IEEE1394) and a method therefore are disclosed. The apparatus includes a control state. The method includes judging whether a...
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6657951 |
Backup CRF VLAN
A backup CRF VLAN arrangement provides an alternate, redundant path for traffic between undistributed Concentrator Relay Functions (CRFs) located on separate switches interconnected by trunk links...
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6600753 |
Sanitizing fibre channel frames
A system and method of sanitizing a data frame from a node in a network loop includes receiving the data frame from the node, and, when the data frame includes invalid data, replacing a first word...
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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...
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6504823 |
Network monitoring system and method thereof
A master node and slave nodes which are connected in a ring-like manner transmit commands in one direction, each of the nodes transmits a state monitoring command for monitoring the operational...
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6501761 |
Modular network switch with peer-to-peer address mapping communication
Modules of a network switch receive data transmissions from network stations via its I/O ports, each data transmission including an address of a source network station sending the transmission and...
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6496514 |
Old-port node detection and hub port bypass
A hub port in a Fibre Channel loop for detecting and bypassing attached node ports in an OLD-PORT state is disclosed. The hub port includes a hub data source, a detect circuits, and an output...
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6487606 |
System and method for delivering messages through a totem communications system
An improvement is disclosed for a Totem system having a network and a plurality of host processors connectable to the network, each of which host processors includes a CPU and is configured for...
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6453259 |
Vehicle entertainment system having built-in test environment server
Line or shop replaceable units (LRUs or SRUs) of a vehicle entertainment system are programmed as microservers to receive and carry out requests for testing the LRUs/SRUs from a browser connected...
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6414941 |
Ring network supervisory system
A communication frame has a counter value which is updated each time the communication frame passes through a node, and a source address. Therefore, upon receiving the communication frame, the node...
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6377998 |
Method and apparatus for performing frame processing for a network
An improved frame processing apparatus for a network that supports high speed frame processing is disclosed. The frame processing apparatus uses a combination of fixed hardware and programmable...
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6373826 |
Spanning tree algorithm
In the situation that data switching is incorporated in a wide area telecommunications network it is advantageous to use a local area network protocol such as ethernet which allows network...
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6330245 |
Hub system with ring arbitration
A data network hub unit is stackable with other such units to constitute a hub in which each of the units can supply data packets to network data destinations and receive data packets from network...
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6320871 |
Communication network
A master station 1 1 produces a token packet for isochronous data in which a slave station 1 2 and slave stations 1 3 and 1 4 serving as a sending station and receiving stations are designated...
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6278695 |
Multi-port LAN switch for a token-ring network
A multi-port LAN switch is provided that enables attached network devices to both communicate directly and to insert into a token-ring network through an attached concentrator. Each port of the...
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6229816 |
Combining network and mechanism for allocating resources of such a network
A network for interconnecting network equipment units via a ring optimizes access to the ring by the equipment units in that the capacity of the ring is permanently shared between the various...
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6201816 |
Token ring speed detection
A method of inserting an end station (6-8) into a token ring network (2). The end station (6-8) attempts to open into the ring network in one insertion mode, the end station responding to an...
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