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7636299 |
Packet repeater
A repeater and method provides a technique to minimize congestion and packet loss, which may be generated when a fault is detected in a ring type packet network or when the network recovers from...
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7623826 |
Wireless repeater with arbitrary programmable selectivity
The invention relates to wireless repeater systems and methods. In embodiments, such systems and methods involve receiving a wireless transmission signal; and processing the wireless transmission...
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7596186 |
Devices and methods of modulation and demodulation enabling the extension or replacement of a communications link, corresponding sender and receiver
A modulation device comprises for each carrier frequency: means of discrimination between a signal coming from a first channel of a communications link and a signal coming from a second channel of...
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7586839 |
Peer to peer backup and recovery
A method in a processing system for managing backup data on a set of nodes in a network data processing system. An inventory of files is generated on a set of nodes in the network data processing...
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7542414 |
Computing a diverse path while providing optimal usage of line protected links
Methods and apparatus for enabling line-protected links to be included in path-protected segments of a unidirectional path-switched ring are disclosed. According to one aspect of the present...
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7529183 |
Method of setting up a backup path in a transport network
Paths in a transport network are identified by labels (n 1 -n 4 , b 1 -b 4 ) and more than one restoration resources that can be used for setting up a particular backup path form a restoration...
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7525960 |
Methods and systems preventing frame mis-ordering in explicitly routed networks
Methods, systems and apparatus are provided which prevent frame mis-ordering in an explicitly routed network when switching from a first path to a second path. In a first embodiment, last frame and...
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7525939 |
Communication system and method using a relay node
A communication node relays a transmission signal transmitted from a desired source node to a target destination node among multiple source nodes and multiple destination nodes. The communication...
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7460471 |
System for motion control, method of using the system for motion control, and computer readable instructions for use with the system for motion control
A motion control system and method that includes a central controller configured to generate first and second demand control signals to be used to define actuation motion of respective first and...
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7440397 |
Protection that automatic and speedily restore of Ethernet ring network
A data relay apparatus stores identification information for identifying itself. A blocking unit blocks a port to avoid an occurrence of a loop path if the data relay apparatus is a master node,...
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7433939 |
Fast reconfiguration of network elements
A method for re-configuring a network element of a transmission network to restore traffic after occurrence of a failure is proposed. Each configuration request is divided into two phases: At first...
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7430397 |
Radio repeater and radio relay transmission method
A radio repeater including at least first and second relay systems, each including a reception antenna configured to receive a radio signal, a loop interference suppressor, connected to the...
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7397761 |
Routing restorable service-level-guaranteed connections using maximum 2-route flows
A packet network employs restorable routing with service level guarantees. Restorable routing generates two disjoint paths through a network of nodes interconnected by links for a connection...
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7376079 |
Backup cell controller
A wireless local area network for data communications between a computer and mobile units is provided with at least two cell controllers connected to the computer and one or more rf ports each...
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7299005 |
Radio frequency repeater with automated block/channel selection
A wireless repeater for receiving, amplifying and transmitting one or more wireless signals. The repeater comprises a signal processing device for determining one or more attributes of a wireless...
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7287081 |
Controlled calls in a transmission network
Commands are shown and described that enable a user to manipulate a call connection for the purpose of maintaining links in a network. The Block command prevents new traffic from being added to an...
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7230915 |
Upper and lower relays and network system
In a network system comprising an upper relay and a plurality of lower relays connected to the upper relay with working links, the lower relays are connected with redundant links, and communication...
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7113699 |
Fault forwarding in an optical network
A system and method for forwarding fault information in an optical network is disclosed. Responsive to a fault being detected at a node, the fault information is forwarded to the destination node...
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7103050 |
Method and means for determining the used bandwidth on a connection
The invention relates to a method for determining the used bandwidth (CCR) on a connection ( 18 ) on which information-carrying units are transported. The duration (ET) of an arrival period, during...
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7009933 |
Traffic policing of packet transfer in a dual speed hub
A system for policing traffic of packet transfer in a hub. The system includes a first circuit and a second circuit and a first data line connecting the first circuit to the second circuit, wherein...
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6925578 |
Fault-tolerant switch architecture
A computer network employs a fault-tolerant or redundant switch architecture. The network includes redundant data paths coupling end nodes and switches. Fault-tolerant repeaters (FTRs) can be...
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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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6912586 |
Apparatus for journaling during software deployment and method therefor
A method that, all-in-one, allows applications to distribute asynchronously large amounts of data from a source node to multiple destination nodes, to process that data on each single node and to...
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6839515 |
Method for establishing a communication on a standby link in optical transmission facilities
A method for standby switching in optical transmission devices is provided, wherein, in addition to a working signal and a protection signal, respective control signals with information concerning...
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6744727 |
Apparatus and method for spare capacity allocation
A method is given for deriving a backup path routing spare capacity template that is feasible, scalable, adaptive, much faster, and near global optimal in redundancy reduction. The method includes...
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6625116 |
System, methods and apparatus for increasing the data rate on an existing repeatered telecommunication channel structure
A system, method, and apparatus for increasing the data rate on an existing repeatered telecommunication channel structure. In illustrative embodiments, replacement transceivers and replacement...
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6574741 |
Communications apparatus with light emitting elements
A communications apparatus having: a communication cable receptacle having signal terminals and power supply terminals for connection to a communication cable having signal lines and power supply...
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6339585 |
Error-recovery mechanism using a temporary forwarder in a wireless-ATM network
A method of transmitting information in a communications system. The method preferably includes the steps of establishing a communications link between a base station and a temporary node,...
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6335939 |
Apparatus and method for selectively supplying data packets between media domains in a network repeater
A repeater provides an efficient interconnection of an IEEE 802.3 10 Mb/s network with an IEEE 802.3 100 Mb/s network using minimal buffering. The repeater includes a filter that selectively...
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6317414 |
Signal switching method
The present invention relates to a signal switching method and apparatus for dividing signals to be switched into a plurality of divided signals and outputting the divided signals at a transmittal...
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6272108 |
Apparatus and method to allow a frame check sequence to determine the updating of adaptive receiver parameters of a high speed communication device
A DSL device performs a frame check sequence operation in a digital signal processor (DSP), i.e., layer one of the OSI seven layer model, heretofore performed only in layer two of the OSI seven...
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6249510 |
Signal protection system for bi-direction ring network
The channel protection facility in a two-fiber bi-directional line switched ring network may be significantly enhanced by protecting the service channels in one of the fibers with corresponding...
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6181676 |
System protection switching
A radio communication network comprising a plurality of communication terminals and a plurality of repeaters intermediate the communication terminals, with wayside communication paths being...
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6144675 |
Clock regeneration apparatus for synchronous data transmission
A clock regeneration apparatus which regenerates and distributes a timing signal in a synchronous data transmission network. The network is organized by a plurality of transmission units being...
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6141320 |
Method and apparatus for nested automatic protection switching
Nested APS is implemented in a simple configuration for synchronous transmission systems such as SONET and SDH. Bits 5 to 8 of the received K1 byte are compared with line numbers of lines...
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6085079 |
Storage device wirelessly connected to communication terminal and communication control apparatus, and system having storage device
A voice storage device monitors wireless signals from a plurality of fixed terminals and a plurality of mobile terminals, which are connected to a main unit. When a channel establishment signal is...
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5978354 |
Optical transmission system and transmission line switching control method
Disclosed is an optical transmission system for transmitting data via an optical transmission line in accordance with a frame format having overhead which includes a K1 byte used for a switching...
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5875210 |
Method and apparatus for repeating data
A physical layer (PHY) device which can operate as a conventional PHY or as a repeater in a communication system. The PHY repeater supports four optional modes which may be enabled by programming...
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5838226 |
Communication protocol for transmission system for controlling and determining the status of electrical devices from remote locations
A communication protocol for a two way transmission system having at least one first transmitter/receiver device, at least one second transmitter/receiver device and at least one repeater for...
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5787271 |
Spare capacity allocation tool
An apparatus and method is described that is used to design a minimal spares network for a given communications network. Three data files are used as input which describe the communications...
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5784404 |
Intelligent repeater functionality
A physical layer (PHY) device which can operate as a conventional PHY or as an intelligent repeater in a communication system. The PHY device supports four optional modes which may be enabled by...
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5774786 |
Method of maintaining calls subsequent to a site controller failure
The present invention provides a method of maintaining calls subsequent to a site controller failure. A site controller broadcasts call information to a plurality of standby repeaters. The standby...
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5724341 |
Network control apparatus
For the purpose of controlling a communication network used for communication of information and having a plurality of transmission units and a plurality of circuits making connections between the...
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5712846 |
Order wire communication control method for line-switched ring network system
In an order wire communication control method in a bidirectional line-switched ring network system, two line terminalends located at both sides of faulty location transmit failure occurrence...
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5712845 |
Method for controlling conditional connections in a synchronous digital telecommunications system
A method for controlling a conditional connection in a synchronous digital telecommunications system, in which a signal has a frame structure has a predetermined number of bytes of fixed length and...
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5651001 |
Method and apparatus for full duplex signaling
A network transmitter device and network receiver device is described. The network transmitter device transmits a first voltage potential, a second voltage potential, a third voltage potential and...
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5386416 |
Repeater having a bypass circuit for passing time division multiplex signals along even though some time slots are not reinjected
When transmitting digital signals using time-division multiplexing via a transmission link with repeaters at which time slots are either only branched or also re-injected, the problem arises of...
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5038140 |
Supervisory system in communication system
In a communication system wherein repeater stations and terminal stations are connected in tandem, a supervisory system in which a logical hierarchical configuration is used for the transmission of...
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5029158 |
Protection switching in a multi-channel communications system
In a multi-channel, multi-site communications system, spans on working channels extending in an overlapping manner among the sites are afforded protection by a protection channel in accordance with...
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4949340 |
Redundant repeater
A redundant repeater connected between two transmission mediums that can operate in a repeat state where packets are repeated between the mediums, and a standby state where no packets are repeated...
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