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5546542 Method for efficiently determining the direction for routing a set of anticipated demands between selected nodes on a ring communication network  
A method for designing a ring communication network is presented. A candidate ring defined by a candidate subset of nodes and a candidate routing is identified. A direction of communication is...
5544330 Fault tolerant interconnect topology using multiple rings  
An interconnect topology providing enhanced fault tolerance to a multi-component data processing system. The topology utilizes a plurality of rings for interconnecting multiple system components,...
5522047 Graceful insertion of a tree into a ring network  
Systems and methods for providing graceful insertion of a station or tree into a ring type network. According to one aspect of the invention, graceful insertion is achieved after coupling a tree...
5504918 Parallel processor system  
A multiprocessor system is disclosed wherein the processors communicate between each other asynchronously while carrying out synchronous processing. Each processor is associated with a cell...
5485578 Topology discovery in a multiple-ring network  
The present invention is a system for discovering the topology of a network. A source node may issue ping symbols that are addressed to specific, potentially existing, target nodes. An echo symbol...
5463763 Apparatus and method for supervising multiprocessor communications using messages transmitted between processors in a circular fashion  
A multiprocessor system includes a plurality of processors each of which functions a data processing node. Each of the processors comprises an address management table in which prior node and next...
5461608 Ring network with temporary master node for collecting data from slave nodes during failure  
In a ring network where network nodes are interconnected by an optical fiber ring, one of the nodes acts as a master node and each of the other nodes acts as a slave node. The master node...
5436624 Communication system with monitoring means connected in parallel to signal carrying medium  
A communication system comprises a signal carrying medium (8) coupled to a series of end station ports (2-5). The end station ports (2-5) enable respective end stations (21) to transmit signals...
5432909 Method and apparatus for redistributing multiple distributed data sets in a ring connected multiprocessor  
A method and apparatus for interprocessor communication using a ring of processors linked together with independent direct memory access type communication interfaces. The interfaces...
5414813 Direct transfer from a receive buffer to a host in a token-passing type network data transmission system  
A data transmission system using media access control of a token-passing type including multiple nodes connected to a common transmission path, wherein each node transmits data in a predetermined...
5414642 Method and apparatus for combining data sets in a multiprocessor  
A system that determines whether a multi-processor operation is possible without data set expansion by comparing the size of the data sets and the position of elements of the data sets, the...
5408610 Communication control apparatus which communicates management information in a communication system  
First, second and third communication control apparatus are arranged in a logic ring, with management information, such as address information, being transmitted in a data packet transmitted...
5383191 Dual ring reconfiguration switching unit  
A multiport access and reconfiguration unit for use in a dual token ring network is provided with three adapters and, depending on error conditions, can assume one of a plurality of recovery...
5349644 Distributed intelligence engineering casualty and damage control management system using an AC power line carrier-current lan  
A distributed artificial intelligence data acquisition and equipment control system forms a local area network (LAN) over the AC power lines of a vessel for communicating shipboard engineering...
5333267 Ring interconnect system architecture  
An improved computer system ring interconnection comprising a plurality of nodes each such node being associated with at least one of a plurality of computer system components; transmission...
5303387 Arrangement for utilizing a passive line concentrator in a managed token ring network  
An arrangement whereby a passive line concentrator (100) can be connected in a managed token ring network includes a special concentrator port (200) in an active concentrator (10) which is adapted...
5276859 Accelerated token ring network  
Methods and apparatus, including a concentrator, for operating a station coupled to a ring in a token ring network. The ring carries signal at an active monitor clock rate. The method includes the...
5262965 System and method for high speed computer graphics image computation using a parallel connected, asynchronous multiprocessor ring coupled to a synchronous special purpose video processing ring  
A high performance computer graphics image computation system architecture is disclosed. The system architecture includes a computational processor ring which includes a plurality of closely...
5237659 Gateway device for connecting a computer bus to a ring network  
A gateway device for connecting a computer bus to a high-speed fiber optic ring network including an I/O host module of the computer connected to the computer bus and having at least one external...
5208912 Joint information processing system comprising a plurality of terminal apparatuses guaranteeing identicalness of data processing results  
In a conferencing system including a plurality of workstations each having a multiwindow function connected to each other via a network, programs loaded in the respective workstations to control a...
5191652 Method and apparatus for exploiting communications bandwidth as for providing shared memory  
A multiprocessor system linked by a fiber optic ring network uses some of the bandwith of the ring network as a shared memory resource. Data slots are defined on the network which can carry...
5182798 Multiple material processing system start-up  
A material processing system comprising a plurality of peripheral modules and a base module, the base module including a central processor, each of the peripheral modules including a peripheral...
5179715 Multiprocessor computer system with process execution allocated by process managers in a ring configuration  
In this computer system, a plurality of processing elements (PE), each having at least two channel processors which manage corresponding communication channels separately, are connected in a ring...
5109484 Self configuring terminal which polls loop network and generates list of connected devices for use in selectively downloading control programs  
Apparatus and method for defining I/O devices connected to terminals of a distributive data processing system and for downloading programs from a control computer into said terminals. A global...
5056012 Memory addressable data transfer network  
A data transfer network for computers is disclosed which combines characteristics of both multi-port memory devices and local area networks. Each computer is coupled to the network via a data...
5053946 Token ring network having token request mechanism  
A token ring network includes a plurality of stations interconnected to transmit frames containing information. A station may originate a frame transmission if it has information to transmit and...
5045940 Video/audio transmission systsem and method  
The invention is a data pipeline system which synchronizes the display of digitzed audio and video data regardless of the speed at which the data was recorded on its linear medium. To do this, the...
5041963 Local area network with an active star topology comprising ring controllers having ring monitor logic function  
A star local area network includes a ring bus hub (4) capable of being connected to a plurality of nodes (3, 5, 9) geographically distant from the hub by means of low speed serial links (18, 19,...
5010479 Information processing and storage system with signal transmission loop line  
An information processing system includes a loop-shaped signal transmission line for transmitting data to be stored, a plurality of transmission control processors disposed around the transmission...
4979096 Multiprocessor system  
A multiprocessor system includes processor units connected physically in one-dimensional fashion along a ring bus located at the node of each processor element and associated local memory, so that...
4918644 System containing loop shaped transmission paths for transmitting data packets using a plurality of latches connected in cascade fashion  
A data processing apparatus includes two data transmission paths formed likewise in a loop fashion. These data transmission paths include a plurality of latch registers connected in a cascade...
4893231 Multi-node data processing system  
Multi-node data processing apparatus is described, in which the nodes are interconnected by multiple transmission links. Before a node can transmit a message, it must acquire a unique transmission...
4884192 Information processor capable of data transfer among plural digital data processing units by using an active transmission line having locally controlled storage of data  
In an information processor, input interface units (161, 162) are connected to one ring data bus (191) through jointing units (201, 202) and data processing units (181 and 185) are connected to...
4831512 System and method of message communication capable of checking consistency among data  
A message processing system has a common transmission medium and a plurality of processors or processing equipments connected to the common transmission medium. The processors process messages...
4766530 Token passing scheme for a predetermined configuration local area network  
A system having a predetermined number of stations or nodes which all receive the broadcast messages. Each message includes a token value used by each node to access a token ring list. The entry...
4763254 Information processing system with data storage on plural loop transmission line  
An information processing system includes a loop-shaped signal transmission line for transmitting data to be stored, a plurality of transmission control processors disposed around the transmission...
4723208 System and method for communication between nodes of a closed loop local communication path  
In an exemplary embodiment a transmission link coupler is provided at each node. In a transmission mode, the coupler provides a transmission path which transmits incoming messages directly to the...
4698629 Method and apparatus for coordination among distributed subsystems  
A plurality of subsystems are connected in common to a single information transmission loop through associated subsystem controllers, coordinators and information transmission controllers...
4667287 Multiprocessor multisystem communications network  
A plurality of multiprocessor systems is arranged in a high speed network to allow any processor in one system to communicate with any processor in another system. The network is configured as a...
4517644 Symmetry type loop communication system  
A symmetric type loop communication system having no master station, in which a plurality of control stations connected to a loop communication path each have a timer with its set time different...
4509117 Communications network access rights arbitration  
Transferring mastership in a multi-master communications channel of a system having a plurality of intercommunicating stations is accomplished by a method which includes the grouping into a...
4489379 Distributed data processing in ring-structured networks architected for full duplex peer-to-peer operation of processing stations and uninterruptible transfer of long data records between stations  
In a ring-structured data communication network, in which plural data processing systems exchange data and control information on a full duplex peer to peer basis, systems are presently...
4482980 Hybrid optical/electrical data highway  
A communications system with a local network having two metallic cables providing redundant channels between stations of a group with redundant optical rings forming a highway interconnecting...
4477882 Communications network for programmable controllers  
Programmable controllers are connected in a ring by serial data links. Each controller periodically transmits information packets on the ring which contain its I/O image table data. All...
4471466 Apparatus for conforming the length of a data stream through a transmission line  
A data ring circulates a serial stream of data bits between ring stations. The data stream is made of packets and each station may add data to and extract data from the packets. As the number of...
4468750 Clustered terminals with writable microcode memories & removable media for applications code & transactions data  
A clustered system of data-entry terminals includes a plurality of physically separate data-entry terminals coupled to a communications link in a cluster. Each of the terminals includes a...
4441152 Data processing system having ring-like connected multiprocessors relative to key storage  
A multiprocessor system includes a plurality of central processing units (CPUs), which have a main storage in common, and a key storage for storing therein control information for storage...
4430699 Distributed data processing system  
A distributed data processing system having several local systems (LS) between which communication is provided via clearly defined functional layers. A functional coordination layer managed by...
4385351 Multiprocessor system with apparatus for propagating cache buffer invalidation signals around a circular loop  
This data processing system includes a main memory which is shared by a plurality of central processor units (CPUs) which are also coupled in cascade in a closed circular path. Each CPU has a...
4354226 Communication terminal for interconnecting programmable controllers in a loop  
A communications terminal for use with a programmable controller to permit transmission of status and control information between that programmable controller and a plurality of programmable...

Matches 351 - 400 out of 412 < 1 2 3 4 5 6 7 8 9 >