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5712712 |
Rapid delivery of facsimile or other data sets to a massive number of recipients
A method and apparatus for rapid delivery of facsimile or other data sets to a massive number of recipients is disclosed. In accordance with the invention, the data set is distributed and delivered...
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5696763 |
Multicast routing technique
Multicast video services are provided in a network having a star topology. The network illustratively compromises a switched hub having a shared transmission medium and a plurality of ports. An...
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5600639 |
Broadcast method for simultaneous switching of an announcement to a plurality of subscribers of a communication system
A broadcast method for simultaneously switching an announcement to a plurality of subscribers of a communication system is provided. Given announcements that are to be disseminated according to the...
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5553135 |
Point-to-multipoint communication system and method
A point-to-multipoint communication system includes a central telephony unit having at least one telephony module interface coupled to at least one set of telephony modules. Each set of telephony...
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5539737 |
Programmable disrupt of multicast packets for secure networks
A secure repeater implementing data packet masking includes a programmable and selective, on a per port basis, multicast response. A multicast controller receives a multicast identifier extracted...
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5469438 |
Method of transmitting signals in an extendible local area network
Briefly, in accordance with one embodiment of the invention, an extendible local area network includes a hub station including a memory and at least one hub station segment. The hub station segment...
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5461415 |
Look-ahead scheduling to support video-on-demand applications
A system and method of supporting pause-resume in a video-on-demand service of a type which can accommodate multiple viewers sharing a common data stream is described. When a video server receives...
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5459719 |
Data transmission control method and station used for the same
A source station writes addresses of destination stations in a data field of a frame, and sends the frame to a data transmission network by using one of those address as a destination address. A...
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5459725 |
Reliable multicasting over spanning trees in packet communications networks
A packet communications network in which multicast transmissions are made reliable by transmitting acknowledgements to all neighbors of every receiving node, including the source node. This allows...
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5450405 |
Method for establishing and maintaining communication processing information for a group call
When a group communication group call is initiated in a multi-site communication system, the communication processing information for that particular communication group call must be established....
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5450407 |
Encapsulation of an address within a forwarded frame in a computer communications system
A frame having a desired destination address written into the destination address field of the frame is transmitted onto a first communications system, the frame is received by the apparatus, the...
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5420923 |
Addressed messaging in a cable television system
A method of transmitting addressed messages to subscribers comprises the steps of defining the group or individual subscriber to be addressed, creating the message, assigning the message to the...
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5420866 |
Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
In a packet-based multiplexed communications system, a method of providing different sets of conditional access information to a remote location comprises the steps of: (a) for each different set...
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5418780 |
Routing logic means for a communication switching element
Routing logic (RL) for a communication switching element (ISE) of a self-routing multi-stage switching network and able to transfer cells or packets of information from any of its inlets (I1/32) to...
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5414717 |
Multiplex communication control apparatus
A NAK register, for storing negative acknowledgment data in the case where a transmission has not been received normally, is newly installed as an RSP register other than a ACK register. By...
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5394397 |
Shared buffer memory type ATM communication system and method with a broadcast facility
An ATM switching system which includes an input interface which is provided every incoming line and serves to convert header information of each input cell into internal routing information, a...
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5390172 |
Electronic distribution system and method
An electronic distribution system and method for combining a digital data signal, such as digital broadcast material, with instructions and a destination list for electronic delivery to a...
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5387927 |
Method and apparatus for broadband transmission from a central office to a number of subscribers
A method of transmitting broadband video services from a broadband digital signal source which includes forming the digital signal from said source into a plurality of channels of digital signals...
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5381459 |
System for distributing radio telephone signals over a cable television network
A system for distributing remote telephone traffic between a base station and remote antenna site is disclosed. The base station and remote antenna sites are connected via a cable television...
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5343475 |
Multiplex transmission system
A multiplex transmission system of this invention includes a plurality of multiplex nodes interconnected by a common multiplex transmission line. A plurality of groups of different combinations of...
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5287530 |
Multicast server apparatus
A multicast server apparatus operative to effect the onward transmission of data cells to a plurality of different addresses includes a switch function unit having an input port, an output port and...
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5237571 |
Broadcast system for distributed switching network
The broadcast system of the switching network provides for the broadcast or multicast of interface switch status broadcasts and interface switch event broadcasts. An interface switch feature...
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5142532 |
Communication system
A bidirectional broadband and telephony network is controllable from an exchange or head end of the network. An optical fiber (16 ) carries the telephone services to customers' premises (30, 31)...
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5117430 |
Apparatus and method for communicating between nodes in a network
A plurality of nodes in a network are connected in a tree arrangement. A master control node is at the root of the tree. Each connection between a parent node and a child node in the tree consists...
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5103444 |
Conference connection method in a multicast packet switching network
A conference connection method for use in a multicast packet switching network. Once the packet switches and inter-switch links to comprise a multicast connection among three or more endpoints are...
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5073980 |
Photonic switch employing shared data transmission facility
An optical message distribution system is described which includes both a plurality of message sources and destinations. Each optical message includes a destination address portion and a data...
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4998245 |
Information transmission system having collective data transmission and collection devices
An information transmission system having a plurality of communication control units connected to one another through an information transmission path in a communication network comprises devices...
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4939727 |
Associated memory computer with floating non-wired cells
The present multiprocessor computing architecture uses a Host device to communicate directly with each processor of an array. The processors are identical, but initially unindividuated. Each is...
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4933936 |
Distributed computing system with dual independent communications paths between computers and employing split tokens
This is a distributed computing system providing flexible fault tolerance; ease of software design and concurrency specification; and dynamic balance of the loads. The system comprises a plurality...
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4926375 |
Multiple nodes broadcast communication method with receiver identification by bit position in transferred massage
A data sharing mechanism employs a broadcast bus communication system to physically interconnect various control and monitoring nodes that cooperate in controlling a physical process. Shared, or...
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4897834 |
Bit oriented communications network
A bit oriented communications network includes a plurality of nodes interconnected by a broadcast communications medium. Each node samples inputs connected to it and broadcasts the values of those...
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4887269 |
Apparatus for the reception of radio broadcasted digital signals
Digital characters are broadcast by grouping the characters into a series of blocks, and providing each block with a synchronization character and an identifying prefix to form a digital package....
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4807224 |
Multicast data distribution system and method
A data distribution system and method for the timely, efficient and reliable distribution of data to an unlimited number of remote receiver installations. A data source assembles data packets, and...
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4796025 |
Monitor/control communication net with intelligent peripherals
A monitor/control communication net with intelligent peripherals, that is, peripherals which are capable of monitoring and/or controlling various devices in accordance with messages received from a...
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4792942 |
Method and apparatus for multi-destination communication processing in packet storage/exchange node
In a method and an apparatus for multi-destination communication processing in a packet storage/exchange node, a line control module controls transmission and reception of a message that contains...
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4768189 |
High capacity communication utilizing static, OR-type channels
Methodology and associated circuitry (131,141-143, 151,152,161,162,171-174,181) are disclosed for achieving contention-free broadcasting over one or more buses interconnecting a plurality of...
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4740954 |
Multicast routing algorithm
A method for routing data packets correctly and efficiently among a plurality of hosts in a multicast is disclosed. The hosts are connected to a packet switching network comprising a plurality of...
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4736371 |
Satellite communications system with random multiple access and time slot reservation
A multiple access data communication system is disclosed wherein a communication channel is shared by a plurality of stations. The channel is divided into frames each being partitioned into time...
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4587381 |
Line identification apparatus for a telecommunications exchange
A telecommunications exchange includes line identification apparatus in which signals on additional wires (the `p` wires) (1) which are switched in parallel with the speech pairs are used to...
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4498169 |
Multiaccess broadcast communication system
A time division multiple access communication system utilizing a transmission medium, such as the broadband cable of a CATV system having a retransmission facility at the head end thereof to which...
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4271507 |
Communication broadcast channel interface
The Local Network Architecture (LNA) is an organization of a data communication network where the control and access to the communication channel is handled local to each user device interface. The...
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3821706 |
Title is not available
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