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| Number | Title | Issue Date |
| 5193088 | High speed ATM cell synchronizing switching apparatus A high speed ATM cell synchronizing switching apparatus is disclosed, and the apparatus includes: a plurality of ATM cell inputting circuits 1 for receiving optical ATM signals; a routing control circuit 2 for receiving address information; a cell gate ci... | 03/09/1993 |
| 5189668 | ATM switch and ATM multiplexer An ATM switch has a plurality of concentration space-division switches each constituted with an S-stage connection of switch modules. Each of the switch modules includes M buffers and a selector for selecting an arbitrary one of outputs from the M buffers... | 02/23/1993 |
| 5179552 | Crosspoint matrix switching element for a packet switch A crosspoint matrix switching element and associated method for a large (e.g. approximately 1 Terabit/second) packet switch (200) or a non-buffer based statistical multiplexor (1810), using a crossbar matrix network in which, first, the output ports of in... | 01/12/1993 |
| 5179551 | Non-blocking multi-cast switching system A multi-cast switching system comprised of a pair of high speed data networks, each of said data networks being either a Benes network, a Clos network, or a Cantor network, and configured to provide point-to-point switching only in the first network and m... | 01/12/1993 |
| 5168492 | Rotating-access ATM-STM packet switch A new architecture of an ATM or ATM/STM switching node which is functionally equivalent to the classical buffer-space-buffer (BSB) architecture is disclosed. In the basic embodiment, it uses middle packet buffers with a rotator (commutator) at its input a... | 12/01/1992 |
| 5153920 | Method and circuit arrangement for the acceptance and forwarding of message cells transmitted according to an asynchronous transfer mode by an asynchronous transfer mode switching equipment For receiving and forwarding message cells transmitted according to an asynchronous transfer mode (ATM) by an ATM switching equipment which comprises a multi-stage reversing switching matrix network, each of the message cells has a routing information blo... | 10/06/1992 |
| 5146454 | System and method for controlling the access rates of packet switching network stations A data packet switching network is formed by a number of transmitting/receiving stations which are interconnected by radio communication channels through which data packets can be transferred from one station to another according to a routing scheme. Each... | 09/08/1992 |
| 5144619 | Common memory switch for routing data signals comprising ATM and STM cells In order to handle asynchronous transfer mode (ATM) cells and synchronous transfer mode (STM) words in a single switch, STM words incoming on a channel are accumulated until a desired data block is available and a switch header is then added thereto in or... | 09/01/1992 |
| 5132966 | Call control with transmission priority in a packet communication network of an ATM type In a high-speed packet multiplex communication network including a transmission line with a predetermined bandwidth and accommodating a plurality of information sources, the sources having various packet delivery rates over a range of between a peak rate ... | 07/21/1992 |
| 5130978 | Method of managing traffic flows in a wideband integrated services digital network, and a network for implementing the method Method and apparatus for controlling traffic flow in a wideband integrated services digital network including an asynchronous time division multiplexed switch network and a plurality of terminals operating at various data rates and providing different typ... | 07/14/1992 |
| 5127000 | Resequencing system for a switching node Resequencing system for a switching node (SN) of a cell switching system wherein cells or packets, of fixed or variable length, transmitted from an input to an output of a switching network (SNW), are subjected in the network to variable initial time dela... | 06/30/1992 |
| 5119370 | Switching node for a communications switching network A switching node for an optical communications switched network includes a circuit switch for making relatively long duration circuit-switched connections and an ATM message switch, which is coupled in the network via the circuit switch, for communicating... | 06/02/1992 |
| 5101404 | Signalling apparatus for use in an ATM switching system A subscriber line signalling apparatus for use in an asynchronous mode communication system includes a switching circuit having a plurality of input terminals and a plurality of output terminals. The switching circuit selectively communicates fixed length... | 03/31/1992 |
| 5084867 | Routing method and routing system for switching system having a plurality of paths A routing method routes cells which are transferred through one of a plurality of paths within an asynchronous transfer mode (ATM) switching system selected by routing information. The routing method includes the steps of adding first routing information ... | 01/28/1992 |
| 5050163 | Method of ATD (asynchronous time division) switching of data packets and an arrangement for implementing this method A method of ATD switching of data packets according to which various users are connected to a single subscriber line. By providing each data packet for each connection from a user to a receiver with a same identification code, specific information can be ... | 09/17/1991 |
| 5042032 | Packet route scheduling in a packet cross connect switch system for periodic and statistical packets Routing of packets in a packet cross-connect switch is determined based on the particular type of packet, i.e., statistical or periodic, grade of service assigned to the packet, e.g., minimum delay, the actual queuing delay at output assigned to the parti... | 08/20/1991 |
| 5029161 | Maintenance system for subscriber terminal management data in a packet switched network A maintenance system for subscriber management data in a packet switched network which is to be used when subscriber terminal management data in a packet switching exchange is changed, comprises a step in which a change information file in a data accumula... | 07/02/1991 |
| 5016245 | Modular expandable digital single-stage switching network in ATM (Asynchronous Transfer Mode) technology for a fast packet-switched transmission of information Modular expandable digital switching network in ATM (Asynchronous Transfer Mode) technology for a fast packet-switched transmission of information. The switching network has a J×J array of pre-switching modules and a 1×J array of final switching modules... | 05/14/1991 |
| 4995032 | Label-switching and control interface for asynchronous fast-packet switching A label-switching and control interface for asynchronous fast-packet switching consisting of a set of label-switching and cell-processing units controlled by a suitable control unit. The units operate at each multiplex level in real time thanks to a micro... | 02/19/1991 |
| 4975903 | Digital timeslot and signaling bus in a digital PBX switch A switch in a digital PBX system supporting both centralized an distributed switching techniques. The switch has nearly universal and parallel bus between line card modules. Then a timeslot bus capable of having more than one module may communicate voice ... | 12/04/1990 |
| 4955018 | Protocol for network having plurality of intelligent cells A network for sensing, communicating and controlling where a plurality of cells communicate in the network through packets. A first cell transmits a sequence number and a retransmit flag with the messages. The messages are acknowledged by a second cell if... | 09/04/1990 |
| 4953157 | Programmable data packet buffer prioritization arrangement In a packet network, each data packet that is transported through the network to a destination node is assigned one of 2**N priority levels based on the type of information contained in the data packet. A data packet containing system control information ... | 08/28/1990 |
| 4926416 | Method and facilities for hybrid packet switching In fast packet-switching networks, packets of particular connections (CS1, CS2) (e.g., voice, moving-image) are to be treated with priority over packets of other connections (PS1, PS2, PS3) (e.g., data) (without delay jitter and loss of information). Prio... | 05/15/1990 |
| 4905227 | Circuit for subscriber line interface circuits in a digital time-division multiplex communication switching center A circuit for subscriber line interface circuits in a digital time-division multiplex communication switching center is disclosed. In the case of reception of the same information on the same time slot allocation via a number of subscriber line interface ... | 02/27/1990 |
| 4899336 | Centrally controlled telecommunications exchange system In a telecommunications exchange system, consisting of a central section comprising a central switching network and a central coordination processor, and consisting of line trunk groups which are connected to the switching network via allocatable connecti... | 02/06/1990 |
| 4881223 | Asynchronous time division communication system Asynchronous time division system including at least one node with a switching network (BSN) to which a plurality of user stations (US1/N) are coupled via transmission links and which is adapted to interconnect user stations. At least one (US4) of these u... | 11/14/1989 |
| 4811332 | Apparatus and method for TDM data switching A method and apparatus are described for switching data between one or more first TDM interfaces and one or more second TDM interfaces. Data words are sequentially received from the first TDM interface and are stored in a first memory in a predetermined o... | 03/07/1989 |
| 4630259 | Lockup detection and recovery in a packet switching network A self-routing packet switching network in which packets are communicated through stages of the network in response to self-contained addresses and in which a packet is discarded if a packet cannot be transferred to a subsequent stage of the network withi... | 12/16/1986 |
| 4561090 | Integrated self-checking packet switch node A detection circuit for monitoring the operations of a packet switch node to detect the loss or erroneous creation of packets within the switch node. The switch nodes are interconnected to form a packet switching network, and switching networks are interc... | 12/24/1985 |
| 4551833 | Distributed monitoring of packet transmission delay A trunk controller and processor arrangement for measuring packet transmission delay from a first trunk controller through a packet switching network to a second trunk controller. Packets comprising logical addresses and voice/data information are receive... | 11/05/1985 |
| 4510594 | Loop-around testing facilities for a multiline protocol controller A communication method and digital multi-customer data interface for interconnecting a number of customer terminals to a main packet switching network of a local area data transport system that provides data communication services such as interactive vide... | 04/09/1985 |
| 4488288 | End-to-end information memory arrangement in a line controller A communication method and packet switching system in which packets comprising physical addresses and voice/data information are communicated through the system by packet switching networks which are interconnected by high-speed digital trunks with each o... | 12/11/1984 |
