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| Number | Title | Issue Date |
| 5566171 | Multi-mode high speed network switch for node-to-node communication The present invention provides a an improvement in circuit switching for a network comprising a switching apparatus having a plurality of transceivers for interfacing directly with a like plurality of user nodes. Each of the transceivers having a receive ... | 10/15/1996 |
| 5566169 | Data communication network with transfer port, cascade port and/or frame synchronizing signal A data communication system, such as a local area network, is provided with a capability of transmitting isochronous data. Preferably the system conveys both isochronous data and non-isochronous data by time-multiplexing the data into a recurring frame st... | 10/15/1996 |
| 5563876 | Fast packet switch The invention provides a very fast distributed frame relay switch. Each switching element is tied to each other switching element using LAN like FDDI technology. Frame relay packets arrive into the switch via lower speed TDM based trunks and can either be... | 10/08/1996 |
| 5561669 | Computer network switching system with expandable number of ports A switching fabric circuit that provides on-the-fly switching of packets, an expandable number of ports, and the interconnection of heterogeneous LAN segments. The switching fabric circuit includes a switching link that comprises a switching bus and a plu... | 10/01/1996 |
| 5555243 | Self routing exchange and exchange system A self-routing exchange which includes switch modules connected in multiple stages. A synchronous transfer mode (STM) circuit switch module, which is capable of changing over a connection relationship between incoming highways and outgoing highways, is pr... | 09/10/1996 |
| 5546382 | Communication method and communications control apparatus in circuit switching network A communication control unit connecting a terminal and a network temporarily disconnects a circuit of the network without ending a session, when no data is received from the network or when no data is transmitted to the network. In response to an occurren... | 08/13/1996 |
| 5544163 | Expandable telecommunications system An open, high speed, high bandwidth digital communication network for connecting multiple programmable telecommunications switches to form a large capacity, non-blocking switching system. Each network switching node includes circuitry for transmitting and... | 08/06/1996 |
| 5544164 | Method and cell based wide area network alternative access telephone and data system The present invention is a Wide Area Network (WAN) Asynchronous Transfer Mode (ATM) compliant cell based communications system that is capable of delivering high data rate cells from a plurality of terminal devices to support a multiplicity of simultaneou... | 08/06/1996 |
| 5541917 | Video and TELCO network control functionality To efficiently provide a variety of different services, e.g. voice grade telephony, packet data services, and broadband services, through an integrated network, at least some routing functions relating to all of the different types of services are control... | 07/30/1996 |
| 5539739 | Asynchronous interface between parallel processor nodes An asynchronous interface enabling a processor node operating at a first clocking frequency to transfer and receive information from a communications network operating at a second clocking frequency. The asynchronous interface comprises an input synchroni... | 07/23/1996 |
| 5537403 | Terabit per second packet switch having distributed out-of-band control of circuit and packet switching communications A telecommunications switch which has a central switch fabric made up of multiple crossbars that can be used to switch either circuit switched or packet switch communications as long as appropriate input and output interfaces and controllers are provided.... | 07/16/1996 |
| 5533018 | Multi-protocol packet framing over an isochronous network An integrated circuit has an isochronous network port for receiving isochronous information from an isochronous network. To allow the integrated circuit to receive information packaged in accordance with two different packaging protocols (for example, HDL... | 07/02/1996 |
| 5533019 | Packet data in an analog cellular radiotelephone system A method and apparatus for circuit-switched and single-user traffic channel packet data communication in a cellular radiotelephone system, including a base station and mobile data unit both operable for establishing either a circuit-switched data call con... | 07/02/1996 |
| 5528664 | Cellular data overlay system providing packet-switched communication data service over a selected channel which is not in use by a circuit-switched communication subsystem A cellular telephone system includes a packet-switched digital data communication subsystem overlaying a circuit-switched (e.g., voice) communication subsystem, with voice and data services sharing the same voice channels. The voice communication subsyste... | 06/18/1996 |
| 5528671 | Network control system In a network control system connecting terminal units providing at least a chat function to make communication with the other terminal units on a real time basis while connecting the keyboard and executing mutual communication between the terminal units, ... | 06/18/1996 |
| 5521914 | Switched access to frame relay An arrangement is disclosed for providing switched access to a packet-based network. The arrangement comprises an ISDN switch connected to terminal units via ISDN links, a frame relay switch, and a TDM trunk connecting the frame relay switch to the ISDN s... | 05/28/1996 |
| 5519695 | Switch element for fiber channel networks A system for facilitating data communications in a fiber channel network is presented. The system comprises a fiber optic switch element which enables implementation of a Fiber Channel network by permitting selective interconnection of a plurality of fibe... | 05/21/1996 |
| 5513180 | Television signal and ATM cell switching system A television signal and ATM cell switching system for switching ATM cells of data other than television signals and for supplying one channel among a plurality of channels of television signals transmitted from a source to a subscriber to carry out one-wa... | 04/30/1996 |
| 5502723 | Method for assigning cell slots to one or more communication channels by mapping the channels to cell slots based on a one-to-one transformation The method of the present invention achieves a desired assignment of the physical cell slots comprising a time division multiplexed frame to embedded channels by ascribing an element address to uniquely identify each of the cell slots of the frame. A logi... | 03/26/1996 |
| 5497370 | Network system A network system includes a transmission line including a plurality of transmission channels, a plurality of transmission equipment connected to the transmission line to effect the transmission and reception of information between each other, and a plural... | 03/05/1996 |
| 5490140 | System and method for providing ATM support for frame relay DTEs with a terminal adapter The system and method of the present invention provide a seamless approach for providing ATM connectivity for a Frame Relay DTE using an intelligent Terminal Adapter (TA). Using the system and method of the present invention, an enhanced Frame Relay proto... | 02/06/1996 |
| 5490141 | System and method for providing SVC service through an ATM network for frame relay DTEs with a terminal adapter The system and method of the present invention provide a seamless approach for providing ATM connectivity for a Frame Relay DTE using an intelligent Terminal Adapter (TA). Using the system and method of the present invention, an enhanced Frame Relay proto... | 02/06/1996 |
| 5485457 | Packet switching system capable of reducing a delay time for each packet In a packet switching system having input ports (20-1-1 to 20-8-8) supplied with input packets and output ports (21-1-1 to 21-8-8) producing output packets, each of time stampers (22-1-1 to 22-8-8) connected to the input ports assigns a time stamp to the ... | 01/16/1996 |
| 5471465 | Exchange having overdimensioned digital switching network An exchange having a digital switching network and peripheral units connected thereto, the peripheral units serving to interface with subscribers, other exchanges, or maintenance devices or to perform other functions, and the switching network serving to ... | 11/28/1995 |
| 5457684 | Delay-less signal processing arrangement for use in an ATM network An ATM cell carrying a voice-band signal originating in an STM network is processed in accordance with a particular signal processing function in an ATM mode at an ATM data rate without incurring a delay penalty that arises.... | 10/10/1995 |
| 5450398 | Method of distinguishing in serial digital bit streams between at least two types of time slots in a bit stream receiver A method for distincting between at least two types of time slots in serial digital bit streams that are transmitted over a link between a transmitter and a receiver and that derive from the streams of parallel data bits which are delivered to the transmi... | 09/12/1995 |
| 5450411 | Network interface for multiplexing and demultiplexing isochronous and bursty data streams in ATM networks An asynchronous transfer mode network interface is provided to multiplex isochronous and bursty data traffic over a single logical connection. Isochronous data is received by the network interface and stored in a buffer for subsequent multiplexing with bu... | 09/12/1995 |
| 5440554 | Broadband private automatic branch exchange A broadband private automatic branch exchange is to be implemented in which all broadband user stations can be switched like normal telephone terminals with all features of a conventional telephone private automatic branch exchange and without each broadb... | 08/08/1995 |
| 5440541 | System and method for establishing communications between subscribers based on personal number assigned to each subscriber The present invention aims at realizing a real-time call process by performing a timesaving operation in retrieving personal information in a personal communications system for establishing communications based on a unique personal number assigned to each... | 08/08/1995 |
| 5440563 | Service circuit allocation in large networks An arrangement for pooling service circuits so that they become available to a plurality of switching systems in a telecommunications network. A regional control node receives a request for a service circuit to be connected to a call. The regional control... | 08/08/1995 |
| 5438565 | Packet switch to provide code division, multiple access cellular service A system for relaying CDMA packetized data from a cell site or sites to a destination speech processor. The CDMA packetized data, is received at the cell site and is sent in its packetized form along with a destination address to a packet switch. A packet... | 08/01/1995 |
| 5436890 | Integrated multi-rate cross-connect system An integrated multi-rate cross-connect system (10) includes a broadband subsystem (14) for processing optical and electrical telecommunication network signals. A wideband subsystem (16) processes wideband level electrical telecommunication signals from th... | 07/25/1995 |
| 5436898 | Multi-media network bus A multi-media network bus (MMN-Bus) and Controller (MMNC) serve as a distribution medium between a single high-speed network and multiple user network interfaces (UNIs). The MMNC allocates multiple isochronous channels and packet channels for distribution... | 07/25/1995 |
| 5428607 | Intra-switch communications in narrow band ATM networks Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice co... | 06/27/1995 |
| 5428609 | STM-to-ATM converters A data stream is converted from a synchronous transfer mode (STM) to an asynchronous transfer mode (ATM) by extracting data of a number of payload signals from the data stream, writing data of the payload signal into a random access memory (RAM), separate... | 06/27/1995 |
| 5428608 | Call connection technique In an environment in which simultaneous voice/data (SVD) modems are provisioned in the public switched network for separating and separately routing voice and data calls from users having SVD modems, at least one user who is already employing a first conn... | 06/27/1995 |
| 5426636 | ATM distribution networks for narrow band communications Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice co... | 06/20/1995 |
| 5422882 | ATM networks for narrow band communications Pulse Code Modulation (PCM) signal streams are converted into Asynchronous Transfer Mode (ATM) cells for switching and transmission across a telecommunications network. Each cell carries one PCM sample of up to 48 different voice connections, the voice co... | 06/06/1995 |
| 5423003 | System for managing network computer applications A system for managing distributed information system applications employs an Advanced Intelligent Network (AIN) telecommunications network based upon the industry standard, Signalling System 7 (SS7). SS7 employs intelligent, computer based service control... | 06/06/1995 |
| 5422880 | Broadband switching fabric in a communication controller A method and apparatus for exchanging communication cells in a communication controller, wherein an arbiter determines transmission requests for each of a plurality of communication modules in the communication controller. Each communication module has a ... | 06/06/1995 |
