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| Number | Title | Issue Date |
| 6560196 | Method and apparatus for controlling the transmission of cells across a network A Multiservice Access Concentrator (MAC) provides traffic shaping by allocating at least one cell stream to at least one cell slot of a cell scheduling table. A cell slot and a corresponding cell stream are designated in response to a cell interrupt signa... | 05/06/2003 |
| 6532213 | Guaranteeing data transfer delays in data packet networks using earliest deadline first packet schedulers A system is disclosed that services a plurality of queues associated with respective data connections in a packet communication network such that the system guarantees data transfer delays between the data source and the destination of each data connectio... | 03/11/2003 |
| 6526059 | Quality monitoring apparatus and method for ATM switching systems In a quality monitoring apparatus for monitoring the quality of ATM cells stored in a buffer, a programmable counter is provided for decrementing a count value in response to each cell forwarded from the buffer to define a time window of variable size. Re... | 02/25/2003 |
| 6522628 | Method and system for managing transmission resources in a wireless communication network A method and system for managing transmission resources in a wireless communications network includes receiving a packet and determining a time duration for transmission of the packet. A power level for transmission of the packet over the time duration is... | 02/18/2003 |
| 6512741 | Communication device with multi-stages of traffic shaping functions A traffic shaper which includes a cell buffer for temporarily storing an ATM cell arrived thereat, a first calculator for calculating an estimated cell sending time according to a VC contracted bandwidth, a second calculator for calculating an estimated c... | 01/28/2003 |
| 6510151 | Packet filtering in connection-based switching networks A method and apparatus are provided for using shared-media networks in a connection-based networking scheme. The method and apparatus may include filtering of packets received by a switch in the shared-media subnetwork. In-line filtering of packets is als... | 01/21/2003 |
| 6501731 | CBR/VBR traffic scheduler A CBR/VBR traffic scheduler includes multiple CBR/VBR shapers to shape traffic over a wide range of peak cell rates for multiple CBR and VBR connection. Each shaper points to one or more VCs in a link list and includes a PCR counter initialized to a first... | 12/31/2002 |
| 6498781 | Self-tuning link aggregation system A data processing system and method in a computer network are disclosed for improving performance of a link aggregation system included in the network. Parameters are established which are utilized to determine performance criteria of the link aggregation... | 12/24/2002 |
| 6483839 | Apparatus and method for scheduling multiple and simultaneous traffic in guaranteed frame rate in ATM communication system A traffic manager coupled to a communication system for scheduling transmission of information associated with a plurality of connections in the communication system. The traffic manager includes a priority queue, a connection data structure, and a schedu... | 11/19/2002 |
| 6480468 | Repeater The present invention aims at making the cut-through trigger variable in accordance with the traffic environment, thereby increasing the cut-through traffic to enhance the efficiency of communication. In the trigger filtering unit (16A), the number of tra... | 11/12/2002 |
| 6477144 | Time linked scheduling of cell-based traffic A node in a packet network such as an ATM network receives a plurality of traffic classes and outputs them to an output link. The invention relates to a technique of scheduling the traffic classes in a time linked fashion at the node based on the bandwidt... | 11/05/2002 |
| 6430153 | Trunk delay simulator A network cell is delayed by a predetermined time by injecting one or more delay cells ahead of the cell into a queue in a network (e.g., an ATM network). The queue may comprise a cell egress queue at a switch of the ATM network and the delay cells may be... | 08/06/2002 |
| 6430154 | Supporting multiple application traffic types over connection oriented networks A system and a method are disclosed for supporting multiple application traffic types over connection oriented networks. Data is received from multiple applications, for example in the form of data units, and is associated with a traffic type. The traffic... | 08/06/2002 |
| 6421319 | Network traffic monitoring system A network traffic monitoring system includes a router, a terminal adaptor, a digital service unit, a frame relay/leased network, a traffic monitoring apparatus, and a monitor. A subscriber line is connected to the router. The terminal adaptor interfaces t... | 07/16/2002 |
| 6400684 | Flow control method using a dynamic major reduction factor A flow control method for available bit rate service in an asynchronous transfer mode network for detecting congestion in a switch and conveying congestion status information using resource management cells to the source which adjusts its flow rate accord... | 06/04/2002 |
| 6381214 | Memory-efficient leaky bucket policer for traffic management of asynchronous transfer mode data communications A method and system for policing Asynchronous Transfer Mode (ATM) traffic, or for performing traffic shaping under ATM protocol, are disclosed. The disclosed system may be implemented into an ATM hub (22), ATM switches (24, 28), or in network routers (30)... | 04/30/2002 |
| 6377583 | Rate shaping in per-flow output queued routing mechanisms for unspecified bit rate service This invention provides rate shaping in per-flow output queued routing mechanisms for unspecified bit rate service.... | 04/23/2002 |
| 6349089 | Flexible scheduler in an asynchronous transfer mode (ATM) switch A flexible scheduler in an ATM switch. The scheduler enables each connection to be served fairly according to associated quality of service parameters, while enabling several other features. A connection can be shaped while minimizing additional memory an... | 02/19/2002 |
| 6222824 | Statistical call admission control Methods, systems and computer program products are provided for evaluating requests for a network connection combining the requested network connection with existing connections so as to provide a representation of the total network connections and accept... | 04/24/2001 |
| 6212189 | Arrangement for minimizing cell-delay variations in a communications system that supports multiple constant-bit-rate connections An ATM cell constructor (100) limits transmission-delay variations between successive cells of traffic of individual narrowband and wideband channels in a multi-channel environment. Whenever an ATM AAL1 layer (112) of processing completes assembling (606)... | 04/03/2001 |
| 6198723 | Asynchronous transfer mode traffic shapers The invention relates, in one embodiment, a computer-implemented method for shaping the output of cells on an output path of a data transmitting device. The data transmitting device is configured for switching the cells from a plurality of input paths to ... | 03/06/2001 |
| 6195333 | Unframed isochronous shaping method to reduce delay and delay variation in a CBR transmission system Flow shaping is executed at each ATM device in a virtual circuit formed in an ATM network. More particularly, the flow of data units through the virtual circuit is controlled at each ATM switch such that the variable transmission delay remains substantial... | 02/27/2001 |
| 6195353 | Short packet circuit emulation Transportation of low bit rate, circuit emulation data over an asynchronous transfer mode (ATM) connection is improved by packetizing the circuit emulation data into short packets in accordance with a packetization clock. The packetization clock is derive... | 02/27/2001 |
| 6172979 | CDV-reducing algorithm circuit self-monitoring system A CDV-reducing algorithm circuit self-monitoring system is operative for detecting a non-data cell contained in a cell flow and arriving at a predictable time, executing a CDV-reducing algorithm operation on the detected non-data cell using self-monitorin... | 01/09/2001 |
| 6163542 | Virtual path shaping An apparatus and a method for shaping ATM cell traffic emitted onto a virtual path connection in an ATM network are described. Component virtual channel connections are arbitrated at an aggregation point utilizing a hierarchical, multi-level arbitration t... | 12/19/2000 |
| 6157613 | Congestion control system for controlling congestion in switching cells A congestion control system appropriately controls congestion of cells independently of the configuration of source and destination terminal units in, for example, an ATM switching unit, and shortens the time taken from the generation of congestion to the... | 12/05/2000 |
| 6154459 | Data shaper for ATM traffic A method and apparatus for prioritizing ATM cells within time transmission slots is disclosed. The present invention takes cells which have been prioritized by traditional priority circuitry and adds to them information regarding the need to begin transmi... | 11/28/2000 |
| 6097701 | Data stream shaper A shaper (1) in a stream of data packets provides for compliance with the agreements about the packet traffic of each virtual connection. It contains means (11) for the intermediate storage and read-out of data packets and for extracting the packet clock,... | 08/01/2000 |
| 6097721 | Method and apparatus for identifying signals for a set of communication devices in a signal stream having signals for a number of different sets of communication devices The invention provides method and apparatus for identifying signals for a set of communication devices in a signal stream having signals for a number of different sets of communication devices. Some embodiments of the invention are methods and devices for... | 08/01/2000 |
| 6052375 | High speed internetworking traffic scaler and shaper A method and system are provided for traffic shaping and bandwidth scaling in a high speed internetworking device. A slot time wheel mechanism is provided for traffic rate control and a credit/debit mechanism is provided for traffic shaping and scaling. T... | 04/18/2000 |
| 6044060 | Traffic shaping ATM network switch An ATM network switch includes a switch fabric (14), and a plurality of slot controllers (11) coupled to the switch fabric. Each slot controller has at least one external data link (12, 13), cell receiving circuitry (21) for receiving ATM cells from the d... | 03/28/2000 |
| 6028843 | Earliest deadline first communications cell scheduler and scheduling method for transmitting earliest deadline cells first A method and apparatus are provided for scheduling the transmission of cells of a plurality of data streams in a communications network. An earliest deadline first (EDF) scheduler is provided for scheduling the transmission of cells of a plurality of data... | 02/22/2000 |
| 6009080 | ATM exchange A component device (such as an input circuit interface device, a cell multiplexing device, a cell switching device, a cell demultiplexing device or output circuit interface device) in an ATM exchange counts an inflow cell number, a passage cell number and... | 12/28/1999 |
| 6002666 | Traffic shaping apparatus with content addressable memory In traffic shaping apparatus including a plurality of cell buffers, a content addressable memory is provided to store times for addresses each designating one of the cell buffers, and a timer counter is provided to generate a time. When this time is trans... | 12/14/1999 |
| 5999515 | Method and apparatus for shaping processing in which discard of ATM cell effectively performed In a shaping processing apparatus which receives ATM cells as reception ATM cells which contains normal ATM cells and tagging ATM cells, a scheduling unit calculates a transmission time of the reception ATM cell based on a transmission time of a previous ... | 12/07/1999 |
| 5995508 | Line adapter for cell switching machine A shaper circuit is provided in a line adapter, not in an ATM switch. A billing section is provided on the output side of the shaper circuit. The shaper circuit is configured to output M cells for N cell slots at a temporally smooth rate, where M and N ar... | 11/30/1999 |
| 5974033 | Dynamic shaping apparatus of traffic of ATM network The invention provides a dynamic traffic shaping apparatus which allows dynamic shaping processing wherein the shaping cell rate is varied dynamically in response to a rate variation of a terminal acquired from a network. The dynamic traffic shaping appar... | 10/26/1999 |
| 5953334 | ATM switching system An ATM (asynchronous transfer mode) switching system is capable of performing a charging process, while suppressing a data communication amount used to acquire data required for a charging process. The ATM switching system is arranged by comprising: a cha... | 09/14/1999 |
| 5923645 | Cell rate control device and method A bottleneck path prediction/storage unit predicts a bottleneck path, that is, a logic circuit whose transmission rate is limited by a cell switching unit other than a predetermined cell switching unit, the logic circuit being one of the logic circuits wh... | 07/13/1999 |
| 5896388 | Method and apparatus using GPS to reshape isochronous data at the receiving ends of an ATM network Method and apparatus are used to reshape isochronous Constant Bit Rate (CBR) and Variable Bit Rate (VBR) data at a receiving point (such as a multimedia workstation) using precise universal real time clocks that are provided by Global Position System (GPS... | 04/20/1999 |
