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6490250 |
Elementary stream multiplexer
An integrated multimedia encoding system is disclosed. Multimedia encoders which are capable of adjusting bit rates receive multimedia data to compress the data. After compressing the data, the...
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6490298 |
Apparatus and methods of multiplexing data to a communication channel
Apparatus and methods for multiplexing data received from a plurality of sources to a communication channel. Each of the sources is assigned to one of at least two scheduling layers based in part...
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6477143 |
Method and apparatus for packet network congestion avoidance and control
There is provided a method for congestion control and avoidance in computer networks, which method includes the steps of sensing network congestion (including both sensing and predicting possible...
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6473400 |
Computation of traffic flow by scaling sample packet data
A method of computing statistics relating to the flow of data by way of a packet-switched data transmission system wherein a packet includes path address data and network address data, and the...
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6469984 |
Method and system for monitoring traffic on a code division multiple access repeater
The system monitors traffic on a CDMA repeater. The system receives a metric related to the operation of the CDMA repeater and automatically determines the amount of call traffic on the CDMA...
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6466545 |
Apparatus and method for transmission rate control
An RM cell extractor extracts an RM cell, and outputs the RM cell to the CPU. The CPU computes a transmission-rate control parameter (for example, ICR) using the PCR, etc. set in the RM cell, and...
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6466541 |
Cell pacing on a network link employing a rate-based flow control protocol with underlying credit-based flow control mechanisms
A network device operates to control the clumping of cells on a connection using a rate-based flow-control protocol. In each of successive intervals, a number N is calculated representing the...
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6463035 |
Method and apparatus for initiating an upward signaling control channel in a fast packet network
Router apparatus for initiating a control channel within a protocol stack comprises a receiving protocol stack, a controller and an operating system. The controller is programmed to respond to...
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6463031 |
Rate determination technique that utilizes modified cumulative metrics to orthogonalize the rates
A method and apparatus, such as a radiotelephone, operates so as to (a) decode a signal received from a communications channel to extract data therefrom, the data being received at one of n rates...
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6456592 |
Method and apparatus for a simple explicit rate indication algorithm (SERIA)
An apparatus for switching cells from entities in a network. The apparatus includes an input mechanism for receiving all cells by the apparatus from the network. The apparatus includes a memory...
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6453351 |
Traffic control method and network control system
A traffic control method and apparatus for simplifying declaration of a traffic parameter and improving the utilization rate of a network having a plurality of nodes. Each of the nodes monitors a...
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6449253 |
Method and system for dynamic allocation of bandwidth in asynchronous transfer mode (ATM) switching systems
A method and system for dynamically adjusting the total bandwidth that an asynchronous transfer mode (ATM) switching system can make available to Available Bit Rate (ABR) virtual circuits comprise...
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6449252 |
ATM path cell scheduling for constant and variable bit rate traffic
A system schedules both CBR and non-CBR traffic on one or more virtual paths in accordance with associated aggregate peak cell rates by including in a stream of data cells strategically placed...
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6445707 |
Broadcast rate control allocation (BRCA) for congestion avoidance in satellite ATM networks
A congestion avoidance scheme for ABR services in an ATM satellite system is described. The scheme relies on the broadcast nature of a satellite system to control the rates at which user terminals...
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6445679 |
Stream communication system and stream transfer control method
A stream communication system has a plurality of nodes and a network to which each node is connected, the node comprises a stream transfer device to which the encoding stream that data attribute...
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6442137 |
Apparatus and method in a network switch for swapping memory access slots between gigabit port and expansion port
A network switch having switch ports for full-duplex communication of data packets with respective network nodes according to Ethernet (IEEE 802.3) protocol that allocates a prescribed number of...
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6442138 |
Method and apparatus for controlling admission of connection requests
A system controls the admission of a connection request based on available resources. The received connection request specifies a particular class of service. The system then determines the...
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6438106 |
Inter-class schedulers utilizing statistical priority guaranteed queuing and generic cell-rate algorithm priority guaranteed queuing
Inter-class schedulers for digital link systems provide high efficiency utilization of limited bandwidth by employing queuing techniques referred to as Statistical Priority Guarantee Queuing (SPGQ)...
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6438138 |
Buffer controller incorporated in asynchronous transfer mode network for changing transmission cell rate depending on duration of congestion and method for controlling thereof
An asynchronous transfer mode network has a controller for a buffer where asynchronous transfer mode cells successively enter into a queue formed therein, and the controller determines a degree of...
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6430155 |
Congestion avoidance on communications networks
An interface ( 12, 14 , or 16 ) in a service-provider network's transit label-switching router (P 2 ) employs resource-management messages to inform neighbor routers of the bandwidths that it can...
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6430156 |
Traffic control method for providing predictive guaranteed service
A traffic control method for providing a guaranteed/predictive service which can guarantee a quality of service QOS by controlling transmission routes of various traffic data with a policing...
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6424620 |
Congestion control system capable of detecting congestion occurring in an asynchronous transfer mode network and autonomously avoiding the congestion
A congestion control system comprises an average flowing speed measuring unit for measuring average flowing speed of a transfer packet, a congestion detecting unit for detecting congestion caused...
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6415363 |
Memory statistics counter and method for counting the number of accesses to a portion of memory
A memory statistic counter and method for counting the number of accesses (writes or reads) by a microprocessor ( 10 ) to at least a portion of a memory comprising a decoding logic unit ( 16 ) for...
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6411602 |
Method and apparatus for detecting and preventing bandwidth overflow in a statistical multiplexer
Techniques for determining an output rate for a bit stream, the output rate being determined by applying information read from the bit stream to available bandwidths. The techniques are employed to...
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6404777 |
Network system, band management apparatus, transmitting apparatus, network transmitting method, band management method, and transmitting method
A network system includes at least one transmitting apparatus connected to a network for outputting packets containing data to the network and at least one receiving apparatus connected to the...
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6400685 |
Heterogenous traffic connection admission control system for ATM networks and a method thereof
A heterogeneous traffic Connection Admission Control system in Asynchronous Transfer Mode (ATM) networks and a method therefor, dynamically controls a system capacity to a delay demand bound of a...
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6400686 |
Method and apparatus for network flow control
A data transfer flow control system for a packet communications system includes a plurality of nodes interconnected by transmission links. The rate at which a sender node transmits information to a...
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6388992 |
Flow control technique for traffic in a high speed packet switching network
A flow control mechanism for use in a high speed packet switching network where calls are multiplexed on network trunks with each connection using a reserved amount of the total bandwidth. Data...
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6381649 |
Data flow monitoring at a network node using periodically incremented counters for comparison to predetermined data flow thresholds
An apparatus and method for monitoring data flow at a node on a network are disclosed. A memory location or “bucket” is allocated to each of a plurality of links and classes of service at the...
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6377550 |
Nested measurement period switch algorithm for flow control of available bit rate ATM communications
An Asynchronous Transfer Mode (ATM) switch ( 8 ) and method of operating the same to allocate Available Bit Rate (ABR) communications therethrough. The switch receives resource management (RM)...
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6377547 |
Quality of service-oriented cell disc discarding
In a node that receives cells for many connections, a method selects cells for discarding when the node's buffer is full. The connection from which a cell is discarded is chosen based on the...
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6373818 |
Method and apparatus for adapting window based data link to rate base link for high speed flow control
A system and method for converting a window based data link flow control to a rate based flow control. In addition to the conventional data link control window, a second window is established under...
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6370117 |
Channel allocation methods in a communication network and corresponding system
The invention relates to a resource allocation method and system making use of a dynamically controlled boundary policy to satisfy the quality of service parameters guaranteed by the system for two...
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6370116 |
Tolerant CIR monitoring and policing
A modification to the “leaky bucket” algorithm provides fair treatment of Frame Relay packets of varying length. The previously known leaky bucket scheme requires that there be sufficient...
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6360076 |
Method of broadcasting a quality over-the-air multicast
A method in a radio telecommunications network of broadcasting data in an over-the-air multicast to a group of mobile terminals. Statistics from regular point-to-point cellular transmissions to...
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6359877 |
Method and apparatus for minimizing overhead in a communication system
A method and apparatus are provided for minimizing overhead in packet re-transmission in a communication system. Each packet is given a sequence number, based on a current transmission rate, the...
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6359863 |
Rate allocation system and method for ATM switched networks
A method for rate allocation within the individual switches of a communication network implementing a rate-based congestion control approach for best-effort traffic. The method enables a guaranteed...
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6359862 |
ATM network available bit rate (ABR) explicit rate flow control system
A method of flow control for Available Bit Rate (ABR) sources in an Asynchronous Transfer Mode (ATM) network is implemented. An effective rate for the source is determined by an ATM switch based on...
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6351453 |
Internet service provider (ISP) finder
Specialized telecom network users who burden the network, such as Internet Service Providers (ISPs), are identified by analysis of network traffic data to identify addresses (e.g. telephone...
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6345040 |
Scalable scheduled cell switch and method for switching
A telecommunications switch. The switch includes a first output port mechanism through which sessions having cells are sent at a total session rate to a network. The switch includes a first input...
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6345039 |
Device and method for controlling ATM traffic
In an asynchronous transfer mode (ATM) communications apparatus and method, the number of sound cells arriving from sound terminals via a sound traffic ATM line terminating unit is monitored, a...
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6337851 |
Method and apparatus for relative error scheduling in a communications network using discrete rates and proportional rate scaling
A method of scheduling a plurality of data flows in a shared resource in a computer system, each of the data flows containing a plurality of data cells including the steps of providing a scheduler...
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6331986 |
Method for resource allocation and routing in multi-service virtual private networks
We describe a method for solving the joint problem of optimal routing and optimal bandwidth allocation in a network that supports plural subnetworks and plural communication services. Our method...
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6330222 |
Traffic control apparatus and traffic control method used in exchange
A traffic control apparatus in an exchange, comprised of an incoming cell analyzing means for identifying if incoming cells are fixed band cells or variable band cells, separating the two, and...
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6330226 |
TCP admission control
Congestion at a network node can be aggravated by having too many TCP connections. A simple method of avoiding the bad effects of too many TCP connections is to limit the number of connections....
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6330227 |
Cell output control apparatus and method
The cell output control apparatus includes a cell time slot allotment circuit for allotting, cells to be transmitted, to cell time slots with the cell transmission intervals changed, a first holder...
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6327246 |
Controlled available bit rate service in an ATM switch
An ATM switch (10) has a plurality of link controllers (12) each having a FIFO (30) for each VC established, a FIFO (32) for each priority level, and a traffic shaping FIFO (34) for pointers to ABR...
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6327247 |
Method and device to characterize cell traffic
To characterize cell traffic of a connection at a predefined point in a cell based communications network, an empirical envelope is measured by determining a maximum number of cells of this...
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6324165 |
Large capacity, multiclass core ATM switch architecture
A large capacity ATM core switch architecture is disclosed, which supports multiple traffic classes and quality-of-service (QoS) guarantees. The switch supports both real-time traffic classes with...
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6310857 |
Method and apparatus for smoothing and multiplexing video data flows
A method and apparatus provide a smoothing and rate adaptation algorithm to facilitate the flow of video data, maintaining video quality while avoiding potentially harmful buffering delays. The...
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