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| Number | Title | Issue Date |
| 5278830 | Data packet communication system in which data packet transmittal is prioritized with queues having respective assigned priorities and frequency weighted counting of queue wait time A packet communication system in accordance with the present invention wherein, when the system receives packets each made up of a predetermined unit data from a plurality of terminals, these packets are arranged to once form a packet queue, the packets i... | 01/11/1994 |
| 5272696 | ATM plane merging filter for ATM switches and the method thereof Many telecommunication switches operate in dual plane mode for better reliability and maintainability. For ATM switches, it has been difficult to merge cells emerging from two identical planes because of the non-synchronous nature of transmission. An ATM ... | 12/21/1993 |
| 5268900 | Device and method for implementing queueing disciplines at high speeds A device (800) and method (900) are included for providing a high-rate queueing discipline in an information network system having a plurality of traffic classes. The high-rate queueing discipline is based on a scan table-based dequeueing scheme having a ... | 12/07/1993 |
| 5233603 | Packet switch suitable for integrated circuit implementation A packet switch for high-speed synchronous multiplexing of voice and picture communications collectively. The packet switch uses among other things an input multiplexer, and output demultiplexer, and a single buffer memory divided into memory areas connec... | 08/03/1993 |
| 5231633 | Method for prioritizing, selectively discarding, and multiplexing differing traffic type fast packets A queueing and dequeueing mechanism for use in an integrated fast packet network, wherein fast packets from differing traffic types are multiplexed with one another through use of a weighted round-robin bandwidth allocation mechanism (517). Fast packets w... | 07/27/1993 |
| 5226041 | Method for efficiently simulating the dynamic behavior of a data communications network An efficient method is described for predicting the performance of a data communications network operating under a window-based protocol. A state characterizing the dynamic behavior of the data communications network for consecutive operating cycles is co... | 07/06/1993 |
| 5224099 | Circuitry and method for fair queuing and servicing cell traffic using hopcounts and traffic classes A method of fair queuing and servicing cell traffic in a telecommunication node which interfaces with a telecommunication system including a multiplicity of nodes is described. The steps include placing cells of traffic are placed in a queue according to ... | 06/29/1993 |
| 5218602 | Interprocessor switching network A digital switching network for providing simultaneous connections among user processors of processor-based communications equipment. The user processors act as originators and destinations of data communications packets. Packet data connections are throu... | 06/08/1993 |
| 5214639 | Communication switching element and method for transmitting variable length cells The switching element is used for transferring, between X inputs (I1-IX) and Y outputs (O1-OY), cells divided into subcells of which only the first contains information about the destination output(s) of the cell. This switching element includes: a buffer... | 05/25/1993 |
| 5208810 | Method of data flow control Data flow control is achieved by use of variable length flags delimiting information packets whereby longer flags result in less information flow and shorter flags result in greater information flow. A single channel carries message data as well as status... | 05/04/1993 |
| 5197127 | Expert system method for performing window protocol-based data flow analysis within a data communication network An expert system method is disclosed for analyzing window protocol-based data flows in a data communications network. The method includes the use of a data flow efficiency state variable S which is a binary number having at least three bits which reflect ... | 03/23/1993 |
| 5189672 | Device for regulating the throughput of virtual circuits on an asynchronous time-division multiplex transmission channel A device for regulating the throughput of virtual circuits carried by an asynchronous time-division multiplex transmission channel in which the incoming cells of an input asynchronous time-division multiplex channel (mtr) including a header containing a d... | 02/23/1993 |
| 5179557 | Data packet communication system in which data packet transmittal is prioritized with queues having respective assigned priorities and frequency weighted counting of queue wait time A packet communication system in accordance with the present invention wherein, when the system receives packets each made up of a predetermined until data from a plurality of terminals, these packets are arranged to once form a packet queue, the packets ... | 01/12/1993 |
| 5179558 | Routing apparatus and method for high-speed mesh connected local area network A packet routing apparatus allows numerous packets to be routed simultaneously through a mesh connected network. The network consists of a number of interconnected switches which are coupled, in turn, to the hosts that are members of the local network. Th... | 01/12/1993 |
| 5175818 | Communication interface for independently generating frame information that is subsequently stored in host memory and sent out to transmitting fifo by dma A communication system including a communication control unit connected through a communication line to a different system, a high-ranking processor for control of the communication control unit, and a common memory used for transfer of data between the h... | 12/29/1992 |
| 5170391 | Fault detection and bandwidth monitoring means for a packet switching arrangement The fault detection and bandwidth monitoring arrangement provides a counter in association with each virtual circuit crosspoint. The counters may be provided with a common or individual threshold value which when exceeded causes alarm signals to be genera... | 12/08/1992 |
| 5166894 | Method and apparatus for cell loss rate estimation, call admission control, and buffer/link capacity designing in integrated network A method and an apparatus for the cell loss rate estimation in an integrated network, capable of highly accurate estimation which is not too small compared with the actual cell loss rate. In the apparatus, inputting probability density functions of number... | 11/24/1992 |
| 5166932 | Wireless facsimile computer slate A radio paging network transmits non-paging data, such as facsimile images, to lap top computer receivers by formatting the data into a series of packets and interleaving these packets, on a space available basis, into the paging signal.... | 11/24/1992 |
| 5165021 | Transmit queue with loadsheding An apparatus for managing transfer of a packet of information to one of a plurality of ports with each the port having an associated port speed includes a double linked list transmit queue and a plurality of port queues corresponding to the plurality of p... | 11/17/1992 |
| 5150358 | Serving constant bit rate traffic in a broadband data switch This invention relates to a method and apparatus for transmitting constant and variable bit rate traffic in a broadband ISDN switch. Data from constant bit rate sources such as television cameras is entered into a group of queues. Each member of the group... | 09/22/1992 |
| 5140584 | Packet communication system and method of controlling same A packet communication system which communicates various communication information such as voice, data or images in the form of a packet and which provides a transmission quality which satisfies both of high instantaneousness and low discard properties an... | 08/18/1992 |
| 5136582 | Memory management system and method for network controller Transmit and receive data are stored in buffer regions defined in first and second memories of a system residing on a network. The buffer regions are pointed to by multiple descriptor rings that are also stored in the memories. In accordance with one aspe... | 08/04/1992 |
| 5121383 | Duration limited statistical multiplexing in packet networks A method and associated node structure (11) for the efficient and reliable transmission of delay sensitive traffic in a packet network (10) is disclosed. The method provides bounded end-to-end delay for all delay sensitive traffic and can guarantee loss-f... | 06/09/1992 |
| 5083269 | Buffer device suitable for asynchronous transfer mode communication A buffer device capable of dealing with multiple priority levels in which the efficiency of the memory capacity utilization can be improved such that the priority levels can be handled at the higher efficiency with smaller memory capacities, and which is ... | 01/21/1992 |
| 5063562 | Flow control for high speed networks A method and apparatus for dynamically adjusting the window size in a session between a sender and a receiver over a link of a packet transmission network. This invention discloses a dynamic window adjustment scheme to determine the optimum window size wi... | 11/05/1991 |
| 5051742 | Queueing protocol A method of transmitting data on a communications network having two oppositely directed unidirectional buses (A,B) and a number of access units (4) coupled between buses, the method including the step of establishing a queue which is distributed in the a... | 09/24/1991 |
| 5050161 | Congestion management based on multiple framing strategy A congestion control strategy for a packet network comprises an admission policy which controls the admission of packets into the network and a stop-and-go queuing strategy at the network nodes. The congestion control strategy utilizes multiple frame size... | 09/17/1991 |
| 5048013 | Transmission congestion control method and apparatus A congestion control method and apparatus for use with a communications link comprising a plurality of N channels. A plurality of at most N-1 queues are sequentially polled, and data is output therefrom to the communications link, thereby leaving at least... | 09/10/1991 |
| 5043981 | Method of and system for transferring multiple priority queues into multiple logical FIFOs using a single physical FIFO An FDDI system and method for transmitting to an optical medium, upon receipt of token, frames of synchronous data and frames of asynchronous data having different levels of priority. The network on which the FDDI is implemented includes a plurality of pr... | 08/27/1991 |
| 4993018 | Self-routing switching system with multiple link connections between incoming and outgoing lines A self-routing switching system including a route setting unit (10) which receives transmission information and identification information given from incoming lines and forms, from the identification information, control information for setting a path to ... | 02/12/1991 |
| 4956839 | ATM switching system In the ATM switching system, an ATM speech path is divided into a plurality of functional blocks. A routing function for distributing cells (packets) each of a fixed length to addresses outgoing lines and a logical multiplexing function are imparted to a ... | 09/11/1990 |
| 4942569 | Congestion control method for packet switching apparatus One technique of a congestion control method for packet switching apparatuses, in which a plurality of priority data indicative of different demands, such as a first priority data indicative of immediateness priority and a second priority data indicative ... | 07/17/1990 |
| 4937814 | Junction switch for packet switching The invention relates to a switching module for asynchronous time multiplex comprising at least one junction switch for transmitting packet-switched information from one bus (14) to another bus (16). The junction switch comprises a translation memory (9) ... | 06/26/1990 |
| 4922244 | Queueing protocol A method of transmitting data on a communications network having two oppositely directed unidirectional buses (A,B) and a number of access units (4) coupled between buses, the method including the step of establishing a queue which is distributed in the a... | 05/01/1990 |
| 4918687 | Digital packet switching networks In a packet switching network, voice packets are made to include an EC field whose contents indicates whether the corresponding packet is eligible for clipping if required in a node queue within the network. Should clipping of a non eligible packet be req... | 04/17/1990 |
| 4914650 | Bandwidth allocation and congestion control scheme for an integrated voice and data network An integrated voice and data network includes a multiplexer arranged with a voice queue for storing voice packets and a data queue for storing data packets. Voice packets are transmitted for a predetermined interval T1. Data packets are transmitted for a ... | 04/03/1990 |
| 4905232 | Peripheral repeater box In a system which includes a data transmitting device, a repeater, and a data receiving device, the repeater accumulating input data in packets from the transmitting device and retransmitting it to the receiving device, a memory structure for the data whi... | 02/27/1990 |
| 4878218 | Data transmission method and data transmission system free from local traffic jam A data transmission system capable of eliminating a local traffic jam comprises a plurality of packet controllers each including a queue buffer for storing packets, the packet controllers being arranged in one-to-one correspondence with channels of a mult... | 10/31/1989 |
| 4862454 | Switching method for multistage interconnection networks with hot spot traffic A method of switching data packets through a multistage interconnection network (MIN), to prevent hot spot traffic from degrading uniform traffic performance. Each of the address bits in each packet determine the output link at each particular stage of th... | 08/29/1989 |
| 4757529 | Call distribution arrangement In a telecommunication switching system, incoming calls of various call types directed to a group of associated subscriber terminals are queued by call type and distributed on a priority basis. A separate queue is created for each call type and a table is... | 07/12/1988 |
