36results about How to "Eliminate congestion problems" patented technology

The preferred embodiments of the present invention include an optical splitter module having connectorized pigtails that are stored on the bulkhead faceplate of the module. The module includes an optical splitter output harness, for example, a ribbon cable assembly attached to the bulkhead with rugged strain relief mechanism. The ribbon harness is converted to individual pigtails with connectors which are stored on adapter receptacles on the faceplate. Adapter receptacles used may optionally be half receptacles when storage is the only desired function or may be full receptacles when access to the pigtail ferrule tip is required. Access to the ferrule tip may be required for attaching fiber optic terminators to eliminate undesirable reflections caused by unterminated connectors. The module provides an administrative location for splitter outputs prior to being connected individually into service. The module also provides an administrative storage location for splitter outputs taken out of service as a temporary staging area before being reassigned and connected individually into service again.

A parking guidance system tracks available parking spaces and leads users to vacant spots through display boards placed at strategic locations in the parking lot. Sensor nodes are deployed at parking spaces or within traffic lanes to monitor parking space occupancy and wirelessly transmit this information. The sensor nodes form a wireless network that routes the knowledge of available spaces to the corresponding display boards and updates them in real time. Parking availability information may also be shared with users in a variety of other ways such as through the Internet, personal digital assistants, computers, mobile telephones, in-vehicle dashboards, and others.

A buffered distributor (i.e., a full-duplex repeater) having receive buffers for respective network ports calculates pause frames based on the size of stored data packets that need to be output by the repeater core according to a round robin sequence before congestion in an identified receive buffer is eliminated. The distribution core within the buffered distributor includes a linked list register that stores the determined links of received data packets for each network port. Upon detecting a congestion condition in one of the receive buffers for a corresponding port, the buffered distributor determines the relative position of the congested port within the round robin sequence, and calculates the pause interval based on the length of the data packets that need to be output before congestion is eliminated. The sum of the data packet lengths are compared to an output data rate of the distribution core, as well as switching delays within the core. The calculated pause frames, in conjunction with the prescribed congestion threshold, ensures that buffer sizes can be efficiently designed at a low cost, without compromising cost or risk of lost data packets.

This invention provides a video information transmission apparatus for efficiently transmitting a digital video such as MPEG video at real time while controlling congestion on a QoS non-guaranteed IP network and suppressing degradation of a video quality. A transmission control section 13 on a sender side outputs bit rate feedback information in accordance with congestion information on the network to a real-time encoder 12, and controls a transmission bit rate to change the transmission bit rate in accordance with congestion information on the network. The bit rate feedback information is obtained based on the congestion information on the network on the sender side, or obtained on a receiver side and fed back.

An improved memory cell architecture is provided herein for reducing, or altogether eliminating, chip-level routing congestion in System-on-Chip environments. Though only a few embodiments are provided herein, features common to the described embodiments include: the formation of bitlines in a lower-level metallization layer of the memory array, and the use of word lines and ground supply lines, both formed in inter-level metallization layer(s) of the memory array, for effective shielding of the bitlines against routing signals in the chip-level routing layer.

A repeater and method provides a technique to minimize congestion and packet loss, which may be generated when a fault is detected in a ring type packet network or when the network recovers from such a fault. A repeater having a plurality of ports for transmitting and receiving packets in a ring type network for transmitting the received packets on the basis of an address included in a received packet and a transmitting port database indicating an identifier of a port to transmit the packet having the address as the destination, comprises a control packet processing block to detect reception of a fault notifying packet transmitted from a repeater having detected a fault and a control block to update, upon reception of the fault notifying packet from an immediately adjacent repeater, a port identifier of the transmitting port database having a port identifier of the port having received said fault notifying packet into a port identifier of a port connected to another immediately adjacent repeater.

In the present invention, a service network includes, when user terminals are divided by area, subscriber accommodation nodes that accommodate the user terminals present in the respective areas and relay nodes that perform relay of information among the subscriber accommodation nodes. The congestion control system further includes an edge router that routes a processing request for a communication service received from each of the user terminals to each of the subscriber accommodation nodes on the service network side as a control message and a congestion control server that controls congestion states of the subscriber accommodation nodes and the relay nodes. The subscriber accommodation node detects, when congestion occurs or it is likely that congestion occurs in the subscriber accommodation node because of a large number of control messages from the edge router, the occurrence of the congestion or the likelihood of occurrence of congestion and notifies the congestion control server to that effect. The congestion control server transmits a congestion control message for regulation to the edge router that routes the control message to the subscriber accommodation node, in which the congestion or the likelihood of occurrence of congestion has occurred, to thereby regulate an operation for routing the control message to the subscriber accommodation node, in which the congestion or the likelihood of occurrence of congestion has occurred, from the edge router.

A system and method of reducing network congestion whereby significant improvement can be gained by the elimination of catastrophic network congestion failure within a TCP / IP network. Exemplary embodiments are implemented by an improved process for retransmitting unreceived datagram fragments by use of a bitmap. The bitmap allows for a more targeted acknowledgement system to prevent needless transmission of already received datagram fragments.

In the present invention, a service network includes, when user terminals are divided by area, subscriber accommodation nodes that accommodate the user terminals present in the respective areas and relay nodes that perform relay of information among the subscriber accommodation nodes. The congestion control system further includes an edge router that routes a processing request for a communication service received from each of the user terminals to each of the subscriber accommodation nodes on the service network side as a control message and a congestion control server that controls congestion states of the subscriber accommodation nodes and the relay nodes. The subscriber accommodation node detects, when congestion occurs or it is likely that congestion occurs in the subscriber accommodation node because of a large number of control messages from the edge router, the occurrence of the congestion or the likelihood of occurrence of congestion and notifies the congestion control server to that effect. The congestion control server transmits a congestion control message for regulation to the edge router that routes the control message to the subscriber accommodation node, in which the congestion or the likelihood of occurrence of congestion has occurred, to thereby regulate an operation for routing the control message to the subscriber accommodation node, in which the congestion or the likelihood of occurrence of congestion has occurred, from the edge router.

The invention provides a communication method for a flight simulator. The method comprises a plurality of computers connected with a network switch by adopting an ether network cable through a network card, and a central computer provided with a plurality of network cards. The central procedure executed in the central computer comprises an external configuration analysis module, a data receiving module, a data sending module, a data integration module and a data monitoring module. An external configuration file comprises a data package configuration file and a communication route configuration file. Each communication computer only sends data to the central computer and receives the data from the central computer. The communication route of data is determined by the central computer according to the external configuration file, communication decoupling between simulated programs of the computers is achieved, and the simulated programs can be reused easily; the central computer reduces communication data redundancy through data package integration, data jam is eliminated, and the communication efficiency is improved; communication between simulation nodes is simplified and standardized, and the expandability and the transportability of the system can be improved.

With the object of eliminating congestion that has occurred in a station which can not prevent or eliminate the occurrence of congestion autonomously, the SMPP response time in output interfaces 21h-21k of a first PPG 21 are measured and when the time mta, which is m-times of the SMPP response time ta in the normal state, is exceeded, congestion is assumed to occur in an interconnected station of the first PPG 21 and the response to push transfer request in an input interface 21a is delayed. Further, changes in the filling ratio in a buffer memory 21b are monitored and when the filling ratio exceeds h %, a decision is made that congestion has occurred in the first PPG 21 and the response to the push transfer request in the input interface 21a is delayed.

An xDSL (x-Digital Subscriber Line) signal is multiplexed with POTS on a twisted pair between a subscriber modem and line termination equipment in a shelf that also includes network termination equipment for connection to a broadband network. The line termination and network termination equipment are interconnected by a bus internal to the shelf for providing subscriber access. Separate lowpass filters are provided at each end of a twisted wire pair between the shelf and each subscriber equipment. A shelf can be used as a hub for connecting to a remote shelf that includes the line termination equipment for connection to subscribers.

The invention provides an AXI bus structure and a chip system. The AXI bus structure comprises: at least two main function unit groups, wherein each main function unit group comprises at least two main function units; at least two first routing units, wherein the at least two first routing units and the at least two main function unit groups are in one-to-one correspondence with the at least two first routing units, and each first routing unit is connected with each main function unit of the corresponding main function unit group through an AXI bus; at least two second routing units, wherein each second routing unit is connected with each first routing unit through an AXI bus; and at least two slave function unit groups, wherein each slave function unit group comprises at least two secondslave function units, the at least two slave function unit groups are in one-to-one correspondence with the at least two second routing units, and each second routing unit is connected with each slavefunction unit corresponding to the slave function unit group through an AXI bus.

An ECU is used to a tire pressure monitoring system of a vehicle. The ECU includes a contact storage portion and a post-replacement ID reporting section. The contact storage portion stores previously a contact of a management computer of a facility that the vehicle uses. The post-replacement ID reporting section transmits a post-replacement tire ID of a tire, which is substituted in the tire replacement, to the contact in the contact storage portion via a communication network when the tire replacement is detected by a tire replacement detection section. The management computer includes a registration change section that registers the post-replacement tire ID in a registration portion upon receiving the post-replacement tire ID.

A server device includes a determination unit and a control unit. The determination unit determines the degree of congestion of a communication network on the basis of a difference between the time difference, between the transmission time and the reception time of sensor data transmitted from a gateway device to the server device, and the communication period of time taken in a state where congestion does not occur. The control unit determines a sensor device from which sensor data is collected and a sensor device in which collection of sensor data is withheld on the basis of the determination result of the degree of congestion of the communication network, and sends an instruction including the determined content to the gateway device.

The invention provides a chip wiring method, comprising: obtaining the congested area of ​​wiring congestion on the chip by laying out and wiring the chip; obtaining multiple standard units in the congested area; Adjusting the position of the unit can improve the wiring efficiency of the chip while eliminating wiring congestion.

A horizontal Young's modulus measurer can measure Young's modulus of steel wire conveniently by applying horizontal drawing method and utilizing the reading microscope. The present invention decreases two moduluses to be tested, so measurement and calculation are simplified and system error of measurement can be decreased.

With the object of eliminating congestion that has occurred in a station which can not prevent or eliminate the occurrence of congestion autonomously, the SMPP response time in output interfaces 21h-21k of a first PPG 21 are measured and when the time mta, which is m-times of the SMPP response time ta in the normal state, is exceeded, congestion is assumed to occur in an interconnected station of the first PPG 21 and the response to push transfer request in an input interface 21a is delayed. Further, changes in the filling ratio in a buffer memory 21b are monitored and when the filling ratio exceeds h %, a decision is made that congestion has occurred in the first PPG 21 and the response to the push transfer request in the input interface 21a is delayed.