Patent application number | Description | Published |
20080232390 | PATH MULTIPLEXING COMMUNICATION SYSTEM, COMMUNICATION NODE, AND COMMUNICATION METHOD - A communication system including first, second, and third nodes interconnected via interconnect links, a primary path composed of an interconnect link between the first node and the third node, and a secondary path composed of an interconnect link between the first and second nodes and an interconnect link between the second and third nodes, wherein | 09-25-2008 |
20090059958 | COMMUNICATION METHOD, COMMUNICATION SYSTEM, NODES AND PROGRAM - The task of the present invention is to reduce a load caused by a transmission of control information related to data packets and enhance a communication efficiency. | 03-05-2009 |
20090190493 | Speed calculation system - In the prior art, in a case of measuring a speed of a narrow-bandwidth path of which the state fluctuates dynamically, a serious influence is placed upon a speed calculation with a sufficient precision, and a performance. | 07-30-2009 |
20100046520 | PACKET RECOVERY METHOD, COMMUNICATION SYSTEM, INFORMATION PROCESSING DEVICE, AND PROGRAM - A packet recovery method of the present invention is a packet recovery method upon loss of a plurality of packets transmitted from a first node | 02-25-2010 |
20100165863 | LINK BAND ESTIMATING APPARATUS AND LINK BAND ESTIMATING METHOD - A link band estimating apparatus includes packet transmitting means for transmitting a plurality of packets in succession via a route portion of a plurality of communication routes which share a link to be measured, packet interval measuring means for measuring an interval by which the packets are spaced apart in another route portion of the communication routes, and band calculating means for calculating the band of the link to be measured based on a value measured by the packet interval measuring means and a data size of the packets. | 07-01-2010 |
20100169520 | INFORMATION PROCESSOR - An information processor (program processing unit | 07-01-2010 |
20100172243 | COMMUNICATION METHOD, NODE, AND CONTROL PROGRAM - A scheduled transmission path of each packet to be transmitted is so determined that the order of predicted arrival time at a reception node is equal to the order of arrival time at a transmission node from estimate values of delay and velocity of each path. Only a packet predicted to arrive within the maximum permissible delay of each path is transmitted among the packets. This enables both of optimum allocation of the load between the paths and the prevention of a delay increase due to multiplexing. | 07-08-2010 |
20100189112 | COMMUNICATION SYSTEM, COMMUNICATION NODE, AND PACKET SCHEDULING METHOD - Provided is a communication system in which a transmission path between communication nodes is multiplexed. A communication node transmitting packets decides the order of the packets to be transmitted through each transmission path on the assumption that an event that causes a state change to the transmission path occurs upon the start of the packet transmission, such that the packet reception order is not reversed at a communication node that receives the packets. | 07-29-2010 |
20110022881 | DISTRIBUTED RESOURCE MANAGING SYSTEM, DISTRIBUTED RESOURCE MANAGING METHOD, AND DISTRIBUTED RESOURCE MANAGING PROGRAM - A distributed resource managing system has one or more resource managing processes corresponding to each of predefined events that change the states of resources, on a communication network where each of a plurality of tasks can use a plurality of resources. Each of the one or more resource managing processes includes an assignor which, when it receives a request to protect any specific task against the event that changes states of resources to which its own process corresponds, assigns backup resources including a resource already selected by another resource managing process to the task in such a way that all tasks requested to be protected which use the resource can be protected from the event that changes the states of the resources, and an indicator which indicates information of the assigned backup resources to one or more recovery execution processes. | 01-27-2011 |
20120057464 | ROUTING DEVICE, COMMUNICATIONS SYSTEM, AND ROUTING METHOD - A routing device of the present invention is included in a communication network capable of explicit routing which specifies resources included in a default path for each flow, and includes a detour path detection unit that detects a detour path which enables estimation of temporary transmission quality which can be provided to a flow within a detour region when at least a portion of an explicit default path of the flow transmitted by the routing device is detoured via resources included in a default path of another flow, and a routing unit that routes data of the flow at least to either one of the detour path and the default path, based on a difference between transmission quality of the detour path detected by the detour path detection unit and transmission quality of the default path. | 03-08-2012 |
20120320780 | SPEED ESTIMATION METHOD, SPEED ESTIMATION APPARATUS, SPEED ESTIMATION SYSTEM AND RECORDING MEDIUM OF CONTROL PROGRAM OF SPEED ESTIMATION APPARATUS - In order to enable to judge validity of a measurement result of a transmission rate, a speed estimation method transmits a data packet and probe packets before and after the data packet to a measured section which is a target for measurement of a transmission rate, estimates a transmission rate of a measured section based on a first receiving interval which is a receiving interval between the probe packets transmitted through the measured section just before and immediately after the data packet and a data volume of the data packet, and determines validity of a transmission rate by comparing a second receiving interval which is a receiving interval between the probe packets which have passed the measured section continuously in a state that a data packet does not exist in between them in a measured section and a first receiving interval. | 12-20-2012 |
20130003744 | COMMUNICATION NODE APPARATUS, COMMUNICATION SYSTEM, AND METHOD FOR SELECTING DESTINATION RECEPTION INTERFACE USED THEREFOR - Provided is a communication node apparatus that can attempt optimal utilization of a communication resource of a communication interface mounted on each node apparatus. A communication node apparatus (transmission node apparatus | 01-03-2013 |
20130219082 | MOBILE ROUTER INFORMATION MANAGEMENT SERVER, MOBILE ROUTER, MOBILE ROUTER NETWORK, AND COMMUNICATION METHOD FOR SAME - With the object of enabling data transfer between mobile routers without going through a home agent and establishing a connection to a destination mobile router even when mobile communication terminals equipped in the destination mobile router are changed at the time of initiating connection to the destination mobile router, a mobile router information management server has a mobile router registration information table that registers, for each mobile router, mobile router information that is reported from the mobile routers and that includes identification information of the mobile routers and identification information of mobile communication terminals equipped in the mobile routers, in response to inquiry information from a mobile router that includes identification information of another mobile router that is to be a communication destination, searches the mobile router registration information table, based on the identification information of the other mobile router, for mobile router information that includes identification information of mobile communication terminals equipped in the other mobile router, and returns the searched mobile router information to the mobile router. | 08-22-2013 |
20140089476 | NETWORK SETTING CHANGE METHOD AND SYSTEM THEREOF, AND TERMINALS WHICH ARE USED WITH SAID SYSTEM - The present invention is provided to implement an automated setting change of network setting items on an ad hoc network which does not have a specific base station. A method of changing network setting for changing setting of a network where a plurality of terminals are connected, the method including the steps of: a request source terminal transmitting a request for setting change to a selected representative terminal; the selected representative terminal, upon receiving the request for setting change, transmitting a request for permission to at least a majority of representative terminals; the selected representative terminal transmitting a success notification to the request source terminal upon receiving a notification of permission from the majority of representative terminals in response to the request for permission; the request source terminal transmitting, to the plurality of terminals, an execution instruction including at least a content of setting change, upon receiving the success notification; and the terminal which has received the execution instruction changing the setting according to the content of setting change. | 03-27-2014 |