| Patent application number | Description | Published |
|---|
| 20080285447 | Session Relaying Apparatus, Session Relay Method, and Session Relay Program - In a data reception processor ( | 11-20-2008 |
| 20090109858 | Communication Quality Determining Apparatus, Communication Quality Determining Method and Its Program - A communication quality determining apparatus for receiving or intercepting data sent from a transmission side to a reception side en route of its transmission, and determining its communication quality. The apparatus includes a deciding unit for making a decision on whether an input packet is to be acquired. The apparatus also includes an estimating unit for, by comparing information on an acquired packet predicted based on an acquired packet acquired based on a result of the decision with information on an actually acquired packet, estimating communication quality of a session that the acquired packet belongs to. | 04-30-2009 |
| 20090116402 | COMMUNICATION QUALITY MEASURING APPARATUS AND COMMUNICATION QUALITY MEASURING METHOD - A measuring apparatus for measuring quality of a network accurately measures a number of times of a data loss even if all the packets to be measured are not obtained or cannot be obtained. Further, a process load applied to the measuring apparatus is decreased by processing a part of the packets to be measured. | 05-07-2009 |
| 20090285110 | TRANSMISSION PATH QUALITY MEASURING DEVICE, COMMUNICATION SYSTEM, QUALITY MEASUREMENT METHOD, AND QUALITY MEASURING PROGRAM - The present invention provides a communication quality measuring device, a communication quality measurement method, and a communication quality measuring program by which the reliability and accuracy of the results of measurement carried out on a transmission path are improved, and comparisons between the results of measurement at one time and the results of measurement at another time or between one flow and another flow are made easier. | 11-19-2009 |
| 20090303892 | ESTIMATION METHOD, DEVICE, AND PROGRAM, AND NETWORK MEASURING SYSTEM - An inversion of a packet transmission sequence number is observed in a predetermined sampling measurement. The number of sampled sequence numbers greater than the sequence number upon the inversion is measured as an inversion degree. A number of packet losses or a loss ratio is estimated according to the inversion degree under the estimated full sampling measurement and the inversion degree observed under a predetermined sampling measurement. | 12-10-2009 |
| 20100027436 | NODE DEVICE, NODE SYSTEM, AND METHOD AND PROGRAM FOR CHANGING STATISTIC INFORMATION MANAGEMENT TABLE USED FOR THE NODE DEVICE - To provide a node device improving the measurement accuracy of the network communication quality and creating a smaller table for managing statistics information on the communication quality. An importance degree judging section determines the importance degree of a flow by referencing data for judging the degree of importance in the Z-list. An E-list stores statistics data on a flow having a high degree of importance of monitoring. A change judging section makes a judgment on change according to the importance degree of the flow and the importance degree in the E-list. An integral quality calculating section totalizes the qualities of the normal packet information that was measured in a normal packet quality measuring section and the statistics information that was measured in a statistics information quality measuring section and records the total in a quality result section. | 02-04-2010 |
| 20100265838 | COMMUNICATION QUALITY ESTIMATION SYSTEM, EQUIPMENT, METHOD AND PROGRAM - A communication quality estimation system has: a plurality of equipments performing packet transmission on a network; and a communication quality estimation equipment. The plurality of equipments includes: a first equipment; a second equipment; and a third equipment placed downstream of the first equipment and upstream of the second equipment. The communication quality estimation equipment estimates communication quality in the third equipment by comparing a number of first packets satisfying a first sampling rule out of packets transmitted by the first equipment and a number of second packets satisfying the first sampling rule out of packets transmitted by the second equipment. | 10-21-2010 |
