Granted Patent B2

US 12,549,463 · App. 18/027,597 · Granted Feb 10, 2026

Inventors: Takuya Oda (Musashino, JP); Takuya Ohara (Musashino, JP); Fumikazu Inuzuka (Musashino, JP); Takafumi Tanaka (Musashino, JP); Masayuki Shimoda (Musashino, JP)

Assignee: NTT, Inc.

H04L43/0852

Abstract

Claims (26)

1 . An information processing method in an information processing system comprising a plurality of input/output devices to be used by a plurality of users, a plurality of computing machines connected to the plurality of input/output devices, and a central computing machine connected to the plurality of computing machines, in which a connection between the input/output device and the plurality of computing machines is made via a network and a connection between the plurality of computing machines and the central computing machine is made via the network, and the fall plurality of users uses a same content by using the plurality of input/output devices via the network, the method comprising:

measuring, by a delay measurement device comprising a processor configured to execute a program, an amount of transmission delay generated between each of the input/output devices and the central computing machine for each of the plurality of users; and

adjusting, by a delay adjustment device, a difference in the amount of transmission delay between the plurality of users to be kept within a predetermined value on the basis of the measured amount of transmission delay,

wherein the adjusting of the difference comprises:

adjusting the amount of transmission delay in units of one or more groups of users, which are created on the basis of the amount of transmission delay for each of the plurality of users and include only users in which the difference in the amount of transmission delay between the plurality of users can be adjusted to be kept within the predetermined value; and

adjusting the amount of transmission delay so as to achieve end-to-end equalization of the amount of transmission delay, instead of adjustment for each communication section, in a case where there is a plurality of communication sections in the connection between the input/output devices and the plurality of computing machines and the connection between the plurality of computing machines and the central computing machine.

2 . An information processing system comprising a plurality of input/output devices to be used by a plurality of users, a plurality of computing machines connected to the plurality of input/output devices, and a central computing machine connected to the plurality of computing machines, in which a connection between the input/out devices and the plurality of computing machines is made via a network and a connection between the the plurality of computing machines and the central computing machine is made via the network, and the plurality of users uses a same content by using the plurality of input/output devices via the network, the information processing system comprising:

a delay measurement device comprising a processor configured to execute a program to measure an amount of transmission delay generated between each of the input/output devices as and the central computing machine for each of the plurality of users; and

a delay adjustment device configured to adjust a difference in the amount of transmission delay between the plurality of users to be kept within a predetermined value on the basis of the measured amount of transmission delay,

wherein the delay adjustment device is further configured to:

adjust the amount of transmission delay in units of one or more groups of users, which are created on the basis of the amount of transmission delay for each of the plurality of users and include only users in which the difference in the amount of transmission delay between the plurality of users can be adjusted to be kept within the predetermined value; and

adjust the amount of transmission delay so as to achieve end-to-end equalization of the amount of transmission delay, instead of adjustment for each communication section, in a case where there is a plurality of communication sections in the connection between the input/output devices and the plurality of computing machines and the connection between the plurality of computing machines and the central computing machine.

3 . The information processing system according to claim 2 , wherein

the delay adjustment device is configured to adjust the amount of transmission delay to make the amount of transmission delay be equal between the users.

4 . The information processing system according to claim 2 , wherein

the network comprises a circuit-switched network.

5 . The information processing system according to claim 2 , wherein

the delay adjustment device is configured to adjust the amount of transmission delay in units of two or more clusters of users who are allowed to interact with each other in the same content.

6 . The information processing system according to claim 5 , wherein

the delay adjustment device is configured to adjust the amounts of transmission delay in units of two or more groups of users in the clusters of users.

7 . A non-transitory computer readable storage medium storing a program for causing a computer of a delay adjustment device in an information processing system comprising a plurality of input/output devices to be used by a plurality of users, a plurality of computing machines connected to the plurality of input/output devices, and a central computing machine connected to the plurality of computing machines, in which a connection between the input/output devices and the plurality of computing machines is made via a network and a connection between the the plurality of computing machines and the central computing machine is made via the network, and the plurality of users uses a same content by using the plurality of input/output devices via the network, to execute:

measurement of an amount of transmission delay generated between each of the input/output devices and the central computing machine for each of the plurality of users; and

adjustment of a difference in the amount of transmission delay between the users to be kept within a predetermined value on the basis of the measured amount of transmission delay,

wherein the adjusting of the difference comprises:

adjusting the amount of transmission delay in units of one or more groups of users, which are created on the basis of the amount of transmission delay for each of the plurality of users and include only users in which the difference in the amount of transmission delay between the plurality of can be adjusted to be kept within the predetermined value; and

adjusting the amount of transmission delay so as to achieve end-to-end equalization of the amount of transmission delay, instead of adjustment for each communication section, in a case where there is a plurality of communication sections in the connection between the input/output devices and the plurality of computing machines and the connection between the plurality of computing machines and the central computing machine.

Assignments (2)

Continuity (1)

References Cited (71)