Nippon Telegraph and Telephone Corporation

Tetsuhiko Murata

Hiroki Nagayama

Masaki Tanikawa

Yukio Nagafuchi

Shingo Kashima

Iifan Tyou

Koki Nomura

Kenji Ota

Akio Mukaiyama

Tsuyoshi Kondo

Takahiro Nukushina

Koji Morishita

Takuya Saeki

Masami Ueno

A communication terminal apparatus includes processing circuitry configured to collect communication of an application and control the communication of the application based on a first control condition, analyze the communication collected to determine whether the application is a communication control target, and generate the first control condition based on a normal communication range of the application that is the communication control target, and transmit at least a part of first shared information including identification information about the application and the first control condition to a second communication terminal apparatus that is different from the communication terminal apparatus.

Communication terminal device, communication control method, and communication control program

A creation device includes processing circuitry configured to collect pieces of information about IoT (Internet of Things) apparatuses connected to IoT gateways, and white lists stored in the IoT gateways, the white lists specifying content of communication allowed for each of the IoT apparatuses, calculate a feature value showing communication features of IoT apparatuses for each of the IoT gateways, and degrees of similarity in the feature value among the IoT gateways, based on the collected pieces of information about the IoT apparatuses, and extract, if any of the calculated similarity degrees is equal to or above a predetermined threshold, pieces of white list information about IoT apparatuses to mutually complement white lists stored in IoT gateways, from pieces of white list information about IoT apparatuses included in the white lists.

Preparation device, preparation system, preparation method, and preparation program

Provided is an IoT GW (), including a learning unit () configured to create, for each IoT device connected to the IoT GW (), a normal communication model () that has learned a normal communication pattern of the IoT device; and a determination unit () configured to: determine, for learning by the learning unit (), whether to interrupt, finish, continue, and resume learning based on a load of a learning environment; and control learning processing by the learning unit () based on a result of determination.

Control device, control method, and control program

An extraction unitextracts predetermined pieces of information from each of a plurality of packets and sent from equipmentThen, an inference unitinfers a piece of equipment information that is information on the equipmentfor each of the plurality of packets on the basis of the pieces of information extracted by the extraction unitThen, the first selection unitselects a predetermined piece of equipment information for each packet type from among pieces of equipment information on the basis of a level of detail of each piece of equipment information. Then, the second selection unitselects, on the basis of a level of reliability predefined according to each packet type, a predetermined piece of equipment information corresponding to the equipmentfrom among pieces of equipment information inferred by the first selection unit

Estimation device, estimation method, and estimation program

A communication control apparatus includes a collection control unit, an analysis unit, and a coordination unit. The collection control unit collects communication performed with a device connected to a subordinate network, and controls communication performed by the device based on a first control condition; The analysis unit analyzes the communication collected by the collection control unit to extract device identification information indicating characteristics of the communication performed by the device. The analysis unit specifies a device name of the device and the first control condition corresponding to a normal communication range extracted from the device identification information, based on the device identification information. The coordination unit transmits at least part of first shared information in which the device name and the first control condition specified by the analysis unit and the device identification information are associated with each other, to an outside of the subordinate network.

Communication control apparatus, communication control method, and communication control program

A gateway device () stores therein a first filtering rule and a second filtering rule for filtering packets which are transmitted from a terminal () in a network () as a transmission source to a terminal () in a network () as a destination. The gateway device () acquires, on the basis of a packet transmitted from the terminal () in the network (), identification information for identifying the terminal (). The gateway device () notifies a management device () of the acquired identification information. The management device () generates a management screen on the basis of the notified information, and transmits the management screen to a display device (). The management device () transmits an instruction based on input to the display device () to the gateway device (). The gateway device () sets the first filtering rule on the basis of the instruction from the management device ().

Growing community of inventors

Musashino, Japan

Tetsuhiko Murata