公开(公告)号：US20230327755A1

公开(公告)日：2023-10-12

申请号：US18024939

申请日：2020-09-11

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yuka OKAMOTO ,  Tomoya HATANO ,  Hirotaka UJIKAWA ,  Sei KOU

IPC: H04B10/07

CPC classification number: H04B10/07

Abstract: Provided is a communication monitoring system capable of monitoring a state of a connection device that forms an optical path by using an optical passive component. A communication monitoring system (1) includes a plurality of photodetectors (9) provided in a connection device (6), a plurality of recognition units (13), a processing unit (14), a light emitting unit (15), a mixing unit (12), a separation unit (16), a collection unit (17), and a management unit (18). The photodetector (9) detects an optical signal passing through a corresponding optical path. The recognition unit (13) recognizes a state of detection by the corresponding photodetector (9). The processing unit (14) generates information regarding a communication state of the connection device (6) on the basis of the recognition by each recognition unit (13). The light emitting unit (15) converts the generated information into a monitoring signal that is an optical signal and transmits the monitoring signal. The monitoring signal is passed through an optical communication line (3) as a mixed signal by the mixing unit (12) and is separated from the mixed signal by the separation unit (16). The collection unit (18) outputs the separated monitoring signal to the management unit (18) that manages a state of a PON (2).

公开(公告)号：US20230239216A1

公开(公告)日：2023-07-27

申请号：US17928701

申请日：2020-06-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Sei KOU ,  Tomoya HATANO

IPC: H04L41/12

CPC classification number: H04L41/12

Abstract: A topology detection unit (11) detects a physical connection status between adjacent devices (A, C) and a replaced device group (B) as a first topology and detects a physical connection status between the adjacent devices (A, C) and a replacement device group (D) as a second topology. A setting information acquisition unit (13) acquires setting information of each of the adjacent devices (A, C) and the replaced device group (B). A replaced-device-group information arrangement unit (14) uses the first topology to extract the setting information of each of the adjacent devices (A, C) related to the setting information of the replaced device group (B). A configuration generation unit (15) generates the configuration of the replacement device group (D), the configuration adapting to the second topology, based on the extracted setting information of each of the adjacent devices (A, C) The configuration setting unit (16) sets the generated configuration in the replacement device group (D).

公开(公告)号：US20250004997A1

公开(公告)日：2025-01-02

申请号：US18710862

申请日：2021-12-06

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Sei KOU ,  Takashi YAMADA

IPC: G06F16/21

Abstract: An aspect of the present invention is a database management device including: a generation unit for generating a database; a monitoring unit for monitoring a physical quantity having a positive correlation with a usage of the database generated by the generation unit; and a management unit instructing the generation unit to generate a new database as the database to be used subsequent to the database currently in use when the physical quantity monitored by the monitoring unit exceeds a threshold value, and the generation unit reserves a region for storing the new database within a storage device and generates the new database in the reserved region when instructed to generate the new database by the management unit.

公开(公告)号：US20230336448A1

公开(公告)日：2023-10-19

申请号：US18026638

申请日：2020-09-30

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Shinya Tamaki ,  Ryota SHIINA ,  Tetsuya Suzuki ,  Yasutaka KIMURA ,  Tomohiro TANIGUCHI ,  Sei KOU ,  Tomoya HATANO

IPC: H04L43/08 ,  G16Y40/10 ,  G16Y20/20

CPC classification number: H04L43/08 ,  G16Y40/10 ,  G16Y20/20

Abstract: An object of the present disclosure is to collectively collect sensing data and metadata regarding normality of equipment by utilizing light communication protocol.
The present disclosure is a system that collects sensing data from a sensor terminal in a data collection unit using a data collection network, the sensor terminal including a detection unit configured to detect metadata regarding internal information of the sensor terminal other than a sensor device that detects sensing data and equipment information and transmitting the metadata detected by the detection unit using an extended area or an optional area defined in communication protocol for transmitting the sensing data or the equipment information in a frame defined in the communication protocol, and the data collection unit associating the sensing data, the equipment information, and the metadata on the basis of information for identifying the sensor terminal described in the frame.

公开(公告)号：US20230232215A1

公开(公告)日：2023-07-20

申请号：US18008568

申请日：2020-06-11

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Sei KOU ,  Tomoya HATANO ,  Tetsuya SUZUKI ,  Yasutaka KIMURA ,  Tomohiro TANIGUCHI ,  Shinya TAMAKI

IPC: H04W8/26

CPC classification number: H04W8/26

Abstract: A location information transmitter transmits location information within a prescribed area. An IoT terminal receives the location information and transmits the location information and a device identifier. An address setting management device receives the location information and the device identifier and sets an IP address to be assigned to the IoT terminal on the basis of the location information and the device identifier and transmits the IP address to the IoT terminal. The IoT terminal sets the IP address received from the address setting management device for itself.

公开(公告)号：US20220368595A1

公开(公告)日：2022-11-17

申请号：US17623938

申请日：2019-07-01

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Sei KOU ,  Tomoya HATANO

IPC: H04L41/0896 ,  H04L49/00

Abstract: A replacement management apparatus includes a detection section which detects a first communication speed and first setting information of a physical port used for connection for each of a communication apparatus to be replaced and a communication apparatus to be connected, and detects a second communication speed of a physical port used for connection for a replacing communication apparatus, and a generation section which generates second setting information of the physical port used for connection for each of the replacing communication apparatus and the communication apparatus to be connected based on the detected first communication speed, the detected second communication speed, and the detected first setting information.

公开(公告)号：US20220368588A1

公开(公告)日：2022-11-17

申请号：US17623953

申请日：2019-07-01

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Sei KOU ,  Tomoya HATANO

IPC: H04L41/0668 ,  H04L49/00

Abstract: A replacement management apparatus includes a detection unit configured to detect, for both a communication apparatus to be replaced and a communication apparatus for replacement, communication speeds of physical ports used for connection, in units of communication apparatuses that are connection destinations, and a replacement determination unit configured to derive, for both the communication apparatus to be replaced and the communication apparatus for replacement, a communication capacity that is a sum of the communication speeds for each of the communication apparatuses that are connection destinations, and determine, for all of the communication apparatuses that are connection destinations, in a case in which the communication capacity of the communication apparatus for replacement is equal to or greater than the communication capacity of the communication apparatus to be replaced, that the communication apparatus to be replaced is replaceable with the communication apparatus for replacement.