公开(公告)号：US12118761B2

公开(公告)日：2024-10-15

申请号：US17617705

申请日：2020-06-25

Applicant: NTT DOCOMO, INC.

Inventor： Tomoe Ushiro ,  Naoki Kameyama ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: B64C39/02 ,  A01K29/00 ,  G05D1/00 ,  G06V20/17 ,  G06V40/10 ,  B64U10/13 ,  B64U101/31

CPC classification number: G06V20/17 ,  A01K29/005 ,  G05D1/101 ,  G06V40/10 ,  B64U10/13 ,  B64U2101/31

Abstract: Server apparatus, by controlling aerial vehicle, causes aerial vehicle to fly within a close range of an animal group, and causes aerial vehicle to capture images of the animal group. Aerial vehicle transmits captured image data to server apparatus via communication network, and server apparatus checks a health state of animals of the animal group using the captured image data with a method such as image analysis. Server apparatus performs machine learning using position information history of wireless terminals attached to animals (that is, a movement history of the animal group), specifies an area for checking the state of the animal group, and causes aerial vehicle to fly to the specified area and to capture images of the animal group.

公开(公告)号：US11948469B2

公开(公告)日：2024-04-02

申请号：US17312571

申请日：2020-01-14

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: G08G5/04 ,  G08G5/00

CPC classification number: G08G5/045 ,  G08G5/0043 ,  G08G5/0086 ,  G08G5/0091

Abstract: A flight information acquisition unit repeatedly acquires the respective flight status of a plurality of drones in flight. A flight irregularity determination unit determines whether or not the drones are flying in a manner deviated from a flight plan. When a flight status of a drone indicating flight deviated from the flight plan has been acquired, a first collision specification unit specifies the drone at risk of collision with a drone having that flight status. When a flight status indicating that there is a possibility of crash for a drone has been acquired, a flight status processing unit (such as a flight irregularity determination unit) sets a higher priority for processing based on the flight status acquired from that drone than for processing based on the flight status acquired from another drone.

公开(公告)号：US11528674B2

公开(公告)日：2022-12-13

申请号：US17269154

申请日：2019-05-21

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Youhei Oono ,  Yuichiro Segawa ,  Shinya Hanano ,  Takashi Yoshimoto ,  Yasuhiro Kitamura

IPC: H04W56/00 ,  H04W4/02 ,  H04W72/12

Abstract: If a propagation delay equal to or greater than a threshold value is detected in the uplink of a time-division duplex between a first wireless communication terminal and a first wireless base station, a suppression unit 52 performs control pertaining to resources in the time-division duplex of a first wireless communication terminal. Thereby, communication errors that occur in a second wireless communication terminal wirelessly connected to the second wireless base station that is different from the first wireless base station, to which the first wireless communication terminal is wirelessly connected, is suppressed by uplink communication performed by the first wireless communication terminal in accordance with the propagation delay. For example, this suppression process is a process pertaining to the assignment of resources a time-division duplex with respect to the first wireless communication terminal.

公开(公告)号：US12154009B2

公开(公告)日：2024-11-26

申请号：US17283166

申请日：2019-10-28

Applicant: NTT DOCOMO, INC.

Inventor： Tadao Takami ,  Koji Ishii ,  Jooin Woo ,  Hiroshi Kawakami ,  Kaori Niihata ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: G06N20/00 ,  G06V20/59

Abstract: A server device performs machine learning on the relationship between the content of piloting of an aerial vehicle and the behavior of the aerial vehicle in response to the content of the piloting, and generates a learning model for automatically piloting the aerial vehicle. However, the aerial vehicle is piloted in various environments and conditions, and there are environments and conditions that are unsuited for achieving highly accurate and stable automatic piloting. Therefore, the server device performs the machine learning only in an environment or a condition suited for realizing the automatic piloting.

公开(公告)号：US11978349B2

公开(公告)日：2024-05-07

申请号：US17433394

申请日：2020-01-24

Applicant: NTT DOCOMO, INC.

Inventor： Kaori Niihata ,  Tadao Takami ,  Koji Ishii ,  Hiroshi Kawakami ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: G08G5/00 ,  H04W40/10 ,  H04W40/12 ,  H04W84/06 ,  G05D1/00 ,  H04W88/06

CPC classification number: G08G5/0043 ,  H04W40/10 ,  H04W40/12 ,  G05D1/101 ,  H04W84/06 ,  H04W88/06

Abstract: A setting unit sets the operating mode of an aerial vehicle to a first operating mode that transmits, data generated by a host aerial vehicle and data received from another aerial vehicle to a processing device, or a second operating mode that transmits data generated by a host aerial vehicle to another aerial vehicle. At this time, setting unit sets the operating modes of each of a plurality of aerial vehicles using a setting method corresponding to the attributes of an airspace in which aerial vehicle flies, from among a plurality of setting methods that set the operating mode of aerial vehicle. The attributes of an airspace include attributes determined in accordance with a degree of importance pertaining to the process of transmitting data from aerial vehicle to a server device and/or attributes determined in accordance with the extent to which processes are distributed among a plurality of aerial vehicles.

公开(公告)号：US11810462B2

公开(公告)日：2023-11-07

申请号：US17269324

申请日：2019-05-21

Applicant: NTT DOCOMO, INC.

Inventor： Takefumi Yamada ,  Youhei Oono ,  Yuichiro Segawa ,  Shinya Hanano ,  Takashi Yoshimoto ,  Yasuhiro Kitamura

IPC: G08G5/00 ,  H04L5/14 ,  H04W56/00 ,  B64U101/20

CPC classification number: G08G5/0043 ,  G08G5/0004 ,  H04L5/14 ,  H04W56/0055

Abstract: A specifying unit 51 of a flying body operation management device 50 specifies an airspace in which a propagation delay equal to or greater than a threshold value occurs in the uplink of a time-division duplex between a wireless communication terminal 30 and a wireless base station 41 to which wireless communication terminal 30 is wirelessly connected. Next, an assigning unit 52 of flying body operation management device 50 performs a process of assigning, with respect to each airspace, a flying body 10 having a wireless communication terminal 20. At this time, with respect to an airspace specified by specifying unit 51, assigning unit 52 limits the assigning of flying body 10 on which wireless communication terminal 20 is mounted.

公开(公告)号：US11794900B2

公开(公告)日：2023-10-24

申请号：US17283386

申请日：2019-10-28

Applicant: NTT DOCOMO, INC.

Inventor： Tadao Takami ,  Koji Ishii ,  Jooin Woo ,  Hiroshi Kawakami ,  Kaori Niihata ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: B64D1/02 ,  B64C39/02 ,  B64D47/08 ,  G05D1/00 ,  B64U101/60

CPC classification number: B64D1/02 ,  B64C39/024 ,  B64D47/08 ,  G05D1/0011 ,  G05D1/0088 ,  B64U2101/60 ,  B64U2201/10 ,  B64U2201/20

Abstract: Baggage is connected to an aerial vehicle in a state in which the baggage is suspended by a connector such as rope. A learning unit of a server device performs machine learning on the relationship between the piloting of an aerial vehicle and the behavior of baggage on the basis of an aerial vehicle behavior history and a piloting history acquired by a first acquisition unit and a baggage behavior history acquired by a second acquisition unit. With this arrangement, the automatic piloting of the aerial vehicle at the time of lowering baggage is achieved.

公开(公告)号：US12103679B2

公开(公告)日：2024-10-01

申请号：US17617646

申请日：2020-06-16

Applicant: NTT DOCOMO, INC.

Inventor： Tomoe Ushiro ,  Naoki Kameyama ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: B64C39/02 ,  B64C19/02 ,  B64D47/02 ,  B64D47/08 ,  E01C23/01 ,  G01C7/04 ,  G03B15/03 ,  G05D1/00

CPC classification number: B64C39/02 ,  B64C19/02 ,  B64D47/02 ,  B64D47/08 ,  E01C23/01 ,  G01C7/04 ,  G03B15/03 ,  G05D1/101

Abstract: An information processing apparatus includes a control unit that controls a first flying vehicle and a second flying vehicle. The first flying vehicle captures an image of a surface of a road. The second flying vehicle emits light onto the surface, such that a spot where a level difference is estimated, in advance, to occur on the surface, an image capturing direction in which the first flying vehicle captures an image of the spot, and a light emitting direction in which the second flying vehicle emits the light onto the spot have a relationship that causes, when the level difference exists, a shadow to occur at the spot and the shadow to be captured.

公开(公告)号：US11756436B2

公开(公告)日：2023-09-12

申请号：US17433406

申请日：2020-01-24

Applicant: NTT DOCOMO, INC.

Inventor： Kaori Niihata ,  Tadao Takami ,  Koji Ishii ,  Hiroshi Kawakami ,  Yuichiro Segawa ,  Yasuhiro Kitamura

IPC: H04W72/00 ,  G08G5/00 ,  B64C39/02 ,  H04W72/542 ,  G05D1/10 ,  H04W88/06 ,  B64U101/20

CPC classification number: G08G5/0069 ,  B64C39/024 ,  H04W72/542 ,  B64U2101/20 ,  G05D1/104 ,  H04W88/06

Abstract: Setting unit performs the setting of each of the operating modes of a plurality of aerial vehicles on the basis of communication quality information of the planned route of the plurality of aerial vehicles that fly in a group. Specifically, setting unit firstly specifies the planned positions and periods in which each aerial vehicle is to fly from the flight plan information of the plurality of aerial vehicles that fly in a group. Next, setting unit specifies a communication quality of first wireless communication unit of each aerial vehicle in each position and each period from the communication quality information that represents the communication quality in the specified positions and periods. Then, setting unit specifies an operating mode setting schedule of main unit mode and auxiliary unit mode, which sets an aerial vehicle having a specified communication quality, and sets the remaining aerial vehicles as auxiliary units.

公开(公告)号：US11528096B2

公开(公告)日：2022-12-13

申请号：US16310574

申请日：2017-06-19

Applicant: NTT DOCOMO, INC.

Inventor： Yasuhiro Kitamura ,  Hiroki Harada ,  Ryosuke Osawa

IPC: H04L1/16 ,  H04W28/04 ,  H04L1/18 ,  H04L5/00

Abstract: The present invention is designed to improve the efficiency of the use of radio resources in retransmission control in future radio communication systems. A user terminal according to one aspect of the present invention has a receiving section that receives a downlink (DL) signal, and a control section that, when a transport block of the DL signal is divided into a plurality of code blocks, controls transmission of retransmission control information representing an acknowledgment (ACK) or a negative acknowledgment (NACK) for each code block, or representing an ACK or a NACK for each code block group, which groups fewer code blocks than the plurality of code blocks.