公开(公告)号：US12114282B2

公开(公告)日：2024-10-08

申请号：US17689520

申请日：2022-03-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Daisuke Uchida ,  Takafumi Sakamoto ,  Koji Akita

IPC: H04W64/00 ,  H04B17/318 ,  H04B17/391

CPC classification number: H04W64/00 ,  H04B17/318 ,  H04B17/391

Abstract: According to one embodiment, an electronic apparatus includes a processor configured to estimate positions where wireless devices communicating each other are located from position candidates based on position candidate information indicating the position candidates of the wireless devices and from first communication information in communication using a first propagation path between the wireless devices to N-th communication information in communication using a N-th propagation path (N: an integer of 2 or more) between the wireless devices.

公开(公告)号：US11906644B2

公开(公告)日：2024-02-20

申请号：US17689583

申请日：2022-03-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Daisuke Uchida ,  Takafumi Sakamoto ,  Koji Akita

IPC: G01S5/00 ,  G01S5/02 ,  H04W64/00

CPC classification number: G01S5/009 ,  G01S5/019 ,  H04W64/006 ,  G01S5/0289

Abstract: According to one embodiment, an electronic apparatus includes a processor configured to estimate positions of wireless devices communicating each other from a plurality of position candidates based on position candidate information indicating the position candidates of the wireless devices and communication information between the plurality of wireless devices located in any of the plurality of position candidates, and determine a first position among the position candidates according to a likelihood of the wireless devices estimated to be located in the position candidates.

公开(公告)号：US10078960B2

公开(公告)日：2018-09-18

申请号：US15449382

申请日：2017-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomoya Tandai ,  Daisuke Uchida ,  Tsuyoshi Kogawa ,  Tomoko Adachi

IPC: H04B7/00 ,  G08G1/01 ,  H04L29/08 ,  G08G1/056 ,  G08G1/095 ,  G08G1/052 ,  H04W4/70 ,  H04W4/00 ,  H04W4/04

CPC classification number: G08G1/0141 ,  G08G1/01 ,  G08G1/0112 ,  G08G1/0116 ,  G08G1/052 ,  G08G1/056 ,  G08G1/095 ,  G08G1/09675 ,  G08G1/096783 ,  G08G1/096791 ,  H04L67/12 ,  H04W4/40 ,  H04W4/44 ,  H04W4/46 ,  H04W4/70

Abstract: According to an embodiment, a communication device is provided in a movable body and is wirelessly communicable with a transceiver unit and another movable body. A receiver of the device receives transceiver unit information including traffic-light information that the transceiver unit has transmitted to a predetermined channel. An processing circuitry extracts the traffic-light information corresponding to a running direction of the movable body from the transceiver unit information. A transmitter transmits movable body information of the movable body to the predetermined channel. A processing circuitry controls a transmission timing of the movable body information such that a transmission control period becomes a preset first time. A processing circuitry changes the transmission control period to a second time longer than the first time, when the traffic-light information with respect to the running direction indicates a stopping command, and a speed of the movable body is a preset speed or less.

公开(公告)号：US20170345298A1

公开(公告)日：2017-11-30

申请号：US15449539

申请日：2017-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomoya TANDAI ,  Daisuke Uchida ,  Tsuyoshi Kogawa ,  Tomoko Adachi

IPC: G08G1/09 ,  H04L29/08 ,  H04L7/00 ,  H04W4/02 ,  G08G1/01

CPC classification number: G08G1/091 ,  G08G1/0112 ,  G08G1/096783 ,  G08G1/096791 ,  H04L7/0008 ,  H04L67/12 ,  H04W4/021 ,  H04W4/046 ,  H04W4/40 ,  H04W4/44 ,  H04W4/46 ,  H04W56/0025

Abstract: According to an embodiment, a communication device is provided in a movable body and is wirelessly communicable with a transceiver unit and another movable body. The communication device includes a transmitter, a receiver, a synchronization unit, a registration unit, and a stop control unit. The transmitter transmits movable body information on the movable body to a predetermined channel. The receiver receives transceiver unit information that the transceiver unit has transmitted to the predetermined channel. The synchronization unit performs synchronization of reception timing when the transceiver unit information can be received. The registration unit registers a communication area of the transceiver unit calculated based on a position where the other movable body receives the transceiver unit information in storage. The stop control unit stops transmission of the movable body information at a reception timing of the transceiver unit information, when a position of the movable body is within the registered communication area.

公开(公告)号：US11452171B2

公开(公告)日：2022-09-20

申请号：US17014327

申请日：2020-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Daisuke Uchida ,  Koji Akita ,  Takafumi Sakamoto

IPC: H04W84/20 ,  H04W88/02 ,  H04W88/06 ,  H04W56/00

Abstract: According to one embodiment, an electronic apparatus includes a transmitter and a processor. The transmitter transmits a signal to a first electronic apparatus with one of patterns including at least a first pattern which is a first order and which uses first to n-th frequency bands in first to n-th periods and a second pattern which is a second order different from the first order and which uses the first to n-th frequency bands in the first to n-th periods, where n is an integer greater than or equal to two. The processor switches a pattern to be used among the patterns in accordance with a communication situation.

公开(公告)号：US11147025B2

公开(公告)日：2021-10-12

申请号：US16558547

申请日：2019-09-03

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Daiki Yoda ,  Koji Akita ,  Daisuke Uchida ,  Tamio Kawaguchi

IPC: H04W52/24 ,  H04W52/26 ,  H04L5/14

Abstract: According to one embodiment, an electronic apparatus includes receiver circuitry, transmitter circuitry, and processor circuitry. The receiver circuitry receives a first signal including first data via a first frequency band. The transmitter circuitry starts transmission of a second signal via at least a part of the first frequency band. The processor circuitry reduces interference caused by the second signal to receive the first signal. The processor circuitry increases a power of the second signal until reducing the interference becomes stable for the first time since the transmitter circuitry has started transmission of the second signal.

公开(公告)号：US10002532B2

公开(公告)日：2018-06-19

申请号：US15449539

申请日：2017-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomoya Tandai ,  Daisuke Uchida ,  Tsuyoshi Kogawa ,  Tomoko Adachi

IPC: G08G1/09 ,  G08G1/01 ,  H04L7/00 ,  H04L29/08 ,  H04W4/02 ,  G08G1/0967 ,  H04W4/04 ,  H04W56/00

CPC classification number: G08G1/091 ,  G08G1/0112 ,  G08G1/096783 ,  G08G1/096791 ,  H04L7/0008 ,  H04L67/12 ,  H04W4/021 ,  H04W4/026 ,  H04W4/027 ,  H04W4/029 ,  H04W4/44 ,  H04W4/46 ,  H04W56/0025

Abstract: According to an embodiment, a communication device is provided in a movable body and is wirelessly communicable with a transceiver unit and another movable body. The communication device includes a transmitter, a receiver, a synchronization unit, a registration unit, and a stop control unit. The transmitter transmits movable body information on the movable body to a predetermined channel. The receiver receives transceiver unit information that the transceiver unit has transmitted to the predetermined channel. The synchronization unit performs synchronization of reception timing when the transceiver unit information can be received. The registration unit registers a communication area of the transceiver unit calculated based on a position where the other movable body receives the transceiver unit information in storage. The stop control unit stops transmission of the movable body information at a reception timing of the transceiver unit information, when a position of the movable body is within the registered communication area.

公开(公告)号：US12166534B2

公开(公告)日：2024-12-10

申请号：US17447197

申请日：2021-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Daisuke Uchida ,  Takafumi Sakamoto ,  Koji Akita ,  Yuki Yonezawa ,  Yukako Tsutsumi

IPC: H04B17/309 ,  H04W64/00

Abstract: According to one embodiment, an electronic apparatus includes a processor configured to estimate positions of a plurality of wireless devices from a plurality of position candidates based on position candidate information indicating the plurality of position candidates of the wireless devices, first communication information related to communication using a first electromagnetic wave between the plurality of wireless devices, and second communication information related to communication using a second electromagnetic wave between the plurality of wireless devices.