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    AMUSEMENT DEVICE
    1.
    发明公开
    AMUSEMENT DEVICE 审中-公开

    公开(公告)号：US20240335735A1

    公开(公告)日：2024-10-10

    申请号：US18290807

    申请日：2021-08-18

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Riku OMIYA ,  Ryotaro TANIGUCHI ,  Tomoki MURAKAMI ,  Tomoaki OGAWA ,  Yasushi TAKATORI ,  Yukina TAKANO

    IPC: A63F9/00

    CPC classification number: A63F9/001

    Abstract: The amusement device according to the present disclosure includes: a laser irradiation unit 1 that emits a laser beam; a reflector 3 that reflects the laser beam emitted from the laser irradiation unit 1; and a laser light receiving unit 2 that serves as a target onto which the laser beam emitted from the laser irradiation unit 1 is incident. The amusement device according to the present disclosure further includes an obstacle 5 that can block the laser beam emitted from the laser irradiation unit 1. The laser irradiation unit 1 is configured to enable the emission direction of the laser beam to be changed by an operation by a user. The reflector 3 is configured to enable the direction of a reflection surface to be changed by an operation by the user. The obstacle 5 is configured to be movable by an operation by the user.

    WIRELESS TERMINAL CONNECTION CONTROL METHOD
    2.
    发明公开
    WIRELESS TERMINAL CONNECTION CONTROL METHOD 审中-公开

    公开(公告)号：US20240276308A1

    公开(公告)日：2024-08-15

    申请号：US18567213

    申请日：2021-06-08

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Masayoshi NABESHIMA ,  Tomoki MURAKAMI ,  Tomoaki OGAWA ,  Hideki OGAWA ,  Taichi KAWANO

    IPC: H04W28/24 ,  H04W48/16 ,  H04W84/12

    CPC classification number: H04W28/24 ,  H04W48/16 ,  H04W84/12

    Abstract: A wireless terminal connection control method evaluates QoE prior to connection of a wireless terminal to a wireless LAN, and permits connection to the wireless LAN in a case where QoE of a predetermined level or higher can be guaranteed. First, a QoE value indicating the wireless communication quality felt by the user is received from each wireless terminal connected to the wireless LAN access point. Next, an overall QoE value is calculated based on each received QoE value. Then, connection between the wireless LAN access point and the wireless terminal in the non-connected state is permitted in a case where there is a connection request from the wireless terminal in the non-connected state to the wireless LAN access point to the wireless LAN access point and in a case where the overall QoE value is equal to or greater than a threshold value.

    RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND REFLECTOR
    4.
    发明公开
    RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND REFLECTOR 审中-公开

    公开(公告)号：US20230171624A1

    公开(公告)日：2023-06-01

    申请号：US17922080

    申请日：2020-05-27

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Masashi IWABUCHI ,  Tomoaki OGAWA ,  Tomoki MURAKAMI

    IPC: H04W24/08 ,  H04W16/26

    CPC classification number: H04W24/08 ,  H04W16/26

    Abstract: Communication is performed between a radio base station and a radio terminal via a reflector. The radio base station transmits a measurement signal including a beam ID of a transmission beam for measuring communication quality between the radio base station and the radio terminal. The reflector reflects the measurement signal incident on the reflector in multiple reflection directions to generate multiple reflected measurement signals. Moreover, the reflector modulates the incident measurement signal during reflection to add information about a reflection direction ID being different for each of the multiple reflection directions to each of the multiple reflected measurement signals. The radio terminal demodulates a reflected measurement signal received from the reflector to acquire the reflection direction ID and the beam ID. The radio terminal then evaluates the communication quality for each combination of the beam ID and the reflection direction ID based on reception state of the received reflected measurement signal.

    TERMINAL DEVICES, COMMUNICATION METHODS, AND COMMUNICATION SYSTEMS
    6.
    发明申请
    TERMINAL DEVICES, COMMUNICATION METHODS, AND COMMUNICATION SYSTEMS 有权

    公开(公告)号：US20230025646A1

    公开(公告)日：2023-01-26

    申请号：US17785370

    申请日：2019-12-16

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Ryota SHIINA ,  Tomohiro TANIGUCHI ,  Kazutaka HARA ,  Shinya TAMAKI ,  Tomoki MURAKAMI ,  Toshiro NAKAHIRA

    IPC: H04B10/114

    Abstract: An object is to provide a terminal device, a communication method, and a communication system which are capable of acquiring accurate optical ID information regardless of the position of the terminal device and the light receiving angle.
    The terminal device, the communication method, and the communication system according to the present invention each sets a threshold value for the illuminance of a received optical signal by using a moving average method, a weighted moving average method, or an exponential moving average, so that the optical signal can be binarized with a threshold value according to a change in the position of the terminal device, the light receiving angle, or the like. Information from other sensors may be used to set the threshold value.

    SPATIAL IMAGE GENERATING DEVICE, OBJECT DETECTION DEVICE AND OBJECT DETECTION METHOD
    8.
    发明申请
    SPATIAL IMAGE GENERATING DEVICE, OBJECT DETECTION DEVICE AND OBJECT DETECTION METHOD 有权

    公开(公告)号：US20220299620A1

    公开(公告)日：2022-09-22

    申请号：US17636558

    申请日：2020-08-19

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Tomoki MURAKAMI ,  Hirantha ABEYSEKERA ,  Shunsuke SARUWATARI ,  Takeru FUKUSHIMA ,  Yusuke IWASAKI ,  Takashi WATANABE

    IPC: G01S13/06 ,  G01S5/02 ,  G02B30/56

    Abstract: A spatial image generation apparatus includes: a propagation channel information measurer that measures propagation channel information of a target area from radio signals delivered between transmitting and receiving stations; a learned model generator that generates a learned model for generating a spatial image of the target area from the newly input propagation channel information using the propagation channel information and image information obtained by imaging the target area with a camera; and an image generator that generates the spatial image of the target area by inputting the propagation channel information newly input from the propagation channel information measurer to the learned model. The object detection apparatus includes: the spatial image generation apparatus; and an object detector that detects an object in the target area from the spatial image generated by the image generator using an image analysis method.

    WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
    10.
    发明申请
    WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权

    公开(公告)号：US20210037448A1

    公开(公告)日：2021-02-04

    申请号：US16969085

    申请日：2019-02-12

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Toshiro NAKAHIRA ,  Tomoki MURAKAMI ,  Koichi ISHIHARA ,  Mamoru AKIMOTO ,  Takafumi HAYASHI

    IPC: H04W48/02 ,  H04W48/16 ,  H04W88/10 ,  H04W88/06

    Abstract: [Problem] In a terminal station and a base station, in which a plurality of wireless communication units supporting different communication performances are mounted, it is possible to select and switch wireless communication unit which responds to a congested condition of wireless communication and a wireless communication quality, and further improves a wireless resource usage efficiency.
    [Solution] A wireless communication units individually supporting a plurality of communication performances and selecting a wireless communication unit with respect to a terminal station that has made a connection request according to a communication performance of the terminal station, wherein the base station includes a control unit that is configured to hold, for each of the wireless communication units, terminal station connection permission information indicating a permission condition as to whether permission of the connection request of the terminal station be granted according to the communication performance, to collate the communication performance of the terminal station with the terminal station connection permission information of the wireless communication unit to which the connection request was made, to establish a wireless connection with the terminal station in a case where the communication performance of the terminal station matches the permission condition, and, in a case where the communication performance does not match the permission condition, to direct the terminal station to another wireless communication unit whose permission condition matches the communication performance of the terminal station.

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