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27 条记录 (耗时 0.02 秒)

    BAN SYSTEM, TERMINAL APPARATUS, BAN COMMUNICATIONS METHOD, AND COMPUTER PRODUCT
    4.
    发明申请
    BAN SYSTEM, TERMINAL APPARATUS, BAN COMMUNICATIONS METHOD, AND COMPUTER PRODUCT 有权
    BAN系统，终端设备，BAN通信方法和计算机产品

    公开(公告)号：US20160057582A1

    公开(公告)日：2016-02-25

    申请号：US14751376

    申请日：2015-06-26

    申请人： FUJITSU LIMITED

    发明人： Toshihiro Kunitake ,  HIROKI AKANO ,  Yuki Iwamasa ,  Eiji Matsumoto ,  Ichirou Ida ,  Tatsuya Kikuzuki ,  Kazumi Kasai ,  Teruhisa Ninomiya

    IPC分类号： H04W4/02 ,  H04W8/00 ,  H04W4/00

    CPC分类号： H04W4/027 ,  H04Q9/00 ,  H04W4/80 ,  H04W8/005 ,  H04W84/18

    摘要： A BAN system includes multiple terminal apparatuses connected by wireless communication, where a terminal apparatus of the multiple terminal apparatuses is configured to identify in which direction acceleration has changed, the direction being identified based on a measurement result of a sensor of the terminal apparatus, the sensor being configured to measure acceleration; and to refer to information that specifies corresponding to places where the plurality of terminal apparatuses is to be attached to a body, directions in which acceleration changes when the body performs a given behavior, and determines based on the identified direction, a place where the terminal apparatus is attached to the body.

    摘要翻译： BAN系统包括通过无线通信连接的多个终端装置，其中，多个终端装置的终端装置被配置为基于终端装置的传感器的测量结果来识别加速度已经改变的方向，识别方向， 传感器被配置成测量加速度; 参照指定对应于多个终端装置附着于身体的位置的信息，当身体执行给定行为时加速度变化的方向，并且基于所识别的方向来确定终端的位置 装置附着在身上。

    WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION APPARATUS
    5.
    发明申请
    WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION APPARATUS 有权
    无线通信方法，无线通信系统和无线通信设备

    公开(公告)号：US20130195011A1

    公开(公告)日：2013-08-01

    申请号：US13719827

    申请日：2012-12-19

    申请人： FUJITSU LIMITED

    发明人： Tatsuya Kikuzuki

    IPC分类号： H04W4/00

    CPC分类号： H04W4/00 ,  H04L1/1887 ,  H04W74/006

    摘要： A wireless communication method includes: detecting, at a wireless communication apparatus, a collision of data transmitted from a plurality of wireless communication terminals during a first period that is in a communication-enabled state; shifting, when the collision has been detected, a second period, which belongs to the same frame as the first period and is in a communication-disabled state, to a communication-enabled state; transmitting, at the wireless communication apparatus, a request to the plurality of wireless communication terminals for retransmission of the data and receiving data transmitted from the plurality of wireless communication terminals in response to the request, using the shifted second period.

    摘要翻译： 一种无线通信方法，包括：在无线通信装置中，在处于通信使能状态的第一期间，检测从多个无线通信终端发送的数据的冲突; 当检测到冲突时，与属于通信禁止状态的属于与第一时段相同的帧的第二时段转换为通信使能状态; 在所述无线通信装置处，使用所述移位的第二周期，响应于所述请求向所述多个无线通信终端发送对所述数据的重发和从所述多个无线通信终端发送的数据的请求。

    RADIO WAVE INTERFERENCE ANALYSIS APPARATUS AND RADIO WAVE INTERFERENCE ANALYSIS METHOD
    6.
    发明申请
    RADIO WAVE INTERFERENCE ANALYSIS APPARATUS AND RADIO WAVE INTERFERENCE ANALYSIS METHOD 审中-公开

    公开(公告)号：US20190007852A1

    公开(公告)日：2019-01-03

    申请号：US16019741

    申请日：2018-06-27

    申请人： FUJITSU LIMITED

    发明人： Tatsuya Kikuzuki ,  Shiho Nakahara ,  Akihiro WADA ,  Hiromasa Yamauchi ,  Makoto HAMAMINATO ,  Teruhisa Ninomiya

    IPC分类号： H04W24/08 ,  H04B17/336 ,  H04L12/24 ,  H04L1/20

    摘要： There is provided a radio wave interference analysis apparatus configured to analyze a state of interference due to a plurality of interference signals of a plurality of interference sources on a target signal of a wireless device as an evaluation target at a reception point, the radio wave interference analysis apparatus including a memory, and a processor coupled to the memory and the processor configured to calculate a first probability of failure of reception of the target signal at the reception point due to collision of the target signal with an interference signal of the plurality of interference signals, calculate a second probability of failure of reception of the target signal at the reception point due to the interference signal of the plurality of interference sources, and output the first probability and the second probability.

    Wireless analysis apparatus and wireless analysis method
    7.
    发明授权
    Wireless analysis apparatus and wireless analysis method 有权

    公开(公告)号：US10158437B2

    公开(公告)日：2018-12-18

    申请号：US15674080

    申请日：2017-08-10

    申请人： FUJITSU LIMITED

    发明人： Akihiro Wada ,  Tatsuya Kikuzuki ,  Teruhisa Ninomiya

    IPC分类号： H04B17/30 ,  H04W16/14 ,  H04W24/08 ,  H04B17/309 ,  H04B17/10

    摘要： There is provided a wireless analysis apparatus including: a memory unit configured to store information of electric power distribution indicating a temporal change of a frequency spectrum; and a computing unit configured to perform a procedure including: generating a plurality of divided regions having predetermined band widths by dividing the electric power distribution, calculating a temporal change amount of electric power with regard to each of the divided regions, detecting a rising portion and a falling portion of the electric power on the basis of the calculated temporal change amount, and identifying an individual signal component in the electric power distribution on the basis of the positions of the rising portion and the falling portion in the divided regions.

    Apparatus and method for managing assignment of time slots
    8.
    发明授权
    Apparatus and method for managing assignment of time slots 有权

    公开(公告)号：US10070439B2

    公开(公告)日：2018-09-04

    申请号：US15445177

    申请日：2017-02-28

    申请人： FUJITSU LIMITED

    发明人： Tatsuya Kikuzuki ,  Shuhei Ohsako

    IPC分类号： H04W72/00 ,  H04W72/04 ,  H04J3/16

    摘要： An apparatus for assigning time slots refers to a hierarchical structure when a predetermined number of time slots in one of a plurality of communication cycles is assigned to a communication apparatus, identifies an associated frame whose use status is to be changed to used by the assignment of the predetermined number of time slots for a group managed in a layer corresponding to the requested communication cycle, and makes determination to assign a frame belonging to a group in which a number of time slots, in the associated frame, whose use status is changed to used is smaller, to the communication apparatus.

    Communication method, communication system, and communication device
    9.
    发明授权
    Communication method, communication system, and communication device 有权

    公开(公告)号：US09706427B2

    公开(公告)日：2017-07-11

    申请号：US14673899

    申请日：2015-03-31

    申请人： FUJITSU LIMITED

    发明人： Tatsuya Kikuzuki

    IPC分类号： H04B5/00 ,  H04W28/02 ,  H04W4/00 ,  H04W74/00 ,  H04W74/08

    CPC分类号： H04W28/0215 ,  H04W4/80 ,  H04W74/006 ,  H04W74/0816

    摘要： A communication method for use in a communication system having a plurality of communication devices includes: a first communication device transmitting within a predefined period a connection request signal requesting a connection with another communication device; a second communication device transmitting a connection permit signal which contains the number of connection request signals received during the predefined period as the number of requesting candidates; the first communication device obtaining a transmission probability defining the probability of signal transmission such that the transmission probability decreases as the number of requesting candidates contained in the connection permit signal received from the second communication device increases; and the first communication device making a decision as to whether or not to transmit a signal out in accordance with the transmission probability at the timing that the signal can be transmitted to the second communication device.

    Communication device and method for packet communications in a contention-free period
    10.
    发明授权
    Communication device and method for packet communications in a contention-free period 有权
    无竞争时段的数据包通信的通信装置和方法

    公开(公告)号：US09414312B2

    公开(公告)日：2016-08-09

    申请号：US14247011

    申请日：2014-04-07

    申请人： FUJITSU LIMITED

    发明人： Tatsuya Kikuzuki

    IPC分类号： H04W52/02 ,  H04W74/00 ,  H04W74/04

    CPC分类号： H04W52/0216 ,  H04W52/0261 ,  H04W74/002 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144

    摘要： A communication device includes a memory, and a processor coupled to the memory and configured to transmit a first packet including a first information within a contention-free period assigned to the communication device, the first packet storing last data to be transmitted in the contention-free period, the first information indicating presence of remaining data to be transmitted in the contention-free period, and, after transmit the first packet, to transmit a second packet including a second information within the contention-free period, the second information indicating absence of remaining data to be transmitted in the contention-free period.

    摘要翻译： 通信设备包括存储器和处理器，其耦合到存储器并且被配置为在分配给通信设备的无竞争周期内发送包括第一信息的第一分组，所述第一分组存储要在所述争用 - 所述第一信息指示在所述无争用时段中要发送的剩余数据的存在，并且在发送所述第一分组之后，在所述无争用时段内发送包括第二信息的第二分组，所述第二信息指示不存在 剩余数据将在无竞争期内发送。