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1. 发明申请

US20140307604A1 COMMUNICATION DEVICE AND COMMUNICATION METHOD 有权
标题翻译：通信设备和通信方法
公开(公告)号：US20140307604A1
公开(公告)日：2014-10-16
申请号：US14247011
申请日：2014-04-07
申请人： FUJITSU LIMITED
发明人： Tatsuya KIKUZUKI
IPC分类号： H04W72/02 , H04W52/02
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。

2. 发明申请

US20140064197A1 BASE STATION APPARATUS, RADIO COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 审中-公开
标题翻译：基站装置，无线电通信系统和通信方法
公开(公告)号：US20140064197A1
公开(公告)日：2014-03-06
申请号：US13892549
申请日：2013-05-13
申请人： FUJITSU LIMITED
发明人： Tatsuya KIKUZUKI
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W36/20 , H04W84/18
摘要： A base station apparatus that communicates with a radio communication terminal in a radio communication system, includes: processor configured to detect interference between the radio communication system and another radio communication system, and determine whether or not to switch a radio channel used to communicate with the radio communication terminal when the interference is detected; and a channel switching unit that switches the radio channel when the processor determines to switch the radio channel, and does not switch the radio channel when the processor determines not to switch the radio channel.
摘要翻译：一种与无线通信系统中的无线通信终端进行通信的基站装置，包括：被配置为检测所述无线通信系统与另一无线通信系统之间的干扰的处理器，判断是否切换与所述无线通信系统通信的无线信道检测到干扰时的无线通信终端; 以及当处理器确定切换无线电信道时切换无线电信道的信道切换单元，并且当处理器确定不切换无线电信道时不切换无线电信道。

3. 发明申请

US20200178163A1 INFORMATION PROCESSING APPARATUS, ARRANGEMENT COMPUTING METHOD FOR WIRELESS ACCESS POINTS, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20200178163A1
公开(公告)日：2020-06-04
申请号：US16672144
申请日：2019-11-01
申请人： FUJITSU LIMITED
发明人： Tatsuya KIKUZUKI
IPC分类号： H04W48/16 , H04W48/20 , H04W88/08 , H04W88/06 , H04W48/08
摘要： An information processing apparatus includes a memory, circuitry coupled to the memory, the circuitry configured to determine whether or not a binary search method is used by using a predetermined reference to determine the number of wireless access points, and search for a minimum number of access points satisfying communication requirements in a binary search loop in a case where it is determined that the binary search method is used and search for the minimum number of access points satisfying the communication requirements by decreasing the number of access points by a predetermined number of units at a time in a case where it is not determined that the binary search method is used to search for an arrangement of the wireless access points with respect to the searched minimum number of access points.

4. 发明申请

US20190326947A1 SPECTRAL ANALYSIS APPARATUS AND SPECTRAL ANALYSIS METHOD 审中-公开
公开(公告)号：US20190326947A1
公开(公告)日：2019-10-24
申请号：US16357042
申请日：2019-03-18
申请人： FUJITSU LIMITED
发明人： Tatsuya KIKUZUKI
IPC分类号： H04B1/707 , G06F17/14
摘要： A non-transitory computer-readable recording medium storing a program that causes a computer to execute a procedure to determine a feature of each standard of a wireless environment in which radio signals including a CSS signal chirp-modulated co-exist, the procedure includes obtaining a spectrum by subjecting each radio signal to fast Fourier transform with predetermined frequency resolution and time resolution capable of visualizing a feature of the CSS signal, coarsening the frequency resolution of the spectrum by adopting an effective value in a specific frequency domain, calculating a duration of the radio signal, based on the coarsened frequency resolution of the spectrum, coarsening the time resolution of the spectrum by adopting an effective value in the duration, calculating a bandwidth of the radio signal, based on the coarsened time resolution of the spectrum, and determining the feature of the radio signal of each standard, based on the duration and the bandwidth.

5. 发明公开

US20240179097A1 IMAGE TRANSMISSION CONTROL DEVICE, METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAM 审中-公开
公开(公告)号：US20240179097A1
公开(公告)日：2024-05-30
申请号：US18433731
申请日：2024-02-06
申请人： FUJITSU LIMITED
发明人： Tokuro KUBO , Akihiro WADA , Tatsuya KIKUZUKI , Kotaro SHIIZAKI , Kaoru YOKOO , Teruhisa NINOMIYA
IPC分类号： H04L47/25 , H04L41/147 , H04L47/70
CPC分类号： H04L47/25 , H04L41/147 , H04L47/823
摘要： A device stores relationship information that indicates a correspondence relationship between a received signal strength indicator at a time of reception of a signal from a wireless transmission path and an available bandwidth of data transmission in the wireless transmission path; acquires a measurement value of the received signal strength indicator during communication with an image transmission device that transmits image data via a communication path; estimates a first available bandwidth in the wireless transmission path based on the measurement value and the relationship information; generates control information for adjustment of a transmission rate of image data in the image transmission device based on the first available bandwidth; transmits the control information to the image transmission device; measure a second available bandwidth in the wireless transmission path; and optimizes the correspondence relationship based on a comparison result between the first available bandwidth and the second available bandwidth.

6. 发明申请

US20130142092A1 RADIO COMMUNICATION TERMINAL, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD 有权
标题翻译：无线电通信终端，无线电通信系统和无线电通信方法
公开(公告)号：US20130142092A1
公开(公告)日：2013-06-06
申请号：US13685409
申请日：2012-11-26
申请人： Fujitsu Limited
发明人： Tatsuya KIKUZUKI
IPC分类号： H04W40/34
CPC分类号： H04W40/34 , H04W40/248
摘要： A radio communication terminal includes an acquisition unit configured to acquire property information indicating a property that is used when a data communication route, on which data communication is performed with other radio communication terminals, is determined, a calculator configured to calculate variation of the property by using the acquired property information, and a controller configured to change a determination reference for whether to change the data communication route in response to the calculated variation of the property.
摘要翻译：无线电通信终端包括：获取单元，被配置为获取表示在与其他无线电通信终端进行数据通信的数据通信路由被确定时使用的属性的属性信息;计算器，被配置为计算属性的变化，使用所获取的属性信息，以及控制器，被配置为响应于所计算的属性的变化而改变用于是否改变数据通信路由的确定参考。

7. 发明公开

US20230283804A1 COMPUTER-READABLE RECORDING MEDIUM STORING TRANSMISSION PROGRAM, TRANSMISSION APPARATUS, AND TRANSMISSION METHOD 审中-公开
公开(公告)号：US20230283804A1
公开(公告)日：2023-09-07
申请号：US18068835
申请日：2022-12-20
申请人： Fujitsu Limited
发明人： Kotaro SHIIZAKI , Akihiro WADA , Tatsuya KIKUZUKI , Teruhisa NINOMIYA , Kaoru YOKOO , KOHJI YAMADA
IPC分类号： H04N19/593 , H04N19/177
CPC分类号： H04N19/593 , H04N19/177
摘要： A non-transitory computer-readable recording medium storing a transmission program causing a computer of a first transmission apparatus to execute a procedure, the procedure includes detecting a collision between a transmission timing of an intra-coded video frame in first video data transmitted from the first transmission apparatus and a transmission timing of an intra-coded video frame in second video data transmitted from a second transmission apparatus, changing, when the collision is detected at a first time, a frame type of the first video data to one of a forward predictive coded video frame and a bi-directional predictive coded video frame, and transmitting the first video data of which the frame type is changed, at a second time at which the intra-coded video frame in the first video data is scheduled to be transmitted.

8. 发明申请

US20180083721A1 WIRELESS ANALYSIS APPARATUS AND WIRELESS ANALYSIS METHOD 审中-公开
公开(公告)号：US20180083721A1
公开(公告)日：2018-03-22
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： H04B17/309 , H04B17/10 , H04W16/14
CPC分类号： H04B17/309 , H04B17/102 , H04W16/14 , H04W24/08
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.

9. 发明申请

US20140313903A1 COMMUNICATION APPARATUS, WIRELESS COMMUNICATION NETWORK SYSTEM, AND COMMUNICATION METHOD 有权
标题翻译：通信设备，无线通信网络系统和通信方法
公开(公告)号：US20140313903A1
公开(公告)日：2014-10-23
申请号：US14203159
申请日：2014-03-10
申请人： FUJITSU LIMITED
发明人： Tatsuya KIKUZUKI
IPC分类号： H04L12/803
CPC分类号： H04L47/122 , H04L45/121 , H04L45/24 , H04L45/302 , H04L47/14
摘要： A communication apparatus includes: a judgment section configured to judge a request for delay guarantee for data transmission; a route selection section configured to: select a first route including a mean delay time meeting a first condition, from routes available between the communication apparatus and a second communication apparatus which are in a network of wireless communication, when the request is a first request; and select a second route including a probability of successful data transmission for a given number of transmissions meeting a second condition, from the routes, when the request is a second request; and a transmission section configured to transmit the data to one of the first route and the second route.
摘要翻译：一种通信装置，包括：判断部，判定数据发送的延迟保证请求; 路线选择部，被配置为：当所述请求是第一请求时，从所述通信装置和处于无线通信网络的第二通信装置之间的路径中选择包含满足第一条件的平均延迟时间的第一路线; 并且当所述请求是第二请求时，从所述路由中选择包括对于满足第二条件的给定数量的传输的成功数据传输的概率的第二路由; 以及发送部，被配置为将数据发送到第一路线和第二路径中的一个。

10. 发明申请

US20140133290A1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：无线通信系统和无线通信设备
公开(公告)号：US20140133290A1
公开(公告)日：2014-05-15
申请号：US14159017
申请日：2014-01-20
申请人： FUJITSU LIMITED
发明人： Kaoru YOKOO , Yoji OHASHI , Tatsuya KIKUZUKI , Ichirou IDA , Kazumi KASAI
IPC分类号： H04W40/14
CPC分类号： H04W40/14 , A61B5/0028 , G06F19/3418 , H04B7/0802 , H04B7/12 , H04L1/04 , H04L1/08 , H04L1/1887 , H04L1/22 , H04L12/00 , H04L12/403 , H04L45/22 , H04L45/28 , H04L69/40 , H04W24/00 , H04W36/30 , H04W76/15 , H04W76/19
摘要： A wireless communication system includes first and second wireless communication apparatuses. The first wireless communication apparatus includes a plurality of communication units that perform communication in different frequency bands. The plurality of communication units transmits the same control signal and data in the different frequency bands to keep allocation of communication slots for the second wireless communication apparatus on a plurality of paths. When detecting a communication failure while connecting to and communicating with one communication unit through one path, the second wireless communication apparatus switches to another communication unit and continues the communication through another path.
摘要翻译：无线通信系统包括第一和第二无线通信设备。第一无线通信装置包括执行不同频带的通信的多个通信单元。多个通信单元在不同频带中发送相同的控制信号和数据，以便在多个路径上保持第二无线通信装置的通信时隙的分配。当在通过一个路径连接到一个通信单元并且与一个通信单元通信时检测到通信故障时，第二无线通信设备切换到另一个通信单元并且通过另一个路径继续通信。

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