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    • 2. 发明申请
    • PORTABLE RADIO
    • 便携式无线电
    • US20120119958A1
    • 2012-05-17
    • US13383571
    • 2010-03-03
    • Hiroyuki UejimaYoshio KoyanagiNoriyoshi SatoDaigo ImanoYasuhiro Nakamura
    • Hiroyuki UejimaYoshio KoyanagiNoriyoshi SatoDaigo ImanoYasuhiro Nakamura
    • H01Q1/24
    • H01Q1/04G06F1/1626G06F1/1656H01Q1/002H01Q1/243H04M1/0277H04M1/18
    • There is provided a portable radio capable of facilitating assuring water-tightness of a neighboring area of power feed sections and assuring a stable state of connection between a conductor, such as an antenna, and a circuit board.A portable radio includes an annular resilient member 13 sandwiched between a first case 11 and a second case 12; a flexible printed board 14 that is formed integrally with the annular resilient member 13 and that extends toward an area surrounded by the annular resilient member 13; an antenna section 15 and a first power feed section 19 that are provided on the flexible printed board 14; a circuit board 17 set in the area surrounded by the annular resilient member 13; an electric circuit section 18 provided on the circuit board 17; and a second power feed section 20 electrically connected to the electric circuit section 18. The first power feed section 19 opposes the annular resilient member 13, and an inter-space dimension of an area sandwiched between the flexible printed board 14 and a rib 12b is smaller than a thickness dimension d2 of a part of the annular resilient member 13. that is to be sandwiched in the area, the thickness dimension being achieved under no load conditions, with respect to a direction where the annular resilient member is sandwiched.
    • 提供了便携式无线电装置,其能够有助于确保馈电部分的相邻区域的水密性,并且确保诸如天线的导体与电路板之间的稳定的连接状态。 便携式收音机包括夹在第一壳体11和第二壳体12之间的环形弹性构件13; 柔性印刷板14,其与环形弹性构件13一体地形成并且朝向由环形弹性构件13包围的区域延伸; 设置在柔性印刷电路板14上的天线部分15和第一供电部分19; 设置在由环形弹性构件13包围的区域中的电路板17; 设置在电路基板17上的电路部18; 以及与电路部分18电连接的第二馈电部分20.第一馈电部分19与环形弹性部件13相对,夹在柔性印刷电路板14和肋12b之间的区域的空间间距是 小于环状弹性构件13的一部分的厚度尺寸d2,该环形弹性构件13的一部分相对于环形弹性构件被夹持的方向被夹在该区域中,在空载条件下实现厚度尺寸。
    • 5. 发明授权
    • Communication system, base station and mobile station used in the communication system, and base station switching method
    • 通信系统中使用的通信系统,基站和移动台以及基站交换方式
    • US08493930B2
    • 2013-07-23
    • US12447425
    • 2007-10-25
    • Hironobu TanigawaYasuhiro NakamuraNobuaki Takamatsu
    • Hironobu TanigawaYasuhiro NakamuraNobuaki Takamatsu
    • H04W36/00
    • H04L5/0053H04W36/0083
    • There are provided an OFDMA communication system capable of reducing a time necessary for a handover without releasing a wireless communication with a base station as a handover source to search base stations, a base station and a mobile station used in the communication system, and a base station switching method.In an OFDMA communication system in which data communication is performed between a plurality of base stations 10 and a plurality of mobile stations, each base station 10 includes subchannel assignment setting unit 15-1 which sets assignment of subchannels including a first subchannel and a second subchannel for each of the mobile stations, the first subchannel including information indicating usable or unusable subchannels of the respective mobile stations and being assigned to the respective mobile stations, the second subchannel including actually-used data. When a request for switching the first subchannel is received from one of the mobile stations 20, the second subchannel is collected and assigned to a same slot as the first subchannel assigned to the one of the mobile stations 20.
    • 提供了OFDMA通信系统,其能够减少切换所需的时间,而不会释放与作为切换源的基站的无线通信,以搜索在通信系统中使用的基站,基站和移动站,以及基站 站切换方式。 在多个基站10和多个移动台之间进行数据通信的OFDMA通信系统中,各基站10包括子信道分配设定部15-1,其设定包含第1子信道和第2子信道的子信道的分配 对于每个移动站,第一子信道包括指示各个移动站的可用或不可用的子信道并被分配给各个移动站的信息,第二子信道包括实际使用的数据。 当从移动站20之一接收到切换第一子信道的请求时,收集第二子信道并将其分配给与分配给移动站20之一的第一子信道相同的时隙。
    • 6. 发明授权
    • Ultrasonic diagnostic apparatus
    • 超声波诊断仪
    • US08403853B2
    • 2013-03-26
    • US11569828
    • 2005-06-01
    • Yasuhiro Nakamura
    • Yasuhiro Nakamura
    • A61B8/00
    • G01S7/52025G01S7/52077
    • A technology for providing a small and inexpensive ultrasonic diagnostic apparatus which does not need a high resolution A/D converter, and has high sensitivity and a wide dynamic range is disclosed. According to the technology, an ultrasonic transducer unit 1 for transmitting and receiving ultrasonic wave is driven by a drive circuit 2 for generating a pulse signal. An echo signal received by the ultrasonic transducer unit is inputted to an analog low frequency band attenuator 3 which attenuates a low frequency band component. An output signal of the analog low frequency band attenuator is inputted to an A/D converter 4 which converts the signal to a digital signal. The converted and outputted digital signal is inputted to a digital correction filter 5 which intensifies the low frequency band component attenuated by the analog low frequency band attenuator and outputs a digital signal having a frequency distribution almost equal to that of the echo signal received by the ultrasonic transducer unit.
    • 公开了一种用于提供不需要高分辨率A / D转换器并且具有高灵敏度和宽动态范围的小型且便宜的超声波诊断装置的技术。 根据该技术,用于发送和接收超声波的超声波换能器单元1由用于产生脉冲信号的驱动电路2驱动。 由超声波换能器单元接收到的回波信号被输入到衰减低频带分量的模拟低频带衰减器3。 模拟低频带衰减器的输出信号被输入到将该信号转换为数字信号的A / D转换器4。 转换并输出的数字信号被输入到数字校正滤波器5,数字校正滤波器5强化由模拟低频带衰减器衰减的低频带分量,并输出具有与由超声波接收的回波信号的频率分布几乎相等的频率分布的数字信号 传感器单元。
    • 8. 发明申请
    • Memory System
    • 内存系统
    • US20120176842A1
    • 2012-07-12
    • US13270224
    • 2011-10-10
    • SHIGEMASA SHIOTAHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • SHIGEMASA SHIOTAHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • G11C16/04
    • G06F12/0246G06F13/161G06F13/1673G06F2212/7206G11C7/1006
    • The present invention provides a memory system which contributes to improvement in efficiency of a data process accompanying a memory access. A memory system has a rewritable nonvolatile memory, a buffer memory, and a controller. The controller controls, in response to an access request from an external apparatus, first data transfer between the controller and the external apparatus, second data transfer between the controller and the nonvolatile memory, and third data transfer between the controller and the buffer memory, controls transfer from the controller to the buffer memory in the third data transfer and transfer from the buffer memory to the controller in a time sharing manner, and enables the first data transfer or the second data transfer to be performed in parallel with the transfer carried out in the time sharing manner.
    • 本发明提供了一种有助于提高伴随存储器访问的数据处理的效率的存储器系统。 存储器系统具有可重写非易失性存储器,缓冲存储器和控制器。 控制器响应于来自外部设备的访问请求控制控制器和外部设备之间的第一数据传输,控制器和非易失性存储器之间的第二数据传输以及控制器和缓冲存储器之间的第三数据传送,控制 在第三次数据传送中从控制器传送到缓冲存储器,并以时间共享的方式从缓冲存储器传输到控制器,并且能够与第一次数据传送或第二数据传输并行执行 时间分享的方式。
    • 9. 发明授权
    • Wireless base station device and method for controlling wireless base station device
    • 无线基站装置及无线基站装置的控制方法
    • US07966028B2
    • 2011-06-21
    • US12094592
    • 2006-11-24
    • Yasuhiro Nakamura
    • Yasuhiro Nakamura
    • H04B7/00
    • H04L27/0008H04W28/18H04W72/085
    • The throughput of communication is enhanced in a wireless base station device communicating with each of a plurality of terminal devices according to a modulation scheme selected from a plurality of modulation schemes by using any one channel of a plurality of channels. The wireless base station device communicating with each of a plurality of terminal devices according to a modulation scheme selected from a plurality of modulation schemes by using any one channel of a plurality of channels includes a modulation scheme selection unit (42) for selecting a modulation scheme that can be employed in a channel for at least some of unused channels among the plurality of channels; a communication speed comparison unit (44) for comparing a communication speed of the selected modulation scheme, and a communication speed of a modulation scheme of a currently communicating channel; and a channel switching unit (46) for switching the any one channel of the plurality of channels for performing communication from the currently communicating channel to any one channel of the at least some of unused channels according to the comparison results.
    • 根据通过使用多个信道中的任何一个信道从多个调制方案中选择的调制方案,在与多个终端设备中的每一个通信的无线基站设备中增强通信吞吐量。 根据通过使用多个信道中的任一个信道从多个调制方案中选出的调制方式与多个终端装置中的每一个通信的无线基站装置包括:调制方式选择部(42),用于选择调制方式 可以在多个信道中用于至少一些未使用信道的信道中使用; 通信速度比较单元,用于比较所选调制方案的通信速度和当前通信信道的调制方案的通信速度; 以及根据比较结果,用于将用于执行通信的多个信道中的任何一个信道从当前通信信道切换到所述至少一些未使用信道中的任何一个信道的信道切换单元(46)。