会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Ultrasonic imaging system
    • 超声波成像系统
    • US5327892A
    • 1994-07-12
    • US68172
    • 1993-05-28
    • Yasuhiro NakamuraHisashi AkiyamaSatoshi Akaishi
    • Yasuhiro NakamuraHisashi AkiyamaSatoshi Akaishi
    • A61B8/00A61B8/14G01N29/44G01S7/52
    • G01S7/52046G01S7/52034
    • An ultrasonic imaging system includes an ultrasonic probe for transmitting and receiving an ultrasonic wave, a driver unit for driving the ultrasonic probe, a detector unit for detecting an echo signal received by the ultrasonic probe, a filter unit operative to pass a detection signal from the detector unit and having a plurality of passbands which have respective flat frequency response characteristics and respective gains different from each other, a scanning conversion unit for converting the detection signal, which has passed through the filter unit, to a display signal to be displayed on a television, etc., and a display unit receiving the display signal from the scanning conversion unit to display it as a tomographic image. The filter unit operates to decrease respective amplitudes of high frequency components contained in the detection signal and to reduce a difference in brightness between adjacent scanning lines of the display unit, and flat frequency response characteristics of the filter unit prevent deterioration of frequency response characteristics of the detection signal. This makes it possible to produce a tomographic image of high resolution up to the resolution limit of the scanning lines of the display unit without impairing the image quality.
    • 超声波成像系统包括用于发送和接收超声波的超声波探头,用于驱动超声波探头的驱动器单元,用于检测由超声波探头接收到的回波信号的检测器单元,用于使检测信号从 检测器单元,具有多个通带,它们具有彼此平坦的频率响应特性和各自的增益,扫描转换单元用于将已经通过滤波器单元的检测信号转换成显示信号以显示在 电视等,以及显示单元,其从扫描转换单元接收显示信号,将其显示为断层图像。 滤波器单元操作以减小检测信号中包含的高频分量的各个振幅,并且减小显示单元的相邻扫描线之间的亮度差,并且滤波器单元的平坦频率响应特性防止频率响应特性的劣化 检测信号。 这使得可以产生高分辨率的截面图像,直到显示单元的扫描线的分辨率极限,而不损害图像质量。
    • 2. 发明申请
    • Ultrasonographic device
    • 超声波装置
    • US20070010744A1
    • 2007-01-11
    • US10556277
    • 2004-06-10
    • Yasuhiro NakamuraAkiko UchikawaHisashi AkiyamaMorio NishigakiHideori Yoshitomi
    • Yasuhiro NakamuraAkiko UchikawaHisashi AkiyamaMorio NishigakiHideori Yoshitomi
    • A61B8/00
    • A61B8/00A61B2560/0214B06B1/0215
    • A small ultrasound diagnostic device is provided at a low cost that enables the appropriate control by a single power supply unit so as to give a predetermined transmission power to a driving waveform different for each mode without excess or deficiency and without affecting properties of the driving waveform. The ultrasound diagnostic device includes: an ultrasound generation unit (1) that transmits ultrasound; a waveform generation unit (2) that generates a single pulse or a burst pulse whose duty factor is variable in units of a time that is a period corresponding to a frequency outside a frequency band of the ultrasound generation unit (1) so as to drive the ultrasound generation unit (1); and a single power supply unit (3) that determines an amplitude of a driving waveform generated by the waveform generation unit (2). Thereby, an acoustic power of the transmitted ultrasound can be controlled without making the transmission amplitude variable.
    • 提供了一种低成本的小型超声诊断装置,其能够通过单个电源单元进行适当的控制,从而给每个模式不同的驱动波形赋予预定的发送功率,而不会过多或不足,并且不影响驱动波形的特性 。 超声波诊断装置包括:超声波发生单元(1),其发射超声波; 波形发生单元(2),其产生单个脉冲或突发脉冲,其占空比以与超声波产生单元(1)的频带外的频率相对应的时间的时间单位可变,以驱动 超声波发生单元(1); 以及确定由波形生成单元(2)生成的驱动波形的幅度的单个电源单元(3)。 由此,可以控制发送超声的声功率,而不会使发送幅度变化。
    • 3. 发明授权
    • Ultrasonic continuous wave doppler blood flow-meter
    • 超声波连续波多普勒血流量计
    • US5807259A
    • 1998-09-15
    • US804915
    • 1997-02-24
    • Yasuhiro NakamuraHisashi AkiyamaSueo Baba
    • Yasuhiro NakamuraHisashi AkiyamaSueo Baba
    • G01P5/00A61B8/06G01P5/24A61B8/00
    • G01P5/242
    • An ultrasonic continuous wave doppler blood flow-meter deflects an ultrasonic continuous wave to an arbitrary angle and transmits it into an organism, thereby measuring a blood flow speed of the organism. Two continuous sine wave signals of different phases and a plurality of sets of pairs of coefficients are generated. One of each of the pairs of coefficients is multiplied to one of the two sine wave signals. The other one of each of the pairs of coefficients is multiplied to the other one of the two sine wave coefficients. After that, two sine wave signals after the multiplication are added, so that a plurality of synthesis sine wave signals are generated. When a plurality of micro vibrators are driven by the plurality of synthesis sine wave signals, the ultrasonic continuous wave is deflected to an arbitrary angle and is transmitted into the organism.
    • 超声波连续波多普勒血流计将超声波连续波偏转到任意角度并将其传输到生物体中,从而测量生物体的血流速度。 产生不同相位的两个连续正弦波信号和多组系数对。 每对系数中的一个被乘以两个正弦波信号中的一个。 每对系数中的另一个被乘以两个正弦波系数中的另一个。 之后,加上乘法后的两个正弦波信号,从而产生多个合成正弦波信号。 当多个微振动器由多个合成正弦波信号驱动时,超声波连续波被偏转到任意角度并被传送到生物体中。
    • 4. 发明授权
    • Ultrasound diagnostic device
    • 超声诊断装置
    • US07566304B2
    • 2009-07-28
    • US10556277
    • 2004-06-10
    • Yasuhiro NakamuraAkiko UchikawaHisashi AkiyamaMorio NishigakiHidenori Yoshitomi
    • Yasuhiro NakamuraAkiko UchikawaHisashi AkiyamaMorio NishigakiHidenori Yoshitomi
    • A61B8/00
    • A61B8/00A61B2560/0214B06B1/0215
    • A small ultrasound diagnostic device is provided at a low cost that enables the appropriate control by a single power supply unit so as to give a predetermined transmission power to a driving waveform different for each mode without excess or deficiency and without affecting properties of the driving waveform. The ultrasound diagnostic device includes: an ultrasound generation unit (1) that transmits ultrasound; a waveform generation unit (2) that generates a single pulse or a burst pulse whose duty factor is variable in units of a time that is a period corresponding to a frequency outside a frequency band of the ultrasound generation unit (1) so as to drive the ultrasound generation unit (1); and a single power supply unit (3) that determines an amplitude of a driving waveform generated by the waveform generation unit (2). Thereby, an acoustic power of the transmitted ultrasound can be controlled without making the transmission amplitude variable.
    • 提供了一种低成本的小型超声诊断装置,其能够通过单个电源单元进行适当的控制,从而给每个模式不同的驱动波形赋予预定的发送功率,而不会过多或不足,并且不影响驱动波形的特性 。 超声波诊断装置包括:超声波发生单元(1),其发射超声波; 波形发生单元(2),其产生单个脉冲或突发脉冲,其占空比以与超声波产生单元(1)的频带外的频率相对应的时间的时间单位可变,以驱动 超声波发生单元(1); 以及确定由波形生成单元(2)生成的驱动波形的幅度的单个电源单元(3)。 由此,可以控制发送超声的声功率,而不会使发送幅度变化。
    • 7. 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。
    • 8. 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。
    • 10. 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。