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29 条记录 (耗时 0.039 秒)

    Pneumatically operated screw driver
    11.
    发明授权
    Pneumatically operated screw driver 失效
    气动螺丝刀

    公开(公告)号：US6026713A

    公开(公告)日：2000-02-22

    申请号：US106713

    申请日：1998-06-29

    申请人： Yasuki Ohmori ,  Yasuo Sasaki ,  Mitsuo Ogura ,  Michio Wakabayashi ,  Akira Uno ,  Hiroyasu Ishikawa

    发明人： Yasuki Ohmori ,  Yasuo Sasaki ,  Mitsuo Ogura ,  Michio Wakabayashi ,  Akira Uno ,  Hiroyasu Ishikawa

    IPC分类号： B25B21/02 ,  B25B17/00

    CPC分类号： B25B21/023

    摘要： An air motor has a rotor rotatable in response to the pressure of pressurized air. A cylindrical rotary member is connected to the air motor for causing a rotation in synchronism with the rotation of the rotor. A rotary slider is slidable in the axial direction along the inner cylindrical wall of the rotary member. A rotational force transmitting mechanism is provided for transmitting the rotation of the rotary member to the rotary slider. A shaft has one end fixed to the rotary slider and the other end equipped with a piston and a driver bit holder. The rotational and axial motion of the rotary slider is transmitted to a driver bit held in the driver bit holder. And, a cylinder guides the axial slide movement of the piston responsive to the pressure of pressurized air applied on a pressure-receiving surface of the piston.

    摘要翻译： 空气马达具有响应于加压空气的压力而可旋转的转子。 圆柱形旋转构件连接到气动马达，用于与转子的旋转同步地旋转。 旋转滑块可沿旋转构件的内圆筒壁沿轴向滑动。 旋转力传递机构用于将旋转构件的旋转传递到旋转滑块。 轴具有固定到旋转滑块的一端，另一端配备有活塞和驾驶员座架。 旋转滑动件的旋转和轴向运动被传递到保持在驱动器钻头保持器中的驱动器钻头。 并且，气缸响应于施加在活塞的压力接收表面上的加压空气的压力来引导活塞的轴向滑动运动。

    Spread spectrum communications system
    12.
    发明授权
    Spread spectrum communications system 失效
    扩频通信系统

    公开(公告)号：US5974082A

    公开(公告)日：1999-10-26

    申请号：US958094

    申请日：1997-10-27

    申请人： Hiroyasu Ishikawa ,  Hideyuki Shinonaga ,  Hideo Kobayashi

    发明人： Hiroyasu Ishikawa ,  Hideyuki Shinonaga ,  Hideo Kobayashi

    IPC分类号： H04B1/707 ,  H04B7/26 ,  H04J13/16 ,  H04L5/06 ,  H04K1/00

    CPC分类号： H04J13/00 ,  H04B7/2618 ,  H04L5/06

    摘要： A spread spectrum communications system includes at least one communication station for transmitting a plurality of digital information data sequences via a plurality of communication channels by using the same PN code sequence. The communication station spreads the respective digital information data sequences by the PN code sequence to provide spread spectrum signals, modulates the spread spectrum signals by respective carriers having different frequencies from each other to provide modulated signals, and then transmits the modulated signals via the communication channels respectively. A frequency interval of the carrier frequencies is determined to an even-numbered multiple of a symbol rate of the transmitted digital information data sequences.

    摘要翻译： 扩展频谱通信系统包括至少一个通信站，用于通过使用相同的PN码序列经由多个通信信道发送多个数字信息数据序列。 通信站通过PN码序列扩展各个数字信息数据序列，以提供扩频信号，通过具有不同频率的各个载波调制扩频信号以提供调制信号，然后经由通信信道发送调制信号 分别。 载波频率的频率间隔被确定为发送的数字信息数据序列的符号率的偶数倍。

    Method of compensating phase shift keying frequency offset
    13.
    发明授权
    Method of compensating phase shift keying frequency offset 失效
    补偿相移键控频偏的方法

    公开(公告)号：US5588026A

    公开(公告)日：1996-12-24

    申请号：US361707

    申请日：1994-12-22

    申请人： Hiroyasu Ishikawa ,  Hideo Kobayashi

    发明人： Hiroyasu Ishikawa ,  Hideo Kobayashi

    IPC分类号： H03J7/02 ,  H04L27/233 ,  H03D3/00

    CPC分类号： H03J7/02 ,  H04L27/2332

    摘要： A frequency offset compensation method has the steps of raising the detected signal to the M-th power to remove a modulation factor from the received signal, and accumulating the M-th power signals for N (N is an integer) symbols to derive a phase component of the accumulated M-th power signals. Then, the derived phase component is divided into M so as to obtain an estimation value with respect to phase shift due to frequency offset which represents frequency deviation from a true carrier frequency contained in the received signal, and the received signal is multiplied by the obtained estimation value in a form of conjugate complex number to remove the phase shift due to the frequency offset from the received signal.

    摘要翻译： 频率偏移补偿方法具有以下步骤：将检测到的信号提升到M次方，以从接收信号中去除调制因子，并且累积第N个功率信号N（N是整数）符号以导出相位 积累的M次方信号的分量。 然后，将导出的相位分量分割为M，以获得由于频率偏移而导致的相移的估计值，其表示与包含在接收信号中的真实载波频率的偏差，并且接收信号乘以所获得的相位分量 以共轭复数形式的估计值，以消除由于从接收信号的频率偏移引起的相移。

    LIGHT-DIFFUSING SHEET AND BACKLIGHT DEVICE USING SAME
    15.
    发明申请
    LIGHT-DIFFUSING SHEET AND BACKLIGHT DEVICE USING SAME 审中-公开
    使用相同的光扩散片和背光装置

    公开(公告)号：US20100265739A1

    公开(公告)日：2010-10-21

    申请号：US12809036

    申请日：2009-01-22

    申请人： Yohei Funabashi ,  Hiroyasu Ishikawa ,  Kenji Fukui

    发明人： Yohei Funabashi ,  Hiroyasu Ishikawa ,  Kenji Fukui

    IPC分类号： F21V8/00 ,  G02B5/02 ,  G09F13/04

    CPC分类号： G02B5/0278 ,  G02B5/0221 ,  G02B5/0242 ,  G02F1/133606 ,  G02F1/133611 ,  G02F2201/50

    摘要： A light-diffusing sheet which can prevent generation of scratches on the surface of the light-diffusing sheet or a surface of another member contacting with the light-diffusing sheet at the time of being used as a constituent member of a backlight unit of a liquid crystal display or transportation thereof, and also can exhibit the light-diffusing performance is provided. The light-diffusing sheet of the present invention has a light-diffusing layer comprising microparticles, wherein the light-diffusing layer has a surface showing a maximum peak height (Rp) of 8.0 μm or higher in a roughness curve determined by three-dimensional surface profilometry, and mean particle size (φ) of the microparticles contained in the light-diffusing layer and thickness (d) of the light-diffusing layer satisfy the relationship: φ/d≦0.7.

    摘要翻译： 在作为液体的背光单元的构成部件使用时，能够防止在光漫射片的表面上产生划痕或与光扩散片接触的其他构件的表面的光漫射片 晶体显示或其输送，并且还可以表现出光扩散性能。 本发明的光漫射片具有包含微粒的光漫射层，其中，光漫射层具有由三维表面确定的粗糙度曲线表示最大峰高（Rp）为8.0μm以上的表面 光散射层中包含的微粒的平均粒度（＆phgr）和光漫射层的厚度（d）满足以下关系：＆phgr; / d＆nlE; 0.7。

    Frequency error correction device and OFDM receiver with the device
    16.
    发明授权
    Frequency error correction device and OFDM receiver with the device 失效
    频率误差校正装置和OFDM接收机

    公开(公告)号：US07336742B2

    公开(公告)日：2008-02-26

    申请号：US10424070

    申请日：2003-04-28

    申请人： Takeo Ohseki ,  Masato Furudate ,  Yoshio Kunisawa ,  Hiroyasu Ishikawa ,  Hideyuki Shinonaga

    发明人： Takeo Ohseki ,  Masato Furudate ,  Yoshio Kunisawa ,  Hiroyasu Ishikawa ,  Hideyuki Shinonaga

    IPC分类号： H04L27/06

    CPC分类号： H04L27/2657 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/2684

    摘要： A frequency error correction device for an OFDM receiver is proposed. The receiver receives an OFDM signal with a preamble section and a payload section including pilot carriers. The frequency error correction device includes a first frequency correction unit for correcting a relative phase error in a predetermined period of time based upon a frequency error in the preamble section of the OFDM signal in time domain, and a second frequency correction unit for correcting a remaining phase error in every predetermined period of time based upon the pilot carriers of the OFDM signal in frequency domain.

    摘要翻译： 提出了一种用于OFDM接收机的频率纠错装置。 接收机接收具有前导码部分和包括导频载波的有效载荷部分的OFDM信号。 频率误差校正装置包括：第一频率校正单元，用于基于时域中的OFDM信号的前导码部分中的频率误差校正预定时间段中的相对相位误差;以及第二频率校正单元，用于校正剩余的 基于频域中的OFDM信号的导频载波，每个预定时间段的相位误差。

    Method for manufacturing nitride film including high-resistivity GaN layer and epitaxial substrate manufactured by the method
    17.
    发明授权
    Method for manufacturing nitride film including high-resistivity GaN layer and epitaxial substrate manufactured by the method 有权
    用于制造包括通过该方法制造的高电阻率GaN层和外延衬底的氮化物膜的方法

    公开(公告)号：US07135347B2

    公开(公告)日：2006-11-14

    申请号：US10873767

    申请日：2004-06-22

    申请人： Makoto Miyoshi ,  Masahiro Sakai ,  Mitsuhiro Tanaka ,  Takashi Egawa ,  Hiroyasu Ishikawa

    发明人： Makoto Miyoshi ,  Masahiro Sakai ,  Mitsuhiro Tanaka ,  Takashi Egawa ,  Hiroyasu Ishikawa

    IPC分类号： H01L21/00

    CPC分类号： C30B29/40 ,  C30B25/02 ,  H01L21/0242 ,  H01L21/02458 ,  H01L21/02502 ,  H01L21/0254 ,  H01L21/0262

    摘要： A method for manufacturing a nitride film including a high-resistivity GaN layer includes a step of allowing a Group-III source gas containing an organic metal compound, a Group-V source gas containing ammonia, a carrier gas for the Group-III source gas, and a carrier gas for the Group-V source gas to flow over a predetermined monocrystalline wafer maintained at 1,000° C. or more and also includes a step of epitaxially growing a nitride film, including a GaN layer, on the monocrystalline wafer by a vapor phase reaction of the source gases. At least one of the carrier gases contains nitrogen while the wafer temperature is being increased before the reaction is carried out. At least one of the carrier gases contains hydrogen and nitrogen and has a total hydrogen and nitrogen content of 90 percent by volume or more in at least one part of the epitaxially growing step.

    摘要翻译： 制造包括高电阻率GaN层的氮化物膜的方法包括以下步骤：允许含有有机金属化合物的III族源气体，含有氨的V族气体，用于III族源气体的载气 ，并且用于V族源气体的载气在保持在1000℃或更高的预定单晶晶片上流动，并且还包括在单晶晶片上外延生长包括GaN层的氮化物膜的步骤 源气体的气相反应。 在反应进行之前，至少一种载气含有氮，同时晶片温度升高。 至少一种载气含有氢和氮，并且在外延生长步骤的至少一部分中，总氢和氮的总含量为90体积％以上。

    Method for determining position of mobile earth station in satellite communication system
    18.
    发明授权
    Method for determining position of mobile earth station in satellite communication system 失效

    公开(公告)号：US5969669A

    公开(公告)日：1999-10-19

    申请号：US566737

    申请日：1995-12-04

    申请人： Hiroyasu Ishikawa ,  Hideyuki Shinonaga ,  Hideo Kobayashi

    发明人： Hiroyasu Ishikawa ,  Hideyuki Shinonaga ,  Hideo Kobayashi

    IPC分类号： G01S5/12 ,  H04B7/15 ,  H04B7/185 ,  H04B7/195 ,  H04Q7/34

    CPC分类号： G01S5/12 ,  H04B7/18547

    摘要： A method is disclosed for uniquely determining the position of a mobile earth station in a mobile satellite communication system which employs a non-geostationary satellite with a multi-spot beams. A given point of a preknown position on the earth surface is defined as the center coordinate of a three-dimensional coordinate axis, information on the measured distance and Doppler shift amount between a mobile earth station of an unknown position and a non-geostationary satellite is used to repeat the estimation of the position of the mobile earth station a plurality of times, thereby obtaining the position of the earth station with high accuracy. Furthermore, by observing the estimated positions of the mobile earth station obtained as a plurality of solutions at proper time intervals, comparing with one another the movements of the respective estimated positions occurring with the local time proceeds and selecting the estimated position of the minimum movement, the estimated position of the mobile earth station is uniquely determined relative to its true position.