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    • 1. 发明授权
    • Transmitter, RF transmitter signal processor and method for operation of transmitter
    • 发射机,射频发射机信号处理器和发射机操作方法
    • US08150342B2
    • 2012-04-03
    • US12109426
    • 2008-04-25
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • H04B1/04H01Q11/12
    • H04W52/52H03G3/3047H04L27/361
    • An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
    • 调整RF IC的内部操作,使得RF发射器信号的电平基本上停止上升,或者在RF发射器信号的上升过程中下降。 该调整通过斜坡调整数据启用,最后4个符号包含在完成斜坡后发送的实际传输数据的前导数据先例中。 从基带LSI提供斜升调整数据和实际发送数据。 RF发射机信号包含根据EDGE系统的相位和幅度调制分量。 RF IC包括相位和幅度调制控制环路PM LP和AM LP。 通过根据斜坡信息控制AM LP中包括的第一可变放大器MVGA的增益来执行RF功率放大器PA1和PA2的上升。 因此,在RF功率放大器的RF发射器信号的斜坡上升期间,有害辐射的电平被降低。
    • 2. 发明授权
    • Image display apparatus
    • 图像显示装置
    • US08080943B2
    • 2011-12-20
    • US12494371
    • 2009-06-30
    • Masahiko Yamamoto
    • Masahiko Yamamoto
    • G09G3/10
    • G09G3/22G09G2320/0233G09G2320/029G09G2320/043G09G2330/02
    • An image display apparatus of a present invention has a rear plate having a plurality of electron-emitting devices, a face plate having a light-emitting member, a high-voltage power source which applies a high voltage to the light-emitting member, a current detecting unit which detects an emission current from the electron-emitting devices, and a bypass capacitor. One end of the bypass capacitor is connected between the high-voltage power source and the current detecting unit, and the other end of the bypass capacitor is connected to a potential regulating electrode, and an electrostatic capacitance Cp of the bypass capacitor satisfies a following formula: Cp>∈A/d where ∈: permittivity of vacuum, A: an area of the light-emitting member, and d: a distance between the rear plate and the face plate.
    • 本发明的图像显示装置具有具有多个电子发射器件的背板,具有发光元件的面板,向发光元件施加高电压的高压电源, 检测来自电子发射器件的发射电流的电流检测单元和旁路电容器。 旁路电容器的一端连接在高压电源和电流检测单元之间,旁路电容器的另一端与电位调节电极连接,旁路电容器的静电电容Cp满足下式 :Cp>∈A/ d其中∈:真空的介电常数,A:发光构件的面积,d:后板与面板之间的距离。
    • 4. 发明申请
    • PNEUMATIC TIRE FOR MOTORCYCLE
    • 摩托车气动轮胎
    • US20090266462A1
    • 2009-10-29
    • US12094685
    • 2006-11-29
    • Masahiko YamamotoHidenobu Akahane
    • Masahiko YamamotoHidenobu Akahane
    • B60C9/00B60C9/02B60C9/18
    • B60C9/0042B60C9/08B60C9/20
    • A pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to achieve excellent driving stability, is provided. Furthermore, a pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to realize excellent gripping force to stabilize the behavior of the tire near its cornering limit and excellent cornering ability, is provided.Provided is a pneumatic tire for a motorcycle, which employs a multifilament-twist polyketone fiber cord, as a reinforcing material, having a total dtex value of 1000 to 20000 dtex per cord and satisfying the relationships represented by the following Expressions (I) and (II): σ≧−0.01E+1.2  (I) σ≧0.02  (II) (wherein, E is an elastic modulus (cN/dtex) at 25° C. under a load of 49 N, and σ is a heat shrinkage stress (cN/dtex) at 177° C.).
    • 本发明提供一种摩托车用充气轮胎,其特征在于,轮胎在高速行驶中的接地形状和接地压力分布优化,达到良好的行驶稳定性。 此外,一种用于摩托车的充气轮胎,其中轮胎在高速行驶期间以接地形状和接地压力分布优化,以实现优异的夹紧力,以使轮胎的转弯极限附近的行为稳定并具有优异的转弯能力 ,被提供。 本发明提供一种摩托车用充气轮胎,其采用复丝扭转聚酮纤维帘线作为增强材料,每根绳索的总dtex值为1000〜20000dtex,满足下述表达式(I)和( II):σ= -0.01E + 1.2(I)σ= 0.02(II)(其中,E是在25℃,49N负荷下的弹性模量(cN / dtex),σ是 在177℃下的热收缩应力(cN / dtex))。
    • 5. 发明申请
    • Pneumatic tire for motorcycle
    • 摩托车气动轮胎
    • US20060266457A1
    • 2006-11-30
    • US10568340
    • 2004-07-12
    • Masahiko Yamamoto
    • Masahiko Yamamoto
    • B60C15/04
    • B60C15/04B60C2015/046D07B1/0633D07B2201/2051D07B2801/12
    • This invention relates to a pneumatic tire for a motorcycle improving a cornering stability, and more particularly to a pneumatic tire for a motorcycle comprising a pair of bead portions 2, a carcass 1 wound around a bead core 3 embedded in the respective bead portion, a tread portion arranged on an outside of a crown portion of the carcass and a pair of sidewall portions extending inward from both ends of the tread portion in a radial direction of the tire, in which the bead core 3 is a cable bead and a geometric second moment coefficient Σ(π/64×d4) of the bead core 3 (wherein d is a diameter of each filament constituting the bead core) satisfies an equation of 0.50
    • 本发明涉及一种提高转弯稳定性的摩托车用充气轮胎,更具体地说,涉及一种摩托车用充气轮胎,其包括一对胎圈部2,卷绕在嵌入胎圈部的胎圈芯3的胎体1, 胎体部分布置在胎体的胎冠部分的外侧;以及一对侧壁部分,其沿轮胎的径向方向从胎面部分的两端向内延伸,胎圈芯3是电缆胎圈,几何秒 胎圈芯3(其中d是构成胎圈芯的每根细丝的直径)的力矩系数Σ(pi / 64xd4)满足0.50 )<1.50。
    • 8. 发明授权
    • Butterfly valve
    • 蝶阀
    • US4604254A
    • 1986-08-05
    • US735858
    • 1985-05-20
    • Masahiko YamamotoYoshinori NishinoTadayoshi UdaYoshiteru SonodaToshio Suyama
    • Masahiko YamamotoYoshinori NishinoTadayoshi UdaYoshiteru SonodaToshio Suyama
    • F16K1/226F16K1/228F16K27/02F16K1/22B28B7/22
    • F16K1/228F16K1/2261F16K27/0272Y10T137/7036
    • A butterfly valve comprises a substantially cylindrical casing (20) having an annular valve seat (A) on its inner peripheral surface, and a valve disk (44) disposed within the casing (20) and rotatable about an axis (35). The valve disk (44) is formed at an outer peripheral edge portion with an annular groove (52) in which an annular valve seal (51) is partially fitted. The valve seal (51) is adapted for pressing contact with the valve seat (A) at a predetermined pressure and anchored in the annular groove (52) by resin (58) pressure-injected into the annular groove (52) through a resin injection channel (53) in communication with the groove. Accordingly, the seal pressure of the valve seal (51) on the valve seat (A) can be set to the predetermined value at all times even if the dimensions of the valve seat (A) and the valve disk (44) and the position of the axis of rotation (35) involve errors.
    • 蝶阀包括在其内周表面上具有环形阀座(A)的基本上圆柱形的壳体(20),以及设置在壳体(20)内并可围绕轴线(35)旋转的阀盘(44)。 阀盘(44)在外周边缘部分形成有环形槽(52),环形阀密封件(51)部分地装配在该环形槽中。 阀门密封件51适于以预定的压力与阀座(A)压力接触并通过树脂注入到环形槽(52)中的树脂(58)固定在环形槽52中。 通道(53)与凹槽连通。 因此,即使阀座(A)和阀盘(44)的尺寸以及阀座(A)的位置,也可以始终将阀座(A)上的阀密封件(51)的密封压力始终设定为规定值 的旋转轴(35)涉及错误。
    • 10. 发明申请
    • STEP-UP DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 升压DC-DC转换器和半导体集成电路器件
    • US20110210710A1
    • 2011-09-01
    • US12987114
    • 2011-01-08
    • Masahiko YAMAMOTOTakao Okazaki
    • Masahiko YAMAMOTOTakao Okazaki
    • G05F1/565
    • H02M3/156H02M2001/0032Y02B70/16
    • A semiconductor integrated circuit device includes: a semiconductor switching element; an input voltage detection circuit that outputs a voltage correlated to an input voltage; an oscillator circuit that oscillates on the basis of the voltage outputted by the input voltage detection circuit; a control logic that generates a drive signal; a power supply circuit that boosts a battery voltage; a buffer that level-shifts the drive voltage outputted by the control logic; and an amplification element that operates using a voltage generated by the semiconductor switching element as a power supply. Thus, the semiconductor switching element can be on/off controlled so that switching loss at low load can be reduced while preventing the peak current flowing into the inductor coil from depending on the input voltage.
    • 半导体集成电路器件包括:半导体开关元件; 输入电压检测电路,其输出与输入电压相关的电压; 基于输入电压检测电路输出的电压进行振荡的振荡电路; 产生驱动信号的控制逻辑; 提供电池电压的电源电路; 缓冲器,其对由控制逻辑输出的驱动电压进行电平移位; 以及使用由半导体开关元件产生的电压作为电源进行工作的放大元件。 因此,可以对半导体开关元件进行开/关控制,使得能够降低低负载时的开关损耗,同时防止根据输入电压流入电感线圈的峰值电流。