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    • 83. 发明申请
    • Digital communication method and digital communication device
    • 数字通信方式和数字通信设备
    • US20060093046A1
    • 2006-05-04
    • US10530323
    • 2003-10-02
    • Makoto Nakamura
    • Makoto Nakamura
    • H04B14/04
    • H03M13/3983H03M13/235H03M13/256H04L1/0054H04L1/0059H04L27/2057H04L27/2332
    • A digital communication device includes: a modulator having encoding means for converting two-dimensional digital information signal into a three-dimensional signal and phase modulation means for modifying the carrier phase in according to the three-dimensional signal; and a demodulator having phase demodulation means for detecting information on the three-dimensional signal from the received phase-modulated wave and demodulation means for deciding the two-dimensional digital information from the information on the three-dimensional signal. The digital communication device has a bit error ratio and an occupied radio band width equivalent to a digital communication device using the conventional QPSK or π/4 shift QPSK and the error correction method and greatly improves the amplitude fluctuation. Moreover, the digital communication device can transmit a signal with a narrower occupied frequency band width while maintaining the same constant envelope characteristic as the GMSK using the conventional error correction code.
    • 数字通信装置包括:具有用于将二维数字信息信号转换为三维信号的编码装置的调制器和用于根据三维信号修改载波相位的相位调制装置; 以及解调器,具有用于从接收到的相位调制波检测关于三维信号的信息的相位解调装置和用于根据关于三维信号的信息来确定二维数字信息的解调装置。 数字通信设备具有与使用传统的QPSK或者pi / 4移位QPSK的数字通信设备相当的比特误差率和占用的无线电带宽以及纠错方法,并且极大地改善了振幅波动。 此外,数字通信设备可以使用传统的纠错码在保持与GMSK保持相同的恒定包络特性的同时发送具有较窄占用频带宽度的信号。
    • 87. 发明授权
    • Valve timing and lift control system
    • 气门正时和电梯控制系统
    • US06502535B2
    • 2003-01-07
    • US09880838
    • 2001-06-15
    • Makoto Nakamura
    • Makoto Nakamura
    • F10L134
    • F01L13/0015F01L1/34F01L2800/00
    • A variable valve timing and lift control system for an internal combustion engine is provided which comprises a first control mechanism for variably controlling a valve lift and an operation angle of an exhaust valve of the engine, a second control mechanism for variably controlling a maximum lift phase of the exhaust valve, a detector for detecting an operating condition of the engine and producing a signal representative thereof, and a controller for controlling the first control mechanism and the second control mechanism in response to the signal from the detector.
    • 提供了一种用于内燃机的可变气门正时和升程控制系统,其包括用于可变地控制发动机的排气阀的气门升程和操作角度的第一控制机构,用于可变地控制最大升程相位的第二控制机构 排气阀的检测器,用于检测发动机的运行状态并产生代表其的信号的检测器,以及响应于来自检测器的信号来控制第一控制机构和第二控制机构的控制器。
    • 88. 发明授权
    • Rubber product
    • 橡胶制品
    • US06365657B1
    • 2002-04-02
    • US09692055
    • 2000-10-20
    • Hideo GotoMakoto Nakamura
    • Hideo GotoMakoto Nakamura
    • C08K513
    • C08K5/13C08L9/00
    • The rubber product has similar stretchability to the human skin, so that it is useful for application to items to be put into direct contact with the skin. The rubber product is provided with 200% modulus M200 of equal to or less than 15 kgf/cm2 (14.7×105 Pa), and modulus ratios of 200% modulus M200) to 100%. modulus (M100) M200/M100, 300% modulus (M300) to 200% modulus (M200) M300/M200, and 400% modulus (M400) to 300% modulus (M300) M400/M300 all of which are equal to or less than 2.0.
    • 橡胶制品具有与人体皮肤相似的伸缩性,因此可用于与皮肤直接接触的物品。 橡胶制品具有等于或小于15kgf / cm2(14.7×105Pa)的200%模量M200和200%模量M200的模量比)至100%。 模量(M100)M200 / M100,300%模量(M300)至200%模量(M200)M300 / M200和400%模量(M400)至300%模量(M300)M400 / M300均等于或等于 超过2.0。