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    • 42. 发明申请
    • Water gravity electric generator
    • 水重力发电机
    • US20070248339A1
    • 2007-10-25
    • US11408191
    • 2006-04-20
    • Takeshi Akiyama
    • Takeshi Akiyama
    • F24H1/18
    • F03G3/00
    • A system for generating electricity for a structure, such as a home or building, receiving a water supply under pressure, comprising a plurality of oscillating tanks adapted to move from an upper position to a lower position by gravity, means to fill a tank with water from the water supply when the tank reaches its upper position, means to empty the water in the tank when the tank reaches its lower position by gravity, said water being passed back into the structure water supply, a generator having a shaft, means to turn the shaft by the oscillating movement of the tanks.
    • 一种用于为诸如家庭或建筑物的结构发电的系统,在压力下接收供水,包括适于通过重力从上部位置移动到下部位置的多个振动槽,意味着用水填充水 当水箱到达其上部位置时,当水箱通过重力到达其下部位置时,从水箱中取出水,将水返回到结构供水装置中,一个具有轴的发电机转动 轴通过水槽的摆动运动。
    • 43. 发明授权
    • Waveform equalizer having a tap coefficient monitoring unit
    • 具有抽头系数监测单元的波形均衡器
    • US07269213B2
    • 2007-09-11
    • US09730188
    • 2000-12-05
    • Kazushi TakanashiTakeshi Akiyama
    • Kazushi TakanashiTakeshi Akiyama
    • H03H7/30
    • H04L25/0202H04L25/03057H04L2025/03375H04L2025/0349H04L2025/03681
    • A waveform equalizer having a delay element of a feed-forward filter into which a reception signal is inputted is connected via a tap arrangement control switch to a weighting device The output of the weight device is inputted into an adder. The output of the adder is entered into a discriminator to become an equalization output. The equalization output is entered into a delay element of a feed-back filter. The delay element is connected via the tap arrangement control switch to the weighting device. The tap arrangement control switch ON/OFF-controls the tap arrangement. The tap coefficient monitoring unit monitors the tap coefficients of the weighting device. When the equalization operation cannot be carried out, it is restarted from the beginning of the reception signal. An impulse response predictor predicts an impulse response of a transfer path based upon the reception signal and the equalization output.
    • 具有输入接收信号的前馈滤波器的延迟元件的波形均衡器经由抽头布置控制开关连接到加权装置。加权装置的输出被输入加法器。 加法器的输出进入鉴别器,成为均衡输出。 均衡输出进入反馈滤波器的延迟元件。 延迟元件通过抽头布置控制开关连接到加权装置。 龙头排列控制开关ON / OFF控制龙头装置。 抽头系数监视单元监视加权装置的抽头系数。 当不能执行均衡操作时,从接收信号的开始重新开始。 脉冲响应预测器基于接收信号和均衡输出来预测传输路径的脉冲响应。
    • 49. 发明授权
    • Zoom lens
    • US06522475B2
    • 2003-02-18
    • US08798934
    • 1997-02-11
    • Takeshi AkiyamaNorihiro Nanba
    • Takeshi AkiyamaNorihiro Nanba
    • G02B1514
    • G02B15/16G02B17/0848G02B17/086G02B17/0896
    • A zoom optical system comprises a plurality of optical elements. The plurality of optical elements include a first optical element having two refracting surfaces and a plurality of reflecting surfaces formed in a transparent body, being arranged such that a light beam enters an inside of the transparent body from one of the two refracting surfaces and, after being successively reflected from the plurality of reflecting surfaces, exits from the other of the two refracting surfaces, and/or a second optical element having a plurality of surface mirrors integrally formed and decentered relative to one another, being arranged such that an incident light beam exits therefrom after being successively reflected from reflecting surfaces of the plurality of surface mirrors, and a third optical element composed of a plurality of coaxial refracting surfaces. In the zoom optical system, an image of an object is formed through the plurality of optical elements, and zooming is effected by varying relative positions of at least two optical elements of the plurality of optical elements.