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    • 3. 发明授权
    • Time measurement device and time measurement method
    • 时间测量装置和时间测量方法
    • US06370087B1
    • 2002-04-09
    • US09446377
    • 2000-02-29
    • Hidehiro AkahaneKenichi OkuharaAkihiko MaruyamaNobuhiro Koike
    • Hidehiro AkahaneKenichi OkuharaAkihiko MaruyamaNobuhiro Koike
    • G04B1904
    • G04F7/08G04F7/00G04F7/0847
    • In a time measurement device (1000) having, at least, both a function of measuring standard time and a function of measuring any elapsed time, when a predetermined amount of time passes from a temporary suspension of a watch hand in position in the middle of the measurement of the elapsed time, the suspension of the watch hand is automatically released and the watch hand is driven to a watch hand position indicating the elapsed time. Provided thereby is the time measurement device which automatically releases the temporary suspension state in time measurement after the predetermined amount of time, thereby shortening the temporary suspension time and reducing power consumed to drive the watch hand to an originally expected watch hand position at the release of the temporary suspension.
    • 在时间测量装置(1000)中,至少具有测量标准时间的功能和测量任何经过时间的功能,当预定时间量从手表的暂停中止时, 自动释放经过时间的测量,手表的悬挂,并且将手表手驱动到指示经过时间的手表位置。 由此提供了在预定时间量之后自动释放时间测量中的暂时停止状态的时间测量装置,从而缩短了临时停止时间,并且在释放时将手表手驱动的功率减小到原来预期的手表位置 临时停牌。
    • 7. 发明授权
    • Piezoactuator and drive circuit therefor
    • 压电器及其驱动电路
    • US06841919B2
    • 2005-01-11
    • US10109356
    • 2002-03-26
    • Hidehiro AkahaneAkihiro SawadaMakoto Furuhata
    • Hidehiro AkahaneAkihiro SawadaMakoto Furuhata
    • H01L41/04H01L41/09H02N2/00H01L41/08
    • H02N2/103H02N2/004H02N2/008
    • A piezoactuator has a diaphragm, and the diaphragm has flat piezoelectric elements that oscillate in a longitudinal oscillation mode and a sinusoidal oscillation mode. A first electrode for detecting oscillation in the longitudinal oscillation mode, and a second electrode for detecting the amplitude of oscillation in the sinusoidal oscillation mode, are disposed on the surface of the diaphragm. When the piezoactuator is driven with a drive signal, the phase difference of a first detection signal output from the first electrode and a second detection signal output from the second electrode is detected. The frequency at which the detected phase difference becomes the maximum phase difference is then obtained, and a drive signal of a matching frequency is applied to the piezoelectric elements.
    • 压电致动器具有隔膜,并且隔膜具有以纵向振荡模式和正弦振荡模式振荡的平坦的压电元件。 用于检测纵向振荡模式中的振荡的第一电极和用于检测正弦振荡模式中的振荡幅度的第二电极设置在隔膜的表面上。 当用驱动信号驱动压电致动器时,检测从第一电极输出的第一检测信号和从第二电极输出的第二检测信号的相位差。 然后获得检测到的相位差成为最大相位差的频率,并且将匹配频率的驱动信号施加到压电元件。
    • 9. 发明授权
    • Time correction system, time correction instruction device, pointer type timepiece, and time correction method
    • 时间校正系统,时间校正指示装置,指针式时计和时间校正方法
    • US07167417B2
    • 2007-01-23
    • US10752089
    • 2004-01-07
    • Hidehiro AkahaneOsamu Takahashi
    • Hidehiro AkahaneOsamu Takahashi
    • G04C11/00G06F1/04G04B19/04
    • G04R20/00G04R20/28G04R60/14
    • A time correction system has a timepiece with pointers for displaying the time, and a correction instruction device. The correction instruction device has a timing section for timing reference time data, a time input section for inputting pointed time data corresponding to the time indicated by the pointers, a comparison section for comparing the reference time data and the pointed time data, and a communication section for outputting a correction instruction signal based on the results of this comparison to the pointer type timepiece. The pointer type timepiece has an external signal detection circuit for receiving the correction instruction signal, a drive control section for controlling the driving of the pointers, and a time correction control circuit for matching the readings of the pointers with the reference time data based on the received correction instruction signal.
    • 时间校正系统具有用于显示时间的指针的钟表和校正指示装置。 校正指示装置具有用于定时基准时间数据的定时部分,用于输入与指针所指示的时间相对应的指向时间数据的时间输入部分,用于比较参考时间数据和指示时间数据的比较部分,以及通信 部分,用于基于与指针型时计的该比较的结果输出校正指令信号。 指针式时计具有用于接收校正指示信号的外部信号检测电路,用于控制指针的驱动的驱动控制部,以及基于时钟校正控制电路,用于将指针的读数与基准时间数据进行匹配 接收到校正指令信号。