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    • 1. 发明授权
    • Longitudinal-torsional resonance ultrasonic motor with improved support
structure
    • 具有改进的支撑结构的纵向 - 扭转共振超声波马达
    • US5319278A
    • 1994-06-07
    • US72721
    • 1993-06-07
    • Osamu MyohgaTakeya HashiguchiTakeshi Inoue
    • Osamu MyohgaTakeya HashiguchiTakeshi Inoue
    • H01L41/09H02N2/12H01L41/08
    • H02N2/0045H02N2/0055H02N2/106
    • An ultrasonic motor comprises a rotor and a stator between which a pressurized face-to-face contact is established. The stator includes a longitudinal vibrator for producing a longitudinal thrust in the axial direction thereof and a torsional vibrator for transmitting a torsional thrust to the rotor in response to a longitudinal thrust timely generated by the longitudinal vibrator. The stator is supported by a structure which comprises a ring portion secured to the stator and a plurality of limb portions radially extending from the ring portion. Each of the limb portions has such an effective length and a width that the oscillation frequency of the motor matches the primary resonant frequency of a vibration of the limb portion generated on a plane normal to the axial direction of the stator and has such a thickness that the oscillation frequency matches an intermediate point between adjacent antiresonant frequencies of a vibration of the limb portion generated in the axial direction of the stator.
    • 超声波马达包括转子和定子,在该定子之间建立加压的面对面接触。 定子包括用于在其轴向方向上产生纵向推力的纵向振动器和用于响应由纵向振动器及时产生的纵向推力将扭转推力传递到转子的扭转振动器。 定子由包括固定到定子的环部分和从环部分径向延伸的多个分支部分的结构支撑。 每个肢体具有这样的有效长度和宽度,使得电动机的振荡频率与在与定子的轴向方向垂直的平面上产生的肢体部分的振动的初级共振频率匹配,并且具有这样的厚度: 振荡频率与在定子的轴向产生的肢体部分的振动的相邻反共振频率之间的中间点相匹配。
    • 7. 发明授权
    • Signal processing device, method and receiving device
    • 信号处理装置,方法和接收装置
    • US08433011B2
    • 2013-04-30
    • US13014980
    • 2011-01-27
    • Keitaro OtsukaTakeshi Inoue
    • Keitaro OtsukaTakeshi Inoue
    • H03D1/00
    • H04L25/06H04L27/06
    • A signal processing device includes: a first correlator that sequentially multiplies a first receive signal including a pattern in a receive signal and a first reference pattern signal including a complex conjugate of a first partial signal of the first receive signal at a sampling timing to generate a first correlation voltage; a second correlator that sequentially multiplies the first receive signal and a second reference pattern signal including a complex conjugate of a second partial signal, which is behind the first partial signal, at a sampling timing to generate a second correlation voltage; and a phase difference generation circuit that generates a first phase difference between the first partial signal and the second partial signal based on a first correlation peak voltage obtained when the first correlation voltage has a peak value and a second correlation peak voltage obtained when the second correlation voltage has a peak value.
    • 信号处理装置包括:第一相关器,其在采样定时顺序地将包括接收信号中的模式的第一接收信号和包括第一接收信号的第一部分信号的复共轭的第一参考模式信号相乘以产生 第一相关电压; 第二相关器,其以采样定时顺序地乘以所述第一接收信号和第二参考图形信号,所述第二参考图形信号包括位于所述第一部分信号之后的第二部分信号的复共轭,以产生第二相关电压; 以及相位差生成电路,其基于当所述第一相关电压具有峰值时获得的第一相关峰值电压和当所述第二相关电压具有峰值时获得的第二相关峰值电压,产生所述第一部分信号和所述第二部分信号之间的第一相位差 电压有峰值。