公开(公告)号：US06404103B1

公开(公告)日：2002-06-11

申请号：US09703148

申请日：2000-10-31

申请人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

发明人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

IPC分类号： H02N200

CPC分类号： H02N2/163 ,  H02N2/145

摘要： An ultrasonic motor with increased output power per unit volume is provided by simultaneously driving all of a plurality of polarized segments of a piezoelectric element having a circular disk shape and divided into a multiple of four polarized segments in a circumferential direction. Projections are provided at upper faces of the polarized segments of the piezoelectric element and spaced apart by an odd number of polarized segments. Polarities of adjacent polarized segments are the same and polarities of adjacent pairs are reverse to each other. A first polarized segment group comprises every other polarized segment and a second polarized segment group comprises the remaining polarized segments. By selecting whether phases of alternating voltages supplied to the first and second polarized segment groups are the same or are 180 degrees out of phase, the direction of the motor is determined.

摘要翻译： 通过同时驱动具有圆盘形状的压电元件的多个极化段的全部，并在圆周方向上分成四个极化段的倍数来提供每单位体积输出功率增加的超声波马达。 在压电元件的极化部分的上表面处设置有突出部分，并且间隔开奇数个极化部分。 相邻极化段的极性相同，相邻对的极性彼此相反。 第一极化段组包括每隔一个极化段，而第二极化段组包括剩余的极化段。 通过选择提供给第一和第二极化段组的交流电压的相位是相同还是相位相差180度，确定电动机的方向。

公开(公告)号：US06366003B1

公开(公告)日：2002-04-02

申请号：US09402519

申请日：2000-01-19

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

IPC分类号： H02N200

CPC分类号： H02N2/142 ,  H02N2/103

摘要： A compact ultrasonic motor is made easy to assemble and replace in an electronic apparatus by providing various electronic circuit components on a connector formed integrally with the ultrasonic motor. In one embodiment, a piezoelectric element is in contact with a vibrating body for undergoing vibration along with expansion-and-contraction movement of the piezoelectric element. A moving member is in contact with the vibrating body for undergoing movement in a desired direction in response to vibration of the vibrating body. A support member supports the piezoelectric element, the vibrating body, the moving member, along with a driving circuit for driving the ultrasonic motor and a connector for connecting the piezoelectric element to the driving circuit. The driving circuit is an AC signal generating circuit for supplying an AC signal to the piezoelectric element and a phase adjusting device for adjusting phase characteristics of the AC signal generating circuit. By providing the driving circuit and the connector on the support member, the ultrasonic motor is compact and easy to handle.

摘要翻译： 通过在与超声波马达一体形成的连接器上提供各种电子电路部件，使得紧凑型超声波马达易于在电子设备中组装和更换。 在一个实施例中，压电元件与振动体接触，用于随着压电元件的膨胀和收缩运动而经历振动。 移动构件与振动体接触，以响应于振动体的振动而在所需方向上运动。 支撑构件支撑压电元件，振动体，移动构件以及用于驱动超声波马达的驱动电路和用于将压电元件连接到驱动电路的连接器。 驱动电路是用于向压电元件提供AC信号的AC信号发生电路和用于调节AC信号发生电路的相位特性的相位调节装置。 通过在支撑构件上设置驱动电路和连接器，超声波马达紧凑且易于处理。

公开(公告)号：US06278221B1

公开(公告)日：2001-08-21

申请号：US09249267

申请日：1999-02-12

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki

IPC分类号： H02N200

CPC分类号： H02N2/16

摘要： A small, efficient and stable ultrasonic motor is provided, wherein force is prevented from varying before and after assembly and can be adjusted after assembly without requiring troublesome operations. An electronic apparatus with such a ultrasonic motor is also provided. The ultrasonic motor has a force applying device for applying a force to a vibrating member to be vibrated and to a moving member placed in abutment against the vibrating member to cause a frictional force therebetween so that the moving member is driven by the frictional force. The force applying device comprises a main force applying device for applying a main force and a force adjusting elements for adjusting the force applied by the main force applying device. In one embodiment, the main force applying device is a leaf spring and the force applying elements are slits formed in the leaf spring and strips formed between the slits. Adjustment of the force applied by the leaf spring is performed by removing one or more of the strips.

摘要翻译： 提供了一种小型，高效和稳定的超声波马达，其中防止组装之前和之后的力变化，并且可以在组装之后进行调节，而不需要麻烦的操作。 还提供了一种具有这种超声波马达的电子设备。 超声波马达具有向施加振动的振动部件施加力的施力装置和与振动部件抵接的移动部件，从而在其间产生摩擦力，使得移动部件被摩擦力驱动。 施力装置包括用于施加主力的主力施加装置和用于调节由主施力装置施加的力的力调节元件。 在一个实施例中，主力施加装置是板簧，施力元件是形成在板簧中的狭缝和形成在狭缝之间的条。 通过移除一个或多个条带来执行由片簧施加的力的调节。

公开(公告)号：US06218769B1

公开(公告)日：2001-04-17

申请号：US09369089

申请日：1999-08-05

申请人： Akihiro Iino ,  Masao Kasuga ,  Satoshi Watanabe

发明人： Akihiro Iino ,  Masao Kasuga ,  Satoshi Watanabe

IPC分类号： H01L4104

CPC分类号： H01L41/0913 ,  H02N2/004 ,  H02N2/026 ,  H02N2/103

摘要： An ultrasonic motor comprises first piezoelectric oscillators alternately arranged with first polarized regions having a first direction of polarization and second polarized regions having a second direction of polarization opposite to the first direction of polarization. The first piezoelectric oscillators undergo bending vibration in a first direction upon input of drive signals having a same phase to the first polarized regions and the second polarized regions to thereby excite the first and second polarized regions. Second piezoelectric oscillators are laminated to the first piezoelectric oscillators in a second direction generally perpendicular to the first direction for undergoing elongation and contraction vibration in the first direction. When a driving signal is applied to the first and second piezoelectric oscillators a drive force is generated by a combination of the bending vibration of the first piezoelectric oscillators and the elongation and contraction vibration of the second piezoelectric oscillators.

摘要翻译： 超声波马达包括交替布置的第一压电振荡器，其具有具有第一偏振方向的第一偏振区域和具有与第一偏振方向相反的第二偏振方向的第二偏振区域。 第一压电振荡器在向第一偏振区域和第二偏振区域输入具有相同相位的驱动信号时，在第一方向上经历弯曲振动，从而激发第一和第二偏振区域。 第二压电振荡器在大致垂直于第一方向的第二方向上层压到第一压电振荡器，以在第一方向上进行伸长和收缩振动。 当驱动信号施加到第一和第二压电振荡器时，通过第一压电振荡器的弯曲振动和第二压电振荡器的伸长和收缩振动的组合产生驱动力。

公开(公告)号：US5619089A

公开(公告)日：1997-04-08

申请号：US662902

申请日：1996-06-12

申请人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

IPC分类号： H01L41/04 ,  H02N2/14 ,  H02N2/00

CPC分类号： H02N2/14 ,  H02N2/142 ,  H02N2/145 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezo-electric element and electrode patterns disposed on a surface of the piezo-electric element at nearly equal intervals in a multiple of four. A vibrating member is disposed on another surface of and electrically connected to the piezo-electric element. A moving member is movably disposed on the vibrating member. First projections which frictionally drive the moving member by expansion and contraction movement of the piezo-electric element are disposed on a surface of the vibrating member near every other one of the boundaries of the electrode patterns of the piezo-electric element. Second projections are provided at each intermediate position between the first projections near all of the boundaries of the electrode patterns other than the boundaries near which the first projections are provided for adjusting the vibrating conditions of the vibrating member. The second projections have a different height from the first projection and do not frictionally drive the moving member. A pressure-regulating member urges the moving member into pressure contact with the vibrating member at a predetermined pressure.

摘要翻译： 超声波马达包括以四倍的倍数以几乎相等的间隔设置在压电元件的表面上的压电元件和电极图案。 振动构件设置在压电元件的另一表面上并与其电连接。 移动构件可移动地设置在振动构件上。 通过压电元件的膨胀和收缩运动来摩擦地驱动移动构件的第一凸起设置在振动构件的表面上，靠近压电元件的电极图案的每个边界。 在设置有第一突起的边界以外的电极图案的所有边界附近的第一突起之间的每个中间位置设置有第二突起，用于调节振动部件的振动条件。 第二突起具有与第一突起不同的高度，并且不摩擦地驱动移动构件。 压力调节构件促使移动构件以预定压力与振动构件压力接触。

公开(公告)号：US4472785A

公开(公告)日：1984-09-18

申请号：US311095

申请日：1981-10-13

申请人： Masao Kasuga

发明人： Masao Kasuga

IPC分类号： H03H17/02 ,  H03H17/06 ,  G06F1/00

CPC分类号： H03H17/0288 ,  H03H17/0685

摘要： A sampling frequency converter for converting a first signal sampled at a first sampling frequency f1 into a second signal sampled at a second sampling frequency f2 comprising an interpolation device supplied with the first signal, for inserting L-1 zeros (L is an integer) for every sampling time, a filter circuit for attenuating a frequency component over a frequency f/2 (f is a frequency) within an output signal of said interpolation device, where the filter circuit has a series circuit consisting of a finite impulse response digital filter and an infinite impulse response digital filter, and the frequency f is equal to the first sampling frequency f1 when f1 f2, and a decimation device for extracting every M-th (M is an integer) output signal of the filter circuit, to produce said second signal.

摘要翻译： 一种采样频率转换器，用于将以第一采样频率f1采样的第一信号转换为第二采样频率f2采样的第二信号，包括提供有第一信号的内插装置，用于插入L-1个零（L为整数），用于 每个采样时间，用于在所述内插装置的输出信号内对频率f / 2（f是频率）频率分量进行衰减的滤波器电路，其中滤波电路具有由有限脉冲响应数字滤波器和 无限脉冲响应数字滤波器，并且当f1 f2时等于第二采样频率f2，以及每M个提取的抽取装置（M是 整数）滤波电路的输出信号，产生所述第二信号。

公开(公告)号：US4453255A

公开(公告)日：1984-06-05

申请号：US345459

申请日：1982-02-03

申请人： Yoshiyuki Tsuchikane ,  Masao Kasuga

发明人： Yoshiyuki Tsuchikane ,  Masao Kasuga

IPC分类号： G11B5/035 ,  H03G5/00 ,  H03G5/02 ,  H04L25/03 ,  H04B3/14

CPC分类号： G11B5/035 ,  H03G5/005 ,  H03G5/025 ,  H04L25/03146

摘要： A characteristic control system for a digital equalizer comprises a digital equalizer constructed from a digital filter, for directly giving a desired equalizing characteristic with respect to a digital pulse-modulated signal, and a control part for changing the equalizing characteristic of the digital equalizer from a first arbitrary characteristic to a second arbitrary characteristic so that one or a plurality of intermediate equalizing characteristic is obtained before reaching the desired second arbitrary characteristic.

摘要翻译： 用于数字均衡器的特征控制系统包括由数字滤波器构成的数字均衡器，用于直接给出相对于数字脉冲调制信号的所需均衡特性，以及用于从数字均衡器改变数字均衡器的均衡特性的控制部分 第二任意特性的第一任意特征，使得在达到期望的第二任意特性之前获得一个或多个中间均衡特性。

公开(公告)号：US4366471A

公开(公告)日：1982-12-28

申请号：US236633

申请日：1981-02-20

申请人： Masao Kasuga

发明人： Masao Kasuga

IPC分类号： H04B1/66 ,  G11B20/10 ,  G11B20/24 ,  G11B27/00 ,  H03K13/02

CPC分类号： G11B27/005

摘要： A variable speed reproduction system includes a memory in which analog signal is stored as sampled digital data. A variable frequency digital low-pass filter is receptive of the data read out of the memory. A counter provides a binary representation of a count value of time base clock pulses to a comparator for detecting a coincidence with a variable speed setting of a variable resistor. The output of the comparator resets the counter and is used as a source of reading the data out of the memory. The cut-off frequency of the digital filter is controlled in response to the setting of the resistor so that the high frequency component of the analog equivalent of the input digital data which is higher than one-half of the data reading frequency is eliminated to prevent foldover distortion noise which might occur as a result of the difference between the recording and reproducing speeds. The data read out of the memory is fed to a digital-to-analog converter at a constant frequency and the quantum noise of the output data is filtered out by an analog low-pass filter.

摘要翻译： 变速再现系统包括存储模拟信号作为采样数字数据存储的存储器。 可变频数字低通滤波器可接收从存储器读出的数据。 计数器向比较器提供时基脉冲时钟脉冲的计数值的二进制表示，用于检测与可变电阻器的可变速度设置的一致。 比较器的输出复位计数器，并用作从存储器读出数据的源。 数字滤波器的截止频率响应于电阻器的设置而被控制，使得高于数据读取频率的一半的输入数字数据的模拟等效的高频分量被消除以防止 可能由于记录和再现速度之间的差异而发生的倒塌变形噪声。 从存储器读出的数据以恒定频率馈送到数模转换器，并且输出数据的量子噪声由模拟低通滤波器滤除。

公开(公告)号：US06952072B2

公开(公告)日：2005-10-04

申请号：US10281021

申请日：2002-10-25

申请人： Akihiro Iino ,  Satoshi Watanabe ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Satoshi Watanabe ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： A61B17/32 ,  A61B19/00 ,  H01L41/09 ,  H02N2/16 ,  H02N2/12

CPC分类号： H02N2/0045 ,  A61B17/320068 ,  A61B2017/320088 ,  A61B2090/306 ,  A61B2090/3614 ,  H02N2/106

摘要： An ultrasonic motor has a piezoelectric vibrator driven by a voltage signal to undergo expansion and compression movement. At least two elastic bodies are connected to opposite ends of the piezoelectric vibrator and are vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. Each of the elastic bodies has at least one groove formed in a surface thereof for converting the expansion and compression movement of the piezoelectric vibrator into torsional vibration so that the elastic bodies generate a combination of longitudinal vibration and torsional vibration. A movable member is connected to the elastic bodies to be frictionally driven by the combination of longitudinal and torsional vibrations generated by the elastic bodies.

摘要翻译： 超声波马达具有由电压信号驱动的压电振动器，以进行膨胀和压缩运动。 至少两个弹性体连接到压电振动器的相对端，并且由压电振动器的膨胀和压缩运动振动驱动。 每个弹性体具有形成在其表面中的至少一个槽，用于将压电振动器的膨胀和压缩运动转换成扭转振动，使得弹性体产生纵向振动和扭转振动的组合。 可动构件通过由弹性体产生的纵向和扭转振动的组合而被连接到弹性体上以被摩擦地驱动。

公开(公告)号：US06765334B1

公开(公告)日：2004-07-20

申请号：US09663878

申请日：2000-09-15

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： H01L4106

CPC分类号： H02N2/166 ,  H02N2/126

摘要： A linear motion mechanism comprises a supersonic motor having a rotor which is rotationally driven by vibration of a vibrating body having a piezoelectric element. A transmission mechanism is disposed on the rotor for rotation therewith. A moving body undergoes linear movement in a direction crosswise to a longitudinal axis of a rotational shaft of the rotor in accordance with rotation of the transmission mechanism. A pressurizing mechanism presses the moving body into pressure contact with the transmission mechanism.

摘要翻译： 直线运动机构包括具有转子的超音速马达，所述转子由具有压电元件的振动体的振动旋转驱动。 传动机构设置在转子上以与其一起旋转。 移动体根据传动机构的旋转而沿与转子的旋转轴的纵轴交叉的方向进行直线运动。 加压机构使移动体与传动机构压力接触。