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1. 发明授权

US06825592B2 Vibratory motors and methods of making and using same 有权
公开(公告)号：US06825592B2
公开(公告)日：2004-11-30
申请号：US10691362
申请日：2003-10-22
申请人： Bjoern Magnussen , Peter Varadi , Benjamin Hagemann , Steven Schofield , Erick M. Davidson
发明人： Bjoern Magnussen , Peter Varadi , Benjamin Hagemann , Steven Schofield , Erick M. Davidson
IPC分类号： H01I4108
CPC分类号： H01L41/0906
摘要： A single piezoelectric is excited at a first frequency to cause two vibration modes in a resonator producing a first elliptical motion in a first direction at a selected contacting portion of the resonator that is placed in frictional engagement with a driven element to move the driven element in a first direction. A second frequency excites the same piezoelectric to cause two vibration modes of the resonator producing a second elliptical motion in a second direction at the selected contacting portion to move the driven element in a second direction. The piezoelectric is preloaded in compression by the resonator. Walls of the resonator are stressed past their yield point to maintain the preload. Specially shaped ends on the piezoelectric help preloading. The piezoelectric can send or receive vibratory signals through the driven element to or from sensors to determine the position of the driven element relative to the piezoelectric element or resonator. Conversely, the piezoelectric element can receive vibration or electrical signals passed through the driven element to determine the position of the driven element. The resonator is resiliently urged against the driven element, or vice versa. Plural resonators can drive common driven elements.

2. 发明授权

US06812619B1 Resonator structure and a filter comprising such a resonator structure 有权
标题翻译：谐振器结构和包括这种谐振器结构的滤波器
公开(公告)号：US06812619B1
公开(公告)日：2004-11-02
申请号：US10031579
申请日：2002-01-17
申请人： Jyrki Kaitila , Markku Ylilammi , Juha Ellä
发明人： Jyrki Kaitila , Markku Ylilammi , Juha Ellä
IPC分类号： H01I4108
CPC分类号： H03H9/173 , H03H9/132
摘要： A resonator structure (1200, 1300, 1400), where a certain wave mode is piezoelectrically excitable, comprises at least two conductor layers (110, 120) and at least one piezoelectric layer (110) in between the conductor layers, said conductor layers and piezoelectric layer extending over a first area of the resonator structure, which first area is a piezoelectrically excitable area of the resonator structure. The resonator structure is characterized in that it comprises a frame-like zone (2, 4) confining a center area (3) within the first area, a cut-off frequency of the piezoelectrically excited wave mode in the layer structure of the frame-like zone is different from that in the layer structure of the center area, and width of the frame-like zone and acoustical properties of the layer structure in the frame-like zone are arranged so that displacement relating to the piezoelectrically excited strongest resonance mode is substantially uniform in the center area of the resonator.
摘要翻译：一种其中一定波模式是可压电激发的谐振器结构（1200,1300,1400）包括至少两个导体层（110,120）和至少一个压电层（110），位于导体层之间，所述导体层和压电层在谐振器结构的第一区域上延伸，该第一区域是谐振器结构的压电可激发区域。谐振器结构的特征在于，其包括限制第一区域内的中心区域（3）的框架状区域（2,4），框架状区域的层结构中的压电激发波模式的截止频率，与框状区域的层结构不同，框状区域的框状宽度和层结构的声学特性被布置成使得与压电激发的最强谐振模式有关的位移为在谐振器的中心区域基本均匀。

3. 发明授权

US06720714B2 Vibrating gyroscope 有权
标题翻译：振动陀螺仪
公开(公告)号：US06720714B2
公开(公告)日：2004-04-13
申请号：US09950524
申请日：2001-09-10
申请人： Nobuyuki Ishitoko , Katsumi Fujimoto , Yoshiji Okamoto , Hirofumi Tanaka
发明人： Nobuyuki Ishitoko , Katsumi Fujimoto , Yoshiji Okamoto , Hirofumi Tanaka
IPC分类号： H01I4108
CPC分类号： G01C19/5663 , G01C19/56 , G01C19/5642
摘要： A vibrating gyroscope includes a vibrator having a node and a support member having a thin flexible portion and an expanded portion which is connected to the thin flexibly portion and has a larger area than the thin flexible portion. The expanded portion of the support member is fixed to the vibrator at the node.
摘要翻译：振动陀螺仪包括具有节点的振动器和具有薄的柔性部分的支撑构件和连接到薄柔性部分并且具有比薄柔性部分更大的面积的扩展部分。支撑构件的膨胀部分在节点处固定到振动器。

4. 发明授权

US06710512B2 Microelement piezoelectric feedback type picking and releasing device 失效
标题翻译：微量元件压电反馈式拾取和释放装置
公开(公告)号：US06710512B2
公开(公告)日：2004-03-23
申请号：US10175841
申请日：2002-06-21
申请人： Hung-Yin Tsai , Chih-Yung Cheng , Ping-Yin Liu
发明人： Hung-Yin Tsai , Chih-Yung Cheng , Ping-Yin Liu
IPC分类号： H01I4108
CPC分类号： B81C99/002 , B25J7/00 , H01L41/1132
摘要： A microelement piezoelectric feedback type picking and releasing device is constructed to include a piezoelectric material, an IDT (interdigital transducer) electrode plated and a progressive electrode plated on the piezoelectric material, the progressive electrode having a plurality of electrode elements of different sizes arranged in proper order in one direction, the IDT electrode forming a releasing unit by means of surface acoustic wave/ultrasonic wave and serving as a voltage signal feedback sensor for clamping force control.
摘要翻译：微型元件压电反馈型拾取和释放装置被构造成包括压电材料，电镀IDT（叉指式换能器）电极和镀在压电材料上的逐行电极，该渐进电极具有多个布置成适当的不同尺寸的电极元件 IDT电极通过表面声波/超声波形成释放单元，并用作用于夹紧力控制的电压信号反馈传感器。

5. 发明授权

US06703761B2 Method and apparatus for restraining temperature induced deformation of a piezoelectric device 失效
标题翻译：抑制压电元件的温度变形的方法和装置
公开(公告)号：US06703761B2
公开(公告)日：2004-03-09
申请号：US10036688
申请日：2001-12-21
申请人： Christopher F. Gallmeyer , L. Glenn Waterfield
发明人： Christopher F. Gallmeyer , L. Glenn Waterfield
IPC分类号： H01I4108
CPC分类号： H01L41/0926 , H01L41/042
摘要： Apparatuses and methods for controlling the temperature induced deformation of a piezoelectric device. A piezoelectric device receives an activation signal and displaces in a first direction for a first predetermined distance as a function of the activation signal. The piezoelectric device also displaces in a second direction as a function of a change in temperature of the piezoelectric device. A stop is located a second predetermined distance from the piezoelectric device. The stop prevents the displacement of the piezoelectric device in the second direction beyond a third predetermined distance. A charge redistributing device is coupled with the piezoelectric device. The charge redistributing device redistributes charge on the piezoelectric device due to the temperature change to relieve internal electric fields of the piezoelectric device due to temperature induced deformation of the piezoelectric device.
摘要翻译：用于控制压电装置的温度诱导变形的装置和方法。压电装置接收激活信号，并作为激活信号的函数在第一方向上移位第一预定距离。压电装置还可以作为压电装置的温度变化的函数在第二方向上移位。止动件位于离压电装置第二预定距离处。止动件防止压电装置在第二方向上的位移超过第三预定距离。电荷再分配装置与压电装置耦合。电荷再分配装置由于温度变化而重新分布在压电装置上的电荷，以缓解由于压电装置的温度引起的变形而导致的压电装置的内部电场。

6. 发明授权

US06703760B2 Surface acoustic wave device and communication apparatus 失效
标题翻译：声表面波装置及通信装置
公开(公告)号：US06703760B2
公开(公告)日：2004-03-09
申请号：US10090805
申请日：2002-03-06
申请人： Michio Kadota
发明人： Michio Kadota
IPC分类号： H01I4108
CPC分类号： H03H9/6446 , H03H9/0028 , H03H9/008 , H03H9/02622 , H03H9/02669 , H03H9/02716 , H03H9/02795 , H03H9/02818 , H03H9/25 , H03H9/6433
摘要： A surface acoustic wave device includes a piezoelectric substrate, a first interdigital transducer, a second interdigital transducer and a first coupler. The first and second interdigital transducers are arranged on the surface of the piezoelectric substrate such that the second interdigital transducer is offset from a direction in which a surface acoustic wave excited by the first IDT propagates. A first edge is provided on the piezoelectric substrate to reflect the excited surface acoustic wave to the first and second interdigital transducers, and the first coupler having a plurality of metal strips on the piezoelectric substrate is provided between the first edge of the piezoelectric substrate and at least one of the first and second interdigital transducers so as to be adjacent to the first and second interdigital transducers. The surface acoustic wave device operates using a shear horizontal surface wave.
摘要翻译：表面声波装置包括压电基片，第一叉指换能器，第二叉指换能器和第一耦合器。第一和第二叉指换能器布置在压电基片的表面上，使得第二叉指式换能器偏离由第一IDT激发的表面声波传播的方向。在压电基板上设置第一边缘以将激发的表面声波反射到第一和第二叉指式换能器，并且在压电基板上具有多个金属条的第一耦合器设置在压电基板的第一边缘和第一和第二叉指换能器中的至少一个以便与第一和第二叉指换能器相邻。表面声波装置使用剪切水平表面波进行操作。

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