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1. 发明授权

US06281618B1 Vibrating gyroscope 有权
标题翻译：振动陀螺仪
公开(公告)号：US06281618B1
公开(公告)日：2001-08-28
申请号：US09550872
申请日：2000-04-17
申请人： Nobuyuki Ishitoko , Katsumi Fujimoto
发明人： Nobuyuki Ishitoko , Katsumi Fujimoto
IPC分类号： H01L4108
CPC分类号： G01C19/5719
摘要： A vibrating gyroscope includes two planar vibrating plates arranged to oppose each other. The two vibrating plates vibrate under buckling vibration mode and a second-order bending vibration mode which is degenerated with or close to the buckling vibration mode. The vibrating gyroscope detects Coriolis force by detecting displacements in amplitude balance of the second-order bending vibration modes generated when an angular rotation velocity around an axis parallel to surfaces of the vibrating plates is applied.
摘要翻译：振动陀螺仪包括彼此相对布置的两个平面振动板。两个振动板在弯曲振动模式和在屈曲振动模式下退化或接近的二阶弯曲振动模式振动。振动陀螺仪通过检测当施加平行于振动板表面的轴的角度旋转速度时产生的二阶弯曲振动模式的振幅平衡中的位移来检测科里奥利力。

2. 发明授权

US06590316B2 Vibrator, vibrating gyroscope, and electronic apparatus using the vibrating gyroscope 失效
公开(公告)号：US06590316B2
公开(公告)日：2003-07-08
申请号：US10027181
申请日：2001-12-26
申请人： Masato Koike , Katsumi Fujimoto , Nobuyuki Ishitoko
发明人： Masato Koike , Katsumi Fujimoto , Nobuyuki Ishitoko
IPC分类号： H01L4108
CPC分类号： G01C19/5656
摘要： The present invention provides a piezoelectric vibrator, in which there is no significant change in the characteristics even when depole occurs due to heat shock and the like. The piezoelectric vibrator includes a first piezoelectric substrate having split electrodes formed on one main surface thereof and a second piezoelectric substrate having a common electrode formed on one main surface thereof. The remaining main surfaces of both piezoelectric substrates are bonded to each other via an intermediate electrode. The material of the first piezoelectric substrate differs from the material of the second piezoelectric substrate. As a result, the difference (longitudinal DF) between a resonant frequency and an anti-resonant frequency in a longitudinal vibration of the piezoelectric vibrator substantially coincides with the difference (transverse DF) between a resonant frequency and an anti-resonant frequency in a transverse vibration thereof.

3. 发明授权

US5635786A Vibrating gyroscope 失效
标题翻译：振动陀螺仪
公开(公告)号：US5635786A
公开(公告)日：1997-06-03
申请号：US455717
申请日：1995-05-31
申请人： Katsumi Fujimoto , Takeshi Nakamura , Kazuhiro Ebara , Nobuyuki Ishitoko
发明人： Katsumi Fujimoto , Takeshi Nakamura , Kazuhiro Ebara , Nobuyuki Ishitoko
IPC分类号： G01C19/56 , G01C19/5649 , G01C19/5663 , H01L41/08
CPC分类号： G01C19/5642
摘要： A vibrating gyroscope 10 includes a regular quadrangular prism-shaped vibrator 12. The vibrator 12 includes, a first piezoelectric base plate 14a and a second piezoelectric base plate 14b, which are polarized reversely each other in a direction of thickness. On a main surface of the first piezoelectric base plate 14a, two divided electrodes 16, 16 are formed in laterally spaced relationship. On a main surface of the second piezoelectric base plate 14b, a common electrode 18 is formed. Between the first piezoelectric base plate 14a and the second piezoelectric base plate 14b, a dummy electrode 20 is formed. One output terminal of an oscillation circuit 30 as a driving means is connected to the two divided electrodes 16, 16 of the vibrator 12, via resistors 32a and 32b. Another output terminal of the oscillation circuit 30 is connected to the common electrode 18 of the vibrator 12. The two divided electrodes 16, 16 of the vibrator 12 are respectively connected to a non-inverting input terminal and an inverting input terminal of a differential amplifier circuit 36 as a detecting means, via resistors 34a and 34b.
摘要翻译：振动陀螺仪10包括规则的四边形棱柱形振动器12.振动器12包括在厚度方向上彼此反向偏振的第一压电基板14a和第二压电基板14b。在第一压电基板14a的主表面上，以横向间隔的关系形成两个分开的电极16,16。在第二压电基板14b的主表面上形成公共电极18。在第一压电基板14a和第二压电基板14b之间形成有虚拟电极20。作为驱动装置的振荡电路30的一个输出端子经由电阻器32a和32b连接到振动器12的两个分割电极16,16。振荡电路30的另一个输出端子连接到振动器12的公共电极18.振动器12的两个分开的电极16,16分别连接到差分放大器的非反相输入端子和反相输入端子电路36作为检测装置，通过电阻34a和34b。

4. 发明授权

US06288478B1 Vibrating gyroscope 失效
标题翻译：振动陀螺仪
公开(公告)号：US06288478B1
公开(公告)日：2001-09-11
申请号：US09086025
申请日：1998-05-28
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： H04L4108
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。

5. 发明授权

US6089087A Method for adjusting the temperature characteristic of a vibrating gyroscope 失效
标题翻译：调整振动陀螺仪温度特性的方法
公开(公告)号：US6089087A
公开(公告)日：2000-07-18
申请号：US940229
申请日：1997-09-30
申请人： Katsumi Fujimoto , Nobuyuki Ishitoko
发明人： Katsumi Fujimoto , Nobuyuki Ishitoko
IPC分类号： G01C19/56 , G01C19/5663 , G01C19/00
CPC分类号： G01C19/5663
摘要： A vibrating gyroscope includes a vibration member in which first and second piezoelectric substrates are joined together. On the outside main surface of the first piezoelectric substrate, a first external electrode divided into six electrode sections is formed. On the outside main surface of the second piezoelectric substrate, a second external electrode is formed. By removing a part of the electrode sections disposed at the center, a capacitance difference C(L)-C(R) between the capacitance C(L) formed between one of the electrode sections disposed at the center and the second external electrode, and the capacitance C(R) formed between another electrode section disposed at the center and the second external electrode is adjusted.
摘要翻译：振动陀螺仪包括其中第一和第二压电基片连接在一起的振动部件。在第一压电基板的外侧主面上，形成分割成六个电极部的第一外部电极。在第二压电基板的外侧主表面上形成第二外部电极。通过去除设置在中心的电极部分的一部分，在设置在中心的一个电极部分和第二外部电极之间形成的电容C（L）之间的电容差C（L）-C（R）和调节在设置在中心的另一个电极部分与第二外部电极之间形成的电容C（R）。

6. 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。

7. 发明授权

US6058777A Vibrating gyroscope including a pair of piezoelectric bodies with electrically floating interface 失效
标题翻译：振动陀螺仪包括一对具有电浮动接口的压电体
公开(公告)号：US6058777A
公开(公告)日：2000-05-09
申请号：US26388
申请日：1998-02-19
申请人： Katsumi Fujimoto , Kazuhiro Ebara , Nobuyuki Ishitoko
发明人： Katsumi Fujimoto , Kazuhiro Ebara , Nobuyuki Ishitoko
IPC分类号： G01C19/56 , G01C19/5649 , G01P9/00 , H01L41/08
CPC分类号： G01C19/5642
摘要： A vibrating gyroscope includes a vibrating unit and a driving unit for driving the vibrating unit. The vibrating unit includes at least a pair of piezoelectric bodies stacked and polarized in a stacked direction thereof such that polarizing directions of the piezoelectric bodies are opposed to each other. An interface between the piezoelectric bodies is electrically floating with respect to a reference potential. The driving circuit receives at least one feedback signal from the vibrating unit and outputs to the vibrating unit a driving signal which has substantially the same phase as the feedback signal.
摘要翻译：振动陀螺仪包括振动单元和用于驱动振动单元的驱动单元。所述振动单元包括至少一对压电体，所述至少一对压电体在其堆叠方向上堆叠并极化，使得所述压电体的偏振方向彼此相对。压电体之间的界面相对于参考电位电浮动。驱动电路从振动单元接收至少一个反馈信号，并向振动单元输出与反馈信号基本相同的驱动信号。

8. 发明授权

US06680559B2 Vibration gyroscope and electronic device using the same 有权
标题翻译：振动陀螺仪和电子设备使用相同
公开(公告)号：US06680559B2
公开(公告)日：2004-01-20
申请号：US10107281
申请日：2002-03-26
申请人： Nobuyuki Ishitoko , Katsumi Fujimoto
发明人： Nobuyuki Ishitoko , Katsumi Fujimoto
IPC分类号： H01L4108
CPC分类号： G01C19/5663
摘要： A vibration gyroscope includes a vibrator base that supports a vibrator in a hollow portion of the base and includes a frame-shaped portion. Protrusion portions are provided on the inner wall of the frame-shaped portion which defines a stopper that restricts displacement of the vibrator beyond a desired distance. The frame-shaped portion and the protrusion portions are integrally formed by a two-color molding method to define a single unitary member.
摘要翻译：振动陀螺仪包括振动器基座，其在基座的中空部分中支撑振动器并且包括框形部分。突出部分设置在框架部分的内壁上，其限定了将振动器的位移限制在期望距离之外的止动件。框状部分和突出部分通过双色模制方法整体形成，以限定单个整体构件。

9. 发明授权

US06418789B1 Vibrating gyroscope 有权
标题翻译：振动陀螺仪
公开(公告)号：US06418789B1
公开(公告)日：2002-07-16
申请号：US09499957
申请日：2000-02-08
申请人： Nobuyuki Ishitoko , Katsumi Fujimoto
发明人： Nobuyuki Ishitoko , Katsumi Fujimoto
IPC分类号： G01C1902
CPC分类号： G01C19/5719
摘要： A vibrating gyroscope includes: a support; four vibrating arms, four weights and excitation and detection elements. Each of the four vibrating arms has a first end and a second end in a longitudinal direction, and the four vibrating arms are fixed to the support at the respective first ends in the longitudinal direction such that four vibrating arms are radially arranged in a single plane with the adjacent arms making an angle of about 90 degrees. The four weights are fixed to the support so as to be arranged radially between the respective adjacent vibrating arms. The excitation and detection elements vibrate the vibrating arms under a bending mode within the single plane and output signals generated by the vibration of the vibrating arms.
摘要翻译：振动陀螺仪包括：支架; 四个振动臂，四个重量和激励和检测元件。四个振动臂中的每一个具有沿纵向方向的第一端和第二端，并且四个振动臂在纵向方向上的相应的第一端处固定到支撑件，使得四个振动臂在单个平面中径向布置相邻的臂形成大约90度的角度。四个重物固定在支撑件上，从而径向设置在各个相邻的振动臂之间。励磁和检测元件在单个平面内以弯曲模式振动振动臂，并输出由振动臂振动产生的信号。

10. 发明授权

US5557045A Vibrating gyroscope 失效
标题翻译：振动陀螺仪
公开(公告)号：US5557045A
公开(公告)日：1996-09-17
申请号：US372914
申请日：1995-01-17
申请人： Nobuyuki Ishitoko , Akira Kumada
发明人： Nobuyuki Ishitoko , Akira Kumada
IPC分类号： G01P9/04 , G01C19/56 , G01C19/00 , G01P3/44 , G01P9/00 , G01P15/08
CPC分类号： G01C19/5663
摘要： The vibrating gyroscope includes, for example, a regular triangular prism-shaped vibrating body. Piezoelectric elements are respectively formed to the three side faces of the vibrating body. An oscillation circuit is connected between two piezoelectric elements and the other piezoelectric element. Two supporting members made of metal wire are mounted to vivinity of nodal points of the vibrating body in order to support the vibrating body. Both ends of the supporting members are fixed to a supporting board. A holding portion for holding a part of the vibrating body is formed on the supporting board. The holding portion is formed by a opening or a recess. The vibrating body together with an oscillation circuit and detection circuit can be mounted on the supporting board. The opening or the recess wherein a part of the vibrating body is held can have a extended portion to enlarge exposing portion of two side faces of the vibrating body.
摘要翻译：振动陀螺仪包括例如规则的三角形棱柱形振动体。压电元件分别形成在振动体的三个侧面上。一个振荡电路连接在两个压电元件和另一个压电元件之间。为了支撑振动体，将金属线制的两个支撑构件安装在振动体的节点上。支撑构件的两端固定在支撑板上。在支撑板上形成有用于保持振动体的一部分的保持部。保持部由开口或凹部形成。振动体与振荡电路和检测电路一起安装在支撑板上。其中保持振动体的一部分的开口或凹部可以具有用于使振动体的两个侧面的暴露部分扩大的延伸部分。

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