公开(公告)号：US5838668A

公开(公告)日：1998-11-17

申请号：US622701

申请日：1996-03-26

Applicant: Kazuhiro Okada ,  Hideki Hieida ,  Koichiro Takeda

Inventor： Kazuhiro Okada ,  Hideki Hieida ,  Koichiro Takeda

IPC: H04L1/16 ,  H04B7/185 ,  H04B7/204 ,  H04L1/00 ,  H04L1/18 ,  H04J3/24

CPC classification number: H04H60/11 ,  H04B7/18523 ,  H04L1/1887 ,  H04L1/189 ,  H04L1/1809 ,  H04L2001/0092 ,  H04L2001/0093

Abstract: A satellite broadcast communications system, in which a host station sends packet-multiplexed signals to a plurality of terminal stations via a communications satellite, specifically improving efficiency in data retransmission operations without sacrificing the channel capacity of the satellite communications link. Broadcast schedule transmission means transmits the broadcast schedule, which contains the title and transmission time of each transmission data, to every terminal station via the communications satellite. Based on the broadcast schedule, composite information transmission means broadcasts various data to the terminal stations. Broadcast schedule reception means receives the broadcast schedule, and based on the received broadcast schedule, desired information reception means selectively receives desired information at the scheduled transmission time. Further, vacant time slot detection means examines the broadcast schedule to find vacant time slots in which no transmission is scheduled, and broadcast schedule production means rearranges the broadcast schedule so that the data once transmitted be retransmitted in those vacant time slots.

Abstract translation: 一种卫星广播通信系统，其中主机站经由通信卫星向多个终端站发送分组多路复用信号，具体地提高数据重传操作的效率，而不牺牲卫星通信链路的信道容量。 广播时间表发送装置通过通信卫星将包含每个发送数据的标题和发送时间的广播时间表发送到每个终端站。 基于广播时间表，复合信息发送装置向终端广播各种数据。 广播时间表接收装置接收广播时间表，并且根据所接收的广播时间表，期望的信息接收装置在调度的发送时间期间有选择地接收期望的信息。 此外，空闲时隙检测装置检查广播调度以找到其中没有调度传输的空闲时隙，并且广播调度生成装置重新排列广播调度，使得一旦发送的数据在那些空闲时隙中被重新发送。

公开(公告)号：US5682000A

公开(公告)日：1997-10-28

申请号：US701964

申请日：1996-08-23

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01L1/16 ,  G01L5/16 ,  G01P15/09 ,  G01P15/18 ,  G01R33/02 ,  G01L3/00

CPC classification number: G01L5/167 ,  G01P2015/084 ,  Y10S73/04

Abstract: The periphery of a disk having flexibility is fixed to a sensor casing, and a force applied to the central portion is detected. A doughnut disk-shaped piezoelectric element is positioned on the upper surface of the disk, and upper electrode layers indicated by patterns of D1 to D6 are formed on the upper surface of the piezoelectric element. Further, lower electrode layers similarly having pattern of D1 to D6 are formed on the lower surface of the piezoelectric element, and the lower surface of the lower electrode layer is fixed on the upper surface of the disk. Six detection elements D1 to D6 are formed each of which is constituted by a of upper and lower electrode layers and a portion of piezoelectric element put therebetween. Thus, force components exerted at an origin defined in the central portion of the disk in respective axes directions of X, Y, Z can be detected based on charges produced in detection elements D1, D2, detection elements D3, D4, and detection elements D5, D6, respectively.

Abstract translation: 具有柔性的盘的周边固定到传感器外壳，并且检测施加到中心部分的力。 圆环形压电元件位于盘的上表面上，在压电元件的上表面上形成由D1至D6的图案表示的上电极层。 此外，在压电元件的下表面上形成类似地具有D1至D6图案的下电极层，并且下电极层的下表面固定在盘的上表面上。 形成六个检测元件D1至D6，每个检测元件由上下电极层和放置在其间的压电元件的一部分构成。 因此，可以基于在检测元件D1，D2，检测元件D3，D4和检测元件D5中产生的电荷来检测施加在盘的中心部分中的原点在X，Y，Z的各个轴线方向上的力分量 ，D6。

公开(公告)号：US5646346A

公开(公告)日：1997-07-08

申请号：US366026

申请日：1994-12-29

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01C19/56 ,  G01P3/44

CPC classification number: G01P15/0907 ,  G01C19/56 ,  G01P15/0922 ,  G01P15/11 ,  G01P15/123 ,  G01P15/125 ,  G01P15/18 ,  G01P2015/084

Abstract: An angular velocity sensor has a flexible substrate and an opposed, fixed substrate supported at their peripheries by a sensor casing. An oscillator is fixed on the lower surface of the flexible substrate. Five lower electrodes are formed on the upper surface of the flexible substrate. Five upper electrodes are formed on the lower surface of the fixed substrate so as to oppose the lower electrodes. For sensing an angular velocity about the X-axis, an a.c. voltage is applied across a predetermined pair of the opposed electrodes to cause the oscillator to oscillate in the Z-axis direction, whereby a Coriolis force proportional to the angular velocity is applied to the oscillator to displace it in the Y-axis direction. As a result, the distance between the opposed electrodes in the positive Y-axis direction becomes smaller, and the distance between the opposed electrodes in the negative Y-axis direction becomes greater, which changes their capacitances to detect the Coriolis force and, thereby, determine angular velocity. It is similarly possible to detect angular velocities about the Y-axis and the Z-axis.

Abstract translation: 角速度传感器具有柔性基板和相对的固定基板，其在外周由传感器外壳支撑。 振荡器固定在柔性基板的下表面上。 在柔性基板的上表面上形成五个下电极。 在固定基板的下表面上形成五个上电极，以与下电极相对。 为了感测围绕X轴的角速度，a。 电压施加在预定的一对相对电极上，以使振荡器在Z轴方向上振荡，由此将与角速度成比例的科里奥利力施加到振荡器以使它在Y轴方向上移位。 结果，正Y轴方向上的相对电极之间的距离变小，并且在负Y轴方向上的相对电极之间的距离变大，这会改变其电容以检测科里奥利力， 确定角速度。 同样可以检测围绕Y轴和Z轴的角速度。

公开(公告)号：US5392658A

公开(公告)日：1995-02-28

申请号：US249817

申请日：1994-05-26

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01L5/16 ,  G01P15/09 ,  G01P15/125 ,  G01P15/18 ,  G01R33/038 ,  G01L5/04

CPC classification number: G01P15/125 ,  G01L5/165 ,  G01L5/167 ,  G01P15/0922 ,  G01P15/18 ,  G01R33/038 ,  G01P2015/084

Abstract: On the upper surface of a flexible substrate, four displacement electrodes are arranged. A fixed substrate is arranged thereabove, and fixed electrodes opposite to the displacement electrodes are respectively arranged on the fixed substrate. These displacement electrodes and the fixed electrodes form capacitance elements C1 to C4, respectively. A columnar working body is fixed on the lower surface of the flexible substrate. A bending is produced in the flexible substrate on the basis of an acceleration exerted thereon. As a result, capacitance values of the respective capacitance elements C1 to C4 vary. The capacitance values of the capacitance elements C1 to C4 are converted to respective voltage values V1 to V4. A component in the X-axis direction is obtained as Vx=(V1+V4)-(V2+V3), a component in the Y-axis direction is obtained as Vy=(V1+V2)-(V3+V4), and a component in the Z-axis direction is obtained as Vz=V1+V2+V+V4.

Abstract translation: 在柔性基板的上表面上布置有四个位移电极。 固定基板布置在其上方，并且与位移电极相对的固定电极分别设置在固定基板上。 这些位移电极和固定电极分别形成电容元件C1〜C4。 柱状工作体固定在柔性基板的下表面上。 基于施加在其上的加速度，在柔性基板中产生弯曲。 结果，各个电容元件C1至C4的电容值变化。 电容元件C1〜C4的电容值被转换成各自的电压值V1〜V4。 获得X轴方向的分量为Vx =（V1 + V4） - （V2 + V3），得到Yy轴方向的分量为Vy =（V1 + V2） - （V3 + V4） 获得Z轴方向的分量为Vz = V1 + V2 + V + V4。

公开(公告)号：US5365799A

公开(公告)日：1994-11-22

申请号：US984435

申请日：1993-03-05

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01L1/16 ,  G01L5/16 ,  G01L9/08 ,  G01P15/09 ,  G01P15/18 ,  G01R33/038 ,  G01L1/00

CPC classification number: G01L5/167 ,  G01L1/16 ,  G01P15/0922 ,  G01P15/18 ,  G01P2015/084

Abstract: A sensor for force, acceleration or magnetism is provided which can carries out high accuracy detection without temperature compensation and easily manufactured. The peripheral portion of a disk-shaped substrate (10) having flexibility is fixed to a sensor casing (60), and a working body (50) is connected to the center portion. With respect to the origin (O) within the substrate (10), an X, Y and Z three-dimensional coordinate system is defined, and four sets of detection elements (D1 to D4) are arranged. Respective detection elements are of a sandwich structure in which piezoelectric elements (21, 23) are put between upper electrodes (31 to 34) and lower electrodes (41 to 44). When a force Fx in the X-axis direction is applied to the working body (50) by application of an acceleration, the substrate (10) is bent, so positive or negative charges are produced in respective electrodes. How charges are produced depends upon the direction of an applied force, and a quantity of charges produced depends upon the magnitude of the applied force. Thus, it is possible to detect components in respective axial directions of an applied force on the basis of a pattern of charges produced.

Abstract translation: PCT No.PCT / JP92 / 00882 Sec。 371日期1993年3月5日 102（e）1993年3月5日PCT PCT 1992年7月9日PCT公布。 公开号WO93 / 02342 日期：1993年2月4日。提供用于力，加速度或磁力的传感器，其可以执行高精度检测而不需要温度补偿并且容易制造。 具有柔性的盘状基板（10）的周边部固定在传感器壳体（60）上，工作体（50）与中心部连接。 对于基板（10）内的原点（O），定义X，Y，Z三维坐标系，并配置四组检测元件（D1〜D4）。 各检测元件是将压电元件（21,23）放置在上电极（31〜34）和下电极（41〜44）之间的夹层结构。 当通过加速度将X轴方向的力Fx施加到工作体（50）时，基板（10）弯曲，因此在各个电极中产生正或负电荷。 如何产生电荷取决于施加的力的方向，产生的电荷量取决于所施加的力的大小。 因此，可以基于产生的电荷模式来检测施加力的各轴向的分量。

公开(公告)号：US5343765A

公开(公告)日：1994-09-06

申请号：US960545

申请日：1992-10-13

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01L5/16 ,  G01P15/09 ,  G01P15/125 ,  G01P15/18 ,  G01R33/038 ,  G01L5/04

CPC classification number: G01P15/125 ,  G01L5/165 ,  G01L5/167 ,  G01P15/0922 ,  G01P15/18 ,  G01R33/038 ,  G01P2015/084

Abstract: On the upper surface of a flexible substrate, four displacement electrodes are arranged. A fixed substrate is arranged thereabove, and fixed electrodes opposite to the displacement elctrodes are respectively arranged on the fixed substrate. These displacement electrodes and the fixed electrodes form capacitance elements C1 to C4, respectively. A columnar working body is fixed on the lower surface of the flexible substrate. A bending is produced in the flexible substrate on the basis of an acceleration exerted thereon. As a result, capacitance values of the respective capacitance elements C1 to C4 vary. The capacitance values of the capacitance elements C1 to C4 are converted to respective voltage values V1 to V4. A component in the X-axis direction is obtained as Vx=(V1+V4)-(V2+V3), a component in the Y-axis direction is obtained as Vy=(V1+V2)-(V3+V4), and a component in the Z-axis direction is obtained as Vz=V1+V2+V3+V4.

Abstract translation: 在柔性基板的上表面上布置有四个位移电极。 固定基板布置在其上方，并且与位移电极相对的固定电极分别设置在固定基板上。 这些位移电极和固定电极分别形成电容元件C1〜C4。 柱状工作体固定在柔性基板的下表面上。 基于施加在其上的加速度，在柔性基板中产生弯曲。 结果，各个电容元件C1至C4的电容值变化。 电容元件C1〜C4的电容值被转换成各自的电压值V1〜V4。 获得X轴方向的分量为Vx =（V1 + V4） - （V2 + V3），得到Yy轴方向的分量为Vy =（V1 + V2） - （V3 + V4） 得到Vz = V1 + V2 + V3 + V4的Z轴方向的分量。

公开(公告)号：US5263375A

公开(公告)日：1993-11-23

申请号：US765588

申请日：1991-09-25

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: B25J13/08 ,  B25J15/00 ,  G01L1/18 ,  G01L5/16 ,  G01L3/00

CPC classification number: G01L5/162 ,  B25J13/085 ,  B25J15/0009 ,  G01L1/18 ,  G01P2015/084

Abstract: There is disclosed an applied technology of an elementary sensor for sensing a force comprising a transducer for transforming a mechanical deformation to an electric signal, and a first strain generative body (20) including a supporting portion (21) and a working portion (23) connected to the transducer so as to allow the transducer to produce a mechanical deformation on the basis of a displacement relative to the supporting portion of the working portion. By further adding a second strain generative body (30) including a fixed portion (31) fixed at least with respect to the direction of a force to be detected, and a displacement portion (33) connected to the working portion of the first strain generative body, wherein the displacement portion is constructed to produce a displacement based on a given external force relative to the fixed portion to transmit the displacement thus produced to the working portion of the first strain generative body, a force detector applicable to a wide variety of measurement ranges can be realized. Moreover, by allowing the displacement portion to be elongated, a detector suitable for measurement of both force and moment can be provided. In addition, an embodiment to connect stylus (306) to the elementary sensor to apply it to a contact detector, and an embodiment to affix the elementary sensor at the hand of a robot to apply it to a gripper for robot are disclosed.

Abstract translation: 公开了用于感测包括用于将机械变形转换为电信号的换能器的力的基本传感器的应用技术，以及包括支撑部（21）和工作部（23）的第一应变生成体（20） 连接到换能器，以便允许换能器基于相对于工作部分的支撑部分的位移产生机械变形。 通过进一步添加包括固定部分（31）的第二应变生成体（30），固定部分（31）至少相对于待检测的力的方向固定;以及位移部分（33），其连接到第一应变生成器的工作部分 其中所述位移部分被构造成基于相对于所述固定部分的给定外力产生位移，以将如此产生的位移传递到所述第一应变生成体的所述工作部分，所述力检测器适用于各种各样的测量 范围可以实现。 此外，通过允许位移部分伸长，可以提供适合于测量力和力矩的检测器。 此外，公开了将触控笔（306）连接到基本传感器以将其应用于接触检测器的实施例，以及将机器人手上的基本传感器固定以将其应用于机器人的夹具的实施例。

公开(公告)号：US4967605A

公开(公告)日：1990-11-06

申请号：US295210

申请日：1988-12-19

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01L1/18 ,  G01L5/16 ,  G01P15/08 ,  G01P15/12 ,  G01P15/18 ,  G01R1/20 ,  G01R33/038

CPC classification number: G01P15/123 ,  G01L1/18 ,  G01L5/162 ,  G01P15/0802 ,  G01P15/18 ,  G01R1/203 ,  G01R33/038 ,  G01P2015/084 ,  H01L2224/48091 ,  H01L2924/10253

Abstract: A force detector is comprised of resistance elements having a piezo resistance effect such that electric resistance varies due to mechanical deformation, and formed on a single crystal substrate (10), and a strain generative body (20) having a supporting portion (21) and a working portion (23), thus allowing the resistance elements to produce a mechanical deformation on the basis of a displacement with respect to the supporting portion of the working portion. This force detector can detect a force applied to the working portion as changes in resistance values of the resistance elements. The plane on which resistance elements are to be formed on the single crystal substrate is selected so that piezo resistance coefficients in two directions perpendicular to each other exhibit peak. When a weight body (30) is connected to the working portion, it is possible to detect an acceleration acting on the weight body. Moreover, when a magnetic body (330) is connected to be working portion, it is possible to detect a magnetic force acting on the magnetic body. By using the detector system for acceleration in common to the detector system for magnetic force to perform a compensation computation, detection of a magnetic force which is not influenced by acceleration can be made. By devising an arrangement of resistance elements in either detector, it is possible to independently determine magnitudes of objects to be measured with respect to directions of the three-dimensional coordinate system, respectively.