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    • 3. 发明授权
    • Method and apparatus for measuring displacement of object using GPS
    • 使用GPS测量物体位移的方法和装置
    • US06434509B1
    • 2002-08-13
    • US09599470
    • 2000-06-22
    • Atsushi TsuchiyaTeruyuki KatoYukihiro TeradaMasao KinoshitaHideshi KakimotoHiroshi Isshiki
    • Atsushi TsuchiyaTeruyuki KatoYukihiro TeradaMasao KinoshitaHideshi KakimotoHiroshi Isshiki
    • G01B1102
    • G01S19/43G01S5/0063
    • Relative vector between an observation receiver located at an object and a reference receiver are divided into long period variation components not dependent on object displacements and short period variation components dependent on object displacements, and the short period variation component are represented by x, y and z axis components of unit vectors from the reference receiver toward the satellite. Then, carrier phases between at least three GPS satellites and the receivers are measured, and these measurement data are passed through a band pass filter to extract short period phase components corresponding to the short period variation components of the relative vectors. Next, at least three receiver to receiver single differences between the receivers and the GPS satellites are found for the short period phase components, and axial components of the short period variation components of the relative vectors are found by computation based on said at least three receiver to receiver single differences.
    • 位于物体的观测接收器与参考接收机之间的相对矢量被分为不依赖于物体位移的长周期变化分量和取决于物体位移的短周期变化分量,短周期变化分量由x,y和z表示 从参考接收机到卫星的单位向量的轴分量。 然后,测量至少三个GPS卫星与接收机之间的载波相位,并将这些测量数据通过带通滤波器,以提取与相对矢量的短周期变化分量相对应的短周期相位分量。 接下来,对于短周期相位分量,找到接收机和GPS卫星之间的至少三个接收机到接收机单个差异,并且通过基于所述至少三个接收机的计算找到相对向量的短周期变化分量的轴向分量 接收单一差异。
    • 5. 发明申请
    • DC-DC converter and power supply apparatus
    • DC-DC转换器和电源设备
    • US20080013345A1
    • 2008-01-17
    • US11729264
    • 2007-03-27
    • Junji TakeshitaYukihiro Terada
    • Junji TakeshitaYukihiro Terada
    • H02M3/335
    • H02M3/156H02J7/0065H02M2001/0093
    • Disclosed is a DC-DC converter including: an inductance element and a rectifier element connected in series between a voltage input terminal to accept input direct current voltage and a first output terminal; a switching element connected between a connection node of the inductance element and the rectifier element and a reference potential point; and a controlling circuit to form a signal to control on/off of the switching element, wherein the controlling circuit controls on/off of the switching element to control current through the inductance element and a voltage applied to the voltage input terminal to accept the input direct current voltage is output to a second output terminal as a reference potential of a circuit at a latter stage, so that an output voltage is controllable from a lower to higher voltage than the input direct current voltage without switching step-up and step-down operations.
    • 公开了一种DC-DC转换器,包括:串联连接在电压输入端子以接受输入直流电压和第一输出端子之间的电感元件和整流元件; 连接在电感元件的连接节点与整流元件之间的开关元件和基准电位点; 以及控制电路,以形成用于控制所述开关元件的导通/截止的信号,其中所述控制电路控制所述开关元件的导通/截止以控制通过所述电感元件的电流和施加到所述电压输入端子的电压以接受所述输入 直流电压输出到作为后级电路的基准电位的第二输出端子,使得输出电压可以从低于输入直流电压的低电压到高电压控制,而无需切换升压和降压 操作。
    • 7. 发明授权
    • Stepping motor
    • 步进电机
    • US08288900B2
    • 2012-10-16
    • US12845112
    • 2010-07-28
    • Takeshi MatsunoYoshiya YamamuraHiroaki ItahashiShigeki MiyajiYukihiro Terada
    • Takeshi MatsunoYoshiya YamamuraHiroaki ItahashiShigeki MiyajiYukihiro Terada
    • H02K37/00
    • H02K37/14H02K1/145H02K2213/03
    • A stepping motor includes a rotor assembly and a stator assembly including two stator units axially coupled to each other. The two stator units each include a pair of yokes which each include a base portion and a plurality of pole teeth extending from the base portion and which are disposed such that each of the pole teeth of one yoke and each of the pole teeth of the other yoke are arranged alternately in the circumferential direction. The pole teeth are shaped symmetric and each include a pair of slant sides inclined so as to become closer to each other with an increase of distance from the base portion, and the slant sides of adjacent pole teeth are located close to each other wherein a magnetic pole gap between the adjacent pole teeth pole teeth is about 0.2 times as large as the thickness of the pole teeth.
    • 步进马达包括转子组件和定子组件,该定子组件包括彼此轴向耦合的两个定子单元。 两个定子单元各自包括一对轭,每个轭包括基部和从基部延伸的多个极齿,并且设置成使得一个轭的每个极齿和另一个轭的每个极齿 轭在圆周方向上交替布置。 极齿形状对称,并且每个包括一对倾斜侧面,其倾斜使得随着距离基部的距离的增加而彼此更接近,并且相邻极齿的倾斜侧面彼此靠近定位,其中磁性 相邻极齿极齿之间的极间距离是极齿的厚度的约0.2倍。
    • 9. 发明授权
    • Relative position measurement system using satellite
    • 卫星相对位置测量系统
    • US07450061B2
    • 2008-11-11
    • US11666255
    • 2004-11-10
    • Yukihiro TeradaKeiji ItoTakenori AbeTakashi Fujita
    • Yukihiro TeradaKeiji ItoTakenori AbeTakashi Fujita
    • G01S5/00
    • G01S19/43G01S19/04G01S19/14G01S19/35G01S19/44G01S19/51
    • A position measurement system for measuring displacement of an observation station viewed from a reference station by receiving radio waves from satellites by these stations, and performing relative position measurement between the stations, having: a short period displacement measurement section for measuring a short period displacement component in each of the stations through independent position measurement; a relative position computing section for performing relative position measurement between said stations; a long period position computing section for inputting a short period displacement component measured by the short period displacement measurement section, a relative position determined by the relative position computing section and an absolute position from the reference station, and determining the absolute position including a long period displacement component by removing the short period displacement component measured by each of the stations; and a radio communication device installed on each of the stations, for transmitting/receiving data to/from another station.
    • 一种位置测量系统,用于通过从这些站接收来自卫星的无线电波来测量从参考站观察的观测站的位移,并且进行站之间的相对位置测量,具有:用于测量短周期位移分量的短周期位移测量单元 在每个车站通过独立的位置测量; 相对位置计算部,用于在所述站之间执行相对位置测量; 用于输入由所述短周期位移测量部测量的短周期位移分量的长周期位置计算部,由所述相对位置计算部确定的相对位置和所述参考站的绝对位置,以及确定包括长周期 通过去除由每个站测量的短周期位移分量; 以及安装在每个站上的用于向/从另一个站发送/接收数据的无线电通信装置。
    • 10. 发明申请
    • THERMAL HEAD DRIVING CIRCUIT
    • 热头驱动电路
    • US20080180511A1
    • 2008-07-31
    • US11968261
    • 2008-01-02
    • Tomomitsu OoharaYukihiro Terada
    • Tomomitsu OoharaYukihiro Terada
    • B41J2/35
    • B41J2/35
    • A disclosed thermal head driving circuit includes an inverter type drive circuit including a p-channel MOS transistor and a first n-channel MOS transistor, and configured to have a driving signal of a rectangular wave provided at gates of the p-channel MOS transistor and the first n-channel MOS transistor to invert the driving signal; a power MOS transistor configured to have provided, at its gate, the inverted drive signal output from the inverter type drive circuit to drive a thermal head connected to its drain; a first resistance connected between a drain of the p-channel MOS transistor and a drain of the first n-channel MOS transistor; and a second resistance connected between a junction point between the first resistance and the drain of the first n-channel MOS transistor, and the gate of the power MOS transistor.
    • 公开的热敏头驱动电路包括:反相器型驱动电路,包括p沟道MOS晶体管和第一n沟道MOS晶体管,并且被配置为具有设置在p沟道MOS晶体管的栅极处的矩形波的驱动信号;以及 第一n沟道MOS晶体管反相驱动信号; 功率MOS晶体管,被配置为在其栅极处提供从逆变器型驱动电路输出的反相驱动信号,以驱动连接到其漏极的热敏头; 连接在p沟道MOS晶体管的漏极和第一n沟道MOS晶体管的漏极之间的第一电阻; 以及连接在第一n沟道MOS晶体管的第一电阻和漏极之间的接合点与功率MOS晶体管的栅极之间的第二电阻。