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    • 44. 发明授权
    • Digital servo system for rotating member
    • 用于旋转构件的数字伺服系统
    • US4243921A
    • 1981-01-06
    • US933911
    • 1978-08-15
    • Masaaki TamuraShigeo Tanaka
    • Masaaki TamuraShigeo Tanaka
    • G11B15/467G05B11/26H02P23/00
    • H02P23/186Y10S388/901Y10S388/912
    • A digital servo system for a rotating member which detects a difference between phases of a reference signal and a signal representing the rotation phase of the rotating member thereby to control its rotation in accordance with the phase difference. Comparison is made by a digital rotation phase comparator between points of time at which first and second predetermined counts are made by a clock pulse counter which is cleared for each period of the reference signal and a point of time at which the rotation phase information signal of the rotating member is produced. When the rotation phase signal appears during an interval between the first and second counts, a latch signal is generated in synchronization with the rotation phase signal to cause an instantaneous count between the first and second counts of the counter to be loaded into a latch circuit. A pulse width modulator generates a pulse train whose width corresponds to the latched count; and the rotation of the rotation member is controlled in accordance with a DC output voltage level of a driving circuit which corresponds to the pulse width of the pulse width modulated signal.
    • 一种用于旋转构件的数字伺服系统,其检测参考信号的相位和表示旋转构件的旋转相位的信号之间的差异,从而根据相位差来控制其旋转。 在由参考信号的每个周期清除的时钟脉冲计数器进行第一和第二预定计数的时间点之间的数字旋转相位比较器进行比较,以及基准信号的旋转相位信息信号的时间点 产生旋转构件。 当在第一和第二计数之间的间隔期间出现旋转相位信号时,与旋转相位信号同步地产生锁存信号,以使计数器的第一和第二计数之间的瞬时计数被加载到锁存电路中。 脉冲宽度调制器产生宽度对应于锁存计数的脉冲串; 根据与脉冲宽度调制信号的脉冲宽度对应的驱动电路的直流输出电压来控制旋转部件的旋转。
    • 47. 发明申请
    • MANUFACTURING METHOD OF A SINTERED POWDER MOLDED BODY
    • 烧结粉末成型体的制造方法
    • US20100119767A1
    • 2010-05-13
    • US12648632
    • 2009-12-29
    • Shigeo Tanaka
    • Shigeo Tanaka
    • B32B3/06
    • B28B1/24B22F3/22B22F3/225B22F2998/00B28B7/342C04B35/638C04B2235/6022C04B2235/94Y10T428/24025Y10T428/31678
    • A sintering compound containing a sinterable powder and a binder removable in a debinding step is injected into a metal mold set provided with a sintering compound injecting mold, in a sintering compound molding step (S104). An add-on forming compound which becomes removable or separable from the sintering compound injection molded body in the debinding step or the sintering step is injected into the metal mold set provided with an add-on mold in an add-on forming step (S102). The sintering compound injection molded body and the add-on are formed integrally with each other in the metal mold set. The integral formation of the add-on and the sintering compound injection molded body enables to prevent damage during release from the mold and make easy to handle the injection molded body.
    • 在烧结复合成型工序(S104)中,将含有可烧结粉末和在脱脂工序中除去的粘合剂的烧结体注入到设置有烧结体注射模具的金属模具组中。 在脱脂步骤或烧结步骤中将与烧结复合物注射成型体相脱离或分离的附加成型化合物在附加成型步骤(S102)中注入设置有附加模具的金属模具组中, 。 烧结复合注射成型体和附加体在金属模具组中彼此一体地形成。 添加剂和烧结复合物注射成型体的整体形成能够防止从模具脱模时的损伤,并且易于处理注射成型体。
    • 49. 发明申请
    • Bone density measuring device
    • 骨密度测量装置
    • US20090131799A1
    • 2009-05-21
    • US11918988
    • 2006-04-21
    • Shigeo TanakaMasamichi NogawaKenichi Yamakoshi
    • Shigeo TanakaMasamichi NogawaKenichi Yamakoshi
    • A61B6/00
    • A61B5/4509A61B5/0059G01N21/359G01N21/4795G01N21/49G01N2201/0623G01N2201/0627
    • A small and inexpensive, noninvasive bone density measuring device is provided. A measuring part of the bone density measuring device is constituted by a light emitter 120, which emits near-infrared light, and a light receiver 130, which receives light via a bone of a measuring subject, arranged in a holder 110. Bone density is measured by inserting an arm, for example, in the holder 110 and measuring light absorption (absorbance) by the arm bone. The light emitter 120 and the light receiver 130 are connected to a control unit 140. The control unit 140 controls the light emitter 120 to emit light, inputs a measured value from the light receiver 130, and displays it as bone density. In order to remove the influence of light from the background or difference in bone thickness, ratio of absorbance between two wavelengths is preferably employed. In order to obtain light of twowavelengths, use ofasingle light receiving element is possible by making two light emitting elements (LEDs) alternately emit light even in the case of using two light emitting elements.
    • 提供了一种小而廉价的非侵入性骨密度测量装置。 骨密度测量装置的测量部分由发射近红外光的光发射器120和经由测量对象的骨骼接收光的光接收器130布置在保持器110中。骨密度为 例如通过将臂插入保持器110中并通过臂骨测量光吸收(吸光度)来测量。 光发射器120和光接收器130连接到控制单元140.控制单元140控制发光器120发光,从光接收器130输入测量值,并将其显示为骨密度。 为了消除背景光或骨厚差的影响,优选采用两种波长之间的吸光度比。 为了获得二波长的光,即使在使用两个发光元件的情况下,也可以通过使两个发光元件(LED)交替地发光来使用单个光接收元件。
    • 50. 发明授权
    • Protection method, control circuit, and battery unit
    • 保护方法,控制电路和电池单元
    • US07276881B2
    • 2007-10-02
    • US11260177
    • 2005-10-28
    • Masafumi OkumuraShigeo Tanaka
    • Masafumi OkumuraShigeo Tanaka
    • H02J7/00
    • H01M10/425H02H7/18H02J7/0026H02J2007/0037H02J2007/004
    • A protection method for preventing battery cells from over-discharging and being overcharged, a control circuit, and a battery unit are provided. In the protection method, when a set signal “1” is supplied to a set terminal, a flip-flop outputs “1”. The gate of a discharge control FET then becomes “1”, so that the discharge control FET is OFF regardless of a discharge control signal supplied from a voltage monitor circuit. When a reset signal “1” is supplied to a reset terminal, the flip-flop outputs “0”. The discharge control FET is then switched on and off in accordance with the output of a discharge control circuit of the voltage monitor circuit. In this manner, battery cells connected to an electronic device do not over-discharge, even when they are left unused for a long period of time. Thus, the battery unit can be prevented from deteriorating and shortening the life thereof.
    • 提供一种用于防止电池过度放电和过充电的保护方法,控制电路和电池单元。 在保护方法中,当设定信号“1”被提供给设定端子时,触发器输出“1”。 然后,放电控制FET的栅极变为“1”,使得放电控制FET不管从电压监视电路提供的放电控制信号如何都是OFF的。 当复位信号“1”被提供给复位端时,触发器输出“0”。 然后,根据电压监视电路的放电控制电路的输出,对放电控制FET进行接通和断开。 以这种方式,连接到电子设备的电池单元即使长时间不使用也不会过度放电。 因此,能够防止电池单元劣化,缩短寿命。