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1. 发明授权

US5914495A Inspection apparatus for inspecting a defect of an optical disc 失效
标题翻译：用于检查光盘缺陷的检查装置
公开(公告)号：US5914495A
公开(公告)日：1999-06-22
申请号：US823415
申请日：1997-03-25
申请人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato , Yoshitake Yanagisawa
发明人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato , Yoshitake Yanagisawa
IPC分类号： G01N21/88 , G01N21/89 , G01N21/95 , G11B7/26 , G01N21/86
CPC分类号： G01N21/9506
摘要： A disc defect inspection apparatus which can detect a defect of a disc, such as an optical disc, with high accuracy. A disc defect inspection apparatus includes a rotating portion for rotating a disc, laser radiating optical portion for radiating laser lights on the disc rotated by the rotating portion under predetermined scanning conditions, sensors for detecting reflected laser lights from the disc, and a memory in which output signals of the sensors are stored together with address data generated in unison with the scanning of laser lights. Sensor outputs indicative of address positions of the disc are stored in the memory and sensor outputs near the address positions are read out and a defect of the disc is detected on the basis of a spatial difference among the nearby sensor outputs and the sensor output of the center address position.
摘要翻译：可以高精度地检测光盘等光盘的缺陷的光盘缺陷检查装置。盘缺陷检查装置包括用于旋转盘的旋转部分，用于在预定扫描条件下由旋转部旋转的盘上的激光照射激光辐射光学部分，用于检测来自盘的反射激光的传感器，以及存储器，其中传感器的输出信号与激光扫描一致生成的地址数据一起存储。表示盘的地址位置的传感器输出被存储在存储器中，并且读出地址位置附近的传感器输出，并且基于附近的传感器输出和传感器输出之间的空间差来检测盘的缺陷中心地址位置。

2. 发明授权

US5946032A Camera shake correcting apparatus having damping coils for yaw and pitch 失效
标题翻译：具有用于偏航和俯仰的阻尼线圈的相机抖动校正装置
公开(公告)号：US5946032A
公开(公告)日：1999-08-31
申请号：US823150
申请日：1997-03-25
申请人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato
发明人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato
IPC分类号： G02B27/64 , H04N5/232 , H04N5/228 , G03B17/00 , H04N5/225 , H04N9/07
CPC分类号： H04N5/23283 , G02B27/646 , H04N5/23248 , H04N5/23258 , G03B2205/003 , G03B2205/0069 , G03B2217/005
摘要： A camera shake correcting apparatus includes a variable angular prism assembly, a microcomputer to produce signals for driving the variable angular prism assembly, prism actuators, vertical angle sensors, angular velocity sensors for detecting an angular velocity caused by the camera shaking, and damping coils. The variable angular prism assembly is driven by a signal obtained by subtracting detected results of the vertical angle sensors from detected results of the angular velocity sensors. A damping coil is used to produce rotational angular velocity signals so that a nonlinearity of the prism can be alleviated. The phase margin of the servo characteristic of the prism drive system is increased, so that the camera shake correcting apparatus can be generally independent of variations in values and dimensions that occur in mass-production manufacturing operations and free of dependency on temperature characteristics.
摘要翻译：相机抖动校正装置包括可变角度棱镜组件，用于产生用于驱动可变角棱镜组件的信号的微型计算机，棱镜致动器，垂直角度传感器，用于检测由相机抖动引起的角速度的角速度传感器和阻尼线圈。可变角棱镜组件由通过从角速度传感器的检测结果中减去检测结果而获得的信号来驱动。阻尼线圈用于产生旋转角速度信号，从而可以减轻棱镜的非线性。棱镜驱动系统的伺服特性的相位裕度增加，因此相机抖动校正装置通常可以独立于批量生产制造操作中发生的值和尺寸的变化，并且不依赖于温度特性。

3. 发明授权

US5623305A Camera shake correcting apparatus having damping coils for yaw and pitch 失效
标题翻译：具有用于偏航和俯仰的阻尼线圈的相机抖动校正装置
公开(公告)号：US5623305A
公开(公告)日：1997-04-22
申请号：US331339
申请日：1994-10-28
申请人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato
发明人： Shigeki Ishizuka , Koichi Sato , Akira Nikami , Mitsuru Sato
IPC分类号： G02B27/64 , H04N5/232 , H04N5/228
CPC分类号： H04N5/23283 , G02B27/646 , H04N5/23248 , H04N5/23258 , G03B2205/003 , G03B2205/0069 , G03B2217/005
摘要： A camera shake correcting apparatus includes a variable angular prism assembly, a microcomputer to produce signals for driving the variable angular prism assembly, prism actuators, vertical angle sensors, angular velocity sensors for detecting an angular velocity caused by the camera shaking, and damping coils. The variable angular prism assembly is driven by a signal obtained by subtracting detected results of the vertical angle sensors from detected results of the angular velocity sensors. A damping coil is used to produce rotational angular velocity signals so that a nonlinearity of the prism can be alleviated. The phase margin of the servo characteristic of the prism drive system is increased, so that the camera shake correcting apparatus can be generally independent of variations in values and dimensions that occur in mass-production manufacturing operations and free of dependency on temperature characteristics.
摘要翻译：相机抖动校正装置包括可变角度棱镜组件，用于产生用于驱动可变角棱镜组件的信号的微型计算机，棱镜致动器，垂直角度传感器，用于检测由相机抖动引起的角速度的角速度传感器和阻尼线圈。可变角棱镜组件由通过从角速度传感器的检测结果中减去检测结果而获得的信号来驱动。阻尼线圈用于产生旋转角速度信号，从而可以减轻棱镜的非线性。棱镜驱动系统的伺服特性的相位裕度增加，因此相机抖动校正装置通常可以独立于批量生产制造操作中发生的值和尺寸的变化，并且不依赖于温度特性。

4. 发明授权

US3942042A Pulse waveform generator circuit 失效
标题翻译：脉冲波形发生器电路
公开(公告)号：US3942042A
公开(公告)日：1976-03-02
申请号：US509307
申请日：1974-09-25
申请人： Akira Nikami
发明人： Akira Nikami
IPC分类号： H03K3/037 , H03K3/00 , G11B21/08
CPC分类号： H03K3/037
摘要： A pulse waveform generator circuit which is suitable for integrated circuit construction is disclosed. The invention functions as a square-wave generator for switching the outputs of tape scanning heads in a video tape recorder. The circuit includes: a first pulse generator for producing a first pulse signal with a predetermined pulse width and a second pulse generator which produces a second pulse signal with predetermined pulse width between two of the adjacent first pulse signals; a flip-flop circuit set by the first pulse signal at its leading edge and reset by the second pulse signal at its leading edge; a first logic circuit which is supplied with an output signal from the flip-flop circuit and the second pulse signal to produce a third pulse signal which is held in one state from the trailing edge of the second pulse signal to the leading edge of the first pulse signal; and a second logic circuit which is supplied with the third and first pulse signals to produce a desired pulse signal. In this case, the desired pulse signal is reversed at each of the trailing edges of the first and second pulse signals.
摘要翻译：公开了一种适用于集成电路结构的脉冲波形发生电路。本发明用作用于切换磁带录像机中的磁带扫描头的输出的方波发生器。该电路包括：用于产生具有预定脉冲宽度的第一脉冲信号的第一脉冲发生器和产生相邻第一脉冲信号之间的两个之间的预定脉冲宽度的第二脉冲信号的第二脉冲发生器; 触发器电路在其前沿由第一脉冲信号设置，并在其前沿由第二脉冲信号复位; 第一逻辑电路被提供有来自触发器电路的输出信号和第二脉冲信号，以产生第三脉冲信号，该第三脉冲信号从第二脉冲信号的后沿保持在一个状态到第一脉冲信号的前沿脉冲信号以及第二逻辑电路，其被提供有第三和第一脉冲信号以产生期望的脉冲信号。在这种情况下，期望的脉冲信号在第一和第二脉冲信号的每个后沿被反转。

5. 发明授权

US5386182A Apparatus for driving a stepping motor 失效
标题翻译：用于驱动步进电机的装置
公开(公告)号：US5386182A
公开(公告)日：1995-01-31
申请号：US61270
申请日：1993-05-17
申请人： Akira Nikami
发明人： Akira Nikami
IPC分类号： H02P7/29 , H02P7/00 , H02P8/12
CPC分类号： H02P8/12 , H02P7/04
摘要： A motor driving PWM signal generating circuit (1) includes a read-only memory (ROM) (2) in which there is stored data of a PWM signal corresponding to 0 to 180 degrees of a sine wave. A signal representative of an arbitrary rotary phase is supplied to the generating circuit (1) which generates a PWM output signal having a duty ratio of 50% to 100% corresponding to a sine wave of, for example, 0.degree. to 180.degree. degrees. Also, the generating circuit (1) generated signals representative of 0.degree. to 180.degree. degrees of the rotary phase and 180.degree. to 360.degree. degrees of the rotary phase as DIR output signals. The PWM signal and the DIR output signal from the generating circuit (1) are supplied to an exclusive-OR circuit (3). A signal from the exclusive-OR circuit (3) is supplied to an IN input of an H-type bridge driver circuit (4). Therefore, a level difference portion (crossover distortion) on the inverted portion of the driving signal can be removed and the motor can be driven smoothly without discontinuity.
摘要翻译：电机驱动PWM信号发生电路（1）包括只读存储器（ROM）（2），其中存储了对应于正弦波0至180度的PWM信号的数据。代表任意旋转相位的信号被提供给生成电路（1），该生成电路产生对应于例如0°至180°的正弦波的占空比为50％至100％的PWM输出信号。此外，发电电路（1）产生代表旋转相位0°至180°，旋转相位180°至360°的信号作为DIR输出信号。来自发生电路（1）的PWM信号和DIR输出信号被提供给异或电路（3）。来自异或电路（3）的信号被提供给H型桥式驱动器电路（4）的IN输入端。因此，可以去除驱动信号的反转部分的电平差部分（交叉失真），并且可以平滑地驱动电机而不间断地。

6. 发明授权

US4283737A Video signal reproducing apparatus with circuit avoiding skew distortion when operated at abnormal speed and/or direction 失效
标题翻译：具有在异常速度和/或方向操作时避免扭曲失真的电路的视频信号再现装置
公开(公告)号：US4283737A
公开(公告)日：1981-08-11
申请号：US78774
申请日：1979-09-25
申请人： Akira Nikami
发明人： Akira Nikami
IPC分类号： H04N5/93 , G11B5/027 , G11B15/14 , G11B15/18 , H04N5/783 , H04N9/793 , H04N9/87 , H04N5/795
CPC分类号： H04N9/87 , G11B15/14 , G11B15/1808 , H04N5/783 , H04N9/793
摘要： In an apparatus for reproducing video signals recorded in successive, obliquely extending parallel tracks on a record tape with the horizontal synchronizing pulses of video signals recorded in nearby tracks being offset from each other by a predetermined distance in the direction along the tracks, and wherein at least one reproducing head is repeatedly moved across the tape in a scanning path which conforms to the direction along the tracks for reproducing from only one of the tracks at a time when the tape is driven or transported at a standard or normal reproducing speed, but which is at an angle to the direction along the tracks to cause the head to reproduce from one of the tracks and then from another of the nearby tracks when the tape is driven at a different reproducing speed; a delay circuit is provided for delaying the reproduced video signals by an amount corresponding to the offset distance between the horizontal synchronizing pulses recorded in nearby tracks, and, when operating with such different reproducing speed, a switching circuit alternately provides, as the output of the reproducing apparatus, the video signals as reproduced by the head and the delayed reproduced video signals, respectively, with the state of the switching circuit being changed-over each time the reproducing head, in moving along the scanning path, moves from one to the other of the nearby tracks.
摘要翻译：在用于再现记录在记录带上的连续的倾斜延伸的平行轨道中的视频信号的装置中，记录在附近轨道中的视频信号的水平同步脉冲在沿轨道的方向彼此偏移预定距离，并且其中在但是至少一个再现头在扫描路径中被重复地移动穿过磁带，该扫描路径符合沿磁道的方向，以便在磁带以标准或正常的再现速度被驱动或传输时仅从一个轨道再现，但是哪个与沿着轨道的方向成一定角度，以便当磁带以不同的再现速度驱动时，头部从一个磁道再从另一个附近磁道再现; 提供延迟电路，用于将再现的视频信号延迟与记录在附近磁道中的水平同步脉冲之间的偏移距离相对应的量，并且当以不同的再现速度操作时，开关电路交替地提供作为再现装置，分别由头部再现的视频信号和延迟再现的视频信号，每当重放头在沿着扫描路径移动的同时，切换电路的状态被切换时，一个移动到另一个的附近轨道。

7. 发明授权

US4081728A DC motor control circuit 失效
标题翻译：直流电机控制电路
公开(公告)号：US4081728A
公开(公告)日：1978-03-28
申请号：US707041
申请日：1976-07-20
申请人： Akira Nikami , Choei Kuriki
发明人： Akira Nikami , Choei Kuriki
IPC分类号： H02P1/16 , H02P1/18 , H02P23/00 , H02P29/00 , H02P5/06
CPC分类号： H02P1/18 , H02P23/186 , Y10S388/901 , Y10S388/915 , Y10S388/916 , Y10S388/921
摘要： A DC motor control circuit is provided with a starter circuit responsive to the frequency of a rotational signal derived from a signal generator attached to the DC motor. The starter circuit includes a monostable multivibrator which ceases to operate when the frequency of the rotational signal exceeds a predetermined frequency.
摘要翻译：直流电动机控制电路具有响应于从连接到直流电动机的信号发生器得到的旋转信号的频率的起动电路。起动电路包括单稳态多谐振荡器，其在旋转信号的频率超过预定频率时停止工作。

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