公开(公告)号：US5383174A

公开(公告)日：1995-01-17

申请号：US998736

申请日：1992-12-30

申请人： Tomiyuki Numata ,  Takeshi Yamaguchi ,  Takashi Iwaki

发明人： Tomiyuki Numata ,  Takeshi Yamaguchi ,  Takashi Iwaki

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0055 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0901 ,  G11B7/004 ,  G11B7/0925

摘要： An optical disk apparatus has a galvanic mirror error signal generation circuit for detecting that the galvanic mirror rotates more than an allowed limit value in directions P and Q. When it is detected by the galvanic mirror error signal generation circuit that the galvanic mirror rotates more than the allowed limit value, the light intensity of the light spot is changed from the recording-use (or erasing-use) light intensity into the reproducing-use light intensity. Accordingly, recording and erasing of information is always carried out by the projection of the light beam having a predetermined light intensity, thereby always providing a high grade of optical disk apparatus.

摘要翻译： 光盘装置具有电流反射镜误差信号发生电路，用于检测电流反射镜的旋转量是否大于允许的方向P和Q的极限值。当电流反射镜误差信号发生电路检测到电流反射镜旋转时， 允许的极限值，光斑的光强度从记录用（或擦除用）光强度改变为再现用光强度。 因此，信息的记录和擦除总是通过具有预定光强度的光束的投影进行，从而始终提供高等级的光盘装置。

公开(公告)号：US5335547A

公开(公告)日：1994-08-09

申请号：US793392

申请日：1992-02-04

申请人： Kichio Nakajima ,  Kazuo Honma ,  Yukio Sumiya ,  Takeshi Yamaguchi ,  Hiroshi Inamitsu ,  Eiji Minamiyama

发明人： Kichio Nakajima ,  Kazuo Honma ,  Yukio Sumiya ,  Takeshi Yamaguchi ,  Hiroshi Inamitsu ,  Eiji Minamiyama

IPC分类号： G01N29/22 ,  G01N29/265 ,  G01N29/30 ,  G01N29/10 ,  G01N29/26

CPC分类号： G01N29/30 ,  G01N29/22 ,  G01N29/265 ,  G01N2291/0289 ,  G01N2291/044

摘要： The distance sensor means and the ultrasonic probe are integrally coupled to each other in such a manner that a preceding scanning line to a current scanning line which is scanned by the ultrasonic probe is scanned by the distance sensor means, and the shape-measurement scanning operation of the distance sensor means and the flaw-detection scanning operation of the ultrasonic probe are performed in parallel with each other. A flaw detection area is divided into plural sub-areas, and plural storing areas are arranged in a mesh form in one-to-one correspondence to the sub-areas, only one shape information of position storing area including the flaw detection area being stored in each of the storing areas. The position and orientation of the ultrasonic probe at each flaw detection point is controlled using the stored shape information.

摘要翻译： PCT No.PCT / JP90 / 01054 Sec。 一九九二年二月四日 102（e）日期1992年2月4日PCT 1990年10月20日PCT PCT。 出版物WO91 / 02971 日期1991年3月7日。距离传感器装置和超声波探头以这样一种方式被一体地联接，使得由超声波探头扫描的当前扫描线的前一条扫描线被距离传感器装置扫描， 并且进行距离传感器装置的形状测量扫描操作和超声波探头的探伤扫描操作彼此并行进行。 探伤区域被划分为多个子区域，并且多个存储区域以网格形式与子区域一一对应地布置，仅存储包括探伤区域的位置存储区域的一个形状信息 在每个存储区域中。 使用存储的形状信息来控制在每个探伤点处的超声波探头的位置和方位。

公开(公告)号：US5335214A

公开(公告)日：1994-08-02

申请号：US923745

申请日：1992-07-28

申请人： Hirotsugu Matoba ,  Masaru Nomura ,  Takeshi Yamaguchi

发明人： Hirotsugu Matoba ,  Masaru Nomura ,  Takeshi Yamaguchi

IPC分类号： G11B7/085 ,  G11B21/08 ,  G11B7/09

CPC分类号： G11B7/08541

摘要： An optical recording medium driving apparatus has the first high-pass filter for outputting a low frequency component removed signal by removing a low frequency component from a reproduction signal varying depending on a reflected light beam from the optical recording medium. The low frequency component removed signal changes due to transient response just after an access operation starts. Zero voltage is inputted to the second high-pass filter during a tracking operation while a voltage having a negative polarity which is substantially the same amplitude as the AC component of the low frequency component removed signal is inputted to the second high-pass filter. The first high-pass filter has the same time constant as the second high-pass filter. Just after the access operation starts, the negative voltage has the same transient response as the output of the first high-pass filter. The output of the first high-pass filter is compared to the output of the second high-pass filter in order to have a binary signal of the binary logic condition. A land is discriminated from a groove according to the binary signal, thereby enabling to access a target track in accuracy.

摘要翻译： 光记录介质驱动装置具有第一高通滤波器，用于通过从根据来自光记录介质的反射光束变化的再现信号中去除低频分量来输出低频分量去除信号。 低频分量消除信号由于在访问操作开始后的瞬态响应而改变。 在跟踪操作期间将零电压输入到第二高通滤波器，而具有与低频分量去除信号的AC分量基本上相同幅度的负极性的电压被输入到第二高通滤波器。 第一高通滤波器具有与第二高通滤波器相同的时间常数。 在访问操作开始之后，负电压具有与第一高通滤波器的输出相同的瞬态响应。 将第一高通滤波器的输出与第二高通滤波器的输出进行比较，以便具有二进制逻辑条件的二进制信号。 根据二进制信号区域与凹槽区分开，从而能够准确地访问目标轨道。

公开(公告)号：US5313445A

公开(公告)日：1994-05-17

申请号：US840905

申请日：1992-02-25

申请人： Katsuo Wada ,  Miyuki Onishi ,  Junichiro Nakayama ,  Tomoyuki Miyake ,  Takashi Iwaki ,  Takeshi Yamaguchi

发明人： Katsuo Wada ,  Miyuki Onishi ,  Junichiro Nakayama ,  Tomoyuki Miyake ,  Takashi Iwaki ,  Takeshi Yamaguchi

IPC分类号： G11B7/12 ,  G11B11/105 ,  G11B17/32 ,  G11B19/20 ,  G11B21/02 ,  G11B21/21 ,  G11B23/03

CPC分类号： G11B19/20 ,  G11B11/10558 ,  G11B11/10576 ,  G11B11/1058 ,  G11B11/10595 ,  G11B17/32 ,  G11B21/21 ,  G11B23/0308 ,  G11B5/6005 ,  G11B7/122

摘要： An information reproducing apparatus which has a rotating driver for rotating a disc-shaped recording medium, a floating-type head for reproducing information recorded in the recording medium while floating above the disc-shaped recording medium that is being rotated by the rotating driver, and a suspension, made of an elastic member, for supporting the floating-type head. The information reproducing apparatus is characterized in that the floating-type head has a slider which is floated by an air flow that is directed near the surface of the rotating disc-shaped recording medium, and that the slider has a bevelled portion at one side that faces the outer edge of the disc-shaped recording medium such that any contact between the slider and the ridge that exists along the outer edge area of the disc-shaped recording medium is virtually eliminated. Since the slider is virtually free from contacting the ridge that exists along the outer edge area of the disc-shaped recording medium, the storage capacity of the disc-shaped recording medium can be more effectively used.

摘要翻译： 一种具有用于旋转盘形记录介质的旋转驱动器的信息再现装置，用于在浮动在由旋转驱动器旋转的盘形记录介质上方的同时再现记录在记录介质中的信息的浮动型头;以及 由弹性构件制成的用于支撑浮动头的悬架。 信息重放装置的特征在于，浮动式头部具有滑块，该滑块由朝向旋转的盘形记录介质的表面的空气流浮动，并且滑块在一侧具有倾斜部分， 面对盘状记录介质的外边缘，从而实质上消除了沿盘形记录介质的外边缘区域存在的滑块和凸脊之间的任何接触。 由于滑块实际上没有接触沿着盘形记录介质的外边缘区域存在的脊，所以可以更有效地使用盘形记录介质的存储容量。

公开(公告)号：US5166838A

公开(公告)日：1992-11-24

申请号：US498710

申请日：1990-03-26

申请人： Hiroshi Fuji ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima ,  Tsuneo Fujiwara

发明人： Hiroshi Fuji ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima ,  Tsuneo Fujiwara

IPC分类号： G11B20/10

CPC分类号： G11B20/10009

摘要： A digital signal reproduction apparatus includes a first differential circuit for differentiating a reproduction signal reproduced from a recording medium. This differential circuit outputs a first order differential signal. A second differential circuit differentiates the first order differential signal of the reproduction signal and outputs a second order differential signal. A comparator compares the second order differential signal with a predetermined level to produce a window signal. A peak detecting circuit detects zero-cross points in the first order differential signal and outputs a peak detecting signal. A gate gates the peak detecting signal with the window signal to output a reproduction data signal.

摘要翻译： 数字信号再现装置包括用于区分从记录介质再现的再现信号的第一差分电路。 该差分电路输出一阶差分信号。 第二差分电路区分再现信号的一阶差分信号并输出​​二阶微分信号。 比较器将二阶差分信号与预定电平进行比较以产生窗口信号。 峰值检测电路检测一阶差分信号中的零交叉点，并输出峰值检测信号。 门通过窗口信号对峰值检测信号进行门极输出再现数据信号。

公开(公告)号：US5146789A

公开(公告)日：1992-09-15

申请号：US621584

申请日：1990-12-03

申请人： Takashi Kato ,  Yutaka Morita ,  Takeshi Yamaguchi ,  Kazuo Tsuge ,  Kyoji Imamura ,  Yoshio Kawai ,  Hiroaki Hasegawa ,  Hiroyuki Amemori

发明人： Takashi Kato ,  Yutaka Morita ,  Takeshi Yamaguchi ,  Kazuo Tsuge ,  Kyoji Imamura ,  Yoshio Kawai ,  Hiroaki Hasegawa ,  Hiroyuki Amemori

IPC分类号： G01F1/115 ,  G01F15/00

CPC分类号： G01F1/115 ,  G01F15/008

摘要： A turbine flowmeter includes an impeller rotatably provided within a flow passage through which a fluid to be measured flows and comprising a rotary shaft which rotates together with the impeller, a pair of bearing part having bearing surfaces for axially supporting the rotary shaft, a holding part for holding the bearing part and provided on the flow passage, an oil accumulating space defined by an end portion of the rotary shaft and bearing surfaces facing respective sides of the end portion, an oil accumulating part provided on the holding part and filled with the lubricating oil to be supplied to the oil accumulating space, an oil supplying part for supplying oil to the oil accumulating space which part comprises a capillary part connected on one end direct to the oil accumulating part and communicated on the other end to the space, wherein the lubricating oil is supplied to the space via the oil supplying part from the oil accumulating part by capillarity introduced in the oil accumulating part and the space, and wherein the surface tension of the lubricating oil in the space is equal to or larger than the surface tension of the lubricating oil in the oil accumulating part.

公开(公告)号：US5010540A

公开(公告)日：1991-04-23

申请号：US225892

申请日：1988-07-29

申请人： Hiroshi Fuji ,  Tsuneo Fujiwara ,  Takashi Iwaki ,  Tomiyuki Numata ,  Kentaroh Tsuji ,  Shigemi Maeda ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima

发明人： Hiroshi Fuji ,  Tsuneo Fujiwara ,  Takashi Iwaki ,  Tomiyuki Numata ,  Kentaroh Tsuji ,  Shigemi Maeda ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima

IPC分类号： G11B19/247

CPC分类号： G11B19/247

摘要： An apparatus for recording and reproducing information on and from an optical disk includes a first control for producing a first control signal for controlling the rotational speed of a rotational driving apparatus, on the basis of the detected radial position; a judging apparatus which judges whether or not the reproduced signals are reproduced from a recorded region of the optical disk; a second control for producing a second control signal for controlling the rotational speed of the rotational driving apparatus, on the basis of the signals reproduced from the disk; and a switch apparatus which switches the circuit so that the rotational driving apparatus is controlled by the first control signal when the reproduced signals are not reproduced from a non-recorded region, and controlled by the second control signal when the reproduced signals are reproduced from a recorded region.

公开(公告)号：US4958337A

公开(公告)日：1990-09-18

申请号：US344530

申请日：1989-04-28

申请人： Toshihiro Yamanaka ,  Nobuyuki Horie ,  Shozou Kobayashi ,  Toshihisa Deguchi ,  Takeshi Yamaguchi ,  Shigemi Maeda ,  Yoshiki Nishioka ,  Teruki Sugiura

发明人： Toshihiro Yamanaka ,  Nobuyuki Horie ,  Shozou Kobayashi ,  Toshihisa Deguchi ,  Takeshi Yamaguchi ,  Shigemi Maeda ,  Yoshiki Nishioka ,  Teruki Sugiura

IPC分类号： G11B5/016 ,  G11B20/18

CPC分类号： G11B20/1816 ,  G11B5/016

摘要： A disk recording checking method in which recording is performed on a disk having radially different recording tracks each divided circumferentially into a plurality of sectors. The method employs a continuous writing device for continuously writing data onto a predetermined number of the sectors, and a continuous checking device for checking the data, while continuously reading the data from the predetermined number of the sectors. The method utilized checks both the number of errors in each code sequence and the total number of errors in each sector to determine if the data in the sector is valid.

摘要翻译： 一种磁盘记录检查方法，其中在具有径向不同的记录磁道的磁盘上执行记录，每个记录磁道分别沿周向分成多个扇区。 该方法采用连续写入装置，用于将数据连续地写入预定数量的扇区;以及连续检查装置，用于在从预定数量的扇区连续读取数据的同时检查数据。 所使用的方法检查每个代码序列中的错误数量和每个扇区中的错误总数，以确定扇区中的数据是否有效。

公开(公告)号：US4910479A

公开(公告)日：1990-03-20

申请号：US299013

申请日：1989-01-19

申请人： Hiroshi Fuji ,  Shigemi Maeda ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima

发明人： Hiroshi Fuji ,  Shigemi Maeda ,  Takeshi Yamaguchi ,  Kunio Kojima ,  Toshihisa Deguchi ,  Shigeo Terashima

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B11/105 ,  G11B19/02 ,  G11B20/10

CPC分类号： G11B20/10027 ,  G11B11/10515 ,  G11B11/10597 ,  G11B19/02 ,  G11B20/10009 ,  G11B7/005

摘要： An automatic gain control device for use in an optical memory device has a circuit for producing an amplification control signal which is fed back to a gain control amplifier through a sample-hold circuit. A pulse train detection circuit is provided for detecting the pulse train indicating that the data stored are a on the optical memory device is being playedback. When the pulse train is detected, the sample-hold circuit is made inactive so that the amplification control signal is directly fed back to the gain control amplifier, and when the pulse train ends, the sample-hold circuit is made active to hold the amplification control signal obtained at the end of the pulse train and to produce the amplification control signal held in the sample-hold circuit.

公开(公告)号：US4040823A

公开(公告)日：1977-08-09

申请号：US675528

申请日：1976-04-09

申请人： Takeshi Yamaguchi

发明人： Takeshi Yamaguchi

IPC分类号： B22F3/11 ,  C04B35/565 ,  C22C1/05 ,  F24H1/10 ,  H05B3/14 ,  B22F1/00

CPC分类号： B22F3/1121 ,  C04B35/565 ,  C22C1/051 ,  F24H1/101 ,  H05B3/148 ,  B22F2998/00 ,  H05B2203/021

摘要： A fluid-permeable electrically energized heat generating member of a desired shape, such as a rectangular brick, is formed by (1) mixing (a) about 87 to 94% by weight of a first material which contains about 80 to 95% by weight of SiC and about 5 to 20% by weight of a mixture of carbonyl iron, nickel-chromium alloy, cobalt and carbon; (b) about 5 to 10% by weight of a second material which contains about 75 to 95% by weight of an organic binder material, such as a linseed oil and about 5 to 25% by weight of a foaming material, such as methylene diphenyl isocyanate; and (c) about 0.2 to 3% by weight of a third material selected from the group consisting of polystyrene preformed powder, sawdust, wood flour, starch, corn flour and mixtures thereof; (2) placing the resultant mixture in a select mold and subjecting the mold to curing conditions sufficient to provide self-sustaining members composed of the foregoing mixture; (3) removing the self-sustaining members from the molds and subjecting them to a heat at a temperature in the range of about 250.degree. to 350.degree. F. for a period of time sufficient to render the bodies electrically conductive; (4) sintering the electrically conductive bodies as by passing a controlled electrical current through each member until a temperature in the range of about 1000.degree. to 1600.degree. F. is achieved within the member; and (5) metallizing terminal sides of each member, as by applying an aluminum layer thereon for contact with a suitable electrical circuit.

摘要翻译： 通过（1）混合（a）约87至94重量％的含有约80至95重量％的第一材料，形成所需形状的流体可渗透的电能发热元件，例如矩形砖 的SiC和约5-20重量％的羰基铁，镍 - 铬合金，钴和碳的混合物; （b）约5至10重量％的第二材料，其包含约75至95重量％的有机粘合剂材料，例如亚麻籽油和约5至25重量％的起泡材料，例如亚甲基 二苯基异氰酸酯; 和（c）约0.2至3重量％的选自聚苯乙烯预制粉末，锯屑，木粉，淀粉，玉米粉及其混合物的第三材料; （2）将所得混合物置于精选模具中，使模具处于足以提供由上述混合物构成的自持构件的固化条件; （3）将自支撑构件从模具中取出并在约250°至350°F范围内的温度下进行加热，持续一段时间足以使机体导电; （4）通过使受控的电流通过每个部件烧结导电体，直到在该部件内实现约1000°至1600°F范围内的温度; 以及（5）通过在其上施加与合适的电路接触的铝层来金属化每个构件的端子侧。