公开(公告)号：US5499226A

公开(公告)日：1996-03-12

申请号：US163689

申请日：1993-12-09

申请人： Shinichi Ohta ,  Hiroto Kitai

发明人： Shinichi Ohta ,  Hiroto Kitai

IPC分类号： G11B7/005 ,  G11B20/10 ,  G11B20/14 ,  G11B5/00 ,  H04N5/76

CPC分类号： G11B20/10222 ,  G11B20/10009 ,  G11B20/1403 ,  G11B7/005

摘要： In an optical information reproduction apparatus, digital information recorded as an optical mark on an optical information recording medium is reproduced in the following manner. A light beam is applied to the recording medium, and the obtained reproduction signal is binarized. The binary reproduction signal is sampled by a sampling clock which is generated by a PLL control signal generator, and is synchronized with the binary reproduction signal so as to reproduce the digital information. The PLL control signal generator achieves synchronization based on the leading and trailing edges of a change point of the binary reproduction signal.

摘要翻译： 在光学信息再现装置中，以光学信息记录介质上记录为光学标记的数字信息以下述方式再现。 将光束施加到记录介质上，并将获得的再现信号二值化。 二进制再现信号由PLL控制信号发生器产生的采样时钟采样，并与二进制再现信号同步，以再现数字信息。 PLL控制信号发生器基于二进制再现信号的变化点的前沿和后沿实现同步。

公开(公告)号：US5042019A

公开(公告)日：1991-08-20

申请号：US545132

申请日：1990-06-27

申请人： Hiroto Kitai ,  Keiji Tsuchiya

发明人： Hiroto Kitai ,  Keiji Tsuchiya

IPC分类号： G11B21/08 ,  G11B7/0033 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/08541 ,  G11B7/0033 ,  G11B7/08535 ,  G11B7/0948

摘要： Disclosed is a method of seeking a desired track by scanning a recording medium having a plurality of tracks formed thereon by a light spot in a direction across the tracks, and counting track crossing signals detected from the reflected light or the transmitted light of the spot. In this method, of the track crossing signals, only those signals which are detected within a predetermined time inteval are counted as a correct track crossing signal. An apparatus for carrying out such a method is also disclosed.

摘要翻译： 公开了一种通过扫描其上形成有多个轨道的记录介质通过沿着轨道的方向上的光斑并且计算从反射光或点的透射光检测的轨道交叉信号来寻求所需轨迹的方法。 在这种方法中，在轨迹交叉信号中，仅将在预定时间间隔内检测到的那些信号计数为正确的轨迹交叉信号。 还公开了一种用于执行这种方法的装置。

公开(公告)号：US06394347B1

公开(公告)日：2002-05-28

申请号：US09189787

申请日：1998-11-12

申请人： Hiroto Kitai ,  Kengo Emoto

发明人： Hiroto Kitai ,  Kengo Emoto

IPC分类号： G06K700

CPC分类号： G06K19/07769 ,  G06K19/06009 ,  G06K19/0723

摘要： Information is recorded on or reproduced from a hybrid card having an optical recording region and a non-contact type IC memory region connected to a card-side antenna coil. The information recording and/or reproduction is effected by an apparatus including an optical head for scanning the optical recording region with a light beam, a control circuit for exerting tracking and focusing control on the light beam, an apparatus-side antenna coil to be disposed opposite to the card-side antenna coil, a reader/writer for storing information in or reading information from the IC memory region by way of electromagnetic induction coupling between the card-side antenna coil and the apparatus-side antenna coil, and a processing circuit for controlling the operation of the optical head, the control circuit and the reader/writer. The processing circuit controls the read/writer so as not to store information in nor read information from the IC memory region during the period there the control circuit is exerting tracking control or focusing control.

摘要翻译： 信息被记录在具有连接到卡侧天线线圈的光学记录区域和非接触型IC存储区域的混合卡上或从其再现。 信息记录和/或再现由包括用于用光束扫描光学记录区域的光学头的装置，用于对光束进行跟踪和聚焦控制的控制电路，待设置的装置侧天线线圈 与卡侧天线线圈相对的读卡器，用于通过卡侧天线线圈和装置侧天线线圈之间的电磁感应耦合来存储信息或从IC存储区域读取信息的读取器/写入器，以及处理电路 用于控制光头，控制电路和读/写器的操作。 处理电路控制读/写器，以便在控制电路正在进行跟踪控制或聚焦控制的时段期间不存储信息或从IC存储区读取信息。

公开(公告)号：US5600613A

公开(公告)日：1997-02-04

申请号：US329307

申请日：1994-10-26

申请人： Kazuaki Matsumoto ,  Hiroto Kitai

发明人： Kazuaki Matsumoto ,  Hiroto Kitai

IPC分类号： G06K7/015 ,  G11B19/20 ,  H01L41/04 ,  G11B7/00

CPC分类号： G11B19/20 ,  G06K7/015 ,  H02N2/062

摘要： In an optical information recording/reproducing apparatus, relative movement between an optical head and an optical information recording medium having a linear track is performed to cause a light beam irradiated by the optical head to follow the information track so as to effect recording/reproduction of information. The apparatus is provided with an ultrasonic wave motor for driving one of the recording medium and the optical head relative to each other. The ultrasonic wave motor is controlled to gradually decrease a drive velocity thereof at the end of a drive operation thereof and to gradually increase the drive velocity thereof at the beginning of the drive operation thereof by properly adjusting an amplitude of a drive signal to be supplied to the ultrasonic wave motor.

摘要翻译： 在光信息记录/再现装置中，执行光头与具有线性轨迹的光信息记录介质之间的相对运动，以使由光头照射的光束跟随信息轨迹，以便实现记录/再现 信息。 该装置设置有用于相对于彼此驱动记录介质和光学头之一的超声波马达。 控制超声波马达，以在其驱动操作结束时逐渐降低其驱动速度，并且通过适当地调整驱动信号的振幅来逐渐增加其驱动操作开始时的驱动速度 超声波电机。

公开(公告)号：US5350910A

公开(公告)日：1994-09-27

申请号：US137814

申请日：1993-10-19

申请人： Hiroto Kitai ,  Takashi Nakahara

发明人： Hiroto Kitai ,  Takashi Nakahara

IPC分类号： G11B19/10 ,  G11B19/14 ,  G11B19/20 ,  G06K13/067 ,  G06K7/10

CPC分类号： G11B19/14 ,  G11B19/10 ,  G11B19/20

摘要： An information processing apparatus according to the present invention includes a head for performing recording of information on and/or reproduction of information from a recording medium, a carriage on which the recording medium is loaded and being adapted to be movable relative to the head, a first detector for detecting a loading position of the recording medium with respect to the carriage, a second detector for detecting a position of the carriage in a moving direction and a circuit for outputting a signal representing that the medium is loaded at predetermined position with respect to the head on the basis of outputs from the first and second detectors.

摘要翻译： 根据本发明的信息处理设备包括用于从记录介质执行信息和/或再现信息的磁头，其上记录介质被装载并适于相对于磁头移动的滑架， 用于检测记录介质相对于滑架的装载位置的第一检测器，用于检测滑架在移动方向上的位置的第二检测器和用于输出表示介质相对于 基于来自第一和第二检测器的输出的头部。

公开(公告)号：US5163034A

公开(公告)日：1992-11-10

申请号：US664430

申请日：1991-03-04

申请人： Hiroto Kitai ,  Satoshi Shikichi ,  Hideki Hosoya

发明人： Hiroto Kitai ,  Satoshi Shikichi ,  Hideki Hosoya

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B23/00

CPC分类号： G11B7/09

摘要： A tracking device usable in an optical information recording and reproducing apparatus for an optical information record medium on which a plurality of tracks are arranged substantially parallel in a first direction. The device includes a light source, a first optical system for forming a small spot on the record medium by converging a light beam from the light source, a second optical system for obtaining the light beam from the record medium, a detecting device for receiving the light beam obtained by the second optical system to output a tracking signal, a vibrating device for vibrating the spot relative to the record medium in a second direction intersecting the first direction, a control device for effecting tracking control with respect to a track, and a selecting device for selectively actuating the vibrating device and the control device in accordance with the tracking signal from the detecting device.

摘要翻译： 一种可用于光学信息记录介质的光学信息记录和再现装置的跟踪装置，其中多个磁道在其上沿第一方向基本上平行布置。 该装置包括光源，用于通过会聚来自光源的光束在记录介质上形成小点的第一光学系统，用于获得来自记录介质的光束的第二光学系统，用于接收来自光源的检测装置 由第二光学系统获得的光束以输出跟踪信号;振动装置，用于在与第一方向相交的第二方向上相对于记录介质振动光点;控制装置，用于对轨道进行跟踪控制;以及 选择装置，用于根据来自检测装置的跟踪信号选择性地致动振动装置和控制装置。

公开(公告)号：US5101398A

公开(公告)日：1992-03-31

申请号：US728314

申请日：1991-07-08

申请人： Hiroshi Inoue ,  Hiroto Kitai

发明人： Hiroshi Inoue ,  Hiroto Kitai

IPC分类号： F16C29/00 ,  F16C39/06 ,  G11B7/085

CPC分类号： F16C39/063 ,  F16C29/00 ,  G11B7/08582

摘要： An optical information recording-reproducing apparatus includes an optical head unit, a holding device, a moving device and a guide shaft. The optical head unit effects recording and/or reproduction of information on an optical information recording medium. The holding device holds the optical information recording medium. The holding device includes a guide portion and a magnetic field producing device provided near the lower portion thereof. The moving device moves the holding device relative to the optical head unit. The guide shaft, formed of a magnetic material, guides the holding device for movement in a predetermined direction.

摘要翻译： 一种光学信息记录再现装置，包括光学头单元，保持装置，移动装置和导向轴。 光头单元在光学信息记录介质上实现信息的记录和/或再现。 保持装置保持光学信息记录介质。 保持装置包括在其下部附近设置的引导部和磁场产生装置。 移动装置相对于光头单元移动保持装置。 由磁性材料形成的引导轴引导保持装置沿预定方向移动。

公开(公告)号：US5990596A

公开(公告)日：1999-11-23

申请号：US105999

申请日：1998-06-29

申请人： Hiroto Kitai ,  Kazuaki Matsumoto

发明人： Hiroto Kitai ,  Kazuaki Matsumoto

IPC分类号： G06K1/12 ,  G06K7/10 ,  G06K7/14 ,  G11B7/0033 ,  G11B7/085 ,  G11B7/09 ,  G11B19/20 ,  H01L41/04 ,  H02N7/06

CPC分类号： H02N2/14 ,  G06K1/126 ,  G06K7/10633 ,  G06K7/14 ,  G11B19/2009 ,  G11B7/08529 ,  G11B7/08582 ,  G11B7/0904 ,  H02N2/0075 ,  H02N2/062 ,  G11B7/0033 ,  G11B7/0945

摘要： An information recording and/or reproducing apparatus, for performing recording and/or reproduction of information on a recording medium with a light beam emitted from an optical head, includes a vibration wave driving device for relatively moving the optical head to the medium, and a device for detecting information corresponding to a relation between a control signal for driving the vibration wave driving device and a relative movement velocity in the relative movement. The vibration wave driving device is controlled based on the information detected.

摘要翻译： 一种信息记录和/或再现装置，用于在具有从光学头发射的光束的记录介质上执行信息的记录和/或再现，包括用于将光学头相对移动到介质的振动波驱动装置，以及 用于检测与驱动所述振动波驱动装置的控制信号和所述相对运动中的相对移动速度之间的关系相对应的信息的装置。 基于检测到的信息来控制振动波驱动装置。

公开(公告)号：US5805540A

公开(公告)日：1998-09-08

申请号：US853797

申请日：1997-05-09

申请人： Hiroto Kitai ,  Kazuaki Matsumoto

发明人： Hiroto Kitai ,  Kazuaki Matsumoto

IPC分类号： G06K1/12 ,  G06K7/10 ,  G06K7/14 ,  G11B7/0033 ,  G11B7/085 ,  G11B7/09 ,  G11B19/20

CPC分类号： H02N2/14 ,  G06K1/126 ,  G06K7/10633 ,  G06K7/14 ,  G11B19/2009 ,  G11B7/08529 ,  G11B7/08582 ,  G11B7/0904 ,  H02N2/0075 ,  H02N2/062 ,  G11B7/0033 ,  G11B7/0945

摘要： An information recording and/or reproducing apparatuses for performing recording and/or reproduction of information on a recording medium with a light beam emitted from an optical head, includes a vibration wave driving device for relatively moving the optical head to the medium, and a device for detecting information corresponding to a relation between a control signal for driving the vibration wave driving device and a relative movement velocity in the relative movement. The vibration wave driving device is controlled based on the information detected.

摘要翻译： 一种用于在具有从光头发射的光束的记录介质上执行信息的记录和/或再现的信息记录和/或再现装置，包括用于将光头相对移动到介质的振动波驱动装置，以及装置 用于检测与用于驱动所述振动波驱动装置的控制信号和所述相对运动中的相对移动速度之间的关系相对应的信息。 基于检测到的信息来控制振动波驱动装置。

公开(公告)号：US4982394A

公开(公告)日：1991-01-01

申请号：US224758

申请日：1988-07-27

申请人： Shigeto Kanda ,  Hiroto Kitai ,  Etsuo Yamada

发明人： Shigeto Kanda ,  Hiroto Kitai ,  Etsuo Yamada

IPC分类号： G02B7/28 ,  G11B7/09 ,  G11B19/04

CPC分类号： G11B7/0033 ,  G11B19/04 ,  G11B7/0946

摘要： An optical information processing apparatus comprises an optical head having an optical system contained in a frame and effecting at least one of recording and reproduction of information by applying a light beam condensed by the optical system to a recording medium, a detector for detecting at least one of a tracking signal and a focusing signal, a controller for moving at least a portion of the optical system in accordance with at least one of the tracking signal and the focusing signal, a detector for detecting the postion of the moving portion of the optical system relative to the frame, a position controller for controlling the moving portion so as to be held in a predetermined position, on the basis of the output signal of the position detecting detector, a detector for detecting the abnormality of at least one of the tracking and focusing controls, and a switching device for alternatively operating the tracking and focusing controller and the position controller and rendering the tracking and focusing controller inoperative and operating the position controller when the abnormality of the tracking or focusing control is detected.