利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

155 条记录 (耗时 0.033 秒)

    Device for and method of calibrating optimum recording power for recordable optical disc recording apparatus
    1.
    发明授权
    Device for and method of calibrating optimum recording power for recordable optical disc recording apparatus 失效
    用于校准可记录光盘记录装置的最佳记录功率的装置和方法

    公开(公告)号：US5550799A

    公开(公告)日：1996-08-27

    申请号：US374872

    申请日：1995-01-19

    申请人： Akiyoshi Inoue ,  Shoji Taniguchi ,  Eisaku Kawano ,  Naoharu Yanagawa ,  Hiroshi Suzuki

    发明人： Akiyoshi Inoue ,  Shoji Taniguchi ,  Eisaku Kawano ,  Naoharu Yanagawa ,  Hiroshi Suzuki

    IPC分类号： G11B5/596 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/125

    CPC分类号： G11B7/126 ,  G11B7/0045

    摘要： A laser power calibration device installed in a recording device for recording information on an optical recording medium includes: laser unit for emitting and irradiating a laser beam on the optical recording medium to record FM video signal and EFM audio signal; unit for varying recording power of the laser beam and duty of recording signal for driving the laser unit independently of each other; unit for reading the FM video signal and EFM audio signal recorded on the optical recording medium; unit for detecting carrier level of the recorded FM video signal and error rate of recorded EFM audio signal; and unit for determining optimum recording power of the laser beam so that the carrier level is higher than a first predetermined value and the error rate is smaller than a second predetermined value.

    摘要翻译： 安装在用于在光学记录介质上记录信息的记录装置中的激光功率校准装置包括：用于在光学记录介质上发射和照射激光束以记录FM视频信号和EFM音频信号的激光单元; 用于改变激光束的记录功率的单元和用于驱动激光单元彼此独立的记录信号的占空比; 用于读取记录在光学记录介质上的FM视频信号和EFM音频信号的单元; 用于检测记录的FM视频信号的载波电平的单元和记录的EFM音频信号的错误率; 以及用于确定激光束的最佳记录功率的单元，使得载波电平高于第一预定值，并且误差率小于第二预定值。

    Read-write head of an magneto-optical disc player with both heads magnetically coupled together
    2.
    发明授权
    Read-write head of an magneto-optical disc player with both heads magnetically coupled together 失效
    具有磁头耦合在一起的磁光盘播放器的读写头

    公开(公告)号：US5321686A

    公开(公告)日：1994-06-14

    申请号：US952006

    申请日：1992-09-24

    申请人： Naoharu Yanagawa ,  Shoji Taniguchi

    发明人： Naoharu Yanagawa ,  Shoji Taniguchi

    IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B17/30 ,  G11B11/00

    CPC分类号： G11B11/10573

    摘要： A read-write head of a magneto-optical disc player has an optical head having an optical pickup, and a magnetic head having an electromagnet. Each of the optical head and the magnetic head is slidably held by guide members so as to be moved in a radial direction of an optical disc. Permanent magnets are mounted on both heads for attracting each other head. Thus, when one of the head moves, the other follows.

    摘要翻译： 磁光盘播放器的读写头具有具有光学拾取器的光学头和具有电磁体的磁头。 光学头和磁头中的每一个由引导构件可滑动地保持，以沿光盘的径向方向移动。 永磁体安装在两个头部上以吸引彼此的头部。 因此，当头中的一个移动时，另一个移动。

    Optical magnetic recording and reproducing system
    3.
    发明授权
    Optical magnetic recording and reproducing system 失效
    光学记录和再现系统

    公开(公告)号：US5093816A

    公开(公告)日：1992-03-03

    申请号：US606282

    申请日：1990-10-31

    申请人： Shoji Taniguchi ,  Naoharu Yanagawa

    发明人： Shoji Taniguchi ,  Naoharu Yanagawa

    IPC分类号： G11B11/10 ,  G11B11/105

    CPC分类号： G11B11/10534 ,  G11B11/10508 ,  G11B11/10515

    摘要： An optical magnetic recording system has a magnetic head for generating a magnetic field on a magneto-optical disk, and an optical head including a magnetic actuator is provided for irradiating a laser beam. A field cancellation magnet is attached to the back of the magnetic head for producing a magnetic force so as to cancel a leakage magnetic force of the magnetic actuator which affects recording of information. This positioning of the field cancellation magnet provides better compensation of the leakage field without affecting the modulating field of the magnetic head.

    Position detector for maintaining a fixed distance between two objects
    4.
    发明授权
    Position detector for maintaining a fixed distance between two objects 失效
    用于维护两个对象之间固定距离的位置检测器

    公开(公告)号：US5162661A

    公开(公告)日：1992-11-10

    申请号：US608926

    申请日：1990-11-05

    申请人： Katsuharu Sato ,  Shoji Taniguchi ,  Naoharu Yanagawa

    发明人： Katsuharu Sato ,  Shoji Taniguchi ,  Naoharu Yanagawa

    IPC分类号： G01B11/02 ,  G01D5/30 ,  G11B7/095 ,  G11B11/105

    CPC分类号： G01B11/026 ,  G01D5/30 ,  G11B11/10576 ,  G11B7/0956 ,  G01B2210/44

    摘要： A position detector includes: light emitting component for irradiating the surface of an object to be measured; two light receiving components for receiving light reflected by the measured surface, a distance from one of the light receiving components to the measured surface as viewed in a direction substantially perpendicular to the surface being different from a distance from the other of the light receiving components to the surface; calculating circuit for calculating a correction quantity for correcting the distances between the light receiving components and the surface, with the correction quantity being calculated on the basis of a difference between the output signals of the light receiving components; and, moving component for correcting the distances between the measured surface and the light receiving components in accordance with the correction quantity. A first embodiment has two light receiving components each spaced at different distances from the surface. A second embodiment has two light receiving components disposed between two light emitting components, or two light emitting components disposed between two light receiving components. A third embodiment has two light receiving components spaced at a same distance from the surface, but each spaced at different distances from a light emitting components.

    Position control system for a read-write head of a magneto-optical disc player having heads which move independently from each other
    5.
    发明授权
    Position control system for a read-write head of a magneto-optical disc player having heads which move independently from each other 失效
    用于具有彼此独立移动的磁头的磁光盘播放机的读写头的位置控制系统

    公开(公告)号：US5371725A

    公开(公告)日：1994-12-06

    申请号：US955373

    申请日：1992-10-01

    申请人： Naoharu Yanagawa ,  Shoji Taniguchi

    发明人： Naoharu Yanagawa ,  Shoji Taniguchi

    IPC分类号： G11B7/09 ,  G11B11/10 ,  G11B11/105 ,  G11B7/00 ,  G11B5/09 ,  G11B15/52 ,  G11B21/10

    CPC分类号： G11B11/10573

    摘要： A read-write head of a magneto-optical disc player has an optical head having an optical pickup, and a magnetic head having an electromagnet. The optical head and the magnetic head are each slidably held by guide members so as to be moved in a radial direction of an optical disc. A motor is mounted on each head for moving the head along the guide member. A relative position between both heads at a position where both heads oppose each other is detected, and both heads are moved along the guide members, maintaining the relative position.

    摘要翻译： 磁光盘播放器的读写头具有具有光学拾取器的光学头和具有电磁体的磁头。 光头和磁头各自被引导构件可滑动地保持，以沿光盘的径向方向移动。 电动机安装在每个头部上，用于沿着引导构件移动头部。 检测在两个头部彼此相对的位置处的两个头部之间的相对位置，并且两个头部沿着引导构件移动，保持相对位置。

    Information Recording Device and Method, and Recording Control Computer Program
    7.
    发明申请
    Information Recording Device and Method, and Recording Control Computer Program 有权
    信息记录装置和方法以及记录控制计算机程序

    公开(公告)号：US20080043584A1

    公开(公告)日：2008-02-21

    申请号：US11795199

    申请日：2006-01-13

    申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

    发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/08511 ,  G11B2007/0013

    摘要： In an information recording medium including at least a first recording layer (L0 layer) capable of recording information and a second recording layer (L1 layer) capable of recording information, an information recording device (300) records information in a predetermined area (12) of the second recording layer by a laser beam which has passed through a transmission area (11) of the first recording layer. The information recording medium (300) includes recording means (302, etc.) for recording the information in the first recording layer or the second recording layer, judgment means for judging whether an unrecorded amount indicating the size of the unrecorded area in the radial direction in the transmission area is smaller than a predetermined amount, and control means used when the unrecorded area is judged to be smaller than the predetermined amount, for controlling the recording means to record information in the predetermined area.

    摘要翻译： 在包括能够记录信息的至少第一记录层（L0层）和能够记录信息的第二记录层（L1层）的信息记录介质中，信息记录装置（300）在预定区域（12）中记录信息， 的第二记录层通过已经穿过第一记录层的透射区域（11）的激光束。 信息记录介质（300）包括用于将信息记录在第一记录层或第二记录层中的记录装置（302等），判断装置，用于判断表示径向未记录区域的尺寸的未记录量 在所述传输区域中小于预定量，以及当所述未记录区域被判断为小于所述预定量时使用的控制装置，用于控制所述记录装置在所述预定区域中记录信息。

    Information recording device and method, and recording control computer program
    9.
    发明授权
    Information recording device and method, and recording control computer program 有权
    信息记录装置和方法，以及记录控制计算机程序

    公开(公告)号：US07885162B2

    公开(公告)日：2011-02-08

    申请号：US11795199

    申请日：2006-01-13

    申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

    发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/08511 ,  G11B2007/0013

    摘要： In an information recording medium including at least a first recording layer (L0 layer) capable of recording information and a second recording layer (L1 layer) capable of recording information, an information recording device (300) records information in a predetermined area (12) of the second recording layer by a laser beam which has passed through a transmission area (11) of the first recording layer. The information recording medium (300) includes recording means (302, etc.) for recording the information in the first recording layer or the second recording layer, judgment means for judging whether an unrecorded amount indicating the size of the unrecorded area in the radial direction in the transmission area is smaller than a predetermined amount, and control means used when the unrecorded area is judged to be smaller than the predetermined amount, for controlling the recording means to record information in the predetermined area.

    摘要翻译： 在包括能够记录信息的至少第一记录层（L0层）和能够记录信息的第二记录层（L1层）的信息记录介质中，信息记录装置（300）在预定区域（12）中记录信息， 的第二记录层通过已经穿过第一记录层的透射区域（11）的激光束。 信息记录介质（300）包括用于将信息记录在第一记录层或第二记录层中的记录装置（302等），判断装置，用于判断表示径向未记录区域的尺寸的未记录量 在所述传输区域中小于预定量，以及当所述未记录区域被判断为小于所述预定量时使用的控制装置，用于控制所述记录装置在所述预定区域中记录信息。