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51. 发明授权

EP0099576B1 Optical information processor 失效
标题翻译：光信息处理器
公开(公告)号：EP0099576B1
公开(公告)日：1989-07-12
申请号：EP83107110.5
申请日：1983-07-20
申请人： HITACHI, LTD.
发明人： Kaku, Toshimitsu , Tsunoda, Yoshito , Maeda, Takeshi , Nakamura, Shigeru
IPC分类号： G11B7/095 , G11B7/013 , G11B7/08
CPC分类号： G11B27/30 , G11B7/00745 , G11B7/09 , G11B7/094 , G11B7/0956 , G11B20/10203 , G11B2220/2537

52. 发明公开

EP0255403A3 Tracking servo device for optical storage disk 失效
标题翻译：跟踪用于光存储盘的伺服器件
公开(公告)号：EP0255403A3
公开(公告)日：1989-05-31
申请号：EP87306817.5
申请日：1987-07-31
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Yamamoto, Takemi Brother Kogyo K.K. , Suzuki, Makoto Brother Kogyo K.K.
IPC分类号： G11B7/09
CPC分类号： G11B7/1369 , G11B7/09 , G11B7/1384
摘要： A tracking servo device for changing a position on an optical storage disk (FD), at which the storage disk is irradiated by a light beam. The servo device is responsive to a tracking error signal (Vt) indicative of a deviation of the irradiated position on the disk with respect to a recording track provided on the disk. The tracking servo device includes an optical deflector element (20, 78, 88) having a waveguide (24, 8l, 9l) disposed in a path of the light beam, for guiding the light beam therethrough toward a surface of the optical storage disk, so as to deflect the light beam during propagation thereof through the waveguide. The device further has a deflection control arrangement (50, 84, 94) for controlling an angle of deflection of the light beam by the optical deflector element, based on the tracking error signal.

53. 发明公开

EP0239131A3 Tracking method for an optical recording medium 失效
标题翻译：光记录介质及其跟踪方法
公开(公告)号：EP0239131A3
公开(公告)日：1989-05-24
申请号：EP87104632.2
申请日：1987-03-27
申请人： CSK CORPORATION
发明人： Takahashi, Shunzo , Izawa, Shigeru , Suzuki, Hidefumi , Hasemi, Takashi
IPC分类号： G11B7/013 , G11B7/09 , G11B7/08
CPC分类号： G11B7/24085 , G11B7/0033 , G11B7/09 , G11B7/0903 , G11B7/0938
摘要： An optical recording medium having data storage section provided on the optical recording medium and data tracks and tracking lines formed in the data storage section for reading or writing of data. The optical recording medium of the invention comprises at least one band-form data recording region defined between each two adjacent tracking lines, each of said data recording regions having at least one data track at a position deviated from the center of the width of the data recording region. A tracking method for the medium, which comprises: setting, on the optical recording medium, a first optical domain for detecting the tracking line through relative movement with respect to the optical recording medium and a second optical domain for reading or writing which is movable in association with said first optical domain; and selecting the positional relationship between the first and the second optical domain so that when the first optical domain for track detection is tracking the tracking line, the second optical domain for the reading or writing is moving on and along the data track on the position deviated from the center of the width of the data recording region.

54. 发明公开

EP0186044A3 Photodetector 失效
标题翻译：光电探测器
公开(公告)号：EP0186044A3
公开(公告)日：1989-02-08
申请号：EP85115750.3
申请日：1985-12-11
申请人： SANYO ELECTRIC CO., LTD.
发明人： Ito, Kazuo , Kudo, Toshiyuki , Hama, Ritsuo
IPC分类号： H01L31/02 , G11B7/09 , H01L27/14
CPC分类号： H01L31/0203 , G11B7/09 , G11B7/13 , H01L25/042 , H01L31/02325
摘要： A photodetector comprising a photocell assembly including a substrate and at least one photocell formed on the substrate and having a light receiving face. The photocell assembly is completely embedded in a transparent resin molded body which has a light receiving surface defined therein so as to permit an incoming light incident thereupon to travel direct to the light receiving face of the photocell. The light receiving surface is roughened, recessed, raised, or inclined.
摘要翻译：一种光电检测器，包括光电池组件，该光电池组件包括基板和形成在基板上并具有光接收面的至少一个光电管。光电池组件完全嵌入透明树脂成型体中，该透明树脂成型体中具有限定在其中的光接收表面，从而允许入射到其上的入射光直接行进到光电晶体的光接收面。光接收表面被粗糙化，凹进，凸起或倾斜。

55. 发明公开

EP0301791A2 Light beam control arrangements for optical disc apparatus 失效
标题翻译： Vorrichtung zur Steuerung des Lichtstrahlsfürein optischesPlattengerät。
公开(公告)号：EP0301791A2
公开(公告)日：1989-02-01
申请号：EP88306829.8
申请日：1988-07-25
申请人： SONY CORPORATION
发明人： Wachi, Shigeaki
IPC分类号： G11B7/00 , G11B20/18 , G11B7/085
CPC分类号： G11B7/09 , G11B7/08517 , G11B7/08529
摘要： A light beam control arrangement for an optical disc apparatus in which a tracking servocontrol for a light beam projected onto an optical disc is performed in accordance with a tracking error signal and a reproduced information signal is obtained from a record track in the optical disc upon which the light beam impinges, which comprises a differentiation circuit (2) for differentiating one of the tracking error signal and the reproduced information signal to produce a differentiation output signal, a phase detection circuit for phase-detecting the differentiation output signal with the other of the tracking error signal and the reproduced information signal to produce a detection output signal, a low pass filter circuit for producing a DC output signal having a level varying in response to an amplitude of the detection output signal, and a signal mixing circuit for mixing the DC output signal with the tracking error signal so that the DC output signal is used, in addition to the tracking error signal, for the tracking servocontrol.
摘要翻译：一种用于光盘装置的光束控制装置，其中根据跟踪误差信号执行用于投射到光盘上的光束的跟踪伺服控制，并且从光盘上的记录轨道获得再现信息信号光束入射，其包括用于区分跟踪误差信号和再现信息信号之一的微分电路（2），以产生微分输出信号;相位检测电路，用于相位检测微分输出信号，另一个跟踪误差信号和再现信息信号以产生检测输出信号;低通滤波器电路，用于产生具有响应于检测输出信号的振幅而变化的电平的DC输出信号;以及信号混合电路，用于混合DC 输出信号与跟踪误差信号，使得除了轨道之外还使用直流输出信号误差信号，用于跟踪伺服控制。

56. 发明公开

EP0246919A3 Tracking servo device for data reading device 无效
标题翻译：跟踪用于数据读取装置的伺服装置
公开(公告)号：EP0246919A3
公开(公告)日：1988-11-30
申请号：EP87304586
申请日：1987-05-22
申请人： PIONEER ELECTRONIC CORPORATION
发明人： Konno, Yoshikiyo Pioneer Electronic Corp.
IPC分类号： G11B07/09
CPC分类号： G11B7/09
摘要： An optical tracking device including a servo loop. Two feedback optical signals in the transverse tracking direction are received in a pickup and their sum is taken. From the sum is extracted a dither signal introduced into the feedback loop and an offset signal indicating both the sign and magnitude of the offset from zero tracking is thereby produced. The offset signal is added to the difference of the feedback signals and this sum plus a dither frequency signal is fed back to drive the pickup.

57. 发明公开

EP0265695A2 Recording apparatus 失效
标题翻译：记录设备
公开(公告)号：EP0265695A2
公开(公告)日：1988-05-04
申请号：EP87114288.1
申请日：1987-09-30
申请人： SONY CORPORATION
发明人： Lagadec, Roger
IPC分类号： G11B7/09
CPC分类号： G11B7/24085 , C22B11/08 , G11B7/09 , G11B7/24 , G11B27/19 , G11B27/3036
摘要： In this invention, in a recording apparatus for forming a track of a disk-shape recording medium (41) capable of optical information reproduction, the recording apparatus comprises a deflection device (61) for deviating a recording beam from a light source in a radius direction of said disk-shape recording medium; and a deflection-control signal generating device (62-78). The deflection control signal is developed from the superimposition of a first signal having a predetermined frequency and a second signal having a lower frequency than said predetermined frequency. The superimposition of the second signal can be done while retaining the predetermined frequency.
摘要翻译：在本发明中，在用于形成能够光学信息再现的盘形记录介质（41）轨道的记录装置中，记录装置包括偏转装置（61），该偏转装置用于使记录光束从光源偏转半径所述盘形记录介质的方向; 和偏转控制信号发生装置（62-78）。偏转控制信号由具有预定频率的第一信号和具有比所述预定频率低的频率的第二信号的叠加而形成。第二信号的叠加可以在保持预定频率的同时完成。

58. 发明公开

EP0255188A2 Method of recording, reproducing and erasing information on an optical disk 失效
标题翻译：一种用于记录，再生和擦除的光盘上的信息的方法。
公开(公告)号：EP0255188A2
公开(公告)日：1988-02-03
申请号：EP87201777.7
申请日：1983-08-22
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Nagashima, Michiyoshi , Satoh, Isao
IPC分类号： G11B7/007 , G11B7/00
CPC分类号： G11B7/24 , G11B7/0055 , G11B7/00557 , G11B7/09 , G11B7/0901 , G11B7/14 , G11B7/24076
摘要： The method employs an optical disk having V-shaped grooves formed by respective slant faces. First and second laser beams are focused, by an objective lens, into respective spots (1, 2) on the respective adjoining slant faces (C, D) of a groove for recording and reproducing information. A third laser beam is focused, by the same lens into at least one spot (3) on the bottom of the V-shaped groove for concurrently erasing information on the adjoining slant faces (C, D). The disk comprises recording material for enabling recording by heating and fast cooling and erasing by heating and slow cooling.
摘要翻译：该方法采用在光盘具有由respectivement倾斜面所形成的V形槽。第一和第二激光束被聚焦，通过在物镜中，成respectivement斑点（1，2）上邻接的respectivement倾斜面（C，D）的凹槽的用于记录和再现信息。第三激光束聚焦，通过相同的透镜到至少一个光点（3）上的V形槽的底部，用于兼擦除在相邻的倾斜面的信息（C，D）。所述盘包括记录材料通过加热和快速冷却使记录和通过加热和缓慢冷却擦除。

59. 发明公开

EP0216495A3 Error signal detecting device 有权
标题翻译：错误信号检测装置
公开(公告)号：EP0216495A3
公开(公告)日：1987-12-23
申请号：EP86306371
申请日：1986-08-18
申请人： CANON KABUSHIKI KAISHA
发明人： Aoi, Shigeru
IPC分类号： G11B07/09 , G01B11/02
CPC分类号： G11B7/09 , G11B7/0941 , G11B11/10576
摘要： An error signal detecting device is composed of means for irradiating an object with a concentrated light beam, a photosensor (41 having a photoreceptor face divided into plural portions (5a, 5b) and adapted to receive the light reflected or transmitted by the object, a device (8-17) for respectively dividing a first output and a second output ob. tained respectively from the first and second portions of the photoreceptor face of the photosensor, a first comparator (18-21) for respectively comparing the outputs divided from the first output with the second output, a second comparator (27-30) for respectively comparing the outputs divided from the second output with the first output, and a device (26, 35, 36) for deriving a positional error signal indicating the positional error of the light beam spot with respect to the surface of the object, at least in one of the direction of optical axis and a direction perpendicular to the optical axis.

60. 发明授权

EP0075676B1 Optical track position detecting apparatus and optical disc apparatus using the same 失效
标题翻译：光学位置检测装置和光盘装置
公开(公告)号：EP0075676B1
公开(公告)日：1987-11-04
申请号：EP82106785.7
申请日：1982-07-27
申请人： Hitachi, Ltd.
发明人： Nakamura, Shigeru , Tsunoda, Yoshito , Shigematsu, Kazuo , Kaku, Toshimitsu , Maeda, Takeshi , Kato, Tsuyoshi
IPC分类号： G11B7/08
CPC分类号： G11B7/0901 , G11B7/09 , G11B7/0953 , G11B7/12 , G11B7/13

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