会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 102. 发明授权
    • Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof
    • 从具有沿其轨道形成的识别标记的两种类型的光盘再现信息的设备和方法
    • US06738326B1
    • 2004-05-18
    • US09610364
    • 2000-07-05
    • Hiromichi IshibashiKen'ichi Kasazumi
    • Hiromichi IshibashiKen'ichi Kasazumi
    • G11B7005
    • G11B7/005G11B7/0053G11B2007/0006
    • When information is reproduced in an optical disk of high recording density or of low recording density, a main beam and sub-beams are emitted onto adjacent tracks. The main beam has a shape longer in a direction perpendicular to the tracks. When the optical disk of high recording density is reproduced, cross talk components from adjacent tracks included in signals reproduced from reflection light of the main beam are canceled by using signals reproduced from reflection lights of the sub-beams. When the optical disk of low recording density is reproduced, information is reproduced with a beam. Thus, two types of optical disks can be reproduced with a simple structure in a compatible way. In the cross talk canceling, discrimination marks formed along the tracks at constant distances are reproduced, and a time difference between the main beam and the sub-beams is corrected precisely by using track jump and detection of discrimination marks.
    • 当在高记录密度或低记录密度的光盘中再现信息时,主光束和子光束被发射到相邻的光道上。 主梁具有在与轨道垂直的方向上更长的形状。 当再现高记录密度的光盘时,通过使用从副光束的反射光再现的信号来消除包含在主光束的反射光中再现的信号中的相邻光道的串扰分量。 当再现低记录密度的光盘时,用光束再现信息。 因此,可以以兼容的方式以简单的结构再现两种类型的光盘。 在串扰消除中,再现沿着轨道形成的识别标记,并且通过使用轨迹跳跃和识别标记的检测来精确地校正主光束和子光束之间的时间差。
    • 106. 发明授权
    • Optical disk drive apparatus
    • 光盘驱动装置
    • US4669073A
    • 1987-05-26
    • US696243
    • 1985-01-29
    • Noriaki WakabayashiHiromichi Ishibashi
    • Noriaki WakabayashiHiromichi Ishibashi
    • G11B7/08G11B7/085G11B7/135G11B7/09
    • G11B7/08G11B7/08576G11B7/135
    • An optical disk drive apparatus, for data or information disks of which the data or information are able to record or playback on each of the recording tracks, comprises an optical rotary pick-up head actuator for both seeking and following to the recording track to read or write data signals by a light beam. The light beam is injected along the axis of rotation of the optical rotary pick-up head actuator; guided through a stick-shaped prism in cantilever form which is fixed by one side on the optical rotary pick-up head actuator and is unsuspended by the other side; and focused upon the recording surface of the disk through an objective lens which can be rotatively moved and controlled with the optical rotary pick-up head actuator in the direction to seeking the tracks. An reflective light beam from the recording surface of the disk is guided in the reverse order and is taken out from the center axis of rotation.
    • 用于数据或信息能够在每个记录磁道上记录或回放的数据或信息盘的光盘驱动装置包括光学旋转拾取头致动器,用于寻找和跟随记录轨道读取 或通过光束写入数据信号。 沿着光学旋转拾取头致动器的旋转轴线注入光束; 引导通过悬臂形式的棒状棱镜,其以一侧固定在光学旋转拾取头致动器上并被另一侧悬挂; 并且通过物镜聚焦在盘的记录表面上,该物镜可以通过光学旋转拾取头致动器沿寻找轨道的方向旋转移动和控制。 来自盘的记录表面的反射光束以相反的顺序被引导,并从中心旋转轴线中取出。