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    Focus servo controlling apparatus, information reproducing apparatus and information recording apparatus
    8.
    发明授权
    Focus servo controlling apparatus, information reproducing apparatus and information recording apparatus 失效
    聚焦伺服控制装置，信息再现装置和信息记录装置

    公开(公告)号：US06731574B1

    公开(公告)日：2004-05-04

    申请号：US09684798

    申请日：2000-10-10

    申请人： Shinichiro Abe ,  Takayuki Iijima

    发明人： Shinichiro Abe ,  Takayuki Iijima

    IPC分类号： G11B700

    CPC分类号： G11B7/0945 ,  G11B7/0946 ,  G11B11/10576 ,  G11B11/10597

    摘要： A focus servo control is performed by changing a condition of a focus servo loop from an open condition to a close condition in correspondence with a level of a reflection light signal, which is obtained as a reflection light of a light beam reflected from an information record medium is detected by a light receiving element such as an optical pickup. A focus servo controlling apparatus is provided with a disturbance level detecting device such as a servo control circuit for detecting a level of a disturbance light signal, which is obtained as a disturbance light other than the reflection light is received by the light receiving element; and a controlling device such as a system controller for setting a level, which is larger than the level of the disturbance light signal detected by the disturbance level detecting device, as a threshold level and for changing the condition of the focus servo loop from the open condition to the close condition on the basis of a timing when the level of the reflection light signal becomes equal to or larger than the set threshold level.

    摘要翻译： 通过将聚焦伺服环路的条件从打开状态改变为接近状态，与反射光信号的电平相对应地进行聚焦伺服控制，反射光信号的电平作为从信息记录反射的光束的反射光获得 介质由诸如光学拾取器的光接收元件检测。 聚焦伺服控制装置设置有干扰电平检测装置，例如用于检测干扰光信号的电平的伺服控制电路，该干扰光信号的电平是由光接收元件接收的除了反射光之外的干扰光获得的; 以及诸如系统控制器的控制装置，用于将大于由干扰电平检测装置检测的干扰光信号的电平的电平设置为阈值电平，并且用于将聚焦伺服环路的状态从开路 基于反射光信号的电平变得等于或大于设定的阈值电平的定时，使其处于关闭状态。

    Information recording apparatus including information attaching and generating device which generates group control information
    9.
    发明授权
    Information recording apparatus including information attaching and generating device which generates group control information 失效
    信息记录装置，包括生成组控制信息的信息附加生成装置

    公开(公告)号：US07200090B2

    公开(公告)日：2007-04-03

    申请号：US09990372

    申请日：2001-11-23

    申请人： Katsuaki Yamanoi ,  Tomoyasu Yamada ,  Takayuki Iijima ,  Shinichiro Abe ,  Yoji Shumura ,  Tomoko Miyagawa ,  Junichi Fukamachi

    发明人： Katsuaki Yamanoi ,  Tomoyasu Yamada ,  Takayuki Iijima ,  Shinichiro Abe ,  Yoji Shumura ,  Tomoko Miyagawa ,  Junichi Fukamachi

    IPC分类号： G11B21/08 ,  G06F12/00

    CPC分类号： G11B27/105 ,  G11B27/329 ,  G11B27/36

    摘要： When a detection device detects any kind of change regarding track recording after the start of the track recording, a grouping instruction is given to information attaching and generating device. Then, the information attaching and generating device attaches the same group name information to a group, in which a track where the recording has been started in an information recording medium to a track recorded at the point when the grouping instruction has been received are made to be the same group, and group control information is generated. Therefore, since the grouping is automatically performed by any kind of change regarding the track recording, a user can omit the operation that he/she performs the grouping by himself/herself, and thus the operation load of the user can be reduced.

    摘要翻译： 当检测装置在轨道记录开始之后检测到关于轨道记录的任何种类的改变时，给信息附加和产生装置给出分组指令。 然后，信息附加和生成装置将相同的组名称信息附加到其中在信息记录介质中已经开始记录的轨道到已经接收到分组指令时记录的轨道的组 成为同一个组，并生成组控制信息。 因此，由于通过关于轨道记录的任何种类的改变来自动执行分组，所以用户可以自己省略他/她执行分组的操作，从而可以减少用户的操作负担。

    Apparatus for reproducing information based on the type of compression method used in compressing the information
    10.
    发明授权
    Apparatus for reproducing information based on the type of compression method used in compressing the information 失效
    用于根据在压缩信息中使用的压缩方法的类型再现信息的装置

    公开(公告)号：US06958959B2

    公开(公告)日：2005-10-25

    申请号：US09815338

    申请日：2001-03-23

    申请人： Shinichiro Abe ,  Takayuki Iijima

    发明人： Shinichiro Abe ,  Takayuki Iijima

    IPC分类号： G11B7/005 ,  G11B11/105 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B7/00

    CPC分类号： G11B20/00007 ,  G11B7/005 ,  G11B11/10515 ,  G11B19/125 ,  G11B20/10527 ,  G11B2020/00043

    摘要： An information reproducing apparatus which reads compressed information recorded on a recording medium by one of a plurality of different compression methods, writes the compressed information read into a memory, supplies the compressed information in the memory, to an expander in the order of writing and outputs reproduced information. The type of compression method used in compressing the information read from the recording medium is determined and the timing of starting to read the compressed information from the memory is controlled in accordance with a determination.

    摘要翻译： 一种信息再现装置，其通过多种不同压缩方法中的一种读取记录在记录介质上的压缩信息，将读取的压缩信息写入存储器，将压缩信息以存储器的形式按写入和输出顺序提供给扩展器 再现信息。 确定用于压缩从记录介质读取的信息的压缩方法的类型，并且根据确定来控制开始从存储器读取压缩信息的定时。