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1146 条记录 (耗时 0.022 秒)

    Defect detection apparatus for detecting defects on a recording medium and reading apparatus incorporating the defect detection system
    62.
    发明授权
    Defect detection apparatus for detecting defects on a recording medium and reading apparatus incorporating the defect detection system 失效
    用于检测记录介质上的缺陷的缺陷检测装置和结合有缺陷检测系统的读取装置

    公开(公告)号：US6084836A

    公开(公告)日：2000-07-04

    申请号：US95421

    申请日：1998-06-11

    申请人： Hideyo Kamiyama

    发明人： Hideyo Kamiyama

    IPC分类号： G11B7/004 ,  G11B7/0037 ,  G11B7/09 ,  G11B7/00

    CPC分类号： G11B7/00375

    摘要： A defect detection apparatus has a simple constitution and performs accurate defect detection while clearly differentiating between defect detection and tracking error detection. The defect detection apparatus includes a photodetector having a light-receiving area for receiving a return light beam from a recording medium irradiated with a light beam. A defect on the recording medium is detected based on an output from the photodetector. The defect detection apparatus according to the present invention comprises signal generation means for generating on the basis of an output from the photodetector at least two phase detection signals having phases which vary in a manner complementary to each other according to a deviation of the light beam from a track of the recording medium, adding means for adding up absolute value of the phase detection signal to generate a sum total signal having a value corresponding to a result of the addition, and discrimination means for comparing the value of the sum total signal with a predetermined reference value so as to generate a defect detection signal based on a result of the comparison.

    摘要翻译： 缺陷检测装置具有简单的结构，并且在清楚地区分缺陷检测和跟踪误差检测之间执行精确的缺陷检测。 缺陷检测装置包括具有用于接收来自照射光束的记录介质的返回光束的光接收区域的光电检测器。 基于光电检测器的输出检测记录介质上的缺陷。 根据本发明的缺陷检测装置包括信号产生装置，用于根据来自光电检测器的输出产生至少两个相位检测信号，所述至少两个相位检测信号具有相互互补的相位， 记录介质的轨道，加法装置，用于将相位检测信号的绝对值相加以产生具有与加法结果相对应的值的总和信号;以及鉴别装置，用于将总和信号的总和与 预定的参考值，以便根据比较结果产生缺陷检测信号。

    Apparatus for skipping and/or playing tracks on a cd or a dvd
    64.
    发明授权
    Apparatus for skipping and/or playing tracks on a cd or a dvd 失效
    用于在CD或DVD上跳过和/或播放曲目的装置

    公开(公告)号：US06067279A

    公开(公告)日：2000-05-23

    申请号：US989756

    申请日：1997-12-12

    申请人： Hoyt A. Fleming, III

    发明人： Hoyt A. Fleming, III

    IPC分类号： G11B7/0037 ,  G11B17/22 ,  G11B23/36 ,  G11B23/40 ,  G11B27/00 ,  G11B27/10 ,  G11B27/11 ,  G11B27/36

    CPC分类号： G11B17/228 ,  G11B17/22 ,  G11B23/36 ,  G11B23/40 ,  G11B27/002 ,  G11B27/105 ,  G11B27/11 ,  G11B27/36 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/65 ,  G11B2220/90 ,  G11B7/0037

    摘要： One embodiment of the present invention provides a system for skipping a track on a disc in a disc player. Unlike current systems, this system does not rely on identifying tracks to be skipped based upon which slot a disc is located in. Instead, one embodiment of the present invention identifies discs based upon identification data read from discs in the disc player. Thus, one embodiment of the present invention provides an apparatus for playing discs that skips a track on a disc. The apparatus includes a disc player including a sequencing mechanism that generates a sequence of tracks from discs in the disc player. The disc player also includes an identification mechanism within the disc player that reads identification information from discs in the disc player and determines from the identification information if a specific disc is in the disc player. The disc player additionally includes a skipping mechanism within the disc player that skips a specific track if the specific track occurs in the sequence of tracks.

    摘要翻译： 本发明的一个实施例提供一种用于在盘播放器中的盘上的轨道跳过的系统。 与当前系统不同，该系统不依赖于基于盘所在的时隙来识别要跳过的轨道。相反，本发明的一个实施例基于从盘播放器中的盘读取的识别数据来识别盘。 因此，本发明的一个实施例提供一种用于播放在盘上跳过轨道的盘的装置。 该装置包括一个光盘播放器，它包括一个排序机构，它从光盘播放器中的光盘产生一串音轨。 光盘播放器还包括在光盘播放器内的识别机构，其从盘播放器中的盘读取识别信息，并根据识别信息确定特定光盘是否在光盘播放器中。 如果特定轨道在轨道序列中发生，则盘播放器还包括在盘播放器内跳过特定轨道的跳过机构。

    Pre-pit detecting apparatus
    66.
    发明授权
    Pre-pit detecting apparatus 失效
    预坑检测装置

    公开(公告)号：US6058093A

    公开(公告)日：2000-05-02

    申请号：US271985

    申请日：1999-03-19

    申请人： Masahiro Kato ,  Eiji Muramatsu

    发明人： Masahiro Kato ,  Eiji Muramatsu

    IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/09 ,  G11B7/13 ,  G11B27/19 ,  G11B27/30 ,  G11B11/03 ,  G11B11/12

    CPC分类号： G11B7/131 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/0037 ,  G11B7/00745

    摘要： A pre-pit detecting apparatus detects a pre-pit with respect to an information record medium having a record track and a guide track which is to guide a light beam onto the record track and on which the pre-pit to record control information is formed in advance. The first pre-pit detecting apparatus is provided with: a light receiving device having four divided light detection areas each for receiving a reflection light of the light beam emitted on the record track. The four divided light detection areas are divided such that the reflection light beam is divided by a first division line which is optically in substantially parallel to the record track and a second division line which is optically in substantially orthogonal to the record track. The light receiving device outputs first to fourth light detection signals corresponding to the first to the fourth division areas respectively. The pre-pit detecting apparatus is also provided with: a first difference signal generation device for generating a first difference signal by subtracting the third light detection signal from the first light detection signal; a second difference signal generation device for generating a second difference signal by subtracting the second light detection signal from the fourth light detection signal; a correction device for delaying the second difference signal by a delay time; and a pre-pit detection signal output device for adding the first difference signal and the delayed second difference signal to output it as a pre-pit detection signal.

    摘要翻译： 预凹坑检测装置相对于具有将光束引导到记录轨道上的记录轨道和导轨的信息记录介质来检测预凹坑，并且在其上形成记录控制信息的预凹坑 提前。 第一预凹坑检测装置设置有：具有四个划分的光检测区域的光接收装置，每个分别用于接收在记录轨道上发射的光束的反射光。 四个划分的光检测区域被分割成使得反射光束被光学地基本上平行于记录轨道的第一分割线和在光学上基本上与记录轨道正交的第二分割线分割。 光接收装置分别输出对应于第一至第四分区的第一至​​第四光检测信号。 预凹坑检测装置还具有：第一差信号生成装置，用于通过从第一光检测信号中减去第三光检测信号来产生第一差信号; 第二差信号生成装置，用于通过从第四光检测信号中减去第二光检测信号来产生第二差信号; 用于将所述第二差分信号延迟延迟时间的校正装置; 以及预凹坑检测信号输出装置，用于将第一差分信号和延迟的第二差分信号相加，以将其输出为预凹坑检测信号。

    Optical disc, formed from joining individual discs and method and apparatus for manufacturing and using such optical disc
    69.
    发明授权
    Optical disc, formed from joining individual discs and method and apparatus for manufacturing and using such optical disc 失效
    由连接各个光盘形成的光盘以及用于制造和使用这种光盘的方法和装置

    公开(公告)号：US6031808A

    公开(公告)日：2000-02-29

    申请号：US968141

    申请日：1997-11-12

    申请人： Ichiro Ueno

    发明人： Ichiro Ueno

    IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/007 ,  G11B7/24 ,  G11B7/26 ,  G11B7/30

    CPC分类号： G11B7/0079 ,  G11B7/24 ,  G11B7/26 ,  G11B7/0037 ,  G11B7/261 ,  G11B7/263

    摘要： A read only memory (ROM) disc 10 has an annular ROM area 12 in an outer area thereof, and a random access memory (RAM) disc 20 has an annular RAM area 22 in an inner area thereof. The ROM disc and the RAM disc are manufactured independently each other under respective preferable conditions. An optical disc 30 is provided by adhering the ROM disc and the RAM disc each other. An optical pickup 32 reproduces the optical disc or records thereon by irradiating a light from one side thereof.

    摘要翻译： 只读存储器（ROM）盘10在其外部区域中具有环形ROM区域12，并且随机存取存储器（RAM）盘20在其内部区域中具有环形RAM区域22。 ROM盘和RAM盘在各自的优选条件下彼此独立地制造。 通过将ROM盘和RAM盘彼此粘合来提供光盘30。 光拾取器32通过从其一侧照射光来再现光盘或其上的记录。

    Optical disk apparatus
    70.
    发明授权
    Optical disk apparatus 失效
    光盘装置

    公开(公告)号：US6026068A

    公开(公告)日：2000-02-15

    申请号：US717256

    申请日：1996-09-20

    申请人： Kiyoshi Obata ,  Shuko Saito ,  Nozomu Okazaki ,  Tetsuya Tsuji

    发明人： Kiyoshi Obata ,  Shuko Saito ,  Nozomu Okazaki ,  Tetsuya Tsuji

    IPC分类号： G11B7/0037 ,  G11B11/105 ,  G11B17/04 ,  G11B17/041 ,  G11B19/02 ,  G11B19/12 ,  G11B19/247 ,  G11B19/26 ,  G11B11/00 ,  G11B7/00

    CPC分类号： G11B17/057 ,  G11B19/02 ,  G11B19/12 ,  G11B19/247 ,  G11B19/26 ,  G11B11/10597 ,  G11B2020/183 ,  G11B7/0037

    摘要： A constant linear velocity control (CLV control) for controlling a spindle motor so as to set a linear velocity in a track circumferential direction to be constant and a constant angular velocity control (CAV control) for controlling the spindle motor so as to set a rotation of a medium to be constant are switched and controlled for a change in position in the radial direction of the medium of a pickup in accordance with a detection result of the medium loaded. In the switching control, selection information of the CLV control and the CAV control is previously registered in accordance with the kind of medium and the CLV control or the CAV control is selected in accordance with the corresponding selection information obtained from the detection result of the medium.

    摘要翻译： 用于控制主轴电动机以将轨道圆周方向上的线速度设定为恒定的恒定线速度控制（CLV控制）和用于控制主轴电机的恒定角速度控制（CAV控制）以设定旋转 根据介质负载的检测结果，切换和控制介质的拾取器的介质的径向位置的变化。 在切换控制中，CLV控制和CAV控制的选择信息根据介质的种类预先登记，并且根据从介质的检测结果获得的相应选择信息来选择CLV控制或CAV控制 。