Detecting apparatus for detecting statuses of optical disc and method thereof
    41.
    发明授权
    Detecting apparatus for detecting statuses of optical disc and method thereof 失效
    用于检测光盘状态的检测装置及其方法

    公开(公告)号:US07680005B2

    公开(公告)日:2010-03-16

    申请号:US11736559

    申请日:2007-04-17

    CPC classification number: G11B19/04 G11B7/00375 G11B7/08505 G11B19/12

    Abstract: Disclosed are detecting apparatus for detecting statuses of an optical disc and methods thereof, which can avoid or reduce erroneous status decisions at the edge of a blank region. The detecting apparatus includes a blank detector, for detecting a blank region of the optical disc to generate a blank detection signal; an edge detector, for detecting a transition of the blank detection signal to generate an edge detection signal; a control circuit, in response to the edge detection signal for outputting control signals; and a defect detector in response to the control signals for detecting defect region of the optical disc to generate a defect decision signal.

    Abstract translation: 公开了用于检测光盘的状态的检测装置及其方法,其可以避免或减少在空白区域的边缘处的错误状态判定。 检测装置包括用于检测光盘的空白区域以产生空白检测信号的空白检测器; 边缘检测器,用于检测空白检测信号的转变以产生边缘检测信号; 控制电路,响应于用于输出控制信号的边缘检测信号; 以及响应于用于检测光盘的缺陷区域的控制信号产生缺陷判定信号的缺陷检测器。

    AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF
    42.
    发明申请
    AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF 有权
    光盘驱动自动功率控制系统及其方法

    公开(公告)号:US20100039908A1

    公开(公告)日:2010-02-18

    申请号:US12603762

    申请日:2009-10-22

    Abstract: A method for calibrating an initial driving signal for driving an optical pick-up head of an optical disk drive is provided. On one embodiment, said optical disk drive is utilized for reading or writing data on an optical disk, the optical disk comprises a plurality of auto power control areas (APC areas) and a plurality of data areas, and the APC areas and the data areas are interleaved in between. First, in the APC areas, an initial driving signal is used to drive the optical pick-up head to emit laserbeam. A detected level of the laserbeam is then obtained. An update initial driving signal is then calibrated according to the detected level and a target level.

    Abstract translation: 提供了用于校准用于驱动光盘驱动器的光学拾取头的初始驱动信号的方法。 在一个实施例中,所述光盘驱动器用于在光盘上读取或写入数据,该光盘包括多个自动功率控制区域(APC区域)和多个数据区域,以及APC区域和数据区域 在它们之间交错。 首先,在APC区域中,使用初始驱动信号来驱动光学拾取头发射激光束。 然后获得激光束的检测水平。 然后根据检测到的电平和目标电平校准更新初始驱动信号。

    METHOD AND APPARATUS FOR BLANK DETECTION OF AN OPTICAL DISC
    43.
    发明申请
    METHOD AND APPARATUS FOR BLANK DETECTION OF AN OPTICAL DISC 失效
    用于光盘检测的光学方法和装置

    公开(公告)号:US20070280088A1

    公开(公告)日:2007-12-06

    申请号:US11559416

    申请日:2006-11-14

    Abstract: An optical storage device and a blank detection method thereof are disclosed. An RF signal is obtained from an optical disc. A various gain amplifier amplifies the RF signal based on a control signal. An analog to digital converter samples the amplified RF signal to obtain a data signal. An auto gain controller updates the control signal based on amplitude of the data signal. A blank detector detects blankness of the data signal based on a threshold. The threshold is provided by a threshold generator based on the control signal. If the amplitude of the data signal does not exceed the threshold, the blank detector sends a hold signal to suspend update of the control signal.

    Abstract translation: 公开了一种光存储装置及其空白检测方法。 从光盘获得RF信号。 各种增益放大器基于控制信号来放大RF信号。 模数转换器对放大的RF信号进行采样以获得数据信号。 自动增益控制器根据数据信号的幅度更新控制信号。 空白检测器基于阈值检测数据信号的空白。 阈值由基于控制信号的阈值发生器提供。 如果数据信号的幅度不超过阈值,则空白检测器发送保持信号以暂停更新控制信号。

    Rewritable optical recording medium with ZnO near-field optical interaction layer
    44.
    发明授权
    Rewritable optical recording medium with ZnO near-field optical interaction layer 失效
    具有ZnO近场光学相互作用层的可重写光记录介质

    公开(公告)号:US06983476B2

    公开(公告)日:2006-01-03

    申请号:US10337775

    申请日:2003-01-08

    Abstract: This invention is a rewritable near-field optical medium using a zinc oxide nano-structured thin film as the localized near-field interaction layer. This rewritable near-field optical medium is a multilayered body at least comprising: (a) a substrate of transparent material; (b) a first protective and spacer layer formed on one surface of the substrate, which is made of transparent dielectric material; (c) a zinc oxide nano-structured thin film which is capable of causing localized near-field optical interactions; (d) a second protective and spacer layer formed on the localized near-field optical interaction layer, which is also made of transparent dielectric material; (e) a rewritable recording layer; (f) a third protective and spacer layer formed on the rewritable recording layer, which is also made of transparent dielectric material. Ultrahigh density near-field optical recording can be achieved by the localized near-field optical interactions of the zinc oxide nanostructured thin film that is in the near-field region of the rewritable recording layer.

    Abstract translation: 本发明是使用氧化锌纳米结构薄膜作为局部近场相互作用层的可重写近场光学介质。 这种可重写的近场光学介质是多层体,至少包括:(a)透明材料的基底; (b)形成在由透明电介质材料制成的衬底的一个表面上的第一保护和隔离层; (c)能够引起局部近场光学相互作用的氧化锌纳米结构薄膜; (d)形成在局部近场光学相互作用层上的第二保护和间隔层,其也由透明电介质材料制成; (e)可重写记录层; (f)形成在可重写记录层上的第三保护层和间隔层,其也由透明介电材料制成。 可以通过在可重写记录层的近场区域中的氧化锌纳米结构薄膜的局部近场光学相互作用来实现超高密度近场光学记录。

    Methods and devices for controlling access to an optical disc
    46.
    发明授权
    Methods and devices for controlling access to an optical disc 有权
    用于控制对光盘的访问的方法和装置

    公开(公告)号:US08077569B2

    公开(公告)日:2011-12-13

    申请号:US12364496

    申请日:2009-02-02

    CPC classification number: G11B7/08505

    Abstract: A device for controlling access to an optical disc includes a control word calculator and a numerically controlled oscillator (NCO). The control word calculator is arranged to calculate a control word corresponding to a radius where the optical disc is accessed. In addition, the NCO is arranged to generate an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc. An associated method for controlling access to an optical disc includes: calculating a control word corresponding to a radius where the optical disc is accessed; and generating an output frequency according to the control word, wherein the output frequency is utilized for accessing the optical disc.

    Abstract translation: 用于控制对光盘的访问的装置包括控制字计算器和数控振荡器(NCO)。 控制字计算器被配置为计算对应于光盘被访问的半径的控制字。 此外,NCO被配置为根据控制字产生输出频率,其中输出频率用于访问光盘。 用于控制对光盘的访问的相关方法包括:计算对应于访问光盘的半径的控制字; 以及根据所述控制字产生输出频率,其中所述输出频率用于访问所述光盘。

    Error-Correcting Apparatus and Method Thereof
    47.
    发明申请
    Error-Correcting Apparatus and Method Thereof 审中-公开
    误差校正装置及其方法

    公开(公告)号:US20110167323A1

    公开(公告)日:2011-07-07

    申请号:US12683915

    申请日:2010-01-07

    CPC classification number: H03M13/4138 H03M13/3707 H03M13/373 H03M13/3746

    Abstract: The invention discloses an error-correcting apparatus for decoding an input signal by using a Viterbi algorithm to generate a Viterbi-decoded signal, including an erasure unit and a decoder. The erasure unit is configured to generate at least one logic signal according to at least one path metric difference of path metrics in the Viterbi algorithm, and generate erasure information, wherein the erasure information indicates data reliability of at least one location of the Viterbi-decoded signal. The decoder is configured to decode the Viterbi-decoded signal according to the erasure information.

    Abstract translation: 本发明公开了一种用于通过使用维特比算法对输入信号进行解码以产生包括擦除单元和解码器的维特比解码信号的纠错装置。 擦除单元被配置为根据维特比算法中的路径度量的至少一个路径度量差产生至少一个逻辑信号,并且生成擦除信息,其中擦除信息指示维特比解码器的至少一个位置的数据可靠性 信号。 解码器被配置为根据擦除信息对维特比解码信号进行解码。

    Apparatus and methods for light spot servo signal detection
    49.
    发明授权
    Apparatus and methods for light spot servo signal detection 有权
    光点伺服信号检测装置及方法

    公开(公告)号:US07796480B2

    公开(公告)日:2010-09-14

    申请号:US11757426

    申请日:2007-06-04

    Abstract: An apparatus for light spot servo signal detection for reading an optical recording medium having a plurality of non-writable areas between writable data areas containing address information. An optical pickup provides a light spot to the non-writable areas of the optical recording medium with a predetermined state according to a control signal, and detects optical reflecting signals from the optical recording medium to generate a detection signal. A signal adjusting module offsets signal levels of the detection signal to an operating range to generate an offset shifted detection signal. An analog to digital converter digitizes the offset shifted detection signal to generate a digital signal. A detection circuit detects the servo detection signal according to the digital signal.

    Abstract translation: 一种光点伺服信号检测装置,用于读取在包含地址信息的可写数据区之间具有多个不可写区域的光记录介质。 光拾取器根据控制信号以预定状态向光记录介质的不可写区域提供光点,并且检测来自光记录介质的光反射信号以产生检测信号。 信号调整模块将检测信号的信号电平偏移到工作范围以产生偏移移位的检测信号。 模数转换器对偏移检测信号进行数字化以产生数字信号。 检测电路根据数字信号检测伺服检测信号。

    POSITIONING METHOD AND POSITIONING SYSTEM BASED ON LIGHT INTENSITY
    50.
    发明申请
    POSITIONING METHOD AND POSITIONING SYSTEM BASED ON LIGHT INTENSITY 审中-公开
    基于光强度的定位方法和定位系统

    公开(公告)号:US20100225929A1

    公开(公告)日:2010-09-09

    申请号:US12469677

    申请日:2009-05-20

    CPC classification number: G01S5/16

    Abstract: A positioning method and a positioning system based on light intensity are provided. The positioning system comprises a lighting system, a sense feedback device and a positioning module. The lighting system comprises at least three point light sources and sequentially adjusts luminance of these point light sources to light up a target. The sense feedback device is disposed on the target and used to collect light intensity information of the light projected on the target by the lighting system. The positioning module calculates a distance between the target and each of the point light sources based on the light intensity information and calculates a positioning location of the target based on the locations of the point light sources and the distances between the target and the point light sources.

    Abstract translation: 提供了一种基于光强度的定位方法和定位系统。 定位系统包括照明系统,感测反馈装置和定位模块。 照明系统包括至少三点光源并且顺序地调节这些点光源的亮度以点亮目标。 感测反馈装置设置在目标上并且用于收集由照明系统投射在目标上的光的光强度信息。 定位模块基于光强度信息计算目标和每个点光源之间的距离,并且基于点光源的位置和目标点与点光源之间的距离来计算目标的定位位置 。

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