Disc reproduction device
    2.
    发明授权
    Disc reproduction device 失效
    碟片再现装置

    公开(公告)号:US07376054B2

    公开(公告)日:2008-05-20

    申请号:US10523519

    申请日:2003-07-25

    申请人: Takako Araki

    发明人: Takako Araki

    IPC分类号: G11B7/00

    摘要: The present invention provides a disk playback device comprising a control circuit 7 for determining an optimum value of offset for a focus error signal based on amplitude values of a tracking error signal or an RF signal fed from an optical head 5, and making an offset adjustment with reference to the optimum value. The control circuit 7, in signal reproduction, approximates the relationship between offset values and the amplitude values to a quadratic curve with reference to three different offset values and three amplitudes at the respective offset values, repeats a calculation of an optimum offset value corresponding to the peak of the quadratic curve, and sets the three different first to third offset values respectively at an optimum value obtained in a previous optimum offset value calculation processing, and second and third offset values set in the previous optimum offset value calculation processing.

    摘要翻译: 本发明提供了一种光盘播放装置,包括:控制电路7,用于基于从光头5馈送的跟踪误差信号或RF信号的幅值确定聚焦误差信号的偏移的最佳值;以及进行偏移调整 参考最佳值。 信号再现中的控制电路7参照三个不同的偏移值和各个偏移值的三个幅度将偏移值和振幅值之间的关系近似为二次曲线,重复对应于相应偏移值的最佳偏移值的计算 并且将三个不同的第一至第三偏移值分别设定为在先前的最佳偏移值计算处理中获得的最佳值,以及在先前的最佳偏移值计算处理中设置的第二和第三偏移值。

    Apparatus and method for storing ROM and RAM data into magneto-optical recording medium
    3.
    发明授权
    Apparatus and method for storing ROM and RAM data into magneto-optical recording medium 失效
    将ROM和RAM数据存储到磁光记录介质中的装置和方法

    公开(公告)号:US07301855B2

    公开(公告)日:2007-11-27

    申请号:US10959715

    申请日:2004-10-06

    IPC分类号: G11B11/00

    摘要: An optical disk apparatus records new information related to the ROM information into RAM at a position linked with the ROM information of an optical information storage medium while continuously regenerating the ROM information of the optical information storage medium. At least the ROM signals are read at n (n>2) times of the information regeneration velocity V, which is a reference, and stored in a buffer memory for reading, then the stored information is output at a velocity of the information regeneration velocity V. And while the stored information is being output from the buffer memory for reading, the input information is stored in the buffer memory for writing, then the optical head is accessed an address position that is managed so that the time relationship of the output information and the input information link for recording.

    摘要翻译: 光盘装置在与光信息存储介质的ROM信息相关联的位置将与ROM信息有关的新信息记录在RAM中,同时连续重新生成光信息存储介质的ROM信息。 在作为参考的信息再现速度V的n(n> 2)倍处读取至少ROM信号,并存储在用于读取的缓冲存储器中,然后以信息再生速度的速度输出存储的信息 当所存储的信息从缓冲存储器输出用于读取时,输入信息被存储在用于写入的缓冲存储器中,然后光头被访问一个被管理的地址位置,使得输出信息的时间关系 和用于记录的输入信息链接。

    Disc detection device and associated method
    5.
    发明授权
    Disc detection device and associated method 失效
    光盘检测装置及相关方法

    公开(公告)号:US07224656B2

    公开(公告)日:2007-05-29

    申请号:US11246363

    申请日:2005-10-11

    IPC分类号: G11B7/00

    摘要: A disc drive apparatus is provided which determines a recording medium enabling type and recordability for various types of discs. The discs are housed in a cartridge and each cartridge has at least a first and second detection hole formed therein. The second detection hole (H1) is variably opened and closed by an opening/closing device, and the first detection hole (H0) is in an open state at all times. The disc drive apparatus determines the disc type using a light signal reflected from the loaded recording medium. The disc drive apparatus also determines disc determining parameters (for example, recordability of a disc) based on information received about the disc type and the open/closed state of one or more detection holes formed in the cartridge.

    摘要翻译: 提供一种盘驱动装置,其确定能够对各种类型的盘进行类型和记录的记录介质。 盘被容纳在盒中,并且每个盒具有至少形成在其中的第一和第二检测孔。 第二检测孔(H 1)由打开/关闭装置可变地打开和关闭,并且第一检测孔(H 0)始终处于打开状态。 盘驱动装置使用从加载的记录介质反射的光信号来确定光盘类型。 盘驱动装置还基于接收到的关于盘类型的信息和形成在盒中的一个或多个检测孔的打开/关闭状态来确定盘确定参数(例如,盘的可记录性)。

    Optical recording and reproducing method and optical recording medium
    6.
    发明申请
    Optical recording and reproducing method and optical recording medium 失效
    光学记录和再现方法和光学记录介质

    公开(公告)号:US20070019527A1

    公开(公告)日:2007-01-25

    申请号:US11526392

    申请日:2006-09-25

    IPC分类号: G11B7/135

    摘要: An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

    摘要翻译: 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息,并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1 1&lt; 1&gt; 1的槽深度d 1 选择在70nm至90nm的范围内,并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样,光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

    Optical recording and reproducing method and optical recording medium
    7.
    发明授权
    Optical recording and reproducing method and optical recording medium 失效
    光学记录和再现方法和光学记录介质

    公开(公告)号:US07113470B2

    公开(公告)日:2006-09-26

    申请号:US10503265

    申请日:2003-02-06

    IPC分类号: G11B7/00

    摘要: An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

    摘要翻译: 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息,并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1 1&lt; 1&gt; 1的槽深度d 1 选择在70nm至90nm的范围内,并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样,光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

    Optical disc recording and/or reproducing apparatus and aberration adjustment method

    公开(公告)号:US07068576B2

    公开(公告)日:2006-06-27

    申请号:US10026740

    申请日:2001-12-27

    申请人: Yuhei Kobayashi

    发明人: Yuhei Kobayashi

    IPC分类号: G11B7/00

    摘要: The astigmatic aberration in an optical system is to be adjusted. Specifically, in an optical disc device on which can be selectively loaded a first optical disc having a first index of double refraction or a second optical disc having a second index of double refraction larger than said first index of double refraction, and which includes a liquid crystal device 31 between a light source 11 and an objective lens 15 converging a light beam radiated from said light source on the optical disc 2 loaded on the optical disc device, the voltage applied to the liquid crystal device 31 is adjusted to correct the coma aberration or the astigmatic aberration for the first disc or the second disc, respectively.

    Optical disc and recording/reproduction device
    9.
    发明申请
    Optical disc and recording/reproduction device 审中-公开
    光盘和记录/再现设备

    公开(公告)号:US20060114809A1

    公开(公告)日:2006-06-01

    申请号:US11335102

    申请日:2006-01-19

    申请人: Tetsuo Hosokawa

    发明人: Tetsuo Hosokawa

    IPC分类号: G11B7/24

    摘要: An optical disc has a recording structure consisting of an ROM section and an RAM section which are preferable for multiplexing recording/reproduction of music information and the like On the optical disc, the ROM section where information has been recorded by a phase pit using the light reflectance and the RAM section on/from which recording and reproduction can be preformed are arranged in layers and information recorded in the ROM section and the information recorded in the RAM section are synchronously reproduced. The RAM section is divided into a plurality of information recording areas from which information can be reproduced synchronously with the ROM section. While reproducing music information from the ROM section, music information such as music by separate musical instruments is multiplexedly recorded on the RAM section and multiplexedly reproduced when necessary.

    摘要翻译: 光盘具有由ROM部分和RAM部分组成的记录结构,其优选用于多路复用音乐信息的记录/再现等。在光盘上,通过使用光的相位凹坑记录了信息的ROM部分 可以进行记录和再现的RAM部分,并且记录在ROM部分中的信息和记录在RAM部分中的信息被同步地再现。 RAM部分被分成多个信息记录区域,可从该信息记录区域与ROM部分同步地再现信息。 当从ROM部分再现音乐信息时,诸如音乐的音乐信息被单独的乐器多路复用地记录在RAM部分上,并且在必要时进行多路复用。

    Tilt adjusting method for guide shafts in a recording medium driving apparatus
    10.
    发明授权
    Tilt adjusting method for guide shafts in a recording medium driving apparatus 失效
    用于记录介质驱动装置中的导向轴的倾斜调节方法

    公开(公告)号:US06993825B2

    公开(公告)日:2006-02-07

    申请号:US10362211

    申请日:2002-08-29

    IPC分类号: G11B5/127 H04R31/00

    摘要: A tilt adjusting method for a recording medium driving apparatus including a linear driving device including first and second parallel guide shafts. The method provides a flat mirror on a turntable, an auto-collimator, and a skew angle adjusting jig including an optically flat surface. In a first state of the jig, a height of the second end of the first shaft is adjusted so that a tilt of the first shaft in a radial direction matches a tilt of the mirror, and a height of the first end of the second shaft is adjusted so that a tilt of the first shaft in a tangential direction matches the tilt of the mirror. And, in a second state of the jig, a height of the second end of the second shaft is adjusted so that a tilt of the second shaft in a radial direction matches the tilt of the mirror.

    摘要翻译: 一种用于记录介质驱动装置的倾斜调节方法,包括具有第一和第二平行导向轴的线性驱动装置。 该方法在转台上提供平面镜,自动准直仪和包括光学平面的倾斜角调节夹具。 在夹具的第一状态下,调节第一轴的第二端的高度,使得第一轴在径向上的倾斜与反射镜的倾斜度匹配,并且第二轴的第一端的高度 被调整为使得第一轴在切向方向上的倾斜与反射镜的倾斜度一致。 并且,在夹具的第二状态下,调节第二轴的第二端的高度,使得第二轴在径向上的倾斜与反射镜的倾斜度一致。