Recording medium and apparatus and method for manufacturing the same
    81.
    发明授权
    Recording medium and apparatus and method for manufacturing the same 有权
    记录介质及其制造方法

    公开(公告)号:US06679430B2

    公开(公告)日:2004-01-20

    申请号:US09893731

    申请日:2001-06-27

    IPC分类号: G06K1906

    摘要: A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of a curvature smaller than a radius of a curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.

    摘要翻译: 一种记录介质包括一对槽周边并且周期性地弯曲设置的槽轨道和槽脊轨迹,预先形成在槽脊轨道上并携带关于槽轨道的信息的多个焊盘预制坑以及至少形成在槽轨道上的记录层 和陆地轨道。 平坦凹坑预凹坑的曲率半径小于凹槽轨迹的边缘曲率的半径,并且由凹槽轨迹的侧面连续延伸的曲面限定。 凹槽轨道的面对凹坑预凹坑的连续弯曲表面的那些侧面是使凹槽轨道缩窄的曲面。

    Information recording medium, information recording device and method therefor, and computer program product and storage medium therefor
    82.
    发明授权
    Information recording medium, information recording device and method therefor, and computer program product and storage medium therefor 有权
    信息记录介质,信息记录装置及其方法及其计算机程序产品和存储介质

    公开(公告)号:US07301873B2

    公开(公告)日:2007-11-27

    申请号:US10446776

    申请日:2003-05-29

    IPC分类号: G11B7/00

    摘要: On a recording medium, the version information indicating a version of the recording standard to which the information recording medium is adapted is recorded. Moreover, the normal recording condition information for recording information at a normal recording speed and the high speed recording condition information for recording the information at a higher recording speed than the normal recording speed are recorded. The recording condition information includes, for example, information about a write strategy for driving a laser light source. At the time of recording, the information recording device compares the version information on the information recording medium with the version information of the information recording device so as to judge whether or not the information can be recorded. When the judgment is made that the information cannot be recorded based on the version information, further the compatibility version information is compared with the version information of the information recording device so that a judgment is made as to whether or not the information can be recorded. In such a manner, the judgment can be properly made as to whether or not the recording can be executed on the information recording medium.

    摘要翻译: 在记录介质上,记录指示适应信息记录介质的记录标准的版本的版本信息。 此外,记录用于以正常记录速度记录信息的正常记录条件信息和用于以比正常记录速度更高的记录速度记录信息的高速记录条件信息。 记录条件信息例如包括关于用于驱动激光光源的写入策略的信息。 在记录时,信息记录装置将信息记录介质上的版本信息与信息记录装置的版本信息进行比较,以判断是否可以记录信息。 当基于版本信息判断不能记录信息时,将兼容性版本信息与信息记录装置的版本信息进行比较,以便判断信息是否能被记录。 以这种方式,可以适当地进行关于在信息记录介质上执行记录的判断。

    Information recording apparatus, information recording method and information recording program
    84.
    发明申请
    Information recording apparatus, information recording method and information recording program 审中-公开
    信息记录装置,信息记录方法和信息记录程序

    公开(公告)号:US20050111317A1

    公开(公告)日:2005-05-26

    申请号:US10969189

    申请日:2004-10-21

    摘要: An optical disc capable of repeated recording, such as a DVD−RW, is applicable. An information recording and reproducing apparatus starts recording by making a sync pattern of recording data correspond to a recording reference position determined by an LPP formed on the disc at the time of recording new data on the disc. Afterward, the apparatus continues the recording by gradually shifting a position of the sync pattern of the recording data with respect to the recording reference position, and performs the recording with a shift quantity fixed to the predetermined shift quantity when the shift quantity thereof reaches a quantity equal to or larger than a predetermined quantity. Thereby, at a rewriting portion on the optical disc, the shift between recorded data and a recording start position of recording data for rewriting can be small, and establishing synchronization at the time of reproducing or rewriting can be stably performed.

    摘要翻译: 能够重复记录的光盘,例如DVD-RW。 信息记录和再现设备通过使记录数据的同步模式对应于在盘上记录新数据时由形成在盘上的LPP确定的记录参考位置来开始记录。 之后,装置通过逐渐地移动记录数据的同步图形的位置而相对于记录基准位置继续记录,并且当其移动量达到数量时,以固定为预定移位量的移位量进行记录 等于或大于预定量。 因此,在光盘上的重写部分,记录数据与用于重写的记录数据的记录开始位置之间的偏移可以很小,并且可以稳定地执行再现或重写时的建立同步。

    Information recording medium and information recorder
    89.
    发明申请
    Information recording medium and information recorder 失效
    信息记录介质和信息记录仪

    公开(公告)号:US20050254795A1

    公开(公告)日:2005-11-17

    申请号:US10520665

    申请日:2003-05-30

    摘要: An object of the invention is to provide an optical disc in which the influence of recording interference is reduced to make it possible to narrow the interval between adjacent recording tracks and increase the recording density of information. The optical disc comprises a substrate 1 on which the grooves G are formed, a reflecting layer 2 for reflecting an optical beam, a recording layer 3, and a cover layer 5 for protecting the recording layer 3, in which the cover layer 5, the recording layer 3, the reflecting layer 2 and the substrate 1 are disposed in this order from the side where the optical beam is applied, and the thickness of the recording layer 3 formed in an area opposed to the groove G and forming a recording track TR is greater than the thickness of the recording layer 3 formed in an area opposed to an area on the substrate 1 between two adjacent grooves G.

    摘要翻译: 本发明的目的是提供一种光盘,其中减小了记录干扰的影响,使得可以缩小相邻记录轨道之间的间隔并增加信息的记录密度。 光盘包括其上形成有槽G的基板1,用于反射光束的反射层2,记录层3和用于保护记录层3的覆盖层5,其中覆盖层5, 记录层3,反射层2和基板1从施加光束的一侧依次设置,记录层3的厚度形成在与槽G相对的区域中并形成记录轨道TR 大于在与相邻两个沟槽G之间的基板1上的区域相对的区域中形成的记录层3的厚度。

    Information reproducing apparatus for optical disc
    90.
    发明授权
    Information reproducing apparatus for optical disc 失效
    用于光盘的信息再现装置

    公开(公告)号:US5768232A

    公开(公告)日:1998-06-16

    申请号:US868623

    申请日:1997-06-04

    摘要: An information reproducing apparatus for reproducing information recorded on an information track formed on an information record surface of an optical disc, is provided with: a light irradiation device for irradiating the information record surface with a plurality of light beams including a first light beam, to which a coma aberration is not given, and at least one second light beam, to which a predetermined coma aberration for cancelling a coma aberration due to a tilt of the information record surface in a direction perpendicular to the information track is given, such that the first light beam and the second light beam form light spots arranged along the information track; a first photo-detector for detecting a first reflection light from the information record surface and generating a first light detection signal; a second photo-detector for detecting a second reflection light from the information record surface and generating a second light detection signal; a tilt detection device for detecting a tilt of the information record surface and outputting a tilt signal; and a selection device for selecting one of the first and second light detection signals which has a less coma aberration according to the tilt signal. The information is reproduced on the basis of the selected one of the first and second light detection signals.

    摘要翻译: 一种用于再现记录在形成在光盘的信息记录表面上的信息轨迹上的信息的信息再现装置设置有:用于将包括第一光束的多个光束照射到信息记录表面的光照射装置, 并且给出了至少一个第二光束,其中给出了用于消除由于信息记录表面在与信息轨迹垂直的方向上的倾斜引起的彗形像差的预定彗形像差,使得 第一光束和第二光束形成沿着信息轨迹布置的光点; 第一光检测器,用于检测来自信息记录表面的第一反射光并产生第一光检测信号; 第二光检测器,用于检测来自信息记录表面的第二反射光并产生第二光检测信号; 倾斜检测装置,用于检测信息记录表面的倾斜并输出倾斜信号; 以及选择装置,用于根据倾斜信号选择具有较小彗形像差的第一和第二光检测信号之一。 基于所选择的第一和第二光检测信号之一再现信息。