OPTICAL DISC
    81.
    发明申请
    OPTICAL DISC 审中-公开
    光盘

    公开(公告)号:US20100142361A1

    公开(公告)日:2010-06-10

    申请号:US12532837

    申请日:2007-03-30

    IPC分类号: G11B7/24

    CPC分类号: G11B7/24085 G11B7/14

    摘要: An optical disc (100) from which a plurality of pieces of information recorded along a track (9) by irradiating light that moves above the track relatively are reproduced in parallel. The optical disc has a disc substrate (1), and a recording layer (2) formed thereon. On the recording layer, a track is defined concentrically and two pit rows for carrying the plurality of pieces of information independently from each other are arranged along the track on the opposite sides thereof. At a specific position where the two pit rows are in a predetermined mutual relation and the plurality of pieces of information read out by irradiating light cannot be distinguished, at least one of two pit rows is shifted by a predetermined distance in the radial direction of the disc substrate by having the track as reference. Consequently, recording capacity can be increased relatively easily.

    摘要翻译: 通过并行地再现通过照射在轨道上方的光而沿着轨道(9)记录的多条信息的光盘(100)。 光盘具有盘基片(1)和形成在其上的记录层(2)。 在记录层上,轨道被同心地定义,并且彼此独立地携带多条信息的两个凹坑行沿着其相对侧的轨道排列。 在两个凹坑列处于预定的相互关系的特定位置处,并且不能区分通过照射光读出的多条信息,两个凹坑行中的至少一个在径向方向上偏移预定距离 通过使轨道作为参考来实现。 因此,可以相对容易地增加记录容量。

    INFORMATION RECORDING AND REPRODUCING DEVICE
    82.
    发明申请
    INFORMATION RECORDING AND REPRODUCING DEVICE 审中-公开
    信息记录和复制设备

    公开(公告)号:US20100135140A1

    公开(公告)日:2010-06-03

    申请号:US12593355

    申请日:2008-03-13

    IPC分类号: G11B20/18 G11B7/135

    摘要: An information recording/reproducing device diffracts laser light into main- and sub-beams, irradiates evanescent light in relation to the main beam by an evanescent light generating element to a track where a recording pit provided on a recording surface of a recording medium is formed and evanescent light in relation to the sub-beam to be separated to a track where no recording pit provided on the recording surface of the recording medium is formed. A moving element moves the evanescent light generating element to change a gap with the recording surface. Return light in relation to the sub- and main-beam are received by sub- and main-light receiving elements, respectively. A control element controls the moving element so as to make the gap become a predetermined target value in accordance with a gap error signal containing a signal indicative of an amount of the return light in relation to the received sub-beam.

    摘要翻译: 信息记录/再现装置将激光衍射成主光束和次光束,通过ev逝光产生元件将相对于主光束的ev逝光照射到形成记录介质的记录表面上的记录凹坑的轨道 以及相对于要分离到不形成记录介质的记录表面上的记录凹坑的轨道的相对于子光束的渐逝光。 移动元件移动消逝光产生元件以改变与记录表面的间隙。 相对于副主梁和主梁的返回光分别由副光接收元件和主光接收元件接收。 控制元件控制移动元件,以便根据含有指示与所接收的子光束相关的返回光量的信号的间隙误差信号使间隙变成预定目标值。

    Optical disc discriminating system
    83.
    发明授权
    Optical disc discriminating system 失效
    光盘识别系统

    公开(公告)号:US06603720B1

    公开(公告)日:2003-08-05

    申请号:US09660886

    申请日:2000-09-13

    IPC分类号: G11B700

    摘要: An optical disc discriminating system comprises: a tracking error signal generating means adapted to generate a tracking error signal whose amplitude level varies with a groove depth of information tracks on an optical disc; a tracking servo means for directing a laser beam along an information track on the optical disc in accordance with the tracking error signal; a comparator adapted to compare the amplitude level of the tracking error signal supplied from the tracking error signal generating means with a reference level, with a tracking servo loop of the tracking servo means in an opened condition; a discriminating means adapted to discriminate the first and second groups of optical discs in accordance with a result from the comparator.

    摘要翻译: 一种光盘识别系统,包括:跟踪误差信号发生装置,用于产生跟踪误差信号,该跟踪误差信号的幅度电平随着光盘上信息轨道的凹槽深度而变化; 跟踪伺服装置,用于根据跟踪误差信号沿着光盘上的信息轨道引导激光束; 比较器,用于将从跟踪误差信号发生装置提供的跟踪误差信号的幅度电平与参考电平进行比较,跟踪伺服装置的跟踪伺服环路处于打开状态; 一种鉴别装置,用于根据比较器的结果来区分第一和第二组光盘。

    Information record medium
    84.
    发明授权
    Information record medium 失效
    信息记录媒体

    公开(公告)号:US06418112B1

    公开(公告)日:2002-07-09

    申请号:US09313364

    申请日:1999-05-18

    IPC分类号: G11B724

    摘要: An apparatus (C) manufactures an information record medium (DK), which has a track (G, L), on which information is optically recorded. The apparatus is provided with: a track forming device (40, 43, 50) for forming the track; and a transition portion forming device (40, 43, 50) for forming a transition portion (MG) for transiting an irradiation position (SP) of a light beam (LG, LL), which is used for illegally copying the information on the formed track, from an irradiation track (G2), which is irradiated by the light beam, to an adjacent track (G1), which is adjacent to the irradiation track and on which the information is recorded before the information is recorded on the irradiation track, such that the formed transition portion is continuous with the formed track.

    摘要翻译: 一种装置(C)制造具有轨道(G,L)的信息记录介质(DK),信息被光学地记录在其上。 该装置设有:用于形成轨道的轨迹形成装置(40,43,50) 以及用于形成用于过渡光束(LG,LL)的照射位置(SP)的过渡部分(MG))的过渡部分形成装置(40,43,50),用于非法复制形成的信息的信息 将从光束照射的照射轨道(G2)跟踪到与照射轨道相邻的相邻轨道(G1),并且在信息被记录在照射轨迹之前将信息记录在其上, 使得形成的过渡部分与形成的轨道连续。

    Dye recording medium having read-only area and recordable area
    87.
    发明授权
    Dye recording medium having read-only area and recordable area 失效
    染色记录介质具有只读区域和可记录区域

    公开(公告)号:US06587424B2

    公开(公告)日:2003-07-01

    申请号:US09935829

    申请日:2001-08-24

    IPC分类号: G11B724

    摘要: A dye record disc has a disc shape substrate having a track-forming surface divided into a read-only area and a recordable area. A reproducing track is formed on the track-forming surface in the read-only area, and has a plurality of pits, each of the pits comprising a dye material, and having a shape corresponding to the reproducing information. A recording/reproducing track is formed on the track-forming surface in the recordable area, and extends continuously, the recording/reproducing track comprising the same dye material as each of the pits. The information reproducing apparatus includes an initial light emitting device for emitting an initial light beam to all of the pits before reproduction, in order to change reflectance of all of the pits; a reproducing light emitting device for emitting a reproducing light to each of the pits; a receiving device for receiving reflected light of the reproducing light reflected by the reproducing track, and generating a receiving signal corresponding to the received reflective light; and a reproducing device for reproducing the reproducing information on the basis of the receiving signal.

    摘要翻译: 染料记录盘具有盘形基底,其具有被划分为只读区域和可记录区域的轨迹形成表面。 再现轨道形成在只读区域的轨道形成表面上,并且具有多个凹坑,每个凹坑包括染料材料,并且具有与再现信息相对应的形状。 记录/再现轨道形成在可记录区域的轨迹形成表面上,并且连续地延伸,记录/再现轨迹包括与每个凹坑相同的染料材料。 该信息再现装置包括:一个初始发光装置,用于在再现之前向所有的凹坑发射初始光束,以改变所有凹坑的反射率; 用于向每个凹坑发射再现光的再现发光装置; 接收装置,用于接收由再现轨迹反射的再现光的反射光,并产生对应于所接收的反射光的接收信号; 以及用于基于接收信号再现再现信息的再现装置。

    Dye record medium, record disc producing apparatus, and information recording/reproducing apparatus
    88.
    发明授权
    Dye record medium, record disc producing apparatus, and information recording/reproducing apparatus 失效
    染料记录介质,记录盘产生装置和信息记录/再现装置

    公开(公告)号:US06307824B1

    公开(公告)日:2001-10-23

    申请号:US09635408

    申请日:2000-08-10

    IPC分类号: G11B700

    摘要: A dye record disc has a disc shape substrate having a track-forming surface divided into a read-only area and a recordable area. A reproducing track is formed on the track-forming surface in the read-only area, and has a plurality of pits, each of the pits comprising a dye material, and having a shape corresponding to the reproducing information. A recording/reproducing track is formed on the track-forming surface in the recordable area, and extends continuously, the recording/reproducing track comprising the same dye material as each of the pits. The information reproducing apparatus includes an initial light emitting device for emitting an initial light beam to all of the pits before reproduction, in order to change reflectance of all of the pits; a reproducing light emitting device for emitting a reproducing light to each of the pits; a receiving device for receiving reflected light of the reproducing light reflected by the reproducing track, and generating a receiving signal corresponding to the received reflective light; and a reproducing device for reproducing the reproducing information on the basis of the receiving signal.

    摘要翻译: 染料记录盘具有盘形基底,其具有被划分为只读区域和可记录区域的轨迹形成表面。 再现轨道形成在只读区域的轨道形成表面上,并且具有多个凹坑,每个凹坑包括染料材料,并且具有与再现信息相对应的形状。 记录/再现轨道形成在可记录区域的轨道形成表面上,并且连续地延伸,记录/再现轨迹包括与每个凹坑相同的染料材料。 该信息再现装置包括:一个初始发光装置,用于在再现之前向所有的凹坑发射初始光束,以改变所有凹坑的反射率; 用于向每个凹坑发射再现光的再现发光装置; 接收装置,用于接收由再现轨迹反射的再现光的反射光,并产生对应于所接收的反射光的接收信号; 以及用于基于接收信号再现再现信息的再现装置。