Optical information recording medium and method of manufacturing
    74.
    发明授权
    Optical information recording medium and method of manufacturing 有权
    光学信息记录介质及其制造方法

    公开(公告)号:US6014364A

    公开(公告)日:2000-01-11

    申请号:US317843

    申请日:1999-05-25

    摘要: An optical information recording medium which can be played back by both a playback system for an SD (Super-density Disk) and a playback system for an HDMCD (High Density Multimedia Compact Disk), or by both the playback system for the SD and a playback system for a CD (Compact Disk). The optical information recording medium comprises a first transparent substrate which includes a smooth surface, and a first information surface bearing pits correspondent to first recorded information, the first information surface being covered with a semitransparent film which transmits part of a playback beam and reflects part thereof; and a second transparent substrate which includes a smooth surface, and a second information surface bearing pits correspondent to second recorded information, the second information surface being covered with a reflective film which reflects the greater part of the playback beam; the second transparent substrate being stacked on the first transparent substrate with the first information surface of the latter overlaid by the smooth surface of the former.

    摘要翻译: 可以由用于SD(超级密度盘)的重放系统和用于HDMCD(高密度多媒体光盘)的重放系统)或由SD的再现系统和用于SD的重放系统 用于CD(光盘)的播放系统。 光信息记录介质包括:第一透明基板,其包括平滑表面;以及第一信息表面轴承凹坑,其对应于第一记录信息;第一信息表面被半透明膜覆盖,半透明膜透射部分回放光束并反射其中的一部分 ; 以及第二透明基板,其包括光滑表面,并且第二信息表面承载凹坑对应于第二记录信息,所述第二信息表面被反射膜覆盖,所述反射膜反映所述重放光束的较大部分; 第二透明基板被堆叠在第一透明基板上,其中第一透明基板的第一信息表面由前者的光滑表面覆盖。

    Dual CD/DVD player with automatic disc identification
    76.
    发明授权
    Dual CD/DVD player with automatic disc identification 失效
    双CD / DVD播放机,具有自动光盘识别功能

    公开(公告)号:US5986985A

    公开(公告)日:1999-11-16

    申请号:US969641

    申请日:1997-11-13

    摘要: An apparatus for playing back an optical recording medium automatically and quickly identifies the kind of optically recorded disc (CD or DVD) loaded in the apparatus. After a disc to be checked has been loaded in the apparatus, the disc is first driven in a DVD servo mode. If a peak value of a focus error signal detected in this mode is larger than a threshold value, the checked disc is recognized as a DVD. If the detected peak value of the focus error signal is smaller than the threshold value, the checked disc is thereafter driven in a CD servo mode. The checked disc is recognized as a CD if a peak value of a focus error signal detected in this mode is larger than a threshold value, which may be different from the above-mentioned threshold value.

    摘要翻译: 一种用于自动地重放光学记录介质并快速识别装载在该装置中的光学记录盘(CD或DVD)的种类的装置。 在要检查的光盘已装入设备之后,首先以DVD伺服模式驱动光盘。 如果在该模式中检测到的聚焦误差信号的峰值大于阈值,则所检查的光盘被识别为DVD。 如果检测到的聚焦误差信号的峰值小于阈值,则以CD伺服模式驱动所检查的光盘。 如果在该模式中检测到的聚焦误差信号的峰值大于可能与上述阈值不同的阈值,则所检查的盘被识别为CD。

    Trading card optical compact disc and methods of using and forming same
    77.
    发明授权
    Trading card optical compact disc and methods of using and forming same 失效
    交易卡光学光盘及其使用和形成方法

    公开(公告)号:US5982736A

    公开(公告)日:1999-11-09

    申请号:US856915

    申请日:1997-05-15

    申请人: Gerald A. Pierson

    发明人: Gerald A. Pierson

    摘要: A trading card optical compact disc and method of using and forming the compact disc are provided which are compatible with a disc reader having a centrally located spindle and a seating ring for supporting and rotating a compact disc positioned thereon. The trading card optical compact disc according to an embodiment of the invention preferably has at least a first plastic rectangular layer having a width of about 2.5 inches and a length of about 3.5 inches and having a pattern of digital data encoded thereon. A second metallic layer is formed on at least portions of the first plastic layer, and a third protective layer is formed on at least the second layer for protecting the metallic layer. An indicia bearing fourth layer is formed on the third layer and has a generally planar upper surface for displaying indicia therefrom. An opening extends through the first, second, third, and fourth layers in a medial portion thereof. A trading card interface seat is preferably integrally formed in at least the first layer for seating the trading card onto a loading tray of a disc reader so as to interface with only portions of the seating ring of the disc reader and to read digital data stored thereon from the trading card optical compact disc.

    摘要翻译: 提供一种交易卡光学光盘以及使用和形成光盘的方法,其与具有居中定位的心轴的光盘读取器和用于支撑和旋转定位在其上的光盘的座圈相配合。 根据本发明的实施例的交易卡光学光盘优选地具有至少第一塑料矩形层,其具有约2.5英寸的宽度和约3.5英寸的长度,并且具有在其上编码的数字数据的图案。 在第一塑料层的至少一部分上形成第二金属层,并且在至少第二层上形成第三保护层以保护金属层。 具有第四层的标记形成在第三层上,并且具有用于从其显示标记的大致平面的上表面。 开口在其中间部分延伸穿过第一,第二,第三和第四层。 交易卡接口座优选地一体地形成在至少第一层中,用于将交易卡安置在盘读取器的装载盘上,以便仅与盘读取器的座环的部分相接触并且读取存储在其上的数字数据 从交易卡光盘。

    Method and apparatus for checking the quality of CD-ROMs or the like for
reading them at matching speeds
    78.
    发明授权
    Method and apparatus for checking the quality of CD-ROMs or the like for reading them at matching speeds 失效
    用于检查用于以匹配速度读取的CD-ROM等的质量的方法和装置

    公开(公告)号:US5982725A

    公开(公告)日:1999-11-09

    申请号:US888881

    申请日:1997-07-07

    摘要: CD-ROMS of poor quality, such as those having eccentric center holes or uneven weight distributions circumferentially, are easy to wobble or otherwise vibrate when driven at high speed, overloading tracking and focusing servos and inviting read errors and retries. Each CD-ROM on being loaded into a CD-ROM drive is therefore checked as to its quality in terms of the speed of rotation at which the disk drive motor gains a steady state on being started up at a full supply voltage. The poorer the disk quality, the lower is the steady state speed of motor rotation. A poor quality disk is read at four times the standard audio CD speed, an intermediate quality disk at eight times that speed, and a good quality disk at twelve times that speed.

    摘要翻译: 质量差的CD-ROMS,例如具有偏心中心孔或重量分布不均匀的CD-ROMS在高速驱动时容易摇摆或振动,过载跟踪和聚焦伺服,并引起读取错误和重试。 因此,在加载到CD-ROM驱动器中的每个CD-ROM的质量就其在盘驱动电动机在全电源电压下启动时获得稳定状态的旋转速度方面被检查。 磁盘质量越差,电机旋转的稳态速度越低。 以四倍的标准音频CD速度读取质量差的磁盘,以8倍速的中间质量磁盘读取,并以十倍的速度读取优质磁盘。

    Integrated calibration apparatus for a multi-mode information storage
system
    79.
    发明授权
    Integrated calibration apparatus for a multi-mode information storage system 失效
    用于多模式信息存储系统的集成校准装置

    公开(公告)号:US5978335A

    公开(公告)日:1999-11-02

    申请号:US672862

    申请日:1996-06-28

    摘要: An integrated calibration apparatus operates in multiple calibration modes of a multi-mode information storage system such as an optical disk drive to calibrate the drive in the multiple write modes. An event processing and measurement circuit is configurable in multiple configurations that each correspond to a different calibration measurement. Each configuration concurrently measures one or more parameters of readback data written to an optical disk by the optical disk drive operating in a particular write mode. A qualification circuit selects valid measurements for two different parameters or for two different qualification of the same parameter. A summation circuit sums valid measurements of each parameter measured and counts the number of measurements summed for each parameter. The calibration apparatus calculates average values for the measured parameters from the sums and counts, and then calibrates the multi-mode optical disk drive for its current write mode based on the average values.

    摘要翻译: 集成校准装置在诸如光盘驱动器的多模式信息存储系统的多个校准模式中操作,以校准多个写入模式中的驱动器。 事件处理和测量电路可配置为多个配置,每个配置对应于不同的校准测量。 每个配置同时测量由特定写入模式操作的光盘驱动器写入光盘的回读数据的一个或多个参数。 鉴定电路为两个不同的参数或相同参数的两个不同资格选择有效的测量。 求和电路对所测量的每个参数的有效测量进行求和,并对每个参数求和的测量次数进行计数。 校准装置根据总和和计数计算测量参数的平均值,然后基于平均值校准多模光盘驱动器的当前写入模式。

    Disk discrimination method for digital versatile disk system
    80.
    发明授权
    Disk discrimination method for digital versatile disk system 失效
    数字通用磁盘系统的磁盘识别方法

    公开(公告)号:US5966357A

    公开(公告)日:1999-10-12

    申请号:US883706

    申请日:1997-06-27

    申请人: Jai-Choon Ryoo

    发明人: Jai-Choon Ryoo

    摘要: A disk discrimination method for a digital versatile disk (DVD) system uses a sum signal and a focus error signal as a difference signal obtained from the amount of light detected from divided optical detection areas of a divided-by-eight photodiode in a loaded disk, to discriminate whether a loaded disk is a DVD or compact disk (CD). When offsets of the sum signal and the focus error signal are normal, and are larger than predetermined reference signals, it is judged that the loaded disk is a DVD, while the loaded disk is judged to be a CD when the sum signal and the focus error signal are smaller than the reference signals. When disk type discrimination fails, an optical pickup moves a predetermined number of times to retry discrimination. Such discrimination method increases reliability of the discrimination results.

    摘要翻译: 用于数字通用盘(DVD)系统的盘识别方法使用和信号和聚焦误差信号作为从在加载盘中的八分之一光电二极管的分割光检测区域检测的光量获得的差信号 以鉴别加载的盘是DVD还是光盘(CD)。 当和信号和聚焦误差信号的偏移正常并且大于预定的参考信号时,判断装入的盘是DVD,而当和信号和焦点被判定为CD时 误差信号小于参考信号。 当盘类型识别失败时,光学拾取器移动预定次数以重试鉴别。 这种辨别方法提高了辨别结果的可靠性。