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    • 3. 发明授权
    • Disc recording and reproducing device and disc recording and reproducing method
    • 光盘记录和再现设备和光盘记录和再现方法
    • US07817517B2
    • 2010-10-19
    • US11930531
    • 2007-10-31
    • Yoshihiro TomikuraJunji Soga
    • Yoshihiro TomikuraJunji Soga
    • G11B5/09
    • G11B23/288
    • A disc recording and reproducing device and method record video data using a new file system other existing device cannot recognize. However, when a disc thus recorded is loaded in the existing device, the user is prevented from being instructed to format the disc (initialize the file system) or inadvertently erasing data thereon. The disc recording and reproducing device comprises the following elements. A first write-enable state setting unit checks a write inhibit flag when a disc is loaded, and sets the flag on the disc to a write-enable state when the flag is in a write-protect state. A first write-protect state setting unit checks information in a record history information storage when the disc is unloaded, and sets the flag on the disc to the write-protect state when data is recorded thereon or the flag in the memory is in the write-protect state and no data is recorded.
    • 光盘记录和再现设备和方法使用新的文件系统记录其他现有设备的视频数据不能识别。 然而,当如此记录的盘被加载到现有设备中时,防止用户格式化盘(初始化文件系统)或无意中擦除其上的数据。 盘记录和再现装置包括以下元件。 第一写入使能状态设置单元在盘被加载时检查写入禁止标志,并且当标志处于写保护状态时,将盘上的标志设置为写使能状态。 第一写保护状态设置单元在盘被卸载时检查记录历史信息存储器中的信息,并且当数据被记录在其上时将盘上的标志设置为写保护状态,或者存储器中的标志位于写 - 保护状态,并且不记录任何数据。
    • 5. 发明申请
    • DISC RECORDING AND REPRODUCING DEVICE AND DISC RECORDING AND REPRODUCING METHOD
    • DISC记录和再现设备和盘记录和再现方法
    • US20080106992A1
    • 2008-05-08
    • US11930531
    • 2007-10-31
    • Yoshihiro TomikuraJunji Soga
    • Yoshihiro TomikuraJunji Soga
    • G11B15/04
    • G11B23/288
    • A disc recording and reproducing device and method record video data using a new file system other existing device cannot recognize. However, when a disc thus recorded is loaded in the existing device, the user is prevented from being instructed to format the disc (initialize the file system) or inadvertently erasing data thereon. The disc recording and reproducing device comprises the following elements. A first write-enable state setting unit checks a write inhibit flag when a disc is loaded, and sets the flag on the disc to a write-enable state when the flag is in a write-protect state. A first write-protect state setting unit checks information in a record history information storage when the disc is unloaded, and sets the flag on the disc to the write-protect state when data is recorded thereon or the flag in the memory is in the write-protect state and no data is recorded.
    • 光盘记录和再现设备和方法使用新的文件系统记录其他现有设备的视频数据不能识别。 然而,当如此记录的盘被加载到现有设备中时,防止用户格式化盘(初始化文件系统)或无意中擦除其上的数据。 盘记录和再现装置包括以下元件。 第一写入使能状态设置单元在盘被加载时检查写入禁止标志,并且当标志处于写保护状态时,将盘上的标志设置为写使能状态。 第一写保护状态设置单元在盘被卸载时检查记录历史信息存储器中的信息,并且当数据被记录在其上时将盘上的标志设置为写保护状态,或者存储器中的标志位于写 - 保护状态,并且不记录任何数据。