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    • 1. 发明申请
    • Pause strategy for magnetic tape recording
    • 暂停磁带录音策略
    • US20060204209A1
    • 2006-09-14
    • US11075818
    • 2005-03-09
    • Michael BlatchleyPaul NewsomeRichard McAuliffeRandall Bauck
    • Michael BlatchleyPaul NewsomeRichard McAuliffeRandall Bauck
    • H04N5/91
    • G11B27/36G11B15/1825G11B27/107G11B2220/91
    • A helical scan tape recorder (30) comprises a rotatable scanner (84) and a transport system for transporting magnetic tape proximate the rotatable scanner in a manner so that information is recorded during a revolution of the scanner. A controller performs a pause routine (120) for pausing during a recording operation on tape. The pause routine, when executed, performs the steps of: determining a tape pause position reference value indicative of a pre-pause last recording position on the tape; recording an erase signal on the tape after the pre-pause last recording position; rewinding the tape; transporting the tape in a forward direction and obtaining a current tape position value; determining when the current tape position value reaches a predetermined value relative to the tape pause position reference value; and at beginning of a next revolution of the scanner, commencing recording of one or more post-pause stripes on the tape. In an example implementation, the predetermined value relative to the tape pause position reference value is a sum of the tape pause position reference value and an offset.
    • 螺旋扫描磁带录像机(30)包括可旋转的扫描器(84)和用于以可在扫描仪转动期间记录信息的方式传送靠近可旋转扫描器的磁带的传送系统。 控制器执行在磁带上的记录操作期间暂停的暂停例程(120)。 暂停程序在执行时执行以下步骤:确定表示磁带上的暂停前最后记录位置的磁带暂停位置参考值; 在预暂停最后记录位置之后,在磁带上记录擦除信号; 倒带; 沿前进方向传送磁带并获得当前磁带位置值; 确定当前磁带位置值何时相对于磁带暂停位置参考值达到预定值; 并且在扫描仪的下一个旋转开始时,开始在磁带上记录一个或多个后暂停条纹。 在示例实现中,相对于磁带暂停位置参考值的预定值是磁带暂停位置参考值和偏移量之和。
    • 3. 发明申请
    • Data randomization for rewriting in recording/reproduction apparatus
    • 用于在记录/再现设备中重写的数据随机化
    • US20060203367A1
    • 2006-09-14
    • US11074937
    • 2005-03-09
    • Richard McAuliffePaul Newsome
    • Richard McAuliffePaul Newsome
    • G11B20/10
    • G11B20/1879G11B20/1201G11B20/1426G11B2020/183G11B2220/91
    • A data recording/recovery device (20) comprises a packet generator (34) for including recordable information into a packet (44), the packet initially having a nominal run length limited (RLL) sequence if it were RLL encoded. A randomizer (38) uses a randomizer input value (50) to obtain a modified packet (46) which, when encoded, will at least partially have a different run length limited sequence than the nominal run length limited sequence. A write channel (40) records the modified packet (46) as a track packet at a destination physical location (42) on a storage medium (22). The randomizer input value (50) used to obtain the modified packet (46) is related to a predetermined physical location on the storage medium. In one example embodiment the randomizer input value is related to the destination physical location on the storage medium.
    • 数据记录/恢复装置(20)包括用于将可记录信息包括在分组(44)中的分组生成器(34),如果RLL被编码,则该分组首先具有标称游程长度限制(RLL)序列。 随机化器(38)使用随机化器输入值(50)来获得修改的分组(46),其被编码时将至少部分地具有与标称游程长度限制序列不同的游程长度限制序列。 写通道(40)将经修改的分组(46)作为轨道分组记录在存储介质(22)上的目的地物理位置(42)。 用于获得修改的分组(46)的随机化器输入值(50)与存储介质上的预定物理位置有关。 在一个示例实施例中,随机化器输入值与存储介质上的目的地物理位置相关。
    • 4. 发明授权
    • Data randomization for rewriting in recording/reproduction apparatus
    • 用于在记录/再现设备中重写的数据随机化
    • US07433141B2
    • 2008-10-07
    • US11074937
    • 2005-03-09
    • Richard H. McAuliffePaul Newsome
    • Richard H. McAuliffePaul Newsome
    • G11B20/10G11B20/12
    • G11B20/1879G11B20/1201G11B20/1426G11B2020/183G11B2220/91
    • A data recording/recovery device (20) comprises a packet generator (34) for including recordable information into a packet (44), the packet initially having a nominal run length limited (RLL) sequence if it were RLL encoded. A randomizer (38) uses a randomizer input value (50) to obtain a modified packet (46) which, when encoded, will at least partially have a different run length limited sequence than the nominal run length limited sequence. A write channel (40) records the modified packet (46) as a track packet at a destination physical location (42) on a storage medium (22). The randomizer input value (50) used to obtain the modified packet (46) is related to a predetermined physical location on the storage medium. In one example embodiment the randomizer input value is related to the destination physical location on the storage medium.
    • 数据记录/恢复装置(20)包括用于将可记录信息包括在分组(44)中的分组生成器(34),如果RLL被编码,则该分组首先具有标称游程长度限制(RLL)序列。 随机化器(38)使用随机化器输入值(50)来获得修改的分组(46),其被编码时将至少部分地具有与标称游程长度限制序列不同的游程长度限制序列。 写通道(40)将经修改的分组(46)作为轨道分组记录在存储介质(22)上的目的地物理位置(42)。 用于获得修改的分组(46)的随机化器输入值(50)与存储介质上的预定物理位置有关。 在一个示例实施例中,随机化器输入值与存储介质上的目的地物理位置相关。