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1. 发明授权

US6118632A Magnetic disk stack having laser-bump identifiers on magnetic disks 失效
标题翻译：磁盘堆在磁盘上具有激光凸点标识符
公开(公告)号：US6118632A
公开(公告)日：2000-09-12
申请号：US800097
申请日：1997-02-12
申请人： Thomas Robert Albrecht , Peter Michael Baumgart , Thao Anh Nguyen , Kurt Allen Rubin , Andrew Ching Tam
发明人： Thomas Robert Albrecht , Peter Michael Baumgart , Thao Anh Nguyen , Kurt Allen Rubin , Andrew Ching Tam
IPC分类号： G11B5/00 , G11B5/012 , G11B5/016 , G11B5/09 , G11B5/65 , G11B5/73 , G11B5/738 , G11B5/82 , G11B5/84 , G11B11/10 , G11B13/00 , G11B20/10 , G11B27/11 , G11B27/24
CPC分类号： G11B5/012 , G11B27/11 , G11B27/24 , G11B5/82 , G11B2005/001 , G11B2220/20 , G11B2220/65
摘要： A magnetic disk with nonmagnetic information encoded under, in or above the magnetic layer of the disk is described along with the disk drive using the magnetic disks. The information may be stored as a series of laser-written marks (e.g., bumps, oxidized spots or spots with altered reflectivity) upon the surface(s) of each disk of the disk stack. The set of marks may be a series of laser bumps which serve a dual purpose as a landing zone or contact start/stop (CSS) zone for the slider and as encoded identifying information. During the manufacturing process for disk drives containing the disks, each disk's identifier can be read using outboard equipment such as an HRF tester or by means contained in the drive itself. Each disk identifier can then be stored magnetically in a special region of the hard disk reserved for use by the drive and/or within the flash memory of the hard drive. The drive can then communicate the identifier(s) to a host computer using the conventional communication hardware and firmware. In this way selected information such as the origin, batch number, date of manufacture, serial number, etc. of any disk can be obtained when needed as, for example, as part of failure analysis.
摘要翻译：与使用磁盘的磁盘驱动器一起描述在磁盘的磁性层下面或上方编码的具有非磁性信息的磁盘。信息可以作为一系列激光写入的标记（例如，具有改变的反射率的凸起，氧化点或斑点）存储在盘堆叠的每个盘的表面上。该组标记可以是一系列激光凸块，其作为滑块的着陆区域或接触开始/停止（CSS）区域和作为编码的识别信息的双重目的。在包含磁盘的磁盘驱动器的制造过程中，可以使用诸如HRF测试仪之类的外部设备或驱动器本身包含的方式读取每个磁盘的标识符。然后可以将磁盘的每个标识符磁性地存储在硬盘的特殊区域中，以供驱动器使用和/或在硬盘驱动器的闪存中使用。然后，驱动器可以使用传统的通信硬件和固件将标识符传送到主计算机。以这种方式，当需要时，例如作为故障分析的一部分，可以获得任何盘的原点，批号，制造日期，序列号等所选择的信息。

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