专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06549363B2 Optical servo system for a tape drive 失效
公开(公告)号：US06549363B2
公开(公告)日：2003-04-15
申请号：US10116403
申请日：2002-04-04
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B555
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

2. 发明授权

US06480351B2 Optical servo system for a tape drive 有权
公开(公告)号：US06480351B2
公开(公告)日：2002-11-12
申请号：US09775893
申请日：2001-02-05
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B5584
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

3. 发明授权

US5850328A Media for recording data on two sides of a magnetic tape having angularly displaced orientations 失效
标题翻译：用于在具有角位移方向的磁带的两侧记录数据的介质
公开(公告)号：US5850328A
公开(公告)日：1998-12-15
申请号：US969848
申请日：1997-11-14
申请人： Michael Lawrence Leonhardt , Hartvig Edmund Melbye
发明人： Michael Lawrence Leonhardt , Hartvig Edmund Melbye
IPC分类号： G11B5/008 , G11B5/02 , G11B5/48 , G11B5/78 , G11B15/67
CPC分类号： G11B5/4893 , G11B15/673 , G11B5/00813 , G11B5/00817 , G11B5/02 , G11B5/78
摘要： The two sided magnetic recording tape consists of a standard film substrate to which a coating of magnetic recording materials is applied, on both sides thereof. In order to reduce the effect of magnetic print through and contact recording, the particles or films that are applied to both sides of the substrate are oriented during manufacture in differing magnetic orientations that are angularly displaced with respect to each other, either coplanar or non-coplanar on the recording surface of the magnetic tape.
摘要翻译：双面磁记录带由其两面施加有磁记录材料的涂层的标准膜基材组成。为了减少磁性印刷通过和接触记录的影响，施加到基板两侧的颗粒或薄膜在制造过程中被定向在不同的磁方向上，这两个方向相对于彼此有角度位移，共面在磁带的记录表面上。

4. 发明授权

US06529996B1 Network attached virtual tape data storage subsystem 有权
标题翻译：网络连接的虚拟磁带数据存储子系统
公开(公告)号：US06529996B1
公开(公告)日：2003-03-04
申请号：US09343512
申请日：1999-06-30
申请人： Thai Nguyen , Robert Michael Raymond , Michael Lawrence Leonhardt
发明人： Thai Nguyen , Robert Michael Raymond , Michael Lawrence Leonhardt
IPC分类号： G06F1200
CPC分类号： G11B15/68 , G06F3/0626 , G06F3/0664 , G06F3/067
摘要： The network attached virtual tape storage subsystem interconnects a plurality of tape devices with a plurality of data processors via a high bandwidth switching network to implement a virtual, distributed tape data storage subsystem. The virtual, distributed tape data storage system realizes multiple virtual devices, which are available to any of the data processors and the bandwidth of the system is scalable and can be changed on demand. The virtual tape storage subsystem is managed by a system controller which contains a plurality of software elements including: resource allocation, resource configuration, and resource management. The use of a networked storage manager enables the tape devices to be managed as a pool and yet attach the tape devices directly to the network as individual resources. The networked storage manager must provide the mechanism for the enterprise management to control tape device allocation and configuration as well as other functions, such as tape cartridge movement and data migration.
摘要翻译：网络连接的虚拟磁带存储子系统通过高带宽交换网络将多个磁带设备与多个数据处理器互连，以实现虚拟的分布式磁带数据存储子系统。虚拟分布式磁带数据存储系统实现多个虚拟设备，这些虚拟设备可用于任何数据处理器，并且系统的带宽是可扩展的，可以根据需要进行更改。虚拟磁带存储子系统由包含多个软件元素的系统控制器管理，包括：资源分配，资源配置和资源管理。使用网络存储管理器可以将磁带设备作为池进行管理，并将磁带设备作为个别资源直接附加到网络。网络存储管理器必须提供企业管理机制来控制磁带设备分配和配置以及其他功能，如磁带盒移动和数据迁移。

5. 发明授权

US6084740A Optical servo system for a tape drive 失效
公开(公告)号：US6084740A
公开(公告)日：2000-07-04
申请号：US980723
申请日：1997-12-01
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B5/55 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/60 , G11B20/00 , G11B21/08 , G11B21/10 , G11B27/10 , G11B27/26 , G11B27/36
CPC分类号： G11B27/107 , G11B15/08 , G11B15/602 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B20/00086 , G11B20/0021 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

6. 发明授权

US06236529B1 Optical servo system for a tape drive 有权
公开(公告)号：US06236529B1
公开(公告)日：2001-05-22
申请号：US09577017
申请日：2000-05-22
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B5584
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

7. 发明授权

US5719717A System for providing transparent storage or error correction/data reconstruction/data block search data embedded within predefined recording formats 失效
标题翻译：用于提供嵌入预定义记录格式的透明存储或纠错/数据重建/数据块搜索数据的系统
公开(公告)号：US5719717A
公开(公告)日：1998-02-17
申请号：US510588
申请日：1995-08-02
申请人： Michael Lawrence Leonhardt , Charles A. Milligan
发明人： Michael Lawrence Leonhardt , Charles A. Milligan
IPC分类号： G11B19/02 , G11B20/00 , G11B20/12 , G11B20/18 , G11B27/30 , G11B5/09
CPC分类号： G11B20/1833 , G11B19/02 , G11B20/12 , G11B27/3027 , G11B20/00086 , G11B2220/90
摘要： A method is described which provides various new data storage system capabilities by using data storage structures within industry standard (or other pre-existing) formats used with data recording devices employing removable media. The data storage structures used by the present method comprise formats which contain regions previously marked as "contents of this region are not of interest" or marked as "no data was recorded within this region". These data storage structures are thus transparent to present data recording devices so as not to disrupt their data processing functions. However, the data storage structures are available to be used by new data recording devices (or old devices that have been updated) so that new data embedded therein may be used to enhance the functionality of the system which utilizes the data storage structures. The types of embedded data may include ECC (error correction codes), tape position information, audit information, security information, mount history, media defect history, authentication notation, generation-identification notation, etc.
摘要翻译：描述了一种通过使用与使用可移动介质的数据记录装置一起使用的工业标准（或其他预先存在的）格式中的数据存储结构来提供各种新的数据存储系统能力的方法。本方法使用的数据存储结构包括以前标记为“该区域的内容不感兴趣”的标记为“在该区域内没有记录数据”的区域的格式。因此，这些数据存储结构对于呈现数据记录装置是透明的，以免中断其数据处理功能。然而，数据存储结构可被新数据记录设备（或已更新的旧设备）使用，使得嵌入其中的新数据可以用于增强利用数据存储结构的系统的功能。嵌入数据的类型可以包括ECC（纠错码），磁带位置信息，审计信息，安全信息，安装历史，介质缺陷历史，认证符号，生成识别符号等。

8. 发明授权

US5696755A System for minimizing the effects of scratches on recording media 失效
标题翻译：用于最小化划痕对记录介质的影响的系统
公开(公告)号：US5696755A
公开(公告)日：1997-12-09
申请号：US971453
申请日：1992-11-04
申请人： Michael Lawrence Leonhardt
发明人： Michael Lawrence Leonhardt
IPC分类号： G11B5/008 , G11B5/012 , G11B7/003 , G11B7/09 , G11B11/18 , G11B21/02 , G11B21/08 , G11B21/10 , G11B7/00
CPC分类号： G11B5/012 , G11B11/18 , G11B21/081 , G11B21/10 , G11B5/00817 , G11B7/003 , G11B7/0904 , G11B7/0948 , G11B21/02
摘要： A system is disclosed which significantly reduces the susceptibility of a recording media to data loss due to scratches. The system uses a signal generator function to inject a periodic, small amplitude dither signal into the head positioning servo system during a write or preformatting operation to the media. This dither signal is typically sinusoidial and causes the data tracks to effectively wander back and forth over longitudinal scratches on tape media or circular scratches on disk media. The data tracks are thus never coincident with a large portion of the scratch. During read-back of the media, a tracking servo system in the tape or disk drive follows the data written on each dithered track. Since the amplitude, period, and shape of the dither's periodic offset are fixed and known in advance, the servo can effectively track the data on the tape without compromising head positioning performance. Freed from correcting scratch induced errors, the error detection and correction circuitry used with the drive system can be simplified and/or optimized to better handle non-scratch related errors.
摘要翻译：公开了一种系统，其显着地降低了记录介质对由划痕造成的数据丢失的敏感性。在向介质的写入或预格式化操作期间，系统使用信号发生器功能将周期性的小振幅抖动信号注入到头部定位伺服系统中。这种抖动信号通常是正弦信号，并使数据轨迹有效地在磁带介质上的纵向划痕或磁盘介质上的圆形划痕上来回移动。因此，数据轨道从不与划痕的大部分重合。在介质回读期间，磁带或磁盘驱动器中的跟踪伺服系统遵循写在每个抖动轨道上的数据。由于抖动的周期性偏移的幅度，周期和形状是固定的并且已知的，所以伺服器可以有效地跟踪磁带上的数据而不影响磁头定位性能。无需修正划痕引起的错误，可以简化和/或优化与驱动系统一起使用的错误检测和校正电路，以更好地处理非划痕相关错误。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式