会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Self servo writing file
    • 自动伺服写入文件
    • US06040955A
    • 2000-03-21
    • US287477
    • 1994-08-08
    • Dana Henry BrownThomas Charles ChristensenEarl A. CunninghamWayne A. Rogelstad
    • Dana Henry BrownThomas Charles ChristensenEarl A. CunninghamWayne A. Rogelstad
    • G11B5/596G11B27/32G11B21/10
    • G11B5/59633G11B27/322
    • A self servo writing file and method for writing servo patterns in a direct access storage device are provided. First servo information is written on a data storage media at a first crash stop. The transducer heads are moved offset from the written servo information while reading the last written servo information until the detected servo signal equals a predetermined value. Then servo information is written on the data storage media responsive to the detected servo signal equal to the predetermined value. The moving and writing steps are sequentially repeating until a second crash stop is reached. A quad-burst servo amplitude pattern or phase pattern can be used for the servo information. The servo writing method is adapted easily for many different servo options. When the file uses a hybrid servo or sector servo, the other surfaces can be written by duplicating the servo bursts with a high bandwidth servo system of the file. Alternatively, the servo writing steps can be repeated for each of the other surfaces for providing head dependent pitch. Variable track pitch can be provided by selectively varying the predetermined value compared with the detected servo signal.
    • 提供一种用于在直接存取存储装置中写入伺服模式的自伺服写入文件和方法。 第一伺服信息在第一次碰撞停止时被写入数据存储介质。 当读取最后写入的伺服信息直到检测到的伺服信号等于预定值时,传感器头与写入的伺服信息偏移。 然后根据检测到的等于预定值的伺服信号将伺服信息写入数据存储介质上。 顺序重复移动和写入步骤,直到达到第二次碰撞停止。 伺服信息可以使用四脉冲串伺服幅度模式或相位模式。 伺服写入方式适用于许多不同的伺服选项。 当文件使用混合伺服或扇区伺服时,其他​​表面可以通过用文件的高带宽伺服系统复制伺服脉冲串来写入。 或者,可以针对每个其他表面重复伺服写入步骤,以提供与头部相关的音调。 可以通过与检测到的伺服信号相比选择性地改变预定值来提供可变轨道间距。
    • 3. 发明授权
    • Self servo writing file using the widest head
    • 自动写入文件使用最宽的头
    • US5949603A
    • 1999-09-07
    • US224792
    • 1999-01-04
    • Dana Henry BrownThomas Charles ChristensenEarl A. CunninghamWayne A. Rogelstad
    • Dana Henry BrownThomas Charles ChristensenEarl A. CunninghamWayne A. Rogelstad
    • G11B5/596G11B27/32G11B21/10
    • G11B5/59633G11B27/322
    • A self servo writing file and method for writing servo patterns in a direct access storage device are provided. First servo information is written on a data storage media at a first crash stop. The transducer heads are moved offset from the written servo information while reading the last written servo information until the detected servo signal equals a predetermined value. Then servo information is written on the data storage media responsive to the detected servo signal equal to the predetermined value. The moving and writing steps are sequentially repeated until a second crash stop is reached. A quad-burst servo amplitude pattern or phase pattern can be used for the servo information. The servo writing method is adapted easily for many different servo options. When the file uses a hybrid servo or sector servo, the other surfaces can be written by duplicating the servo bursts with a high bandwidth servo system of the file. Alternatively, the servo writing steps can be repeated for each of the other surfaces for providing head dependent pitch. Variable track pitch can be provided by selectively varying the predetermined value compared with the detected servo signal.
    • 提供一种用于在直接存取存储装置中写入伺服模式的自伺服写入文件和方法。 第一伺服信息在第一次碰撞停止时被写入数据存储介质。 当读取最后写入的伺服信息直到检测到的伺服信号等于预定值时,传感器头与写入的伺服信息偏移。 然后根据检测到的等于预定值的伺服信号将伺服信息写入数据存储介质上。 顺序重复移动和写入步骤,直到达到第二次碰撞停止。 伺服信息可以使用四脉冲串伺服幅度模式或相位模式。 伺服写入方式适用于许多不同的伺服选项。 当文件使用混合伺服或扇区伺服时,其他​​表面可以通过用文件的高带宽伺服系统复制伺服脉冲串来写入。 或者,可以针对每个其他表面重复伺服写入步骤,以提供与头部相关的音调。 可以通过与检测到的伺服信号相比选择性地改变预定值来提供可变轨道间距。
    • 4. 发明授权
    • Disk storage device with spiral data track and incremental error offsets
in angularly spaced imbedded concentric servo patterns
    • 具有螺旋数据轨迹的磁盘存储设备和以角度间隔嵌入的同心伺服模式的增量误差偏移
    • US5619387A
    • 1997-04-08
    • US689582
    • 1996-08-12
    • Hal H. OttesenEarl A. CunninghamRichard GreenbergDana H. Brown
    • Hal H. OttesenEarl A. CunninghamRichard GreenbergDana H. Brown
    • G11B5/012G11B5/55G11B5/596G11B7/0037G11B19/20G11B19/247G11B20/12G11B21/00G11B21/02G11B21/04G11B27/00G11B27/10H04N7/173
    • G11B5/5965G11B19/20G11B19/2009G11B19/247G11B20/12G11B20/1258G11B21/00G11B21/02G11B21/04G11B27/002G11B27/105G11B5/012G11B5/5521G11B5/5526H04N7/17336G11B2020/10916G11B2220/20G11B2220/41G11B2220/415G11B7/0037
    • A disk drive stores multimedia data in long spiral data tracks. The tracks on opposite surfaces of the disk spiral in opposite directions, so that a track on one surface can be read as the actuator sweeps in, and a track on the opposite surface can be read as the actuator sweeps out. Because the actuator only follows spiral tracks without performing long seek operations, the actuator motor can be reduced in size and stresses on actuator bearings and other parts are reduced. Additionally, due to reduced disturbances associated with seeks, it is possible to follow tracks more closely and therefore reduce the width of individual tracks. Further cost reductions are accomplished by spinning the disks at a slower speed and reducing the size of the spin motor accordingly. Finally, data density can be increased simply because multimedia data does not require the same low error rate as conventional data. Preferably, a group of disk drives optimized for multimedia data is used to form a video-on-demand system. Compressed, interleaved portions of a video presentation, such as a motion picture, are stored in blocks on the spiral tracks. The drives read the blocks on one spiral track at a time from beginning to end, placing the data from these blocks in a set of buffers corresponding to different short time intervals. Video signals are output from the buffers. Any short time interval of the presentation can be accessed on demand by switching to the appropriate buffer.
    • 磁盘驱动器将多媒体数据存储在长螺旋数据轨道中。 盘的相对表面上的轨迹以相反的方向螺旋,使得当致动器扫过时可以读取一个表面上的轨道,并且当致动器扫过时可以读取相对表面上的轨道。 由于执行器只能沿着螺旋轨道进行,而不需要执行长时间的寻道操作,所以致动器马达的尺寸和致动器轴承的应力减小,其他部件也减少。 另外,由于与寻找相关联的干扰减少,可以更紧密地跟踪轨道,并因此减小各个轨道的宽度。 通过以较慢的速度旋转盘并相应地减小旋转马达的尺寸来实现进一步的成本降低。 最后,数据密度可以简单地增加,因为多媒体数据不需要与传统数据相同的低错误率。 优选地,使用针对多媒体数据优化的一组磁盘驱动器来形成视频点播系统。 诸如运动图像的视频呈现的压缩的交错部分被存储在螺旋轨道上的块中。 驱动器从开始到结束一次读取一个螺旋轨道上的块,将来自这些块的数据放置在对应于不同短时间间隔的一组缓冲器中。 视频信号从缓冲器输出。 通过切换到适当的缓冲区,可以根据需要访问演示的任何短时间间隔。