
基本信息:
- 专利标题: FLY HEIGHT COMPENSATION USING READ GAIN CONTROL LOOP
- 专利标题(中):使用读取增益控制环的飞行高度补偿
- 申请号:US11851534 申请日:2007-09-07
- 公开(公告)号:US20090067095A1 公开(公告)日:2009-03-12
- 发明人: HonYeong Mak , LinNah Lim , DetHau Wu , Edmun ChianSong Seng , UttHeng Kan
- 申请人: HonYeong Mak , LinNah Lim , DetHau Wu , Edmun ChianSong Seng , UttHeng Kan
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 主分类号: G11B5/60
- IPC分类号: G11B5/60 ; G11B21/20
摘要:
Apparatus and methods are disclosed that regulate head fly height so as to compensate for variation in height of a disk surface. An exemplary apparatus includes a circuit that detects disk height variation in response to variation in the gain of a variable gain amplifier, within an automatic gain control loop, that amplifies a read signal as the head reads from the disk surface. The circuit regulates the head fly height so as to compensate for the detected variation in disk height.
摘要(中):
公开了调节头部飞行高度以补偿盘表面的高度变化的装置和方法。 一种示例性装置包括一个电路,该电路在自动增益控制环路内检测响应于可变增益放大器的增益变化的盘高度变化,当磁头从磁盘表面读取时放大读取信号。 电路调节磁头高度,以补偿检测到的磁盘高度变化。
公开/授权文献:
- US07508617B1 Fly height compensation using read gain control loop 公开/授权日:2009-03-24
IPC结构图谱:
G | 物理 |
--G11 | 信息存储 |
----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
------G11B5/00 | 借助于记录载体的激磁或退磁进行记录的;用磁性方法进行重现的;为此所用的记录载体 |
--------G11B5/48 | .磁头相对于记录载体的配置或安装 |
----------G11B5/58 | ..具有在换能工作期间为保持磁头对准记录载体而移动磁头的设施的,例如,补偿记录载体表面的不规则性或轨迹跟踪的 |
------------G11B5/60 | ...磁头离记录载体的流体动力学间隙 |