公开(公告)号：US08369190B2

公开(公告)日：2013-02-05

申请号：US13079544

申请日：2011-04-04

申请人： Arup Polley ,  Rajarshi Mukhopadhyay ,  Reza Sharifi ,  Mark A. Wolfe

发明人： Arup Polley ,  Rajarshi Mukhopadhyay ,  Reza Sharifi ,  Mark A. Wolfe

IPC分类号： G11B11/00 ,  G11B21/02

CPC分类号： G11B21/21 ,  G11B5/6029 ,  G11B5/6076

摘要： A data storage system for detecting a location of a head relative to a magnetic media is described. This system comprises arms, a preamplifier circuit coupled to the arms for controlling the arms, a proximity sensing system positioned within the preamplifier circuit, the proximity sensing system comprising: an input stage for transmitting an input sense signal; a programmable gain stage coupled to receive the input sense signal and operative for transmitting a gain signal in response to receiving the input sense signal; a multiplexer coupled to receive the gain signal and at least one control signal, the multiplexer operative for transmitting a multiplexed signal; a detector coupled to receive the multiplexed signal and a second control signal, the detector operative for transmitting an output signal; wherein an amplitude associated with the output signal enables detecting the location of the head.

公开(公告)号：US20120250484A1

公开(公告)日：2012-10-04

申请号：US13079544

申请日：2011-04-04

申请人： Arup Polley ,  Rajarshi Mukhopadhyay ,  Reza Sharifi ,  Mark A. Wolfe

发明人： Arup Polley ,  Rajarshi Mukhopadhyay ,  Reza Sharifi ,  Mark A. Wolfe

IPC分类号： G11B27/36

CPC分类号： G11B21/21 ,  G11B5/6029 ,  G11B5/6076

摘要： A data storage system for detecting a location of a head relative to a magnetic media is described. This system comprises arms, a preamplifier circuit coupled to the arms for controlling the arms, a proximity sensing system positioned within the preamplifier circuit, the proximity sensing system comprising: an input stage for transmitting an input sense signal; a programmable gain stage coupled to receive the input sense signal and operative for transmitting a gain signal in response to receiving the input sense signal; a multiplexer coupled to receive the gain signal and at least one control signal, the multiplexer operative for transmitting a multiplexed signal; a detector coupled to receive the multiplexed signal and a second control signal, the detector operative for transmitting an output signal; wherein an amplitude associated with the output signal enables detecting the location of the head.

摘要翻译： 描述了一种用于检测头相对于磁性介质的位置的数据存储系统。 该系统包括臂，耦合到用于控制臂的臂的前置放大器电路，位于前置放大器电路内的接近感测系统，所述接近感测系统包括：用于传输输入感测信号的输入级; 可编程增益级，其被耦合以接收所述输入检测信号并且用于响应于接收所述输入检测信号而发送增益信号; 多路复用器，其耦合以接收增益信号和至少一个控制信号，所述多路复用器用于发送多路复用信号; 耦合以接收所述多路复用信号的检测器和第二控制信号，所述检测器用于发送输出信号; 其中与输出信号相关联的振幅使得能够检测头部的位置。