公开(公告)号：US08917468B1

公开(公告)日：2014-12-23

申请号：US13941472

申请日：2013-07-13

Applicant: LSI Corporation

Inventor： Jefferson E. Singleton ,  Scott Dziak

IPC: G11B5/09 ,  G11B20/18

CPC classification number: G11B20/182

Abstract: An apparatus for detecting media flaws includes an envelope based media defect detector operable to identify a media defect based on an envelope of an input signal, a periodic pattern detector operable to determine whether the input signal comprises a data pattern, and a media flaw signal generation circuit operable to indicate a media defect when the envelope based media defect detector identifies the media defect and the periodic pattern detector determines that the input signal does not comprise the data pattern.

Abstract translation: 用于检测介质缺陷的装置包括：基于包络的介质缺陷检测器，其可操作以基于输入信号的包络来识别介质缺陷;周期性图案检测器，可操作以确定输入信号是否包括数据模式;以及介质缺陷信号生成 电路，其可操作以在所述基于信封的媒体缺陷检测器识别所述媒体缺陷并且所述周期性图案检测器确定所述输入信号不包括所述数据模式时指示媒体缺陷。

公开(公告)号：US20140362462A1

公开(公告)日：2014-12-11

申请号：US13941472

申请日：2013-07-13

Applicant: LSI Corporation

Inventor： Jefferson E. Singleton ,  Scott Dziak

IPC: G11B20/18

CPC classification number: G11B20/182

Abstract: An apparatus for detecting media flaws includes an envelope based media defect detector operable to identify a media defect based on an envelope of an input signal, a periodic pattern detector operable to determine whether the input signal comprises a data pattern, and a media flaw signal generation circuit operable to indicate a media defect when the envelope based media defect detector identifies the media defect and the periodic pattern detector determines that the input signal does not comprise the data pattern.

Abstract translation: 用于检测介质缺陷的装置包括：基于包络的介质缺陷检测器，其可操作以基于输入信号的包络来识别介质缺陷;周期性图案检测器，可操作以确定输入信号是否包括数据模式;以及介质缺陷信号生成 电路，其可操作以在所述基于信封的媒体缺陷检测器识别所述媒体缺陷并且所述周期性图案检测器确定所述输入信号不包括所述数据模式时指示媒体缺陷。