Invention Grant
- Patent Title: Implementing enhanced track following during read back using head asymmetry metrics in hard disk drives
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Application No.: US14988651Application Date: 2016-01-05
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Publication No.: US10008229B2Publication Date: 2018-06-26
- Inventor: Richard Leo Galbraith , Weldon Mark Hanson , Mark A. Nichols , Alexander Taratorin , Roger William Wood
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Agent Steven Versteeg
- Main IPC: G11B5/596
- IPC: G11B5/596
Abstract:
A method, apparatus, and system are provided for implementing track following using signal asymmetry metrics monitored during read back in hard disk drives (HDDs). Signal asymmetry metrics monitored during read back are used together with a position error signal (PES) to correct and guide the position of a read sensor with respect to a written track in the HDD.
Public/Granted literature
- US20170194024A1 IMPLEMENTING ENHANCED TRACK FOLLOWING DURING READ BACK USING HEAD ASYMMETRY METRICS IN HARD DISK DRIVES Public/Granted day:2017-07-06
Information query
IPC分类:
