Invention Grant
US09257140B2 Systems and methods for determining a position error of a read/write head
有权
用于确定读/写头位置误差的系统和方法
- Patent Title: Systems and methods for determining a position error of a read/write head
- Patent Title (中): 用于确定读/写头位置误差的系统和方法
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Application No.: US14747366Application Date: 2015-06-23
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Publication No.: US09257140B2Publication Date: 2016-02-09
- Inventor: Jingliang Zhang , Anmin Kong , Songhua Zhang , Zhimin Yuan , Linlin Thi
- Applicant: Marvell International Ltd.
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: G11B21/02
- IPC: G11B21/02 ; G11B5/596

Abstract:
A system for tracking a position error of a read/write head. The read/write head is configured to read data recorded to a data layer of a recording medium and read servo information recorded to a dedicated servo layer of the recording medium. To read the servo information, the read/write head is configured to read, from a first track, a first servo signal including first servo bursts of a predetermined frequency, and read, from a second track adjacent to the first track, a second servo signal including second servo bursts of the predetermined frequency. The first servo bursts are orthogonal to the second servo bursts. A position error signal determination circuit is configured to determine the position error using at least one of the first servo signal and the second servo signal.
Public/Granted literature
- US20150287429A1 SYSTEMS AND METHODS FOR DETERMINING A POSITION ERROR OF A READ/WRITE HEAD Public/Granted day:2015-10-08
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