Invention Grant
- Patent Title: Zero phase start estimation in readback signals
- Patent Title (中): 回读信号中的零相位起始估计
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Application No.: US14197748Application Date: 2014-03-05
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Publication No.: US09123383B1Publication Date: 2015-09-01
- Inventor: Xuebin Wu , Shaohua Yang , Zhi Bin Li , Haitao Xia
- Applicant: LSI Corporation
- Applicant Address: SG Singapore
- Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Suiter Swantz pc llo
- Main IPC: G11B20/20
- IPC: G11B20/20 ; G11B20/10 ; G11B5/09
Abstract:
A data storage system identifies analog-to-digital conversion samples with amplitude below a certain threshold. Remaining samples are grouped according to phase into one or more quadrants. A multi-coordinate with overlapping quadrants is used to further differentiate sample points. The system then computes an average phase for zero phase start estimation.
Public/Granted literature
- US20150228302A1 Zero Phase Start Estimation in Readback Signals Public/Granted day:2015-08-13
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