Invention Grant
- Patent Title: Variable stopwrite threshold using kurtosis
- Patent Title (中): 使用峰度的可变阻止写入阈值
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Application No.: US14068304Application Date: 2013-10-31
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Publication No.: US08804257B2Publication Date: 2014-08-12
- Inventor: Randy C. Inch , Kevin B. Judd
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Zilka-Kotab, PC
- Main IPC: G11B27/36
- IPC: G11B27/36 ; G11B21/02
Abstract:
A method according to one embodiment includes measuring a current position error signal; calculating a standard deviation or a variance using the current position error signal sample; calculating a kurtosis value, using the current position error signal sample or derivative thereof; adjusting a threshold value using the kurtosis value; comparing the standard deviation or variance to the threshold value; enabling writing when the standard deviation or variance does not exceed the threshold value.
Public/Granted literature
- US20140063633A1 VARIABLE STOPWRITE THRESHOLD USING KURTOSIS Public/Granted day:2014-03-06
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