Invention Grant
- Patent Title: Phase locked anti- notch filter in a servo control loop
- Patent Title (中): 伺服控制回路中的锁相防陷波滤波器
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Application No.: US12040018Application Date: 2008-02-29
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Publication No.: US07719787B2Publication Date: 2010-05-18
- Inventor: Brent Jay Harmer
- Applicant: Brent Jay Harmer
- Applicant Address: US CA Scotts Valley
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Scotts Valley
- Agent David K. Lucente
- Main IPC: G11B5/596
- IPC: G11B5/596 ; G11B21/02
Abstract:
An anti-notch filter in a servo control loop is phase locked to a nonrepeatable runout component of a servo control loop signal. The phase locked anti-notch filter may thereby more effectively track time varying characteristics of the nonrepeatable runout component so that they can be at least partially reduced in the servo control loop signal.
Public/Granted literature
- US20090219641A1 PHASE LOCKED NOTCH FILTER IN A SERVO CONTROL LOOP Public/Granted day:2009-09-03
Information query
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