Invention Grant
- Patent Title: Servomechanism with adjustable predictor filter
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Application No.: US12543339Application Date: 2009-08-18
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Publication No.: US08094407B2Publication Date: 2012-01-10
- Inventor: Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
- Applicant: Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Van N. Nguy
- Main IPC: G11B5/584
- IPC: G11B5/584 ; G11B15/46

Abstract:
A digital control system, and in particular a tape drive system having a track-following servomechanism with a predictor (also referred to herein as a predictor filter), is described. In certain embodiments, the servomechanism includes an actuator, a servo channel, and a predictor coupled to the servo channel. The predictor receives from the servo channel a lateral position estimate signal and determines a modified lateral position estimate signal that reduces a difference, introduced by a tape velocity-dependent delay, e.g., introduced by the servo channel, between the modified lateral position estimate signal and an actual lateral position. The modified lateral position estimate may be used to modify a control signal sent to the actuator.
Public/Granted literature
- US20110043945A1 SERVOMECHANISM WITH ADJUSTABLE PREDICTOR FILTER Public/Granted day:2011-02-24
Information query
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