发明授权
- 专利标题: Servomechanism with adjustable predictor filter
- 专利标题(中): 具有可调节预测滤波器的伺服机构
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申请号: US13332996申请日: 2011-12-21
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公开(公告)号: US08274752B2公开(公告)日: 2012-09-25
- 发明人: Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
- 申请人: Giovanni Cherubini , Jens Jelitto , Kazuhiro Tsuruta
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Van N. Nguy
- 主分类号: G11B5/584
- IPC分类号: G11B5/584 ; G11B15/46
摘要:
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.
公开/授权文献
- US20120147496A1 SERVOMECHANISM WITH ADJUSTABLE PREDICTOR FILTER 公开/授权日:2012-06-14
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