发明名称 |
Long seek control system and method in an optical storage device |
摘要 |
The long seek control system and method include a reference velocity mapping unit that obtains a reference velocity when the dual actuator is moved by the residual track count; a velocity estimator for outputting an estimated velocity and obtaining a sled control effort by subtracting the estimated velocity from the reference velocity; and an electrical damper for receiving the sled control effort and simultaneously receiving the displacement of the dual actuator to output a damping control effort to the fine actuator, and reduce the vibration of the fine actuator during the long seek operation. In the reference velocity mapping unit, a reference velocity curve is used to describe the mapping relation between the residual track count and the reference velocity. The reference velocity curve includes a linear part and several quadratic parts with different quadratic functions.
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申请公布号 |
US2002196715(A1) |
申请公布日期 |
2002.12.26 |
申请号 |
US20010988656 |
申请日期 |
2001.11.20 |
申请人 |
HUNG WEI-CHOU;DAI CHIH LONG |
发明人 |
HUNG WEI-CHOU;DAI CHIH LONG |
分类号 |
G11B21/08;G11B7/00;G11B7/085;(IPC1-7):G11B7/085 |
主分类号 |
G11B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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