发明名称 |
Magnetic data card servo writer |
摘要 |
This invention discloses a magnetic servo writer. The magnetic servo writer includes a magnetic pickup head for rotationally moving over and writing servo data in a magnetic flat data-storage medium. The magnetic servo writer further includes a clock head for providing clock signals to the pickup head and to write clock signals in the clock disk. The magnetic servo writer further includes a control circuit for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a servo pattern layout circuit for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium with predefined servo patterns. The magnetic servo writer further includes a derived index control circuit for deriving indices from a fixed index provided on the magnetic flat data-storage medium. The magnetic servo writer further includes a fixed index and clock track circuit for providing a fix index and a clock signal for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a head move circuit for controlling a movement of the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a medium movement circuit for controlling a linear movement of the magnetic flat data-storage medium for writing the servo data on the magnetic flat data-storage medium.
|
申请公布号 |
US6728059(B2) |
申请公布日期 |
2004.04.27 |
申请号 |
US20020191959 |
申请日期 |
2002.07.08 |
申请人 |
DCARD, INC. |
发明人 |
LIU JEFFREY F.;KING FRANCIS K. |
分类号 |
G11B5/52;G06K7/08;G06K19/06;G11B5/00;G11B5/008;G11B5/53;G11B5/58;G11B5/596;G11B5/80;G11B7/0033;G11B7/007;G11B7/085;G11B7/09;G11B7/12;G11B7/24;G11B7/26;G11B17/04;G11B21/02;G11B21/04;G11B21/08;G11B25/04;(IPC1-7):G11B21/02 |
主分类号 |
G11B5/52 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|