发明名称 |
Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores |
摘要 |
A disk type recording and reproducing apparatus includes a disk type recording medium having a plurality of tracks and having stored on each of the plurality of tracks a position signal indicating positions on the tracks; a drive section for rotating the disk type recording medium; a dual head separately incorporating a reading head for reading from the disk type recording medium and a writing head for writing into the disk type recording medium; a head drive section for moving the dual head; means for controlling the head drive section by a controlled variable in compliance with a position signal read from the disk type recording medium using an object track and the reading head; and memory means for storing quantity information used to correct the controlled variable of the means for controlling the head drive section. The means for controlling the head drive section, at least in a writing operation, obtains the controlled variable of the head drive section according to the position signal read from the disk type recording medium using the object track and the reading head and the quantity information stored in the memory means.
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申请公布号 |
US6236528(B1) |
申请公布日期 |
2001.05.22 |
申请号 |
US20000641772 |
申请日期 |
2000.08.21 |
申请人 |
HITACHI, LTD. |
发明人 |
KATAYAMA YUKARI;OGAWA HITOSHI;TSUNODA MOTOYASU;HIROSE TSUNEO;KOJIMA AKIRA;SAIKI EISAKU;KANEDA YASUNORI;TSUNETA KATSUHIRO;MIYAZAWA SHOICHI;TAKASHI TERUMI |
分类号 |
G11B5/012;G11B5/09;G11B5/48;G11B19/04;G11B20/12;G11B20/18;G11B27/30;(IPC1-7):G11B5/596 |
主分类号 |
G11B5/012 |
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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