发明名称 |
Method and apparatus for optimizing the recording and reproducing of information from magnetic disks |
摘要 |
Increased memory capacity for a magnetic disk device is realized without degrading information error rate, by making the number of sectors at a given circumference of the disk variable in accordance with a radial direction of a disk. The number of sectors is made variable by deciding a predetermined information error rate from a ratio of reproduced signal output to noises of head, disk and amplifier at a maximum recording and reproducing frequency at a certain radial position along a disk.
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申请公布号 |
US5657176(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950471460 |
申请日期 |
1995.06.06 |
申请人 |
HITACHI, LTD.;HITACHI COMPUTER PERIPHERALS CO., LTD. |
发明人 |
MORIBE, YOSHIHIRO;KAMEOKA, TETSUJI;TSUYOSHI, TOSHIAKI;OBATA, SUMIO |
分类号 |
G11B5/00;G11B5/012;G11B5/02;G11B5/09;G11B20/10;G11B20/12;G11B20/18;G11B27/36;(IPC1-7):G11B5/09 |
主分类号 |
G11B5/00 |
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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