发明名称 |
Methods for reading data from a storage medium using a reader and storage devices |
摘要 |
According to various embodiments, a method for reading data from a storage medium using a reader, wherein the reader includes at least one reader head, may be provided, wherein the storage medium includes a plurality of tracks. The method may include: reading a first signal with a reader head of the reader at a pre-determined position of the storage medium; reading a second signal with a reader head of the reader at the pre-determined position of the storage medium; and determining data stored at the pre-determined position of the storage medium based on the first signal and based on the second signal. |
申请公布号 |
US9269394(B2) |
申请公布日期 |
2016.02.23 |
申请号 |
US201313946621 |
申请日期 |
2013.07.19 |
申请人 |
Marvell International LTD. |
发明人 |
Ong Chun Lian;Yuan Zhimin;Ang Shiming |
分类号 |
G11B20/24;G11B20/10;G11B20/12 |
主分类号 |
G11B20/24 |
代理机构 |
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代理人 |
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主权项 |
1. A method for reading data from a storage medium using a reader, wherein the reader comprises at least one reader head, the method comprising:
reading a first signal with a reader head of the reader at a pre-determined position of the storage medium, wherein the storage medium comprises a plurality of tracks written using shingled magnetic recording; reading a second signal with a reader head of the reader at the pre-determined position of the storage medium; determining a trigger signal directly from a readback signal from the storage medium, wherein the trigger signal is a pre-written low-frequency signal at a beginning of a data track, which includes the pre-determined position; and determining a mechanical jitter free signal based on the trigger signal; and determining data stored at the pre-determined position of the storage medium based on (i) an average of the first signal and the second signal, (ii) and the mechanical jitter free signal. |
地址 |
Hamilton BM |