| 发明名称 |
RECORDING AND REPRODUCING APPARATUS |
| 摘要 |
According to one embodiment, a recording and reproducing apparatus includes a first masking unit configured to apply first bit masking to error correction code (ECC) encoded data using a bit sequence for masking, to generate a masked bit sequence to be recorded on a medium, and a de-masking unit configured to apply de-masking, using the bit sequence for masking, to a sequence of decision values based on a signal read from the medium to generate a sequence of de-masked decision values to be ECC decoded. The bit sequence for masking comprises an iteration of a fixed bit sequence of N (>1) bits. The bit de-masking is an inverse process corresponding to the first bit masking. |
| 申请公布号 |
US2015046764(A1) |
申请公布日期 |
2015.02.12 |
| 申请号 |
US201314142096 |
申请日期 |
2013.12.27 |
| 申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
HARADA Kohsuke;Yamazaki Akihiro;Kondo Yosuke;Yoshida Kenji;Ichihara Kazuhito;Kashiwagi Kazuto |
| 分类号 |
G06F11/07 |
主分类号 |
G06F11/07 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A recording and reproducing apparatus comprising:
a first masking unit configured to apply first bit masking to error correction code (ECC) encoded data using a bit sequence for masking, to generate a masked bit sequence to be recorded on a medium; and a de-masking unit configured to apply de-masking, using the bit sequence for masking, to a sequence of decision values based on a signal read from the medium to generate a sequence of de-masked decision values to be ECC decoded, wherein the bit sequence for masking comprises an iteration of a fixed bit sequence of N (>1) bits, and the bit de-masking is an inverse process corresponding to the first bit masking. |
| 地址 |
Minato-ku JP |
