发明名称 |
Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data |
摘要 |
A magnetic recording and/or reproducing apparatus performing efficient decoding to lower a decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes a modulation SISO decoder 63 for modulation decoding data modulation-encoded in a predetermined fashion by a modulation coder 52. In the magnetic recording and/or reproducing apparatus 50, the modulation SISO decoder 63 is a soft input soft output (SISO) type modulation decoder fed with a soft input signal and issuing a soft output signal. The modulation SISO decoder 63 is fed with a trellis soft output signal D64 supplied from a trellis SISO decoder 62 to find a soft decision value for an error correction coding data D52 fed to the modulation coder 52 of the recording system to generate a modulated soft decision signal D65. The modulation SISO decoder 63 routes the so-generated modulated soft decision signal D65 to a downstream side error correction soft decoder 64.
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申请公布号 |
US6744580(B2) |
申请公布日期 |
2004.06.01 |
申请号 |
US20010814429 |
申请日期 |
2001.03.21 |
申请人 |
SONY CORPORATION |
发明人 |
HATTORI MASAYUKI;MIYAUCHI TOSHIYUKI;MURAYAMA JUN |
分类号 |
G11B20/14;G11B20/10;G11B20/18;H03M7/14;H03M13/29;H03M13/39;H03M13/41;H03M13/45;(IPC1-7):G11B5/09 |
主分类号 |
G11B20/14 |
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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