发明名称 |
RLL ENCODING FOR LTO-5 TAPE |
摘要 |
Method and apparatus are provided for encoding and decoding rate-(s(K+1)/s(K+1)+1) TCMTR(j,k,t,a) codes, where s is the ECC symbol size in bits and K is the number of unencoded symbols that are interleaved with an (s+1)-bit encoded block at the output of a rate-s/(s+1) encoder that encodes the r-th s-bit symbol. K=m/s-1 where m=s(K+1) is the total number of bits to be encoded. Error propagation is reduced, thus allowing the ECC code to correct errors efficiently. Header error-rate is also reduced by eliminating occurrence of likely error events at the detector output. Although initially an RLL code may be designed for an ECC symbol size of s bits, the RLL encoding of the present invention may be used in conjunction with ECC schemes that utilize symbol sizes other than s bits. |
申请公布号 |
EP2168244(A1) |
申请公布日期 |
2010.03.31 |
申请号 |
EP20080785934 |
申请日期 |
2008.07.04 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CIDECIYAN, ROY, DARON;SEGER, PAUL;TANAKA, KEISUKE |
分类号 |
H03M5/14 |
主分类号 |
H03M5/14 |
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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