Title:
【発明の名称】24ビットシーケンスデータの符号化および復号技術
Document Type and Number:
Japanese Patent JP3415121
Kind Code:
B2
Abstract:
Encoding and decoding systems and methods for digital data in 24 bit sequences. An encoder generates state variables as a function of four or fewer bits of the 24 bit sequence, and encodes the sequence into 11 and 14 bit codewords. After transmission, the 11 bit and 14 bit codewords are decoded using recovered state variables. The encoding places a run length limit (RLL) of k=7 on a 25 bit codeword comprised of the 11 and 14 bit codewords to limit runs of zeros. Each of the 11 bit and 14 bit codewords are preferably also encoded with a run length limit of interleaved bits is i=7.The encoding and decoding systems and methods can be applied to a magnetic disc drive.
Inventors:
Tosan, Kinhin, Pee
Love, Bernardo
Love, Bernardo
Application Number:
JP2000570905A
Publication Date:
June 09, 2003
Filing Date:
September 13, 1999
Export Citation:
Assignee:
Seagate Technology LLC
International Classes:
G11B20/14; H03M5/14; H03M7/14; H03M7/20; H03M7/46; H04L25/49; (IPC1-7): H03M7/14; G11B20/14
Domestic Patent References:
| JP9167969A |
Other References:
【文献】米国特許5142421(US,A)
【文献】国際公開98/29872(WO,A1)
【文献】国際公開98/44636(WO,A1)
【文献】国際公開98/44633(WO,A1)
【文献】国際公開98/29872(WO,A1)
【文献】国際公開98/44636(WO,A1)
【文献】国際公開98/44633(WO,A1)
Attorney, Agent or Firm:
Akira Asamura (3 outside)
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