发明名称 |
Ternary code magnetic recording system |
摘要 |
A digital magnetic recording system comprises an input for a binary-encoded data signal comprising two symbols. The binary signal is converted, using a binary-to-ternary convolutional encoder, to a ternary signal comprising three symbols. The ternary signal is recorded onto a magnetic medium wherein two symbols are recorded using conventional saturation recording and a third symbol is recorded using a nonoriented state. The nonoriented state results from the application to the medium of a high-frequency oscillating magnetic flux. The recorded signal is subsequently reproduced and equalized. A Viterbi algorithm is used to convert the equalized signal back to the original binary signal which is then output from the system.
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申请公布号 |
US5621580(A) |
申请公布日期 |
1997.04.15 |
申请号 |
US19940296512 |
申请日期 |
1994.08.26 |
申请人 |
CRUZ, JOAO R.;KRUEGER, DANIEL J. |
发明人 |
CRUZ, JOAO R.;KRUEGER, DANIEL J. |
分类号 |
G11B5/09;G11B20/10;G11B20/14;(IPC1-7):G11B5/09 |
主分类号 |
G11B5/09 |
代理机构 |
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代理人 |
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地址 |
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