发明名称 |
FOERFARANDE FOER KODNING AV EN SEKVENS AV BINAERA DATABITAR TILL EN SEKVENS AV BINAERA KANALBITAR. |
摘要 |
In a run length limited block coding method in which blocks of m data bits are converted to blocks of n1 information and n2 separation bits (n = n1 + n2>m). The blocks of bits satisfying the requirement of being (d, k) run length limited, the blocks of separation bits BSi between each of the blocks of n-information bits Bli are chosen, in those cases where the format is not prescribed by the (d, k)-constraint, such that the low-frequency spectrum and particularly the direct current unbalance is as low as possible. The direct current unbalance may be minimized within each block independently or cumulatively over a series of blocks. A demodulator for decoding data encoded as above is described. <IMAGE> |
申请公布号 |
FI74565(B) |
申请公布日期 |
1987.10.30 |
申请号 |
FI19810002189 |
申请日期 |
1981.07.10 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
IMMINK, KORNELIS ANTONIE;NIJBOER, JAKOB GERRIT;OGAWA, HIROSHI;ODAKA, KENTARO |
分类号 |
H03M7/14;G11B5/09;G11B7/00;G11B20/14;H03M5/04;H03M7/00;H03M13/00;H03M13/51;H04L25/00;H04L25/49 |
主分类号 |
H03M7/14 |
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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