| 摘要 |
<p>In the present invention asymmetric run length constraints with different minimum run lengths for first and second patterns representing binary data are introduced, like dm=0 for the first pattenr, i.e. shortest sequence of first patterns is equal to the bit period, and ds>0 for the second pattern, i.e. shortest sequence of second patterns is equal to d+1 bit periods. Thereby, the small 'cost' of a reduced code rate will be more than compensated by a large increase in power margin.</p> |
