Weird problem writing 'weak flux' pattern
(02-07-2016, 09:42 AM)admin Wrote: No deliberate randomness is ever required unless the bitcells decoded perfectly for the entire track, and that just doesn't happen because the write splice is almost always a weakbit.  However, it is very easy to determine weakbits in a single revolution and just change the existing weakbit pattern on every rev into a different one if it concerns you.

There are several protections with weakbit and strongbits that do straddle the index, and those work fine under UAE, even with a single revolution.

Well it works better than I designed it then. Can't complain. Smile It still surprises me that the splice is sufficient randomness, plenty of protections look for a sync pattern and then for weakbits following that. Even if sync were lost at the splice, it would be regained at the sync pattern. Perhaps I'm tilting at windmills here.

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RE: Weird problem writing 'weak flux' pattern - by keirf - 02-07-2016, 10:12 AM

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