Focus Bracketing

Following on from the Refocus thread, I've just remembered that there was a thread somewhere a while back that suggested Pentax had filed a Patent for an anti-shake mechanism that also moved the sensor backwards and forwards??? Perhaps this is part of a focus bracketing mechanism?

If this were true and the technology worked well it could put Pentax in a very strong position if the patent holds up. Keep the technology for themselves or licence it to the others for $millions!

Just some wishful thinking ............