A stepping motor driving system includes: a stepping motor that rotates at a predetermined angle according to a driving pulse signal, a vibration detector that detects vibration to output a vibration signal, and a stepping motor control unit that controls the driving pulse signal, which is applied to...http://www.google.co.uk/patents/US7026781?utm_source=gb-gplus-sharePatent US7026781 - Stepping motor driving system, information recording and reproducing device, and stepping motor driving method
