A flexible magnetic disk drive is disclosed which has a disk drive motor for imparting rotation to the magnetic disk under the control of a "motor on" signal, and a stepping motor capable of stepwise rotation in response to stepping pulses for transporting a transducer head or heads radially of the magnetic...http://www.google.fr/patents/US4688112?utm_source=gb-gplus-shareBrevet US4688112 - Power-saving data transfer apparatus with a flexible magnetic disk or the like
Power-saving data transfer apparatus with a flexible magnetic disk or the like
