Each device of a family of removable digital media devices (310, 320, 330, 340, 350 and 360) may be plugged into a host to permits the host to store data in it or to retrieve data from it. The form factors of the digital media devices in the family and the connector system used by the digital media devices...http://www.google.de/patents/US5877975?utm_source=gb-gplus-sharePatent US5877975 - Insertable/removable digital memory apparatus and methods of operation thereof
