Systems and methods for communicating using various protocols through the Secured Digital (SD) physical interface are disclosed. The invention covers, among others, single-mode and multi-mode hosts, single-mode and multi-mode devices, as well as techniques for initializing these hosts and devices in...http://www.google.de/patents/US20100312933?utm_source=gb-gplus-sharePatent US20100312933 - Extended Secure-Digital (SD) Devices And Hosts