A method of communicating data between an external device and an implantable medical device wherein a first pulse is transmitted as electromagnetic energy from one device to the other, is received and stored as electrostatic energy in the second device and, after a delay period representing data to be...http://www.google.com.au/patents/US5480415?utm_source=gb-gplus-sharePatent US5480415 - Apparatus for high speed data communication between an external medical device and an implantable medical device
