A mobile radio terminal comprises a key which has a fingerprint detecting function and operates to input an instruction in correspondence with a pushing position, a memory for registering a fingerprint detected by the key, a fingerprint collating portion for collating the fingerprint registered in the...http://www.google.com.au/patents/US7079833?utm_source=gb-gplus-sharePatent US7079833 - Mobile radio terminal and network commerce system using the same
