Wrongful authentication process is prevented. A passive entry authenticating section compares an identification signal sent from a portable unit with an identification signal previously stored in a storage section. A biometrics authenticating section compares the biometrics information of a user inputted...http://www.google.com.hk/patents/US7185198?utm_source=gb-gplus-share專利 US7185198 - Apparatus and method for authentication and method for registering a person
