MOBILE FIELD COMMUNICATION APPARATUS, FIELD COMMUNICATION SECURITY SYSTEM, FIELD COMMUNICATION METHOD AND FIELD COMMUNICATION SECURITY METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a mobile field communication apparatus having robust security, field communication security system, field communication method and field communication security method. PSOLUTION: While prestoring authentication information into an authentication information memory 11, operational change of the mobile field communication apparatus 100 is detected as input information. When the mobile field communication apparatus 100 is in a standby state, it is determined whether the detected input information is matched to the authentication information in the authentication information memory 11. When the input information is matched to the authentication information, the mobile field communication apparatus 100 is changed from the standby state to an execution enabled state. PCOPYRIGHT: (C)2010,JPO&INPIT