AUTHENTICATION SYSTEM, CONTROL DEVICE, MOBILE DEVICE, AND COMPUTER PROGRAM
COMMUNICATION FRAUD PREVENTION SYSTEM AND COMMUNICATION FRAUD PREVENTION METHOD
COMMUNICATION UNAUTHORISED ESTABLISHMENT PREVENTION SYSTEM
CONTROL SYSTEM, CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM
DOOR ACTUATION CONTROL DEVICE AND DOOR ACTUATION CONTROL METHOD
LOCKING/UNLOCKING SYSTEM, LOCKING/UNLOCKING DEVICE, AND KEY CYLINDER DEVICE
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION METHOD
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION METHOD
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION SYSTEM CONTROL METHOD
UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM