Patent ID: 11924196
Assignee: KONICA MINOLTA, INC.
Field: Medical technology (Instruments)
Classification: CPC G  H  A | IPC G  H

Claim 3:
4. A communication terminal comprising:
a memory in which identification information associated with a user is stored;
a controller configured to obtain a result of authentication of the user from a device that carries out user authentication;
a communication interface that transmits a signal including the identification information and transmission of the signal by the communication interface includes transmission of the signal over radio waves,
the controller is configured to:
prevent transmission of the signal by the communication interface when authentication of the user is not successful, and
does not prevent transmission of the signal by the communication interface when authentication of the user is successful; and

a blocking member configured to block transmission and reception of radio waves by the communication interface,
prevention of transmission of the signal by the communication interface includes decrease in distance between the blocking member and the communication interface to a threshold value or smaller under control by the controller, and
absence of prevention of transmission of the signal by the communication interface includes increase in distance between the blocking member and the communication interface to a distance larger than the threshold value under control by the controller.