Mobile information device, control method, and program

A control method for controlling a mobile information device that includes:

• a housing;
• a plurality of keys disposed on one surface of the housing;
• a control unit configured to execute processing in response to a touch operation performed on at least one of the keys;
• and
• N proximity sensors (N≧2) disposed on the surface of the housing, and each configured to detect a proximity state of a sensing target,
• the control method comprising:
• a first step of judging whether the proximity state is detected by at least two predetermined proximity sensors among the N proximity sensors;
• and
• a second step of blocking execution of the processing in response to the touch operation performed on the at least one of the keys, when judged in the first step that the at least two predetermined proximity sensors detect the proximity state.

A computer program for executing control processing that controls a mobile information device that includes:

• a housing;
• a plurality of keys disposed on one surface of the housing;
• a control unit configured to execute processing in response to a touch operation performed on at least one of the keys;
• and
• N proximity sensors (N≧2) disposed on the surface of the housing, and each configured to detect a proximity state of a sensing target,
• the control processing comprising:
• a first step of judging whether the proximity state is detected by at least two predetermined proximity sensors among the N proximity sensors;
• and
• a second step of blocking execution of the processing in response to the touch operation performed on the at least one of the keys, when judged in the first step that the at least two predetermined proximity sensors detect the proximity state.