| 摘要 |
PROBLEM TO BE SOLVED: To keep security capability, and to prevent use of an apparatus from being prohibited by user unwillingness by a certain user. SOLUTION: During use of equipment by a user having qualifications to use the equipment, an image of the user is continuously photographed by a video camera. When the face of the user can no longer be detected from the image acquired by the camera, warning is issued through voice and screen display and the photographing of the image and the detection of the face are continued. When the face of the user cannot be detected within 10 sec, a computer is locked. COPYRIGHT: (C)2006,JPO&NCIPI |
