Patent ID: 7882541
Filing Date: 2011-02-01
Classification: G06F

Abstract:
1. An authentication system which manages presence of a user, the authentication system comprising: a mobile information processing device including; the authentication system further comprising: an information processing terminal including; a second display unit which indicates representation of failure of authentication when the received authentication information is verified as incorrect, and a second communication unit which is capable of wirelessly communicating with the mobile information processing device, in the first wireless communication mode for two-way communication or in the second wireless communication mode for near field communication, wherein, the second communication unit of the first wireless communication mode establishes, in response to a request for two-way communication transmitted by the mobile information processing device, a two-way wireless communication path to the mobile information processing device, wherein the second communication unit receives, in the first wireless communication mode, the authentication information from the mobile information processing device, wherein, the second communication unit changes, when the received authentication information is verified as correct, from the first wireless communication mode into the second wireless communication mode, and iteratively performs polling of the mobile information processing device to receive a reply from the mobile information processing device, and wherein, the second communication unit determines, when no correct shared identification has been received from the mobile information processing device in the second wireless communication mode, whether a number of successive errors transcends a threshold number or whether a time length of successive errors transcends a threshold time length, and locks a display screen of the second display unit when the threshold number or the threshold time length is transcended.