Patent ID: 8135957

Claim:
A control system for controlling access to an application system, comprising: a presentation device for presenting stimulatory information to a user, wherein the stimulatory information is presented exclusively to the user who is to be authorized for an application system, and wherein no user information is assigned to the stimulatory information; an acquisition device for acquiring current data comprising electrically measurable data as a result of a biometric reaction comprising a brain pattern of the user presented with the stimulatory information; a storage device that assigns a unique authorization to the stimulatory information; a comparison device that compares the acquired current data to provide a comparison result, wherein from a mental reaction of the user it is determined whether the user has recognized the stimulatory information, wherein the biometric reaction of the user is triggered by a recollection of the presented stimulatory information, and wherein, if the stimulatory information is known to the user, the user is directly authorized for the application system.