Patent ID: 7131132
Filing Date: 2006-10-31
Classification: G06F,G07C,H04H,H04N

Abstract:
1. A method for automatically limiting access to a device to authorized users, the method comprising: obtaining visual data related to the appearance of the users of the device; automatically processing the visual data to determine when any authorized users of a first authorization level are present; automatically processing the visual data to determine when any authorized users of a second authorization level are present; allowing initial access to the device at a first authorization level when only authorized users of a first authorization level are present; automatically allowing initial access to the device at a second authorization level when any authorized users of a second authorization level are present; allowing continued access at a first authorization level when only authorized users of a first authorization level continue be present; automatically changing access from a first authorization level to a second authorization level when, at some time subsequent to initial access at a first authorization level being allowed, all authorized users at a first authorization level cease to be present, and any authorized users at a second authorization level are present; automatically allowing continued access at a second authorization level when any authorized users of a second authorization level continue be present; and terminating access to the device automatically when all authorized users cease to be present.