Patent ID: 8199160

Claim:
A method for monitoring a user's activities on an electronic device comprising a hardware level, an operating system level and an application level, the activities comprising an output of content loaded from a content source by an application in the application level, which finally outputs the content to a human readable device via a graphics device having a monitoring unit and a frame buffer and a graphics processor arranged within the hardware level, wherein the frame buffer holds digital image data representing the content to be output and is the last instance in which the content to be output is digitally available, wherein the digital image data in the frame buffer is periodically read by the graphics processor and output to the human readable device, the method comprising the steps of: retrieving the image data from the frame buffer; examining the image data by performing a content-based classification of the image data; identifying an offensive attribute within the image data, wherein the identifying is performed based on the examining of the image data and independently from the content source of the image data; and reacting to the attribute in a predefined way by modifying parts of or the whole of the frame buffer, wherein the steps are performed by the monitoring unit.