Patent ID: 8487880

Claim:
A system comprising: a display; a portable placemat that is placed at a location on the display; a placemat detector that is configured to determine the location of the portable placemat on the display; a window controller that is configured to partition the display into a plurality of display areas based on the location determined by the placemat detector, the plurality of display areas including a first user area and a second user area, the first user area corresponding to the location of the portable placemat on the display determined by the placemat detector for allowing a first user of the portable placemat located at a first direction from the portable placemat to view first information displayed on the first user area and for blocking view of the first information at the second user area at directions other than the first direction from the portable placemat; and an application controller that is configured to assign the first user area to the first user and the second user area to a second user, and based on the location determined by the placemat detector to selectively route the first information intended for the first user to the first user area and second information intended for the second user to the second user area.