Abstract: A system shields IR emissions from remote sensors and has a flexible outer metallic layer extending to cover objects emitting IR energy on the covered ground. The outer layer is conductive of heat energy and faces upward. A flexible inner metallic layer coextensively extends adjacent to the outer metallic layer. The inner layer is conductive of heat energy and faces downward. Spaced-apart thermo electric chips are between and in contact with the outer and inner layers. The chips transfer heat energy between the outer and inner layers. A sensor of IR radiation on ambient ground provides signals representative of the thermal signature of the ambient ground. A controller couples signals to the chips in response to the representative ambient ground thermal signals for controlling the heat energy radiated from the outer layer to match the radiated IR signature from the outer layer to the IR signature of the ambient ground.

Abstract: A system for storing geospecific data for use by an interactive computing environment utilizes separate terrain height data storage and image data storage. The terrain height data storage stores blocks of terrain height data which are defined as discrete terrain heights coinciding with a grid of discrete points at the surface of a planetary body. Terrain heights for each block are stored in a row major order starting with one discrete point of a grid associated therewith being referenced to a latitude and longitude. In a similar fashion, the image data storage stores blocks of image data defined as discrete image intensities coinciding with a grid of discrete points at the surface of the planetary body. Image intensities for each block are stored in a row major order starting with one discrete point of a grid associated therewith being referenced to a latitude and longitude.