Patent ID: 7614086

Claim:
Apparatus for monitoring a representation of an object, said monitoring apparatus comprising: means for converting said representation into a first data string, the first data string containing pixel image data for an entire image of the object; processor means, responsive to the first data string, which generates first and second output strings from which said first data string can be reconstructed such that both said first and second output strings are responsive to data for the entire image and are required to reconstruct the first data string and obtain the representation therefrom; and means for storing said first and second output strings in separate storage locations, each of said storage locations having differing access rights associated therewith each of first and second parties being granted a corresponding right, consistent with the access rights, to respectively access just the first and second memory locations such that neither one of the first and second parties is able to access both of the memory locations and retrieve both of the first and second output strings and reconstruct the first data string; and wherein the processor means, in response to each of the first and second parties individually and respectively accessing the first and second memory locations and collectively retrieving both the first and second output strings there from so as to define first and second accessed output strings, reconstructs the first data string from both the first and second accessed output strings so as to define a reconstructed first data string and generates the representation from the reconstructed first data string.