A method and system for displaying location data and supplemental information associated with a remote mobile device uses, e. The method includes detecting first and second data transitions of a received data stream. The color-difference-accuracy calculating unit calculates, as a color-difference accuracy, a color difference between a measured color value, which corresponds to a target color, and a predicted value, which is predicted from the target color using a color conversion model generated from the patch set and measured color values corresponding to the patch colors. The input logic includes flow control logic, a memory, and a dispatch unit.