Patent ID: 8619033

Claim:
A method of selecting a depth of view in an optical sensor of a pointing device, said pointing device generally operating in physical contact with a work surface, comprising: providing a plurality of predetermined depth of view settings for the optical sensor; receiving a depth of view setting for the optical sensor, the depth of view setting being one of a first depth of view setting and a second depth of view setting; selecting one of the plurality of predetermined depth of view settings to he a selected depth of view setting, the selected depth of view setting corresponding to the received depth of view setting; loading the optical sensor with a single firmware version from at least one firmware version in the optical sensor, the single firmware version corresponding to the selected depth of view setting; and changing the depth of view of the optical sensor to the selected depth of view setting, wherein the depth of view setting is defined by different levels of image contrast in the micro-texture of the work surface; wherein the first depth of view setting corresponds to a level of image contrast recorded in the optical sensor; wherein the second depth of view setting is chosen by a user from the plurality of predetermined depth of view settings; and wherein each of the at least one firmware version corresponds to one of the plurality of predetermined depth of view settings.