Patent Document ID: 20160180140
Application ID: 15056785
Patent Status: 0

Claim One:
1. A method for operating a biometric sensing device that includes a plurality of sensing elements, wherein the biometric sensing device is operatively connected to a processing channel that includes at least one variable gain amplifier and at least one variable offset circuit operatively connected to an input of an analog to digital converter, the method comprising: processing a section of a biometric image using a particular gain for each variable gain amplifier and a particular offset value for each variable offset circuit; converting the section of the biometric image to digital values; transmitting the digitized section of the biometric image and at least one particular gain and at least one particular offset value to a processing device; reconstructing voltage levels on respective sensing elements in the biometric sensing device that are associated with the digitized section of the biometric image based on the at least one particular gain and the at least one particular offset value; and combining the reconstructed voltage levels to produce a reconstructed section of the biometric image.