Patent ID: 8848261

Claim:
A scanner device comprising: an analog front-end component configured to receive, from a scan head, analog signals carrying analog image slices and provide compressed digital signals, wherein each of the analog image slices comprises a corresponding plurality of analog pixel values that represent a slice of a target medium, and wherein the analog front-end component comprises an analog to digital converter configured to convert the analog image slices to corresponding digital image slices, a differentiator module configured to differentiate digital pixel values in each of the digital image slices, wherein the differentiator module is configured to differentiate digital pixel values in a given digital image slice based on differences between adjacent pixels in the given digital image slice, and a data compressor configured to, subsequent to the differentiator module differentiating the digital pixel values in each of the digital image slices, compress the digital image slices; and an image processing component having a data decompressor configured to (i) receive and decompress the compressed digital image slices into digital signals, and (ii) generate an image file of the target medium based at least in part on the digital signals.