Abstract: A library of L unenhanced images (pixel bit maps) is enhanced for optical character recognition (OCR) with respect to a pre-existing group of G input symbols (pixel bit maps) for creating a library of G recognition enhanced templates (pixel bit maps) of the G input symbols. The enhancement is accomplished by comparing each image of the library with each symbol of the group, and weighting the images with the highest potential for confusion. A primary comparison C* and a secondary comparison C** are identified from the L comparisons within each of the G sets of comparisons. A recognition margin is determined between each pair of identified comparisons C* and C**. The single pair of identified comparisons C* and C** is selected forming the smallest recognition margin M*. The single pair of images I.sub.j * and I.sub.j ** underlying the pair of identified comparisons C* and C** is identified. Certain pixels of the closest pixel image I.sub.j * and the next closest pixel image I.sub.

Abstract: Record document may be authenticated against reference grain data obtained from the document at a prior time. The body of the document is formed by base medium bearing the record entries such as text within record site. Grain seal site is located at a predetermined location within the base medium. The unique grain structure within the seal site are microscopic and function as a seal for authenticating the document. The seal site is initially scanned to provide a stream of reference data generated by the surface reflection of the grain structure. This reference grain data is stored in memory for future authentication use. The seal site is then currently scanned to generate a stream of current grain data for comparison to the reference grain data.

Abstract: A document transport apparatus (100) that may be attached to or integrated with a system (200) for performing a plurality of functions on a single sheet of paper. The apparatus (100) includes one or more elongate tray elements (102), having an end stop element (110) to stop the movement of the sheet of paper as it is delivered to the tray element (102). A rotation element (104), such as a roll bar, is attached to the tray element (102) and proximate to the receiving end (101) of the tray element (102). The rotation element (104) may selectively be activated by a motor (112) attached to the rotation element (104), to rotate the tray element (102) from a first position for receiving a sheet of paper from an output port (206) of one device, to a second position for delivering that same sheet of paper to the input port (208) of another device.

Abstract: A symbol analyzing system processes spectral power data of an input test symbol for deriving line width and line count information about the symbol, and for generating a reliability confidence for each line count. An excellent controller progressively reduces the spectral power by progressively excluding a larger portion of the upper frequency end of the power spectrum. The excluded power levels are compared to a set of predetermined reference power levels from an ideal reference symbol. Each excluded power level that compares with a reference level is matched with reference coefficients Kw and Kc for that reference level. Each matched excluded power level has a remaining non-excluded power level Pbw in the non-excluded bandwidth BW at the lower end of the frequency spectrum. These included power levels and bandwidths are matched with the reference coefficients.