System and method of signal processing for use in reading data

Details System and method of signal processing for use in reading data System and method of signal processing for use in reading data

2005-10-18

2005-10-18

Werner, Brian (Department: 2621)

Image analysis

Applications

Reading bank checks

C382S278000, C382S265000, C382S182000, C382S207000

Reexamination Certificate

active

06956962

ABSTRACT:
A method of signal processing for use in reading data includes determining first and second waveforms, determining a cross-correlation of the first waveform with the second waveform, and determining a specific time delay corresponding to a maximum peak in the cross-correlation function. A filter is then applied based on the specific time value. The filter combines the first waveform and the second waveform so as to generate a filter output waveform including coherent information representing the data and including reduced incoherent noise.

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