Abstract: A merchant listing verification system to scan a publisher system of a set of publisher systems to identify a published merchant listing published by the publisher system, where the published merchant listing includes a first set of data fields and a first set of data field values associated with a merchant system. The merchant listing verification system compares, on a field-by-field basis, the published merchant system to a target merchant listing comprising a second set of data fields and a second set of data field values associated with the merchant system. Based on the comparing, a discrepancy between a first data value of a first data field of the first set of data fields of the published merchant listing and a second data value of a second data field of the second set of data fields of the target merchant listing is identified.

Abstract: A method and an apparatus for shifting a resonance frequency in response to an operating frequency are provided. The present invention retrieves a control signal, from a frequency synthesizer, indicative of a difference between the operating frequency and a predetermined frequency, decodes the control signal to generate a tuning signal by looking up a mapping table, and tunes the resonance frequency in response to the tuning signal.