MAGNETIC CARD READER

摘要

In order to analyze card data in an optimal time in accordance with the number of tracks that actually exist on a magnetic strip using a single demodulator circuit the demodulator circuit outputs: a single shared card travel signal that takes the logical sum of a card travel signal of the tracks that exist on the magnetic strip of a magnetic card from the magnetic data read by a magnetic head; a clock signal for each track that exists on the magnetic strip; and a data signal for each track that exists on the magnetic strip. A card travel signal generation circuit generates a separate card travel signal for each track that exists on the magnetic strip from the shared card travel signal and the clock signal for each track. A data analysis processor determines the existence of a track on the magnetic strip by the presence of a separate card travel signal and analyzes data signals only for the tracks determined to be on the magnetic strip.