Magnetic card reader and magnetic data reproduction method using signal peak point intervals
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United States of America Patent
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Aug 24, 2004
Grant Date -
Jun 26, 2003
app pub date -
Feb 5, 2003
filing date -
Jan 24, 2000
priority date (Note) -
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Abstract
A magnetic card reader for causing a magnetic card to make a move relative to a magnetic head and reproducing data on the magnetic card by the magnetic head, said magnetic card reader includes an amplifier for amplifying a magnetic signal provided by the magnetic head, a peak detection section for detecting a peak point of amplifier output from the amplifier output, a data reproduction section for reproducing digital data based on the interval between the peak points, an anomaly detection section for detecting an anomaly of the peak point interval and an output value storage section for converting the amplifier output from analog form into digital form every predetermined time and storing the provided data.
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