Decoder for magnetic stripe recording
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 20, 1993
Grant Date -
N/A
app pub date -
Oct 2, 1990
filing date -
Oct 2, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic stripe decoder includes an amplitude discrimination circuit to remove noise due to glitches. The use of amplitude discrimination rather than a filter, which is in common use today, permits a single decoder circuit to decode data over a wide range of frequencies including the standards 75 BPI and 210 BPI. In the absence of such an amplitude discriminator, two different decoders, one for 75 BPI and one for 210 BPI are necessary.
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Cited Art Landscape
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