Method of adjusting head skew of magnetic recording heads
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United States of America Patent
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Apr 11, 1995
Grant Date -
N/A
app pub date -
Oct 21, 1993
filing date -
Oct 21, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of adjusting alignment of a magnetic head to be within an alignment specification in accordance with the invention includes recording on magnetic material of a test card a digital code having a greater number of bits per unit length than the set number of bits used for conventional magnetic recording of credit cards. The test card produces an electrical playback signal which varies in magnitude with head alignment at a second rate greater than a first rate produced during conventional recording. The test card is read repeatedly and alignment of the head is adjusted until a maximum electrical playback signal is produced indicating that the head is set within the alignment specification.
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