Apparatus for reproducing magnetically recorded signals with amplitude correction
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United States of America Patent
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Dec 8, 1992
Grant Date -
N/A
app pub date -
Nov 29, 1989
filing date -
Nov 30, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Data signals recorded in oblique tracks on a magnetic tape, after they are picked up, preamplified and prefiltered, are rectified and converted to digital values representative of amplitude in respective segments distributed over track lengths. For each segment position in a track, the values are averaged and inverted by a ROM and stored in a RAM at track segment addresses. The values thus stored are converted into analog form and then used as multipliers in a multiplication stage following the preamplification and prefiltering. The output of the multiplier can readily be shaped into unambiguous data signals for further processing.
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