Boots – shoes – and leggings
Patent
1996-05-13
1998-07-28
Trammell, James P.
Boots, shoes, and leggings
364481, 364486, 364550, 36455101, 36457101, 36471506, 360 46, 360 27, 360 62, 327 58, 327 62, 327 72, 324 7611, 324 7612, 324103R, G11B 509
Patent
active
057870055
ABSTRACT:
A method and apparatus for signal threshold adjustment that compensates for signal asymmetry which utilizes an algorithm to detect each side of an asymmetric signal independently to ensure that the proper signal detection point is used on both the high and low side of the asymmetric signal. In particular, the high side threshold is adjusted downwards a predetermined amount until detected, the high side threshold voltage is then recorded and reset to the maximum value. Correspondingly, the low side threshold is then adjusted upwards the predetermined amount until detected, the low side threshold voltage is then recorded and reset to the minimum value. The algorithm may be repeated to continuously monitor a signal. The gain of the read amplifier can then be accordingly adjusted by the controller such that it approximately equals the peak of the amplified reference burst to the predetermined value. The controller additionally utilizes the digital samples of the reference burst signal level for controlling the initial transverse position of the tape head assembly on the magnetic media.
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Futatsugi Nobuyoshi
Millerd, Jr. Andrew B.
Aiwa Co. Ltd.
Dam Tuan Q.
Trammell James P.
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