Tracking threshold circuit for peak detection

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit

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360 53, G11B 509

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active

055306012

ABSTRACT:
A method and apparatus for detecting peaks in a signal which comprises an alternating polarity waveform including a plurality of points. A selected point in the signal is designated. Thereafter, a threshold value for the selected point is established utilizing a prior threshold value associated set off with spaces with a point prior to the selected point as follows:

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"Adaptive Equalization in Magnetic-Disk Storage Channels" Cioffi et al., Feb. 1990, IEEE Communications, pp. 14-29.

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