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Variable threshold bipolar signal peak detector

机译:可变阈值双极信号峰值检测器

摘要

A method and apparatus for detecting signal peaks caused by a thermal asperity event in a magnetic recording media to reduce data reading errors introduced by the thermal asperity event. A common mode voltage is determined for differential signals representing data bits read from the magnetic recording media and a threshold voltage produced responsive to the common mode voltage. A comparator determines if either of the differential signals exceeds the threshold voltage, thereby indicating the occurrence of a thermal asperity event.
机译:一种用于检测由磁记录介质中的热粗糙事件引起的信号峰值以减少由热粗糙事件引起的数据读取错误的方法和装置。确定用于表示从磁记录介质读取的数据位的差分信号的共模电压,以及响应于该共模电压而产生的阈值电压。比较器确定任一差分信号是否超过阈值电压,从而指示发生了热粗糙事件。

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