SENSING DEVICE FOR DIGITAL MAGNETIC MEMORY

摘要

A sensing device for a digital magnetic memory in which a signal sensed by a magnetic head is, after being differentiated by a differentiation circuit, supplied to a first low-pass filter by which harmonic components of the differentiated signal are eliminated therefrom. This signal is then supplied to both means for generating a first pulse signal each time the signal traverses the zero level and a second low-pass filter, the output signal of the second low-pass filter being further supplied to means for generating a second pulse signal each time the output signal of the second low-pass filter traverses the zero level. The first and second pulse signals are supplied to an AND gate to produce the logic product thereof to provide an inherent peak signal.