| 摘要 |
A magnetic bubble memory detector-amplifier for use with a bubble memory device having the dual output from an active and a dummy bubble detector in combination consists of a differential amplifier associated with constant current sources to drive the bubble detector elements, a notch filter coupled to the output of the differential amplifier to eliminate the rotating magnetic field frequency component, an amplifier coupled to the output of the filter which is controlled by a bias pulse at the fundamental frequency of operation to provide a reference for better discrimination between "ones" and "zeros," and, finally, a self-biasing detector coupled with a strobed output flip-flop.
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