MAGNETIC BUBBLE MEMORY DEVICE

摘要

In a current stretch detection method for a magnetic bubble memory device in which bubbles are written at least one bit apart, a stretch pulse (SPC) is applied to a stretch conductor so that when a bubble is detected, it is maintained stretched, even though the bubble following it has moved one bit. Preferably, the stretch pulse is convex-shaped. A bubble memory device has a bubble stretcher detector including a hairpin stretch conductor (14) and a detecting element (15) disposed centrally in the conductor. The terminal of the detecting element on the higher potential side is arranged so as not to cross the stretch conductor. The contiguous propagation pattern is provided with a notch at a position in which the stretch conductor is located.