| 摘要 |
<p>In a bubble memory of the type employing electrical current pulses to sequentially advance magnetic bubbles along preselected paths within a magnetic bubble layer, high speed operation is achieved through the use of two generally co-extensive conductive layers (25, 26) overlying the magnetic bubble layer, the two conductive layers being spaced apart by an insulating film (27). Each layer includes a pattern of apertures (30, 31 FIG. 3) therethrough, corresponding apertures in the two layers being slightly off-set from one another. Various sequences of current pulses (e.g. I1, I2, I3, I4 - FIG. 5) are applied to the conductive layers for advancing the bubbles along propagation paths defined by the aperture patterns. </p> |
