Patent ID: 9653178
Date: 2017-05-16
CPC Classifications: G11C

Claim:
1. A storage device comprising: a comb-shaped magnetic track; a first drive circuit; a second drive circuit; a first drive port connected to the first drive circuit; a second drive port connected to the second drive circuit; a write circuit connected to a bottom of the comb-shaped magnetic track and configured to perform a write operation; and a read circuit connected to the bottom of the comb-shaped magnetic track and configured to perform a read operation, wherein the comb-shaped magnetic track comprises: wherein at least one storage area of the first storage area and the second storage area comprises at least two memory bars, wherein the first drive circuit is configured to drive the first storage area, wherein the second drive circuit is configured to drive the second storage area, wherein a first magnetic domain wall in a first memory bar in the first storage area is configured to move by controlling input voltages of a first port, a second port, the first drive port, and the second drive port and driving the first drive circuit to generate a first current pulse in the first memory bar, and wherein a second magnetic domain wall in a second memory bar in the second storage area is configured to move by controlling the input voltages of the first port, the second port, the first drive port, and the second drive port and driving the second drive circuit to generate a second current pulse in the second memory bar.