Replicator for cross-tie wall memory system incorporating isotropic data track

A replicator for a cross-tie wall memory system in which binary data are stored as cross-tie, Bloch-line pairs in a cross-tie wall in a data-track-defining thin ferromagnetic film strip and in which said binary data are generated in and are serially propagated along said cross-tie wall in said data track by appropriate drive fields, comprising:

• first and second continuous thin ferromagnetic film strips, each defining first and second data tracks, respectively, and each having a cross-tie wall oriented along its length for supporting cross-tie, Bloch-line pairs, said first and second data tracks having an overlapping, merging portion in which said first and second cross-tie walls are spaced apart approximately one half cross-tie length;
• first and second structuring means associated with said first and second data tracks for structuring the positioning of said cross-tie, Bloch-line pairs along said first and second data tracks, respectively;
• first and second propagating means associated with said first and second data tracks, respectively, for propagating the cross-tie, Bloch-line pairs in said merging portion of said first and second data tracks in opposite directions, but at a similar propagation frequency F.sub.p ;
• and
• replicate enable generator means coupling a replicate enable field of a given intensity to said merging portion of said first and second data tracks for generating in said second data track the replica of the cross-tie, Bloch-line pairs in said first data track at said propagation frequency F.sub.p.