Device for the magnetic domain storage of data having a shift register filled with coded series of domains

A magnetic transducing device for recording information in a magnetizable recording medium and for reproducing the information recorded therein, comprising a layer having a layer of magnetizable material, means for maintaining magnetic bubble domains in said layer including a main magnetic field generator, a field produced by said generator extending transversely to the layer, said layer being adapted to be coupled magnetically with the recording medium for transducing of information, means for generating magnetic bubble domains in the layer, an information input means, a bubble domain coding device connected to said information input means, and means to generate a magnetic transfer field having a field strength and orientation at which the required coupling between the bubble domain and the recording medium is effected, a first shift register for magnetic bubble domains, said magnetic bubble generator means being connected to said first shift register, said bubble domain coding device comprising means for filling the shift register with successive coded series of bubble domains, and means for effecting the coupling between at least one series of bubble domains and the recording medium at desired instants.