| 摘要 |
This invention discloses a method for the simultaneous control and management of an arbitrary number of bubble memories, whereby the existence, locations, and defects of the blemished data positions in the bubble memory devices are managed by the invention, allowing the external device using the bubble memories to no longer be cognizant of the blemished data positions of the bubble memories. Specifically, this invention uses a shift register connected in a parallel manner to the bubble memories, a second shift register connected to the external data bus, a means for storage for the valid data positions in the bubble memory devices, and a means for gating data between the two shift registers in a serial manner, the gating means being controlled by the memory containing the valid data positions.
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