Bubble domain circuit organization

DETAILED DESCRIPTION This invention describes a unique bubble memory chip organization which combines the advantages of the serial type organization such as major-minor chip and parallel type organization such as the on-chip decoder chip.
The device access time is much faster than the convertial major-minor chip and the chip control 13 is simpler than the decoder chip.
The chip organization is a multiplexed decoder organizaton with many identical channels operated in parallel.
Each channel is a separate decoder organization.
The channels are identical to each other except that the generator and detector distances are separately adjusted.
With a unique data distribution among these channels, all the channels can be operated in parallel and, thus, the whole chip function is equivalent to a single chip with one set of generator, detector and access controls.
By subdividing the chip into channels, the number of decoder leads can be greatly reduced, thereby simplifying the complexity of the chip and also the control electronics while the access time may still be maintained close to the convertial decoder chip organization.
This invention relates to a magnetic bubble domain chip organization having a plurality of propagation channels and using an improved decoder scheme.
In this organization, an output bubble is produced for a periodically controlled number of cycles.
Specific circuit organization permits alternate bit propagation therein.
A multiple output replicator in the chip organization replicates the bubbles from the generator into prescribed numbers of new bubble domains.
However, in different propagation channels different propagation times are provided between the generator and the multiple output replicator.
Thus, bubbles are supplied to the replicators at the same time even though the generators are operated at different times.
Before the new bubbles from the replicators reach the respective storage registers, they are decoded by an input decoder which destroys all bubbles except the selected stream