Static information storage and retrieval – Magnetic bubbles
Patent
1979-05-21
1981-01-20
Moffitt, James W.
Static information storage and retrieval
Magnetic bubbles
365 43, G11C 1908
Patent
active
042466458
ABSTRACT:
A passive annihilator comprising an annihilator element in the form of a spiral located at the end of a path of propagate elements whereby bubbles, entering the spiral element in response to the rotating in-plane magnetic field, will follow the spiral path to its center, and any subsequent bubbles, in a stream of bubbles, entering the spiral will help hold the prior bubble captive in the spiral. The final bubble in a bubble stream under high magnetic bias conditions will be annihilated near the spiral center while the final bubble under low magnetic bias conditions will circulate in response to the in-plane rotating field indefinitely in the spiral, but is not free to escape, and will be annihilated by the entry of new bubbles from a subsequent bubble stream.
REFERENCES:
patent: 3713117 (1973-01-01), Bobeck
patent: 3729726 (1973-04-01), Bobeck
Burroughs Corporation
Dwyer Joseph R.
Fassbender Charles J.
Moffitt James W.
Peterson Kevin R.
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