Bubble detection system

Details Bubble detection system Bubble detection system

1979-10-24

1981-10-06

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Detectors

365193, G11C 702, G11C 1908

Patent

active

042939305

ABSTRACT:
There is disclosed a double detection arrangement for minimizing soft errors emanating from a bubble memory. Soft errors are errors due to sporadic, periodic, and random noise which gives an erroneous indication of a bubble's presence. The arrangement provides double detection by sampling a bubble signal's wave shape on its positive and negative transition within a certain time frame. When a positive and negative transition are detected within a specified time frame, the presence of a bubble is considered to be present. Conversely, when only a single positive or only a single negative transition is detected within the time frame, the absence of a bubble or noise is assumed.

REFERENCES:
patent: 3953840 (1976-04-01), Cutler et al.

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