Communications: electrical – Systems – Portable self-contained
Patent
1976-07-12
1978-05-02
Trafton, David L.
Communications: electrical
Systems
Portable self-contained
340324M, 350151, 365 1, G01D 700
Patent
active
040878090
ABSTRACT:
A display system for providing a real-time, dynamic presentation of an analog signal waveform is disclosed. The system includes an A-D converter that is coupled to a 1-out-of-M decoder that, in turn, drives a serial string of bubble domain generators. The bubble domain generators generate moving columns of bubbles, the heights of the columns representing the amplitudes of the analog signal waveform at each of the associated sample times. The bubble domain memory plane is of a construction to permit the columns of moving bubbles to appear as moving columns of bright spots when seen by an observer utilizing a plane polarized light beam and an analyzer.
REFERENCES:
patent: 3754121 (1973-08-01), Delay et al.
patent: 3775764 (1973-11-01), Gaur
patent: 3815107 (1974-06-01), Almasi
patent: 3824570 (1974-07-01), De Bot
patent: 3835465 (1974-09-01), Tannas et al.
patent: 3971887 (1976-07-01), Lin et al.
Cleaver William E.
Grace Kenneth T.
Sperry Rand Corporation
Trafton David L.
Truex Marshall M.
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