Digital waveform analyzer

Details Digital waveform analyzer Digital waveform analyzer

1976-10-12

1978-04-18

Birmiel, Howard A.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315169TV, 324121R, 340166EL, 340324M, 358241, G08B 536, H04N 314

Patent

active

040853527

ABSTRACT:
The Digital Waveform Analyzer is a solid state highly portable device that approximates the operation of a cathode ray oscilloscope in time sweep mode by selectively lighting elements of a rectangular matrix of light emitting diodes. The LED array has its rows driven by a vertical circuit and its columns driven by a horizontal circuit. The vertical circuit converts the analog input signal to a "one-of-N" digital code. The converter utilizes an array of comparators and exclusive OR gates and does not require clocking. The horizontal circuit which corresponds to the sweep section of a standard cathode ray oscilloscope has a variable frequency clock generator, a binary counter, a decoder and synchronizing circuits.

REFERENCES:
patent: 3309610 (1967-03-01), Yamamoto
patent: 3622697 (1971-11-01), Metzger
patent: 3863221 (1975-01-01), Kaji
patent: 3872386 (1975-03-01), Luhowy
patent: 3896375 (1975-07-01), Trolliet
patent: 3946378 (1976-03-01), Hahn et al.
patent: 4004220 (1977-01-01), Kerber et al.

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