Digital apparatus for waveform measurement

Details Digital apparatus for waveform measurement Digital apparatus for waveform measurement

1975-07-07

1979-02-27

Tokar, M.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324121R, 328151, G01R 2316

Patent

active

041421469

ABSTRACT:
Digital instrumentation for waveform measurement including method and apparatus for providing irregularly spaced sampling times to prevent misleading visual patterns of coordinate points due to the presence of signal frequencies above the Nyquist frequency. The method and apparatus includes means for plotting coordinate points having abscissa positions corrected according to actual irregular sampling times, method and apparatus whereby irregularities are repeated for each signal sweep, and method and apparatus utilizing a bit reversal system to achieve the irregularly spaced sampling times.

REFERENCES:
patent: 3456189 (1969-07-01), Hornak
patent: 3473123 (1969-10-01), Hornak
patent: 3659086 (1972-04-01), Metcalf
patent: 3713029 (1973-01-01), Kozo Uchida

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