System analyzer

Details System analyzer System analyzer

1989-05-18

1990-11-27

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324 77E, 381103, G01R 2316

Patent

active

049738976

ABSTRACT:
In a spectrum analyzer, an input signal is divided into a plurality of frequency bands, the signal level of each of the divided frequency bands is detected, and the signal levels of frequency bands situated between the divided frequency bands are calculated, for example, by arithmetic operating circuits, from the detected signal levels of the divided frequency bands adjacent thereto, whereupon the detected signal levels of the divided frequency bands and the calculated signal levels of the frequency bands between the divided frequency bands are all displayed, for example, as respective bar graphs, so that the frequency characteristic of the input signal can be readily observed.

REFERENCES:
patent: 4464781 (1984-08-01), Kaneko
patent: 4504968 (1985-03-01), Kaneko
patent: 4612665 (1986-09-01), Inami
patent: 4661982 (1987-04-01), Kitazato
patent: 4688258 (1987-08-01), Kunugi

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