Spectrum displaying apparatus for multichannel signals

Details Spectrum displaying apparatus for multichannel signals Spectrum displaying apparatus for multichannel signals

1980-07-09

1982-07-13

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324 77B, G01R 2316

Patent

active

043397115

ABSTRACT:
An apparatus for displaying the spectrum of multichannel signals includes band-pass filtering circuits of a plurality of channels provided to respectively correspond to the channels of a plurality of channels. Each of the band-pass filters of respective channels comprises a group of band-pass filters having filtering bands having a respectively different center frequencies and filtering by band dividing input signals. The apparatus comprises level comparing circuits for at least rectifying respectively the outputs of band-pass filters mutually having the same filtering band of the band-pass filtering circuits of the plurality of channels, thereafter level comparing the same, and obtaining the band signal of the higher level, an indication device having indicating parts of systems of the same number as the number of the band signals thus obtained, and circuits for supplying said band signals thus obtained to the indicating device and causing the levels thereof to be displayed by the indicating parts of the respectively corresponding systems.

REFERENCES:
patent: 3236947 (1966-02-01), Clapper
patent: 3450989 (1969-06-01), Dickinson
patent: 3482211 (1969-12-01), Claris et al.
patent: 3611411 (1971-10-01), Moshier
patent: 3731188 (1973-05-01), Smith

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