Equalizer apparatus having two dimensional display

Details Equalizer apparatus having two dimensional display Equalizer apparatus having two dimensional display

1982-08-05

1985-03-12

George, Keith E.

Electrical audio signal processing systems and devices

Including frequency control

Having automatic equalizer circuit

381 58, 324 77E, H03G 502, G01R 23165

Patent

active

045049688

ABSTRACT:
In a presettable graphic equalizer for use in a car stereo or the like, a display device capable of two-dimensional display is disposed, whereby a frequency characteristic presently given to audio signals can be immediately known from the display of the display device.

REFERENCES:
patent: 4064364 (1977-12-01), Veale
patent: 4225834 (1980-09-01), van Doorn
patent: 4285065 (1981-08-01), Priniski
patent: 4307340 (1981-12-01), Inami et al.
patent: 4316060 (1982-02-01), Adams et al.
patent: 4359601 (1982-11-01), England
patent: 4363001 (1982-12-01), Suzuki et al.
patent: 4405836 (1983-09-01), Meyerhoff

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