Richard A Neatrour

US Patent:

49397826, Jul 3, 1990

Filed:

Jun 24, 1987

Appl. No.:

7/065966

Inventors:

Anthony A. Gambacurta - Rochester NY
Mitchell J. Milton - Webster NY
Richard A. Neatrour - Webster NY

Assignee:

Applied Research & Technology, Inc. - Rochester NY

International Classification:

H03G 500

US Classification:

381103

Abstract:

A multi-band graphic equalizer is provided that includes a plurality of controllable frequency response determining elements, each element having a primary effect in its primary frequency band and a secondary effect in at least one adjacent frequency band, a graphic input device for entering an input that graphically represents a desired frequency response characteristic, and a controller connected between the input means and the frequency response determining elements for calculating the necessary frequency response characteristic for each controllable frequency response element based on the in band and out of band effects of each element to produce the desired overall frequency response characteristic and for generating a plurality of sets of control signals, one set of control signals for each frequency response determining element, so that the overall frequency response characteristic produced by the plurality of frequency response determining elements is as close as possible to the desired frequency response characteristic entered at the graphic input device.