Michael A Skubic

US Patent:

6580024, Jun 17, 2003

Filed:

Jan 10, 2002

Appl. No.:

10/041747

Inventors:

Michael J. Skubic - Orland Park IL

Assignee:

Peterson Electro-Musical Products, Inc. - Alsip IL

International Classification:

G09B 1500

US Classification:

84477R, 84616, 84454

Abstract:

A musical instrument tuning and intonation aid employs a novel concept and method, which closely approximates a desirable mechanical stroboscopic effectâbut without mechanical moving parts. A suitable image pattern is displayed on an electronically controlled, visual display screen of any available type (Liquid Crystal Display, Organic LED Display, Electro-Luminescent Display, Cathode Ray Tube display, etc. ) in direct and immediate response to the detection of a unique phase of the fundamental pitch periods in arbitrary acoustic or electrical signals. The displaced position of the pattern at these instants is determined by a pre-calculated reference frequency.