Thomas M Halverson

US Patent:

47017503, Oct 20, 1987

Filed:

Aug 6, 1984

Appl. No.:

6/638112

Inventors:

James P. Wilkinson - Richfield MN
Thomas R. Halverson - Duluth MN

Assignee:

Audio Science Investors Limited Partnership - Duluth MN

International Classification:

G08B 300

US Classification:

340384E

Abstract:

A motorcycle sound simulator for non-motorized vehicles is disclosed having a sensor (16) to detect motion of a wheel (18) and transmit electrical signals to a control unit (12). The control unit, through its microprocessor, produces a firing period (520) which includes a pulse train burst (522) and silence (524) which are respectively altered in length to produce motorcycle-like sounds. Other motorcycle attributes such as shifting gears (514), acceleration (508), deceleration (512), misfire (516), and failure to start (504) are provided and audio output is generated with audible tones corresponding to a motorcycle-type sound.