Patents Assigned to Audio Science Investors Limited Partnership
  • Patent number: 4701750
    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.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: October 20, 1987
    Assignee: Audio Science Investors Limited Partnership
    Inventors: James P. Wilkinson, Thomas R. Halverson