Patents Assigned to Amercian Technology Corporation
  • Publication number: 20020080984
    Abstract: An electrostatic loudspeaker includes a high resistivity stator with electrode conductivity per square that is constant and/or decreases with distance from the connection point. A contact area of predetermined size is related to the highest frequency of interest. The constant or decreasing surface resistivity of the stators, interacting with the capacitive load of the stator to stator gap, operates as a distributed network such that the active acoustic output is attenuated in a predetermined manner with increased frequency at all points equidistant on the stator from the connection area. The apparent acoustic source size is reduced as the frequency increases to maintain enhanced dispersion across the operating range of the loudspeaker system.
    Type: Application
    Filed: July 13, 2001
    Publication date: June 27, 2002
    Applicant: Amercian Technology Corporation
    Inventors: James J. Croft, Robert C. Williamson