Resources Contact Us Home
Acoustic projector for propagating a low dispersion sound field

Image Number 10 for United States Patent #7912234.

A broadband sound generator and transmitter provides minimal attenuation of sound over the distance between the generators and a point at a selected distance. The transmission component includes a parabolic dish and a positionable framework for the sound generators. The sound generators are positioned in front of the dish and oriented to direct sound into the dish for reflection toward a target. Drive signal conditioning circuitry apportion components of the drive signal to the several sound generators and adjust the signal in terms of delay and phase to accommodate changes in position of the generators relative to the dish.

  Recently Added Patents
Catalysts for polyurethane coating compounds
Liquid-filled protein-phosphatidic acid capsule dispersions
Multi-wired antenna for mobile apparatus
Calibration of quadrature imbalances using wideband signals
System and method of detecting and locating intermittent and other faults
Pre-primed roofing membrane
Method of measuring the flux of a soil gas
  Randomly Featured Patents
Lightweight speaker enclosure
Method of controlling an amount of toner charging in an electrophotographic image forming apparatus and apparatus using the same
Water ski rack
Intake valve control system and method for internal combustion engine
Method for displaying background image in mobile telephone
Low NOx combustion method and apparatus
Method of providing information from query results stored as source code files
Temporal decomposition for design and verification
Video encoding/decoding method and apparatus for motion compensation prediction
Six-way adjuster apparatus and method