Resources Contact Us Home
Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array

Image Number 4 for United States Patent #7650006.

A method and a loudspeaker construction (10), in which loudspeaker construction spherical acoustic wave fronts emitted by the diaphragms (12) of speaker elements (11) are transformed into a uniform, planar acoustic wave front. The loudspeaker construction (10) comprises a plane wave channel (20), in the surface (26) of which plane wave channel directed towards the diaphragm (12) there are adjacent sound inlet apertures (24) for transmitting acoustic waves into ducts (23) and, on the opposite side (22) of the plane wave channel, there are outlet apertures (25) for transmitting acoustic waves from the ducts into a horn portion (30). The ducts (23) taper so that the width (B) of the outlet apertures located in a row on the side of the horn portion is less than half the diameter (D) of the diaphragm.

  Recently Added Patents
Resolution setting apparatus, resolution setting method, and recording medium recording a resolution setting program when a television is used as a monitor of a computer
Method for dropping packet data, radio communication device, and mobile communication system
Method and apparatus for connecting to external device
Methods of implanting dopant ions
Method of manufacturing III-nitride crystal
Method for forming ventilation holes in an electrode plate
Complete context search system
  Randomly Featured Patents
Color-separating and--recombining optical system and projection display using the same
Single pass sizing tool and machine including wear compensation means
Retaining device for concealed slide fastener
VoWLAN roaming controller with station pre-authentication
Stabilized mount for, and method of, steadily supporting a motion-sensitive, image capture device
Method for determining launch system velocity, acceleration and displacement certification parameters
Wood crossties with cellular plastic inserts
Tandem piezoelectric actuator and single drive circuit for atomic force microscopy
Method for uniformizing surface normals of a three-dimensional model
Time index access structure for temporal databases having concurrent multiple versions