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
Surface modification
System and method for ensuring compliance with organizational policies
Backside structure and methods for BSI image sensors
Electronic device, communication control method of electronic device, and information terminal device
Method for eliciting an immune response to human telomerase reverse transcriptase
Water slide
Treatment of cancer using the sodium salt of a benzoic acid derivative
  Randomly Featured Patents
Inbred maize line PH38B
Exchange of processing metric information between nodes
Microwave sensor
Apparatus and method for controlling fluid in a micromachined boiler
Fuel injection amount control apparatus and method for internal combustion engine
Electronic device having connector with rows of terminals divided by ribs and ground or power terminal adjacent ribs
Device for the welding of an injection-molded spigot in a thin-wall fluid vessel
Apparatus for measuring on-die termination (ODT) resistance and semiconductor memory device having the same
Vacuum bag processing using dual seals
Low cost searching method and apparatus for asynchronous transfer mode systems