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
Pulley tensioner for an oil wet belt drive
Thin film transistor manufacturing method, thin film transistor, thin film transistor substrate and image display apparatus, image display apparatus and semiconductor device
Floor tile with elastomer jacketed bottom support members
Sanitary water conservation device
Heating device for testing integrated components
Display screen control device, display screen control method, and computer readable medium
Analog-to-digital converter
  Randomly Featured Patents
Scan engine with integrated object sensor in electro-optical readers
Chemical concentration by adsorption
Fast destaging method using parity engine
Brush holder for a commutating electric machine
Access device maintenance apparatus and method
Platen coating structure for chemical mechanical polishing and method
TCXO replacement for GPS
Graded anti-reflective coating for IC lithography
Software protection using oblivious data structures
Method and system for managing apparatus performance