Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Multi-carrier operation for wireless systems
Identification of websites that break out of frames
Electronic apparatus and manufacturing method of electronic apparatus
Electro-optical device, method of manufacturing the same, and electronic apparatus
Process for the preparation of diene polymers of statistical vinylarene-diene copolymers
Automatic stop and restart device for an engine
Parasitic element compensation circuit and method for compensating for the parasitic element
  Randomly Featured Patents
Indanyl derivatives, their preparation and use
Portable diagnostic handset
Calibration methods for blood content sensors
Method and device for detecting position of a rotating control member
Plastics compactor for mobile equipment
Media cassette sensing system
Power amplifier with stabilising network
Process for quenching hydrocarbon cracking apparatus effluent
Composite shaft coupling element having reinforced eyes
Vapor-phase growth apparatus and compound semiconductor device fabricated thereby