Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Enclosure for symbiotic active/passive operation of an acoustic driver










Image Number 7 for United States Patent #7624839.

A compact loudspeaker enclosure combines planar type devices for high frequency sound reproduction and cone type active devices for low frequency sound reproduction. The low frequency cone type transducers are mounted in baffles between forward and rear enclosed spaces and thus do not directly radiate into the environment. The first enclosed space is acoustically coupled to the environment by the planar device which is mounted between the first enclosed space and the environment with one major face mounted to radiate either directly into the environment or to be horn loaded. The planar operates as a passive radiator to the LF devices at low frequencies and an active device above a crossover frequency.








 
 
  Recently Added Patents
Acquiring access to a token controlled system resource
Methods and systems for telephony call completion
Motion estimation method
Method for generating downlink signal in downlink MIMO system
Method for operating a hybrid vehicle
System controlled responsive to data bearing records for permitting access
System and method for power management of storage resources
  Randomly Featured Patents
Process for the selective extraction treatment of gaseous hydrocarbon mixture containing carbon dioxide
Methods for identifying GLP-1 secretagogues
Method and apparatus for focusing a photographic apparatus
Automatic document feeding and scanning apparatus
Radiopaque core
Spring-applied electromagnetically-released brake
Open air stove
Multiple airborne missile launcher
Assembly separating a passenger compartment from an engine compartment
Armor