Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Panel-form loudspeakers










Image Number 4 for United States Patent #6198831.

A panel form loudspeaker/microphone combination has a distributed resonant bending wave member and two transducers mounred on the member at sites where the number of vibrationally active resonance anti-nodes is relatively high. One transducer is capable of vibrating the member to couple to and excite resonant bending wave modes in the member and cause the member to produce an acoustic output. The other transducer also is capable of coupling to he resonant bending wave modes in the member, but it produces an output signal in response to resonance of the member due to incident acoustic energy. The combination may be part of a loudspeaker system including an amplifier for the source signal coupled to the first transducer, and a signal receiver coupled to the second transducer for treating the output signal.








 
 
  Recently Added Patents
Spectral sensor for checking documents of value
Methods for selective reverse mask planarization and interconnect structures formed thereby
Method of providing user-tailored entertainment experience at hospitality location and hospitality media system thereof
Powder for layerwise manufacturing of objects
Leadless integrated circuit packaging system and method of manufacture thereof
Assigning runtime artifacts to software components
Adsorptive molded parts and the use thereof
  Randomly Featured Patents
Micro secondary electron multiplier
Phase-reversible composition
Raindrop counter and control system for irrigation systems
Luminaire
Browser controller
Gear transmission with an anti-rattle system
Trimming camera
Enantiomers of 4-[[(cyanoimino) [(1,2,2-trimethylpropyl)amino]methyl]amino]benzonitrile
Pediatric method of use of bambuterol
Optical scanning-type touch panel