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
Method and system for detecting center pivot collision
Method for transforming a single reactor line
System and method for reducing antivirus false positives
Optimizing federated and ETL'd databases with considerations of specialized data structures within an environment having multidimensional constraint
Catalysts and process for producing aldehydes
Soliciting first party in communication session to maintain call when degradation of connection to second party is anticipated
Stool
  Randomly Featured Patents
Liquid crystal device, drive method therefor, and projection type display apparatus
Plant guard
Diaphragm controlled irrigation valve with captivated bleed screw
Transducer structure for generating uniform and focused ultrasonic beams and applications thereof
Methods for forming non-volatile adhesive promoter composition for curling adhesives
Piezoelectric actuator
Laboratory tote
Single panel color projector
Insert assembly for use in pre-stressed concrete structures
Wheel-locking suspension fork assembly for a bicycle