Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Acoustic structure and acoustic room










Image Number 15 for United States Patent #8006802.

In a hollow member, a portion of a hollow region adjoining and communicating with an opening portion is constructed as an intermediate layer. The intermediate layer is constructed in such a manner that, when a reflective surface radiates reflected waves corresponding to incident sound waves falling from an external space on the opening portion and the reflective surface of the hollow member, a phase, in the opening portion, of reflected waves produced by resonance of the resonator in response to the incident waves differs from a phase of reflected waves on the reflective surface, and that the absolute value of a value obtained by dividing a specific acoustic impedance of the opening portion by a characteristic impedance of a medium of the opening portion is less than one. A sound absorbing effect through resonance-based action in the opening portion and a sound scattering effect through a flow of gas molecules.








 
 
  Recently Added Patents
Maltol ether processes and intermediates
Apparatus for focus beam analysis of high power lasers
Asynchronous task execution
Pelvic registration device for medical navigation
Solid-state imaging device, method for manufacturing solid-state imaging device, and electronic apparatus
Leaky wave mode solar receiver
Method for decoding a spatially multiplexed data signal using a maximum likelihood detection
  Randomly Featured Patents
Injection nozzle system
Image forming apparatus
Nuclear imaging system and method using segmented field of view
Visual representation and configuration of trading strategies
Ornamental display
Method and apparatus for estimation of error in data recovery schemes
Voltage generation circuitry having temperature compensation
Laptop computer with built-in scanner, copier, fax machine, and printer
Flat CRT display
Computer-implemented method for process control in chemical mechanical polishing