Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Speaker










Image Number 3 for United States Patent #6522759.

A reduced-size speaker for generating sound waves in wide low frequency audio region includes a cylindrical main body which is open at the top and bottom surfaces, a top lid being provided on the top surface of the main body and a circular ring-shaped base, which has a hole in its center, being provided on the bottom surface of the main body. A circular sound pipe is provided approximately in the center of the top lid and extends from the upper surface of the main body through the inside of the main body. A disc-like film is provided over the opening of the hole of the base, which is located at the outer side with respect to the main body, the disc-like film being held between the base and a circular ring-shaped bottom lid. A disc-like sound generator is provided in the opening of the hole of the base, which is located at the inner side with respect to the main body, with a circular ring-shaped damper provided in between. A plurality of supporting members are attached to the bottom lid in order to mount the speaker on a mounting surface.








 
 
  Recently Added Patents
Mobile terminal and method for changing page thereof
Communication terminal device, and recording medium
Escutcheon
Soybean cultivar CL0911444
Opioid-ketamine and norketamine codrug combinations for pain management
Center spreader adapter tool for toilet paper rolls and paper towel rolls that do not have inner cardboard tubes
Method and apparatus for encoding and decoding video based on first sub-pixel unit and second sub-pixel unit
  Randomly Featured Patents
Sectional plumbing fixture enclosure removably secured with clip
Phase synchronisation
Table
Earthquake early warning system
Power semiconductor device
Vacuum switch bulb type change over switch for on-load tap changer
Sheet feeding machine
Policy-based network security management
Dual gate FET mixing apparatus with feedback means
Method and apparatus for setting or modifying programmable parameter in power driven wheelchair