Resources Contact Us Home

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
Imidazolidine-2,4-dione derivatives, and use thereof as a cancer drug
Halogen-free flame retardants for epoxy resin systems
Method of manufacturing acrylic film, and acrylic film
Multi-chip package with a supporting member and method of manufacturing the same
Aggregating completion messages in a sideband interface
Method and system for acquiring support capability of mobile terminal by base station side system
Generating wiki pages from content and transformation objects
  Randomly Featured Patents
System and method for scheduling message transmission and processing in a digital data network
Air pump with a one-piece cylinder
Ball and socket pipe coupling
Method and apparatus to clean and apply foamed corrosion inhibitor to ferrous surfaces
Harness for looms
Real-time detection of failed inter-node link in network
Self-crosslinking cationic polyurethane based electrodepositable binders
Melt extrudable polyvinyl alcohol compositions
Intermeshed communication network
Slip lug adaptor apparatus