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
Isolated Australian coral reef fluorescent proteins and cell-based kinase or phosphatase platforms for cancer drug development
Support core for cold shrink tube
Sub-resolution assist feature repair
Method of operating a split gate flash memory cell with coupling gate
Network decoys
Near-field transducers for focusing light
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
  Randomly Featured Patents
Methods of preparing primary, secondary and tertiary carbinamine compounds in the presence of ammonia
Continuous process for converting polytetramethylene ether diester to polytetramethylene ether glycol
Dual-band monopole antenna with antenna signal fed through short-circuit terminal of transmission line
Wideband sonar energy absorber
Scan assembly and method for transferring power and data across a rotary interface
Embedded cell loopback method and system for testing in ATM networks
Remote support for computer or other electronic device
Faucet
Device and method utilizing electromechanical conversion element
Process for the chemical modification of thermoplastics that contain alkyl groups