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
Comparison judgment circuit
SSPC distribution system and control strategy
Analogs of benzoquinone-containing ansamycins and methods of use thereof
Impact sensing and identification system for pedestrian protection device
MU-MIMO-OFDMA multi-rank CQI and precoder signaling schemes
Purinone derivatives as HM74A agonists
UV mask with anti-reflection coating and UV absorption material
  Randomly Featured Patents
Biconical optical waveguide splice
System and method for digitally compensating frequency and temperature induced errors in amplitude and phase shift in current sensing of electronic energy meters
Gas burner for a combined laundry appliance
Loop reactor with varying diameter for olefin polymerization
Method of manufacturing semiconductor device and semiconductor device
System and method to provide interactivity for a networked video server
Concealed cover for a fire sprinkler head
Electric deep fryer
Plethysmograph pressure correcting arrangement
Method of forming a sidewall on a semiconductor element