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
Plants and seeds of hybrid corn variety CH717591
Method, system and program for securing redundancy in parallel computing system
Resistor-2 resistor (R-2R) digital-to-analog converter with resistor network reversal
Wafer level packaging
Information processing apparatus and power supply controlling method
Temporal document trainer and method
Dynamic facsimile transcoding in a unified messaging platform
  Randomly Featured Patents
Pressure differential switch
Heat dissipating structure for computer casing
Document ejector apparatus and method useful for copiers
Method for fabricating a flexible printed circuit board with access on both sides
Long period fiber grating package
Flavoring with 2-substituted-4,5-dimethyl-.DELTA..sup.3 -thiazolines
Lateral extended drain metal oxide semiconductor field effect transistor (LEDMOSFET) with tapered dielectric plates to achieve a high drain-to-body breakdown voltage, a method of forming the t
Method for producing a glass body
Vehicle handling system for submersibles
Blending cardiac rhythm detection processes