Resources Contact Us Home
Miniature speaker device and television set

Image Number 10 for United States Patent #8130998.

A miniature speaker device includes a housing, a speaker mounted on the housing, a passive radiator mounted on the housing and vibrating in resonance with vibration of the speaker and having no driving system and a low frequency range amplification circuit for amplifying sound pressure in frequency components of a low frequency range of a single audio signal input in the speaker.

  Recently Added Patents
Semiconductor device and method of adjusting characteristic thereof
Efficient location discovery
Display control device, display control method, and touchpad input system
Method for using a super-slippery thin layer characterized by the method for making same
Secure data entry device
Hydrogen generation device and fuel cell system
Apparatus and method for encoding/decoding signal
  Randomly Featured Patents
Hydraulic filter head-mounted flowmeter
Polysilicon gate bus with interspersed buffers for driving a row of pixels in an active matrix liquid crystal display
Method of forming substrate contact for semiconductor on insulator (SOI) substrate
Data distribution server
Control device and control method for robot
Rod-type support for suspension systems for shelves and similar objects
Manual dual overcenter latch mechanism and lock mechanism
Electrolyte for electrochemical device and the electrochemical device thereof
Compound and treatment
Regeneration of alkali metal sulfides from alkali metal hydrosulfides