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
Apparatus for generating electrical energy from rocking activated energy
Managing deduplication density
LED string with a capability to maintain a current path and LED unit thereof
Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications
Automated tuning in a virtual machine computing environment
Method and apparatus for internet on-line insurance policy service
Polypropylene bottles
  Randomly Featured Patents
Process for producing shaped bodies comprising fiber-reinforced ceramic materials
Pharmaceutical compositions comprising 1-isopropyl-3-[(4-m-toluidino-3-pyridyl)sulphonyl]-urea as active ingredient
Metal detector sensing head with reduced eddy current coils
Sensors having gap based sensing devices and methods of making and using the same
Rear seat apparatus for automobile
Slidable assembly including slider pieces with an upper and lower part
Apparatus and method for correcting skew of a traveling crane
Adjustable and expandable spool or reel assembly
Aggregate drivers for a configurable media-independent server