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
Charge pump and method of biasing deep N-well in charge pump
Quinazoline compounds and their use in perfume compositions
Decontamination apparatus and method
Touch sensing technology
Network decoys
System and method for managing investment funds
Method of fabricating solid electrolytic capacitor and solid electrolytic capacitor
  Randomly Featured Patents
Techniques for placing applications in heterogeneous virtualized systems while minimizing power and migration cost
Pyrimidine derivatives
Vacuum detection of bacteria
Wastewater treatment and dispersal system
Method for producing containers with a film made of thermoplastic synthetic material
Electronically switched multiple-channel optical receiver
Method and device for compressing and decompressing moving image data and information recording medium
Ceiling fan
Segmented permanent virtual circuits
Full magnetic bearings with increased load capacity