Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Hydrating lounge chair
Light powered hearing aid
Digital broadcasting transmission and reception system, and a signal processing method using turbo processing and turbo decoding
Electronic device and control method therein
Conductive polymer and a solid electrolytic capacitor using the same as a solid electrolyte
Leg mounted portable computer
System and method for a TCP mapper
  Randomly Featured Patents
Valve timing control device of internal combustion engine
Optical system for microscopes
Process and installation for the production of an organic solution of a water-insoluble organic base
Data output driving circuit of semiconductor memory apparatus
Failover protection from a failed worker node in a shared memory system
Separation of chemical species
Semiconductor light emitting device, image display system and illumination device
Device in connection with locking reeling means for safety belts for vehicles
Method of making a steel pipe by electric resistance heating of opposing edges of a sheet prior to laser welding
Press for continuously producing band-like articles