Patents by Inventor Bailiang Zhang

Bailiang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vibrating system of panel form electrodynamic loudspeaker
    Patent number: 8144916
    Abstract: The present invention discloses a vibrating system of flat-plate electrodynamic loudspeaker, which comprises a flat-plate vibrating plate and a voice coil mounted under the vibrating plate. The vibrating system is characterized in that the thickness of the vibrating plate within the voice coil is not more than ½ of that of the vibrating plate outside the voice coil. Alternatively, the vibrating plate within the voice coil can be replaced by a vibrating diaphragm. The thin plate within the voice coil according to the present invention can provide compensation for high frequency response, widen frequency band, and reduce the overall height of voice coil and vibrating plate. According to the present invention, a thin flat-plate loudspeaker that almost cover the full audio frequency bands can be designed, thereby producing a thin flat-plate full frequency speaker system to meet the demand of market.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: March 27, 2012
    Inventor: Bailiang Zhang
  • VIBRATING SYSTEM OF PANEL FORM ELECTRODYNAMIC LOUDSPEAKER
    Publication number: 20090262961
    Abstract: The present invention discloses a vibrating system of flat-plate electrodynamic loudspeaker, which comprises a flat-plate vibrating plate and a voice coil mounted under the vibrating plate. The vibrating system is characterized in that the thickness of the vibrating plate within the voice coil is not more than ½ of that of the vibrating plate outside the voice coil. Alternatively, the vibrating plate within the voice coil can be replaced by a vibrating diaphragm. The thin plate within the voice coil according to the present invention can provide compensation for high frequency response, widen frequency band, and reduce the overall height of voice coil and vibrating plate. According to the present invention, a thin flat-plate loudspeaker that almost cover the full audio frequency bands can be designed, thereby producing a thin flat-plate full frequency speaker system to meet the demand of market.
    Type: Application
    Filed: September 27, 2007
    Publication date: October 22, 2009
    Inventor: Bailiang Zhang