Resources Contact Us Home
Multifunction-type vibration actuator and portable communication equipment

Image Number 8 for United States Patent #7529381.

A multifunction vibration actuator is disclosed, which includes a housing (1) integrally formed with a first house part (1a) with an elliptic wall (10), a second house part (1b) having a cylindrical wall (11) with a diameter corresponding to the first house part (1a) at the center of the ellipse, and both bottom walls (1c) and (1d) of the first housing part (1a). The actuator also includes an elliptic diaphragm (3) with an annular voice coil (3) installed on the inner surface thereof, a circular magnetic circuit part (4), and a disk type suspension (5). The elliptic diaphragm (3) is tightly installed in the wall of the first house part (1a), and the circular magnetic circuit part (4) is installed in the cylinder of the second house part (1b) with the suspension (5).

  Recently Added Patents
Method and system for electronic assistance in dispensing pharmaceuticals
Binder for secondary battery providing excellent adhesion strength and cycle property
Multi-user remote health monitoring system with biometrics support
Method for automatically estimating inertia in a mechanical system
Method of allocating IP address of image forming apparatus using DHCP, image forming apparatus and system of allocating IP address using DHCP
Method for improving the performance of browser-based, formula-driven parametric objects
Harmonic sensor
  Randomly Featured Patents
Grain mill
Valve apparatus
Intrusion detection system for a multimode optical fiber using a bulk optical wavelength division multiplexer for maintaining modal power distribution
Multi-processor computer system with cache-flushing system using memory recall
Ink jet recording head and apparatus
Insolubilizing additives for paper coating binders and paper surface size
Automatic document conveyance device
Double panel boxes
Image heating apparatus and heater used therefor
Battery temperature unevenness suppressing power supply