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
Critical word forwarding with adaptive prediction
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Comparison of visual information
Piezoelectric ultrasonic transducer apparatus
Device in a system operating with CAN-protocol and in a control and/or supervision system
Tool bag with removable tool wall
Tri-material dual-species neutron spectrometer
  Randomly Featured Patents
Switching fabric system having at least one subsystem including switch core elements arranged in port expansion architecture
Method and apparatus for determining a robustness metric for a circuit design
Liquid crystal display device having "H" character common electrode and method of fabricating thereof
Method for the production of composite elements based on isocyanate-based foams
Polyester composition
Concrete panel construction system
Circuit with stacked structure and use thereof
Wavelength selective optical devices using optical directional coupler
Compressor provided with pressure relief valve
Crankcase ventilation system