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
System and method for locating, tracking, and/or monitoring the status of personnel and/or assets both indoors and outdoors
Polypeptides having beta-glucosidase activity and beta-xylosidase activity and polynucleotides encoding same
Maintenance tool of control systems
Portable massage apparatus
Database caching utilizing asynchronous log-based replication
Grounding fitting
Provision of downlink packet access services to user equipment in spread spectrum communication network
  Randomly Featured Patents
Apparatus for measuring a force
HDD track following control apparatus and method
Chinese dogwood named `Madison`
Holder for a sound recording medium housing having rattling noise prevention means
Draw bar force sensing locomotive control system
Method for sequencing the cutting of elongated stock
System and method for attenuating the effect of ambient light on an optical sensor
Cell shunt circuit for battery cells
Information processing apparatus, information processing method, and computer product
Pyrrolo(3,2-e)pyrazolo(1,5-a)pyrimidine derivative and medicine comprising the same