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

Image Number 9 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
Medicament container
Transmission channel for ultrasound applications
Communication device
Compositions, organisms, systems, and methods for expressing a gene product in plants using SCBV expression control sequences operable in monocots and dicots
Device for transmitting data between a serial data bus and working modules such as actuator modules and/or I/O modules
Medical imaging probe with rotary encoder
Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene
  Randomly Featured Patents
Method in the drying of a paper web or equivalent
Photographic recording material
Method and apparatus implementing random access and time-based functions on a continuous stream of formatted digital data
Systems and methods for using polyaxial plates
Exterior wall sealing system
Horizontal wellpointing method and apparatus
Thin-film transistor substrate and liquid crystal display device having the same
Bumped semiconductor component having test pads, and method and system for testing bumped semiconductor components
Autofocusing device for use in a video camera and an autofocusing method thereof
Printing member for electrostatic photocopying