Patents by Inventor Ioc-Heng Leong

Ioc-Heng Leong 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).

  • Electronic switch for selecting satellite polarization signals
    Patent number: 5303403
    Abstract: An electronic switch used in a low-noise block down converter for receiving satellite horizontal or vertical polarization signals. The electronic switch only needs one single wire to receive a pulse width signal of a TV receiver. The electronic switch output a HIGH voltage level and a LOW voltage level according to the pulse Width of the signal from the TV receiver to control the selection of the vertical or horizontal polarization signals.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: April 12, 1994
    Assignee: Microelectronics Technology, Inc.
    Inventor: Ioc-Heng Leong