Patents by Inventor Pih-Si Cheng

Pih-Si Cheng 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).

  • Patent number: 6891504
    Abstract: The present invention provides a dual-band inverted-F antenna configured for portable electronic devices having wireless communication function. The antenna includes a first planar conductive element and a second planar conductive element. The first planar conductive element, with an L-shaped design, has a feed point for transmitting received signals to the portable electronic devices. The second planar conductive element, a rectangular board, is orthogonal to the first planar conductive element and is connected to the first planar conductive element at a node. The node formally separates the second planar conductive element into two parts to receive two different frequency signals respectively.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: May 10, 2005
    Assignee: Wistron Neweb Corporation
    Inventors: Pih-Si Cheng, Huey-Jen Lin
  • Publication number: 20050035911
    Abstract: The present invention provides a dual-band inverted-F antenna configured for portable electronic devices having wireless communication function. The antenna includes a first planar conductive element and a second planar conductive element. The first planar conductive element, with an L-shaped design, has a feed point for transmitting received signals to the portable electronic devices. The second planar conductive element, a rectangular board, is orthogonal to the first planar conductive element and is connected to the first planar conductive element at a node. The node formally separates the second planar conductive element into two parts to receive two different frequency signals respectively.
    Type: Application
    Filed: September 29, 2003
    Publication date: February 17, 2005
    Inventors: Pih-Si Cheng, Huey-Jen Lin