Patents by Inventor Ying-Jen Liu

Ying-Jen Liu 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: 6709278
    Abstract: A personal digital assistant (PDA) with a foldable memory card adapter has a PDA and a memory card adapter. The PDA is formed with a connecting slot in one edge of the PDA. The memory card adapter is connected to the PDA by a slide connector on an end a signal bus made of flexible material. When the card adapter is attached to the PDA, the slide connector is linked to the connecting port, whereby the memory card adapter can be folded to overlap the rear of the PDA. Thus the entire size of the PDA device is reduced and convenient to carry.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: March 23, 2004
    Assignee: Unication Co., Ltd.
    Inventor: Ying-Jen Liu
  • Publication number: 20030181074
    Abstract: A personal digital assistant (PDA) with a foldable memory card adapter has a PDA and a memory card adapter. The PDA is formed with a connecting slot in one edge of the PDA. The memory card adapter is connected to the PDA by a slide connector on an end a signal bus made of flexible material. When the card adapter is attached to the PDA, the slide connector is linked to the connecting port, whereby the memory card adapter can be folded to overlap the rear of the PDA. Thus the entire size of the PDA device is reduced and convenient to carry.
    Type: Application
    Filed: March 21, 2002
    Publication date: September 25, 2003
    Inventor: Ying-Jen Liu