Patents by Inventor Ping-Chieh Yeh

Ping-Chieh Yeh 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).

  • Handover method used in a wireless communication system
    Patent number: 7567808
    Abstract: A handover method used in a wireless communication system for handing over a mobile device from a first base station to a second base station is provided. Firstly, a first signal power between the mobile device and the first base station as well as a second signal power between the mobile device and the second base station are respectively measured by the mobile device. Next, the first signal power is compared with the second signal power, and an equal signal power is generated if the two signal powers are substantially the same. Then, the mobile device is handed over to the second base band if the signal power between the mobile device and the first base station is measured by the mobile device to have the same level with the equal signal power.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: July 28, 2009
    Assignee: Qisda Corporation
    Inventor: Ping-Chieh Yeh
  • Handover method used in a wireless communication system
    Publication number: 20060052105
    Abstract: A handover method used in a wireless communication system for handing over a mobile device from a first base station to a second base station is provided. Firstly, a first signal power between the mobile device and the first base station as well as a second signal power between the mobile device and the second base station are respectively measured by the mobile device. Next, the first signal power is compared with the second signal power, and an equal signal power is generated if the two signal powers are substantially the same. Then, the mobile device is handed over to the second base band if the signal power between the mobile device and the first base station is measured by the mobile device to have the same level with the equal signal power.
    Type: Application
    Filed: August 18, 2005
    Publication date: March 9, 2006
    Inventor: Ping-Chieh Yeh