Patents by Inventor Ching Fu Chuang

Ching Fu Chuang 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).

  • Apparatus for adjusting impedance of controlling chip on a computer mainboard
    Patent number: 6084425
    Abstract: An impedance adjusting apparatus of a controlling chip on a computer mainboard. When a computer is turned on, BIOS automatically detects the actual usage of the memory sockets, and then sends corresponding control signals to adjust the impedance of the impedance adjusting apparatus for a better impedance matching between the controlling chip and the memory sockets. The signal reflection is dramatically reduced and the operation bandwidth is widened.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: July 4, 2000
    Assignee: VIA Technologies, Inc.
    Inventors: Yuantsang Liaw, Ching-Fu Chuang, Nai-Shung Chang
  • Installation for providing constant loading in memory slot
    Patent number: 6031752
    Abstract: An installation inside a memory slot for providing a constant loading to an external signaling line with or without the insertion of a memory module into a memory slot. The installation operates by supplying a load element whose loading effect is roughly equivalent to the loading effect of a memory module when no memory module is plugged, and disconnecting the load element internally when a memory module is plugged into the memory slot. Hence, a constant loading is provided to the external signaling line no matter a memory module is plugged or not, and so signal quality and integrity of the signaling line can be maintained.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: February 29, 2000
    Assignee: VIA Technologies Inc.
    Inventors: Jiin Lai, Ching-Fu Chuang