Patents by Inventor Wen-Wel Chiu

Wen-Wel Chiu 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).

  • Internal offset-canceled phase locked loop-based deskew buffer
    Patent number: 6346838
    Abstract: A phase lock loop-based deskew buffer circuit includes a fixed delay element to delay a feedback signal and to generate a first signal from the feedback signal. A delay locked loop (DLL) generates a second signal from a reference signal and compares a phase of the feedback signal with a phase of the reference signal. The DLL is capable of keeping a relative timing of the first and second signals constant while adjusting the feedback signal to be in phase with the reference signal. This results in loop stability and cancellation of internal offset.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: February 12, 2002
    Assignee: Taiwan Semiconductor Manufacturing Corporation
    Inventors: Chorng-Sii Hwang, Wen-Wel Chiu