Patents by Inventor De-Wei Lee

De-Wei Lee 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: 7210052
    Abstract: A method and system for clock synchronization of semiconductor devices. The method uses a master-slave configuration to designate a semiconductor device with the lowest rate clock source as a master device and zero all clock sources inside the semiconductor device in order to output the zeroing lowest rate clock source to slave devices for clock synchronization of all clock sources respectively in the slave devices, and further implements a phase checker in each semiconductor device to ensure clock synchronization inside and between the semiconductor devices, so required clock signals are precisely provided to next internal circuits of the semiconductor devices.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: April 24, 2007
    Assignee: BenQ Corporation
    Inventors: De-Wei Lee, Wu-Han Yang
  • Publication number: 20050246403
    Abstract: An interpolation method and an apparatus are provided for determining an m-th interpolated value, Vm, between a lower boundary, LB, and an upper boundary, UB, with N interpolated intervals. The method includes the following steps (a) calculating a difference value, D, between LB and UB; (b) selecting an integer, Int, wherein (N times Int) is not larger than D and (N times (Int+1)) is larger than D, and taking Int as a whole part of value of each interpolated interval; (c) calculating a remainder value, R, as difference between D and (N times Int); (d) selecting an index value, Ix, based on R, and taking Ix as a tenth digit of value of each interpolated interval; and (e) selecting a carry number, Km, and an adjustment number, Rm, based on Ix, and (f) generating Vm based on Int, Km, and Rm.
    Type: Application
    Filed: April 20, 2005
    Publication date: November 3, 2005
    Inventor: De-Wei Lee
  • Publication number: 20040146071
    Abstract: A method and system for clock synchronization of semiconductor devices. The method uses a master-slave configuration to designate a semiconductor device with the lowest rate clock source as a master device and zero all clock sources inside the semiconductor device in order to output the zeroing lowest rate clock source to slave devices for clock synchronization of all clock sources respectively in the slave devices, and further implements a phase checker in each semiconductor device to ensure clock synchronization inside and between the semiconductor devices, so required clock signals are precisely provided to next internal circuits of the semiconductor devices.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 29, 2004
    Applicant: BENQ CORPORATION
    Inventors: De-Wei Lee, Wu-Han Yang