Patents by Inventor Guoqing Ning

Guoqing Ning 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: 10871796
    Abstract: In some examples, a system includes a clock source, a clock distribution network, and a plurality of clock generators. The clock source is configured to generate a global clocking signal. The clock distribution network is configured to fan out the global clocking signal to a plurality of loads. The plurality of clock generators is configured to receive the global clocking signal through the clock distribution network. Each clock generator of the plurality of clock generators is configured to generate a related clocking signal to the global clocking signal from the received global clocking signal. Each clock generator of the plurality of clock generators maybe configured to supply the global clocking signal or the related clocking signal to its respective load of the plurality of loads.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: December 22, 2020
    Assignee: XILINX, INC.
    Inventors: Brian C. Gaide, Chiao K. Hwang, Guoqing Ning, Richard W. Swanson, Wayne E. Wennekamp
  • Patent number: 7772891
    Abstract: Apparatuses and methods are provided for a self-timed dynamic sense amplifier flop circuit, wherein a pulse generating circuit may be adapted to generate at least a first logic signal based, at least in part, on a first evaluation node signal, and a discharge path circuit comprising at least a first transistor within a first stack of transistors may be operatively responsive to the first timing signal.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 10, 2010
    Assignee: Nvidia Corporation
    Inventors: Ge Yang, Guoqing Ning, Beibei Ren, Hwong-Kwo (Hank) Lin, Charles Chew-Yuen Young
  • Patent number: 7772885
    Abstract: One embodiment of the present invention sets forth a technique for shifting the voltage level of signals from the high voltage domain to a low voltage domain, where VDD_IO is the supply voltage of the high voltage domain and VDD_Logic is the supply voltage of the low voltage domain. A level shifting circuit using a combination of I/O and logic transistors avoids exceeding a maximum tolerable voltage across the gate and source of any of the transistors. The level shifting circuit operates includes a reference voltage circuit that is independent of VDD_IO, so the same level shifting circuit may be used for various VDD_IO voltages. Additionally, the voltage level shifting circuit is not sensitive to scaling of VDD_Logic and operates properly when VDD_Logic is reduced due to shrinking silicon process technology and/or is reduced for a low power application.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: August 10, 2010
    Assignee: NVIDIA Corporation
    Inventors: Hwong-Kwo Lin, Ge Yang, Guoqing Ning, Charles Chew-Yuen Young