Patents by Inventor Lancelot Y. Kwong

Lancelot Y. Kwong 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: 8324932
    Abstract: A static complementary transistor type logic gate circuit includes a plurality of input terminals for receiving a corresponding plurality of input signals, and an output terminal. The logic gate circuit further includes a first plurality of transistors of one conductivity type, arranged to form a plurality of pullup paths for selectively connecting the output terminal, through one or more intermediate nodes, to a positive supply voltage based on the plurality of input signals; and a second plurality of transistors of the complementary conductivity type, arranged to form a plurality of pulldown paths for selectively connecting the output terminal, through one or more intermediate nodes, to a negative supply voltage based on the plurality of input signals. A precharge device is configured to selectively charge an intermediate node to the far-side supply voltage when the intermediate node is disconnected from the near-side supply voltage and disconnected from the output terminal.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 4, 2012
    Assignee: Oracle International Corporation
    Inventors: Jin-Uk Shin, Lancelot Y. Kwong, Gaurav Shrivastav
  • Publication number: 20120126852
    Abstract: A static complementary transistor type logic gate circuit includes a plurality of input terminals for receiving a corresponding plurality of input signals, and an output terminal. The logic gate circuit further includes a first plurality of transistors of one conductivity type, arranged to form a plurality of pullup paths for selectively connecting the output terminal, through one or more intermediate nodes, to a positive supply voltage based on the plurality of input signals; and a second plurality of transistors of the complementary conductivity type, arranged to form a plurality of pulldown paths for selectively connecting the output terminal, through one or more intermediate nodes, to a negative supply voltage based on the plurality of input signals. A precharge device is configured to selectively charge an intermediate node to the far-side supply voltage when the intermediate node is disconnected from the near-side supply voltage and disconnected from the output terminal.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 24, 2012
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Jin-Uk Shin, Lancelot Y. Kwong, Gaurav Shrivastav
  • Publication number: 20090213641
    Abstract: Data storage cells of a static random access memory array are selectively provided with back-bias voltages to reduce current leakage during an active mode of operation. Circuitry electrically connected with the array receives control signals and provides the back-bias voltages to certain idle data storage cells of the array based on the control signals.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Inventors: Heechoul Park, Song Chin Kim, Lancelot Y. Kwong, Wilson Fai Chin