Patents by Inventor Kenynmyung Lee

Kenynmyung 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: 6621305
    Abstract: A logic gate circuit and related methods and apparatus exhibit reduced voltage swing and thereby consume less power. The circuit is connected to a plurality of input signals and a clock signal. The circuit produces an output. The circuit comprises a node, a pull-down network and an N-type MOS transistor. The pull-down network is connected to the node, a first reference voltage, the plurality of inputs and the clock signal. The N-type MOS transistor is connected between the node and a second reference voltage. The N-type MOS transistor is also connected to a complement of the clock signal. A method of the invention accepts a complement of a clock signal and pre-charges a node to a voltage less than a power supply voltage, in response to the complement of the clock signal. The method also accepts a plurality of input signals and accepts the clock signal. The method conditionally discharges the node, in response to the clock signal, on the basis of the plurality of input signals.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: September 16, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Osamu Samuel Nakagawa, Norman Chang, Shen Lin, Weize Xie, Kenynmyung Lee