Patents by Inventor Quan Nguyen

Quan Nguyen 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).

  • Circuitry and method for latching information
    Patent number: 6002285
    Abstract: An output signal is output to a selected one of first and second output nodes in response to an event in which a control node transitions from a first logic state to a second logic state. The selected one of the first and second output nodes is selected in response to a logic state of an input node during the event. A minimum setup time for the logic state of the input node to be stable before the control node transitions to the second logic state is shorter than a minimum time for inverting the logic state of the input node.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: December 14, 1999
    Assignee: International Business Machines Corporation
    Inventors: John Stephen Muhich, Quan Nguyen
  • Method and apparatus for reducing the number of rename registers in a processor supporting out-of-order execution
    Patent number: 5974524
    Abstract: According to one aspect of the invention, a method is provided for maintaining the state of a processor having a plurality of physical registers and a rename register map which stores rename pairs that associate architected and physical registers, the rename register map having a plurality of entries which are associated with the physical registers, individual entries having an architected register field, an architected status bit and a history status bit.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: October 26, 1999
    Assignee: International Business Machines Corporation
    Inventors: Hoichi Cheong, Paul Joseph Jordan, Quan Nguyen, Hung Qui Le
  • System and method for adjusting a voltage
    Patent number: 5900740
    Abstract: First current is conducted through a first path to adjust a voltage at a node toward a predetermined level in response to the voltage being within a first subrange of voltages. Second current is conducted through a second path to adjust the voltage at the node toward the predetermined level in response to the voltage being within a second subrange of voltages.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: May 4, 1999
    Assignee: International Business Machines Corporation
    Inventors: Quan Nguyen, Ivan Vo