Patents by Inventor David Lisenbe

David Lisenbe 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: 6747487
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element is coupled to the gate of a drive transistor in an output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than that required for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once to smooth voltage response to drive transistor switching.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: June 8, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Brian W. Huber, David Lisenbe
  • Patent number: 6605968
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element, such as a capacitor or transistor, is coupled to the gate of a drive transistor in an output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than that required for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once to smooth voltage response to drive transistor switching. Transistors having relatively longer effective channel lengths may be used as the capacitive elements to allow for additional phasing-in of the voltage support due to signal delay through the longer channels.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: August 12, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Brian W. Huber, David Lisenbe
  • Publication number: 20030001631
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element, such as a capacitor or transistor, is coupled to the gate of a drive transistor in an output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than that required for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once to smooth voltage response to drive transistor switching. Transistors having relatively longer effective channel lengths may be used as the capacitive elements to allow for additional phasing-in of the voltage support due to signal delay through the longer channels.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 2, 2003
    Inventors: Brian W. Huber, David Lisenbe
  • Patent number: 6433593
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element, such as a capacitor or transistor, is coupled to the gate of a drive transistor in an output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than that required for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once to smooth voltage response to drive transistor switching. Transistors having relatively longer effective channel lengths may be used as the capacitive elements to allow for additional phasing-in of the voltage support due to signal delay through the longer channels.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: August 13, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Brian W. Huber, David Lisenbe
  • Publication number: 20020024365
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element, such as a capacitor or transistor, is coupled to the gate of a drive transistor in a output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once to smooth voltage response to drive transistor switching. Transistors having relatively longer effective channel lengths may be used as the capacitive elements to allow for additional phasing-in of the voltage support due to signal delay through the longer channels.
    Type: Application
    Filed: October 15, 2001
    Publication date: February 28, 2002
    Inventors: Brian W. Huber, David Lisenbe
  • Patent number: 6351159
    Abstract: A method and apparatus for supporting a voltage in an output driver circuit and smoothing the response of the voltage to switching operations in the output driver circuit. A capacitive element, such as a capacitor or transistor, is coupled to the gate of a drive transistor in a output driver leg circuit of an output driver and to a switched signal voltage. By coupling the capacitive element to a signal voltage other than ground, a smaller capacitive element is required than for coupling the capacitive element to ground. An embodiment of the invention further includes a plurality of capacitive elements configured such that the voltage support is applied to the gate of the drive transistor in phases rather than all at once. By applying the voltage support in phases, a smoother response to the operation of switching the drive transistor off and on may be realized.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: February 26, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Brian W. Huber, David Lisenbe