Patents by Inventor Alan Eah Loon Chuah

Alan Eah Loon Chuah 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).

  • Oxide overstress tolerant crystal oscillator
    Patent number: 7471163
    Abstract: An oscillator circuit includes a plurality of transistors that can withstand relatively low gate-to-source and gate-to-drain voltages. The oscillator circuit interfaces with an oscillator that oscillates at a relatively high voltage. The oscillator circuit includes a first set of transistors coupled to an input voltage and an output voltage of the oscillator, the input voltage oscillating in a range exceeding a tolerance voltage level of each transistor of the first set of transistors. The oscillator circuit also includes a second set of transistors to limit a voltage level in the first set of transistors. The oscillator circuit further includes a third set of transistors to provide a constant current path for the second set of transistors, independent of a switching state of each transistor of the first set of transistors.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 30, 2008
    Assignee: Intel Corporation
    Inventors: Alan Eah Loon Chuah, Syn Pui Law
  • Oxide overstress tolerant crystal oscillator
    Publication number: 20080079506
    Abstract: An oscillator circuit includes a plurality of transistors that can withstand relatively low gate-to-source and gate-to-drain voltages. The oscillator circuit interfaces with an oscillator that oscillates at a relatively high voltage. The oscillator circuit includes a first set of transistors coupled to an input voltage and an output voltage of the oscillator, the input voltage oscillating in a range exceeding a tolerance voltage level of each transistor of the first set of transistors. The oscillator circuit also includes a second set of transistors to limit a voltage level in the first set of transistors. The oscillator circuit further includes a third set of transistors to provide a constant current path for the second set of transistors, independent of a switching state of each transistor of the first set of transistors.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventors: Alan Eah Loon Chuah, Syn Pui Law