Patents by Inventor Sean Pham

Sean Pham 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).

  • Voltage-limited distributed current source for ultra-broadband impedance termination
    Patent number: 6788148
    Abstract: A termination network simultaneously provides a voltage-limited output direct current (dc) bias and termination of a broadband distributed amplifier operating down to an arbitrary low frequency. It is capable of being fabricated in a single Integrated Circuit (IC) chip, without the excess power dissipation associated with biasing through a termination resistor, and without the use of external inductor networks. It also limits the maximum dynamic voltage swing on the outputs of the active gain devices used within the distributed amplifier, so as to increase the reliability of the distributed amplifier under large signal over drive conditions.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: September 7, 2004
    Assignee: Centellax, Inc.
    Inventors: Jerry Orr, Sean Pham, Jeffrey W. Meyer
  • Voltage-limited distributed current source for ultra-broadband impedance termination
    Publication number: 20030184384
    Abstract: A termination network simultaneously provides a voltage-limited output direct current (dc) bias and termination of a broadband distributed amplifier operating down to an arbitrary low frequency. It is capable of being fabricated in a single Integrated Circuit (IC) chip, without the excess power dissipation associated with biasing through a termination resistor, and without the use of external inductor networks. It also limits the maximum dynamic voltage swing on the outputs of the active gain devices used within the distributed amplifier, so as to increase the reliability of the distributed amplifier under large signal over drive conditions.
    Type: Application
    Filed: March 5, 2003
    Publication date: October 2, 2003
    Inventors: Jerry Orr, Sean Pham, Jeffrey W. Meyer