Patents by Inventor Chen-Wen Paul Huang

Chen-Wen Paul Huang 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: 8260224
    Abstract: A system and method are provided for reducing dynamic EVM of an integrated circuit power amplifier (PA) used for RF communication. In a multistage PA, the largest amplification stage is biased with a high amplitude current pulse upon receipt of a Tx enable, before receipt of the RF signal data burst. The high amplitude current pulse causes a large portion of the total ICQ budget of the multistage PA to pass through the largest amplification stage causing the entire integrated circuit to rapidly approach steady-state operating conditions. A smoothing bias current is applied to the largest amplification stage after the pulse decays to compensate for transient bias current levels while standard bias circuitry is still approaching steady-state temperature.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: September 4, 2012
    Assignee: SiGe Semiconductor Inc.
    Inventors: Mark Doherty, Lui (Ray) Lam, Chen-Wen Paul Huang, Anthony Quaglietta