Patents by Inventor Angelo Malvasi

Angelo Malvasi 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).

  • Linearization circuits and methods for power amplification
    Patent number: 8159298
    Abstract: Linearization circuits of the invention are used in conjunction with power amplification circuits that comprise a power amplifier core. Exemplary linearization circuits comprise a replica of the power amplifier core. In operation, the linearization produces an envelope signal from an RF signal. The envelope signal is used to control the replica to produce an analog output signal which represents the inverse of the AM to AM distortion of the power amplifier core. The linearization circuit then biases the RF signal with the inverted non-linear signal of the replica to control the power amplifier core. The power amplifier core and the replica thereof can be defined on the same semiconductor die so both respond to process variables similarly.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: April 17, 2012
    Assignee: ACCO Semiconductor, Inc.
    Inventors: Sylvain Quack, Angelo Malvasi
  • LINEARIZATION CIRCUITS AND METHODS FOR POWER AMPLIFICATION
    Publication number: 20110193636
    Abstract: Linearization circuits of the invention are used in conjunction with power amplification circuits that comprise a power amplifier core. Exemplary linearization circuits comprise a replica of the power amplifier core. In operation, the linearization produces an envelope signal from an RF signal. The envelope signal is used to control the replica to produce an analog output signal which represents the inverse of the AM to AM distortion of the power amplifier core. The linearization circuit then biases the RF signal with the inverted non-linear signal of the replica to control the power amplifier core. The power amplifier core and the replica thereof can be defined on the same semiconductor die so both respond to process variables similarly.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Inventors: Sylvain Quack, Angelo Malvasi
  • Linearization circuits and methods for power amplification
    Patent number: 7952431
    Abstract: Linearization circuits of the invention are used in conjunction with power amplification circuits that comprise a power amplifier core. Exemplary linearization circuits comprise a replica of the power amplifier core. In operation, the linearization produces an envelope signal from an RF signal. The envelope signal is used to control the replica to produce an analog output signal which represents the inverse of the AM to AM distortion of the power amplifier core. The linearization circuit then biases the RF signal with the inverted non-linear signal of the replica to control the power amplifier core. The power amplifier core and the replica thereof can be defined on the same semiconductor die so both respond to process variables similarly.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 31, 2011
    Assignee: ACCO Semiconductor, Inc.
    Inventors: Sylvain Quack, Angelo Malvasi
  • Linearization Circuits and Methods for Power Amplification
    Publication number: 20110050345
    Abstract: Linearization circuits of the invention are used in conjunction with power amplification circuits that comprise a power amplifier core. Exemplary linearization circuits comprise a replica of the power amplifier core. In operation, the linearization produces an envelope signal from an RF signal. The envelope signal is used to control the replica to produce an analog output signal which represents the inverse of the AM to AM distortion of the power amplifier core. The linearization circuit then biases the RF signal with the inverted non-linear signal of the replica to control the power amplifier core. The power amplifier core and the replica thereof can be defined on the same semiconductor die so both respond to process variables similarly.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 3, 2011
    Inventors: Sylvain Quack, Angelo Malvasi