Patents by Inventor Peter D. Heldmann

Peter D. Heldmann 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).

  • Joint linear and non-linear cancellation of transmit self-jamming interference
    Patent number: 8767869
    Abstract: Certain aspects of the present disclosure propose an adaptive joint linear and non-linear digital filter that can adaptively estimate and reconstruct cascaded effects of linear and non-linear self-jamming distortions introduced by non-linearities in the transmit and/or receive chains. The proposed digital filter may be used to cancel second-order inter-modulation distortion (IM2) generated in the receive chain and/or harmonic distortion generated in the transmit chain, as well as other distortions introduced by the transmit/and or receive chains.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Roberto Rimini, Peter D. Heldmann, Prasad S. Gudem, Sumit Verma, Joseph Burke