Patents by Inventor Mats K. Lindstrom

Mats K. Lindstrom 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).

  • Efficient, high fidelity transmission of modulation schemes through power-constrained remote relay stations by local transmit predistortion and local receiver feedback
    Publication number: 20030179830
    Abstract: A system for pre-distorting samples derived from modulated data symbols to compensate, at least in part, for non-linear operation of a power amplifier in a power-constrained remote relay station. A symbol mapper maps successive renderings of an input alphabet into successive modulation symbols such as but not limited to 16-QAM or 64-QAM symbols. Pre-distortion logic pre-distorts samples derived from the symbols, and logic incorporates samples derived from the pre-distorted samples into a transmission signal. The transmission signal is amplified and transmitted over a communications link to the remote relay station. The system may employ a feedback loop to measure the amount of residual distortion still present is a signal relayed from the relay station and derived from the transmission signal.
    Type: Application
    Filed: March 25, 2002
    Publication date: September 25, 2003
    Inventors: Donald B. Eidson, Itzhak Gurantz, Mats K. Lindstrom