Patents by Inventor Björk VIMAR

Björk VIMAR 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).

  • Homodyne receiver calibration
    Patent number: 10142041
    Abstract: There is disclosed mechanisms for calibrating a homodyne receiver in a signal distribution network for time division duplex; a corresponding method is performed by a baseband calibration module. The method comprises acquiring a transmission signal being input to a homodyne transmitter of the signal distribution network; acquiring, from a heterodyne transmitter observation receiver of the signal distribution network, a first received version of the transmission signal; acquiring, from a homodyne receiver of the signal distribution network, a second received version of the transmission signal; and, calibrating the homodyne receiver using a comparison of the first received version of the transmission signal and the second received version of the transmission signal, using the first received version of the transmission signal as a reference signal, and using the transmission signal as a calibration signal.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 27, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ming Li, Youping Su, Björk Vimar, Mats Klingberg, Gerlach Spee
  • HOMODYNE RECEIVER CALIBRATION
    Publication number: 20180234194
    Abstract: There is disclosed mechanisms for calibrating a homodyne receiver in a signal distribution network for time division duplex; a corresponding method is performed by a baseband calibration module. The method comprises acquiring a transmission signal being input to a homodyne transmitter of the signal distribution network; acquiring, from a heterodyne transmitter observation receiver of the signal distribution network, a first received version of the transmission signal; acquiring, from a homodyne receiver of the signal distribution network, a second received version of the transmission signal; and, calibrating the homodyne receiver using a comparison of the first received version of the transmission signal and the second received version of the transmission signal, using the first received version of the transmission signal as a reference signal, and using the transmission signal as a calibration signal.
    Type: Application
    Filed: August 11, 2015
    Publication date: August 16, 2018
    Inventors: Ming LI, Youping SU, Björk VIMAR, Mats KLINGBERG, Gerlach SPEE