Patents by Inventor Josef Waldman

Josef Waldman 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).

  • Combined imbalance compensation and equalization of a signal
    Patent number: 9118512
    Abstract: Methods, systems, and apparatuses are described for compensating for impairments of a wireless device. In accordance with a disclosed method, a set of equalizer taps for an analog pipeline of the wireless device is determined. A first set of complex filter taps and a second set of complex filter taps are also determined, by modifying the set of equalizer taps according to an estimated imbalance of the analog pipeline of the wireless device. A signal associated with the analog pipeline is processed with a complex filter according to the first set of complex filter taps and the second set of complex filter taps. The processing provides a combined imbalance compensation and equalization of the signal. The complex filter may include a first complex half-filter associated with the first set of complex filter taps and a second complex half-filter associated with the second set of complex filter taps.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 25, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Maxim Gotman, Tal Oved, Josef Waldman
  • COMBINED IMBALANCE COMPENSATION AND EQUALIZATION OF A SIGNAL
    Publication number: 20140254644
    Abstract: Methods, systems, and apparatuses are described for compensating for impairments of a wireless device. In accordance with a disclosed method, a set of equalizer taps for an analog pipeline of the wireless device is determined. A first set of complex filter taps and a second set of complex filter taps are also determined, by modifying the set of equalizer taps according to an estimated imbalance of the analog pipeline of the wireless device. A signal associated with the analog pipeline is processed with a complex filter according to the first set of complex filter taps and the second set of complex filter taps. The processing provides a combined imbalance compensation and equalization of the signal. The complex filter may include a first complex half-filter associated with the first set of complex filter taps and a second complex half-filter associated with the second set of complex filter taps.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 11, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Maxim GOTMAN, Tal Oved, Josef Waldman