Patents by Inventor Tommy IVARSSON

Tommy IVARSSON 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).

  • Publication number: 20230318639
    Abstract: An error correction component and ?T?M compensation function determine correction factors from a feedback signal to use by digital predistortion to cancel distortion caused by a power amplifier and also determine correction factors that may be used to determine Time of Arrival of an isolation leakage signal. Correction factors may be stored in, or retrieved from, multiple ?T?M functions, which may be part of an ASIC along with the error correction component. The isolation leakage signal may be canceled within the error correction component, resulting in a leakage residual signal that may facilitate determining the ToA of the leakage signal. Cancelling the isolation leakage signal facilitates better sensitivity in detecting the presence of, or ToA of, other signals present at the same port of a circulator from which the isolation leakage signal flows to the error correction component.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: John Bradley Deforge, Tommy Ivarsson, Sewvanda Don
  • Publication number: 20230318722
    Abstract: Technology described herein can gather time domain power data for enabling real-time adjustment of one or more parameters of a radio system. In an embodiment, a system can comprise a processor that is configured to control collection of power data from a radio system, a read circuit communicatively coupled to the processor and controlled by the processor to read, at the radio system, the power data in a time domain, across at least a portion of a downlink chain or an uplink chain of the radio system, along a selected time range that is defined by a specified upper limit of time and a specified lower limit of time, and a memory communicatively coupled to the processor and that receives and stores the power data as stored power data in the time domain from the read circuit.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: John Bradley Deforge, Sewvanda Don, Tommy Ivarsson
  • Patent number: 11711252
    Abstract: Utilizing a fast Fourier transform (FFT) to cancel a non-liner phase response of a digital infinite impulse response (IIR) lowpass filter is presented herein.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: July 25, 2023
    Assignee: DELL PRODUCTS L.P.
    Inventors: Lei Wang, Tommy Ivarsson
  • Publication number: 20230216722
    Abstract: Utilizing a fast Fourier transform (FFT) to cancel a non-liner phase response of a digital infinite impulse response (IIR) lowpass filter is presented herein.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Lei Wang, Tommy Ivarsson
  • Patent number: 10397878
    Abstract: A method and network entity for enabling higher order modulation (HOM) mode support for HOM capable wireless devices. The method includes determining a legacy mode power offset value for HOM mode capable wireless devices in legacy modulation mode and calculating a power headroom value for sending downlink data to the HOM mode capable wireless devices. When the power headroom value exceeds a threshold value, the HOM mode support for the HOM mode capable wireless devices is enabled using the identified legacy mode power offset value. When the power headroom value does not exceed the threshold value, and a HOM mode power offset value is available, the HOM mode power offset value being less than the legacy modulation mode power offset value, the HOM mode support for the HOM mode capable wireless devices is enabled using the HOM mode power offset value.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 27, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ping Yu, Peter Hazy, Tommy Ivarsson, Christien Leblanc, Hong Ren, Eliana Yepez
  • Publication number: 20180324705
    Abstract: A method and network entity for enabling higher order modulation (HOM) mode support for HOM capable wireless devices. The method includes determining a legacy mode power offset value for HOM mode capable wireless devices in legacy modulation mode and calculating a power headroom value for sending downlink data to the HOM mode capable wireless devices. When the power headroom value exceeds a threshold value, the HOM mode support for the HOM mode capable wireless devices is enabled using the identified legacy mode power offset value. When the power headroom value does not exceed the threshold value, and a HOM mode power offset value is available, the HOM mode power offset value being less than the legacy modulation mode power offset value, the HOM mode support for the HOM mode capable wireless devices is enabled using the HOM mode power offset value.
    Type: Application
    Filed: November 20, 2015
    Publication date: November 8, 2018
    Inventors: Ping YU, Peter HAZY, Tommy IVARSSON, Christien LEBLANC, Hong REN, Eliana YEPEZ