Patents by Inventor Stefan Brennsteiner

Stefan Brennsteiner 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).

  • Phase alignment of a controller clock to a field
    Patent number: 11099598
    Abstract: Disclosed as a clock alignment module for a near field communication, NFC, controller operable in active load modulation, ALM, card mode, the module being operable during a transmit mode comprising transmit bursts and comprising: an input for receiving a field clock signal (CLK_FIELD); an output for outputting a local controller clock signal (CLK_FB); a transmit envelop unit configured to determine whether a time since an end of a latest transmit burst exceeds a threshold, Tdelay; and a phase locked loop, PLL, configured to selectively lock the phase of the local controller clock signal to the phase of the field clock signal, in response to the time exceeding the threshold and a next transmit burst not having started. Associated NFC controllers, integrated circuits and methods are also disclosed.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 24, 2021
    Assignee: NXP B.V.
    Inventors: Sebastien Prouet, Stefan Brennsteiner
  • PHASE ALIGNMENT OF A CONTROLLER CLOCK TO A FIELD
    Publication number: 20200278716
    Abstract: Disclosed as a clock alignment module for a near field communication, NFC, controller operable in active load modulation, ALM, card mode, the module being operable during a transmit mode comprising transmit bursts and comprising: an input for receiving a field clock signal (CLK_FIELD); an output for outputting a local controller clock signal (CLK_FB); a transmit envelop unit configured to determine whether a time since an end of a latest transmit burst exceeds a threshold, Tdelay; and a phase locked loop, PLL, configured to selectively lock the phase of the local controller clock signal to the phase of the field clock signal, in response to the time exceeding the threshold and a next transmit burst not having started. Associated NFC controllers, integrated circuits and methods are also disclosed.
    Type: Application
    Filed: February 21, 2020
    Publication date: September 3, 2020
    Inventors: Sebastien PROUET, Stefan Brennsteiner