Patents by Inventor Piotr Maj

Piotr Maj 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).

  • Patent number: 11777423
    Abstract: A method for determining a movement of a rotor of an electric motor, comprises supplying a drive signal to a drive coil of the electric motor, sensing a coil current of the drive coil, detecting current ripples of the sensed coil current caused by the rotor of the electric motor crossing ripple generating positions, inferring the movement of the rotor from the detected ripples, braking the motor by reducing the drive signal supplied to the drive coil from an initial signal value to zero according to a braking curve specifying a non-zero fall time during which the drive signal is reduced from the initial signal value to zero. The braking curve is adapted so that the rotor does not cross a ripple generating position after the drive signal has been reduced to zero.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: October 3, 2023
    Assignee: Aptiv Technologies Limited
    Inventors: Mateusz Romaszko, Grzegorz Wyszynski, Piotr Maj
  • Patent number: 11767698
    Abstract: The pinch detector includes a first portion that, in a first situation in which the member is being closed in a first closing movement but is stopped in an intermediate position not completely closed, obtains a reference value of a measured physical quantity of the motor, when braking the motor is ordered to stop the member, said reference value representing the physical quantity of the motor just before motor braking; a second portion that, in a second situation following the first situation and in which the member is moved in a second closing movement from said intermediate position not completely closed, compares current values of the measured physical quantity of the motor to a threshold value depending on said reference value in order to detect a pinch at closing member based on a comparison result.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: September 26, 2023
    Assignee: Aptiv Technologies Limited
    Inventors: Mateusz Romaszko, Piotr Maj
  • Patent number: 11581829
    Abstract: The pinch detector is suitable to detect a pinch at a closing member actuated by a motor equipped with a measuring circuit to measure a motor current. It includes a first portion that, when the motor starts closing the member, obtains a reference value of the motor current measured at the end of a blind time period having a predetermined duration from the moment the motor starts to close the member; a second portion that compares current values of the measured motor current to a threshold value depending on said reference value, during a detection time period, following the blind time period and preceding a steady state time period of the motor, in order to detect a pinch at the closing member based on a comparison result.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: February 14, 2023
    Assignee: Aptiv Technologies Limited
    Inventors: Mateusz Romaszko, Piotr Maj
  • Publication number: 20220271691
    Abstract: A method for determining a movement of a rotor of an electric motor, comprises supplying a drive signal to a drive coil of the electric motor, sensing a coil current of the drive coil, detecting current ripples of the sensed coil current caused by the rotor of the electric motor crossing ripple generating positions, inferring the movement of the rotor from the detected ripples, braking the motor by reducing the drive signal supplied to the drive coil from an initial signal value to zero according to a braking curve specifying a non-zero fall time during which the drive signal is reduced from the initial signal value to zero. The braking curve is adapted so that the rotor does not cross a ripple generating position after the drive signal has been reduced to zero.
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Inventors: Mateusz ROMASZKO, Grzegorz WYSZYNSKI, Piotr MAJ
  • Patent number: 11342867
    Abstract: A method for determining a movement of a rotor of an electric motor, comprises supplying a drive signal to a drive coil of the electric motor, sensing a coil current of the drive coil, detecting current ripples of the sensed coil current caused by the rotor of the electric motor crossing ripple generating positions, inferring the movement of the rotor from the detected ripples, braking the motor by reducing the drive signal supplied to the drive coil from an initial signal value to zero according to a braking curve specifying a non-zero fall time during which the drive signal is reduced from the initial signal value to zero. The braking curve is adapted so that the rotor does not cross a ripple generating position after the drive signal has been reduced to zero.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 24, 2022
    Assignee: APTIV TECHNOLOGIES LIMITED
    Inventors: Mateusz Romaszko, Grzegorz Wyszynski, Piotr Maj
  • Publication number: 20220154512
    Abstract: The pinch detector includes a first portion that, in a first situation in which the member is being closed in a first closing movement but is stopped in an intermediate position not completely closed, obtains a reference value of a measured physical quantity of the motor, when braking the motor is ordered to stop the member, said reference value representing the physical quantity of the motor just before motor braking; a second portion that, in a second situation following the first situation and in which the member is moved in a second closing movement from said intermediate position not completely closed, compares current values of the measured physical quantity of the motor to a threshold value depending on said reference value in order to detect a pinch at closing member based on a comparison result.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 19, 2022
    Inventors: Mateusz Romaszko, Piotr Maj
  • Publication number: 20220158573
    Abstract: The pinch detector is suitable to detect a pinch at a closing member actuated by a motor equipped with a measuring circuit to measure a motor current. It includes a first portion that, when the motor starts closing the member, obtains a reference value of the motor current measured at the end of a blind time period having a predetermined duration from the moment the motor starts to close the member; a second portion that compares current values of the measured motor current to a threshold value depending on said reference value, during a detection time period, following the blind time period and preceding a steady state time period of the motor, in order to detect a pinch at the closing member based on a comparison result.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 19, 2022
    Inventors: Mateusz Romaszko, Piotr Maj
  • Patent number: 11012642
    Abstract: A detecting apparatus includes a multi-tier 3D integrated ASIC comprising one or more analog tiers and one or more digital tiers, and a sensor bonded to the multi-tier 3D integrated ASIC. The detecting apparatus includes an electrical substrate and a group of FPGAs or custom data management ASICs. The detecting apparatus also includes a thermal management system, a power distribution system and one or more connectors to transfer data to a data acquisition system configured for radiation spectroscopy or imaging with zero suppressed or full frame readout.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 18, 2021
    Assignee: FERMI RESEARCH ALLIANCE, LLC
    Inventors: Farah Fahim, Grzegorz W. Deptuch, Pawel Grybos, Robert Szczygiel, Piotr Maj, Piotr Kmon, David Peter Siddons, Joseph Mead, Abdul Khader Rumaiz, Robert Kent Bradford, John Thomas Weizeorick, III
  • Publication number: 20200328700
    Abstract: A method for determining a movement of a rotor of an electric motor, comprises supplying a drive signal to a drive coil of the electric motor, sensing a coil current of the drive coil, detecting current ripples of the sensed coil current caused by the rotor of the electric motor crossing ripple generating positions, inferring the movement of the rotor from the detected ripples, braking the motor by reducing the drive signal supplied to the drive coil from an initial signal value to zero according to a braking curve specifying a non-zero fall time during which the drive signal is reduced from the initial signal value to zero. The braking curve is adapted so that the rotor does not cross a ripple generating position after the drive signal has been reduced to zero.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 15, 2020
    Inventors: Mateusz ROMASZKO, Grzegorz WYSZYNSKI, Piotr MAJ
  • Publication number: 20190089913
    Abstract: A detecting apparatus includes a multi-tier 3D integrated ASIC comprising one or more analog tiers and one or more digital tiers, and a sensor bonded to the multi-tier 3D integrated ASIC. The detecting apparatus includes an electrical substrate and a group of FPGAs or custom data management ASICs. The detecting apparatus also includes a thermal management system, a power distribution system and one or more connectors to transfer data to a data acquisition system configured for radiation spectroscopy or imaging with zero suppressed or full frame readout.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 21, 2019
    Inventors: Farah Fahim, Grzegorz W. Deptuch, Pawel Grybos, Robert Szczygiel, Piotr Maj, Piotr Kmon, David Peter Siddons, Joseph Mead, Abdul Khader Rumaiz, Robert Kent Bradford, John Thomas Weizeorick, III
  • Patent number: 10075657
    Abstract: A detecting apparatus includes a multi-tier 3D integrated ASIC comprising one or more analog tiers and one or more digital tiers, and a sensor bonded to the multi-tier 3D integrated ASIC. The detecting apparatus includes an electrical substrate and a group of FPGAs or custom data management ASICs. The detecting apparatus also includes a thermal management system, a power distribution system and one or more connectors to transfer data to a data acquisition system configured for radiation spectroscopy or imaging with zero suppressed or full frame readout.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 11, 2018
    Assignee: Fermi Research Alliance, LLC
    Inventors: Farah Fahim, Grzegorz W. Deptuch, Pawel Grybos, Robert Szczygiel, Piotr Maj, Piotr Kmon, David Peter Siddons, Joseph Mead, Abdul Khader Rumaiz, Robert Kent Bradford, John Thomas Weizeorick, III
  • Publication number: 20170026598
    Abstract: A detecting apparatus includes a multi-tier 3D integrated ASIC comprising one or more analog tiers and one or more digital tiers, and a sensor bonded to the multi-tier 3D integrated ASIC. The detecting apparatus includes an electrical substrate and a group of FPGAs or custom data management ASICs. The detecting apparatus also includes a thermal management system, a power distribution system and one or more connectors to transfer data to a data acquisition system configured for radiation spectroscopy or imaging with zero suppressed or full frame readout.
    Type: Application
    Filed: July 20, 2016
    Publication date: January 26, 2017
    Inventors: Farah Fahim, Grzegorz W. Deptuch, Pawel Grybos, Robert Szczygiel, Piotr Maj, Piotr Kmon, David Peter Siddons, Joseph Mead, Abdul Khader Rumaiz, Robert Kent Bradford, John Thomas Weizeorick, III
  • Patent number: 9134431
    Abstract: A radiation detector 100 has a plurality of single-photon-counting imaging cells, including an imaging cell 1 configured to generate a detection signal in accordance with the intensity of radiation, a digitization circuit 5 configured to digitize the detection signal, a data read structure 11 configured to count the digitized detection signal and to keep the result as a data bit, and a send-out register 13 configured to control the input of a predetermined data bit output from the data read structure 11 by a data shift in accordance with a first clock Pck, to keep the input data bit as a result of the control, and to send out the kept data bit by a data shift in accordance with a second clock Sck.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: September 15, 2015
    Assignee: RIGAKU CORPORATION
    Inventors: Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
  • Patent number: 8866094
    Abstract: There is provided a radiation detector that appropriately corrects an offset within a minute read cell without increasing area while achieving high-speed measurement at a high counting rate. A radiation detector 100 having a plurality of single-photon-counting imaging cells includes, for each imaging cell, a photodiode 3 which is applied with a reverse bias voltage and generates a current signal in response to incidence of radiation, a previous-stage DA converter d1 configured to correct an input signal based on the current signal generated by the photodiode 3, an amplifier k2 configured to amplify the signal corrected by the previous-stage DA converter d1, a subsequent-stage DA converter d2 configured to correct a charge signal amplified by the amplifier k2, a wave height discriminator 9 configured to discriminate output signals based on the signal corrected by the subsequent-stage DA converter d2, and a counter 10 configured to count the discriminated signals.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 21, 2014
    Assignee: Rigaku Corporation
    Inventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
  • Publication number: 20140203182
    Abstract: There is provided a radiation detector that appropriately corrects an offset within a minute read cell without increasing area while achieving high-speed measurement at a high counting rate. A radiation detector 100 having a plurality of single-photon-counting imaging cells includes, for each imaging cell, a photodiode 3 which is applied with a reverse bias voltage and generates a current signal in response to incidence of radiation, a previous-stage DA converter d1 configured to correct an input signal based on the current signal generated by the photodiode 3, an amplifier k2 configured to amplify the signal corrected by the previous-stage DA converter d1, a subsequent-stage DA converter d2 configured to correct a charge signal amplified by the amplifier k2, a wave height discriminator 9 configured to discriminate output signals based on the signal corrected by the subsequent-stage DA converter d2, and a counter 10 configured to count the discriminated signals.
    Type: Application
    Filed: December 9, 2010
    Publication date: July 24, 2014
    Applicant: RIGAKU CORPORATION
    Inventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
  • Publication number: 20140131588
    Abstract: There is provided a radiation detector which shortens the data read time to outside in accordance with the necessity to increase the frame rate. A radiation detector 100 having a plurality of single-photon-counting imaging cells, including an imaging cell 1 configured to generate a detection signal in accordance with the intensity of radiation, a digitization circuit 5 configured to digitize the detection signal, a data read structure 11 configured to count the digitized detection signal and to keep the result as a data bit, and a send-out register 13 configured to control the input of a predetermined data bit output from the data read structure 11 by a data shift in accordance with a first clock Pck, to keep the input data bit as a result of the control, and to send out the kept data bit by a data shift in accordance with a second clock Sck.
    Type: Application
    Filed: December 9, 2010
    Publication date: May 15, 2014
    Applicant: RIGAKU CORPORATION
    Inventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel