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).
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Patent number: 11777423Abstract: 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: GrantFiled: May 10, 2022Date of Patent: October 3, 2023Assignee: Aptiv Technologies LimitedInventors: Mateusz Romaszko, Grzegorz Wyszynski, Piotr Maj
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Patent number: 11767698Abstract: 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: GrantFiled: November 4, 2021Date of Patent: September 26, 2023Assignee: Aptiv Technologies LimitedInventors: Mateusz Romaszko, Piotr Maj
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Patent number: 11581829Abstract: 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: GrantFiled: November 10, 2021Date of Patent: February 14, 2023Assignee: Aptiv Technologies LimitedInventors: Mateusz Romaszko, Piotr Maj
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Publication number: 20220271691Abstract: 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: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Inventors: Mateusz ROMASZKO, Grzegorz WYSZYNSKI, Piotr MAJ
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Patent number: 11342867Abstract: 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: GrantFiled: April 3, 2020Date of Patent: May 24, 2022Assignee: APTIV TECHNOLOGIES LIMITEDInventors: Mateusz Romaszko, Grzegorz Wyszynski, Piotr Maj
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Publication number: 20220154512Abstract: 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: ApplicationFiled: November 4, 2021Publication date: May 19, 2022Inventors: Mateusz Romaszko, Piotr Maj
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Publication number: 20220158573Abstract: 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: ApplicationFiled: November 10, 2021Publication date: May 19, 2022Inventors: Mateusz Romaszko, Piotr Maj
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Patent number: 11012642Abstract: 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: GrantFiled: September 6, 2018Date of Patent: May 18, 2021Assignee: FERMI RESEARCH ALLIANCE, LLCInventors: 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
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Publication number: 20200328700Abstract: 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: ApplicationFiled: April 3, 2020Publication date: October 15, 2020Inventors: Mateusz ROMASZKO, Grzegorz WYSZYNSKI, Piotr MAJ
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Publication number: 20190089913Abstract: 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: ApplicationFiled: September 6, 2018Publication date: March 21, 2019Inventors: 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
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Patent number: 10075657Abstract: 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: GrantFiled: July 20, 2016Date of Patent: September 11, 2018Assignee: Fermi Research Alliance, LLCInventors: 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
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Publication number: 20170026598Abstract: 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: ApplicationFiled: July 20, 2016Publication date: January 26, 2017Inventors: 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
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Patent number: 9134431Abstract: 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: GrantFiled: December 9, 2010Date of Patent: September 15, 2015Assignee: RIGAKU CORPORATIONInventors: Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
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Patent number: 8866094Abstract: 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: GrantFiled: December 9, 2010Date of Patent: October 21, 2014Assignee: Rigaku CorporationInventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
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Publication number: 20140203182Abstract: 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: ApplicationFiled: December 9, 2010Publication date: July 24, 2014Applicant: RIGAKU CORPORATIONInventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel
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Publication number: 20140131588Abstract: 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: ApplicationFiled: December 9, 2010Publication date: May 15, 2014Applicant: RIGAKU CORPORATIONInventors: Akira Tsukiyama, Takuto Sakumura, Yuji Tsuji, Pawel Grybos, Piotr Maj, Robert Szczygiel