Patents by Inventor Oleksandr Pirogov
Oleksandr Pirogov 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: 11972078Abstract: A capacitance sensing device includes a transmit (TX) generator for generating a sequence of receive (RX) signals by applying each TX signal pattern in a sequence of TX signal patterns to a set of sensor electrodes. For each TX signal pattern in the sequence of TX signal patterns, and for each subset of three or more contiguous sensor electrodes of the set of sensor electrodes, the TX generator applies to the subset one of a first excitation signal and a second excitation signal. The plurality of subsets includes at least half of the sensor electrodes in the set of sensor electrodes. The capacitance sensing device also includes a sequencer circuit coupled with the TX generator. For each TX signal pattern in the sequence of TX signal patterns, the sequencer circuit determines a next subsequent TX signal pattern in the sequence based on a circular rotation of the TX signal pattern. The capacitance sensing device also includes a processing block coupled with the TX generator.Type: GrantFiled: June 22, 2018Date of Patent: April 30, 2024Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Volodymyr Bihday, Ruslan Omelchuk, Oleksandr Pirogov, Vasyl Mandziy, Roman Ogirko, Ihor Musijchuk, Andriy Maharyta, Igor Kolych, Igor Kravets
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Patent number: 11928284Abstract: Systems, methods, and devices detect defects in touch panels. Methods include scanning, using a designated integration window, a plurality of electrodes of a sensing device to obtain a plurality of measurements and determining a plurality of variance values for the plurality of electrodes based on the plurality of measurements, the plurality of variance values identifying variances in the plurality of measurements between adjacent sense locations of the sensing device. Methods also include determining if a defect is present in the sensing device based, at least in part, on a comparison of the plurality of difference values with the plurality of threshold values.Type: GrantFiled: March 10, 2022Date of Patent: March 12, 2024Assignee: Cypress Semiconductor CorporationInventors: Vadym Grygorenko, Viktor Kremin, Oleksii Bukhtii, Oleksandr Pirogov, Jens Weber, Taras Kuzo
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Patent number: 11899882Abstract: Apparatuses and methods of quadrature modulation and compensation are described. One touch controller includes a receiver sensing channel to measure a sense signal and generate at least four samples per one period of the sense signal. The touch controller includes quadrature demodulation logic to determine phase information of the sense signal using the at least four samples per one period of the sense signal and processing logic to execute a compensation algorithm to compensate for a phase mismatch of the touch controller based on the phase information.Type: GrantFiled: November 19, 2021Date of Patent: February 13, 2024Assignee: Cypress Semiconductor CorporationInventors: Oleksandr Pirogov, Viktor Kremin, Jens Weber
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Patent number: 11868565Abstract: Systems, methods, and devices improve the sensitivity of capacitive sensors. Devices may include an attenuator configured to receive an input from at least one sense electrode of a capacitive sensing device. The attenuator may be included in a sensing channel of a capacitive sensor. Devices may further include a signal generator coupled to an input of the attenuator. The signal generator may include one or more processors configured to generate a sinusoidal signal based, at least in part, on one or more noise characteristics of a scan sequence associated with one or more transmit electrodes of the capacitive sensing device, and provide the sinusoidal signal to the input of the attenuator.Type: GrantFiled: April 15, 2022Date of Patent: January 9, 2024Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Patent number: 11768564Abstract: An apparatus includes a global baseliner circuit coupled with sensing channels of a sensing device. The global baseliner circuit has a signal generator to generate a rectified sinusoidal signal and a square wave having a frequency matching that of an excitation sinusoidal signal, and is to use the square wave to modulate the excitation sinusoidal signal provided at an output of the global baseliner circuit. A channel baseliner circuit is coupled between the global baseliner circuit and a sensing channel and that includes a switched capacitor coupled between the output of the global baseliner circuit and the sensing channel; a sigma-delta modulator coupled with the signal generator and to generate, from the rectified sinusoidal signal, a density-modulated bit stream; and a pair of AND gates to use the density-modulated bit stream and non-overlapping clock signals to generate outputs including density-modulated clock signals sent to switches of the switched capacitor.Type: GrantFiled: March 16, 2021Date of Patent: September 26, 2023Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Publication number: 20230289012Abstract: Systems, methods, and devices detect defects in touch panels. Methods include scanning, using a designated integration window, a plurality of electrodes of a sensing device to obtain a plurality of measurements and determining a plurality of variance values for the plurality of electrodes based on the plurality of measurements, the plurality of variance values identifying variances in the plurality of measurements between adjacent sense locations of the sensing device. Methods also include determining if a defect is present in the sensing device based, at least in part, on a comparison of the plurality of difference values with the plurality of threshold values.Type: ApplicationFiled: March 10, 2022Publication date: September 14, 2023Applicant: Cypress Semiconductor CorporationInventors: Vadym Grygorenko, Viktor Kremin, Oleksii Bukhtii, Oleksandr Pirogov, Jens Weber, Taras Kuzo
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Publication number: 20230280862Abstract: Systems, methods, and devices improve the sensitivity of capacitive sensors. Devices may include an attenuator configured to receive an input from at least one sense electrode of a capacitive sensing device. The attenuator may be included in a sensing channel of a capacitive sensor. Devices may further include a signal generator coupled to an input of the attenuator. The signal generator may include one or more processors configured to generate a sinusoidal signal based, at least in part, on one or more noise characteristics of a scan sequence associated with one or more transmit electrodes of the capacitive sensing device, and provide the sinusoidal signal to the input of the attenuator.Type: ApplicationFiled: April 15, 2022Publication date: September 7, 2023Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Patent number: 11531435Abstract: Technology directed to low-emissions touch controller in in-cell touch display systems is described. One in-cell touch controller includes a signal generator circuit that is configured to generate a sense signal according to a sensing function, the sense signal including a windowed sinusoidal waveform. The controller generates a transition signal to transition the in-cell touch display between a display function and the sensing function. The controller drives the sense signal and the transition signal on common voltage (VCOM) layer of electrodes during a touch scanning interval. During a display function interval an integrated display driver is configured to drive a first signal on the VCOM layer of electrodes during a display function interval.Type: GrantFiled: January 14, 2022Date of Patent: December 20, 2022Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Jens Weber, Yarsolav Lek, Daniel O'Keeffe, Brendan Lawton, Khosrov D Sadeghipour, Gaurav Panchanan, Andrew Kinane
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Publication number: 20220197435Abstract: Technology directed to low-emissions touch controller in in-cell touch display systems is described. One in-cell touch controller includes a signal generator circuit that is configured to generate a sense signal according to a sensing function, the sense signal including a windowed sinusoidal waveform. The controller generates a transition signal to transition the in-cell touch display between a display function and the sensing function. The controller drives the sense signal and the transition signal on common voltage (VCOM) layer of electrodes during a touch scanning interval. During a display function interval an integrated display driver is configured to drive a first signal on the VCOM layer of electrodes during a display function interval.Type: ApplicationFiled: January 14, 2022Publication date: June 23, 2022Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Jens Weber, Yarsolav Lek, Daniel O'Keeffe, Brendan Lawton, Khosrov D. Sadeghipour, Gaurav Panchanan, Andrew Kinane
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Patent number: 11307712Abstract: Systems, methods, and devices improve the sensitivity of capacitive sensors. Devices may include an attenuator configured to receive an input from at least one sense electrode of a capacitive sensing device. The attenuator may be included in a sensing channel of a capacitive sensor. Devices may further include a signal generator coupled to an input of the attenuator. The signal generator may include one or more processors configured to generate a sinusoidal signal based, at least in part, on one or more noise characteristics of a scan sequence associated with one or more transmit electrodes of the capacitive sensing device, and provide the sinusoidal signal to the input of the attenuator.Type: GrantFiled: December 18, 2020Date of Patent: April 19, 2022Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Patent number: 11226706Abstract: Technology directed to low-emissions touch controller in in-cell touch display systems is described. One in-cell touch controller includes a signal generator circuit that is configured to generate a sense signal according to a sensing function, the sense signal including a windowed sinusoidal waveform. The controller generates a transition signal to transition the in-cell touch display between a display function and the sensing function. The controller drives the sense signal and the transition signal on common voltage (VCOM) layer of electrodes during a touch scanning interval. During a display function interval an integrated display driver is configured to drive a first signal on the VCOM layer of electrodes during a display function interval.Type: GrantFiled: September 18, 2020Date of Patent: January 18, 2022Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Jens Weber, Yarsolav Lek, Daniel O'Keeffe, Brendan Lawton, Khosrov D Sadeghipour, Gaurav Panchanan, Andrew Kinane
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Publication number: 20210373683Abstract: An apparatus includes a global baseliner circuit coupled with sensing channels of a sensing device. The global baseliner circuit has a signal generator to generate a rectified sinusoidal signal and a square wave having a frequency matching that of an excitation sinusoidal signal, and is to use the square wave to modulate the excitation sinusoidal signal provided at an output of the global baseliner circuit. A channel baseliner circuit is coupled between the global baseliner circuit and a sensing channel and that includes a switched capacitor coupled between the output of the global baseliner circuit and the sensing channel; a sigma-delta modulator coupled with the signal generator and to generate, from the rectified sinusoidal signal, a density-modulated bit stream; and a pair of AND gates to use the density-modulated bit stream and non-overlapping clock signals to generate outputs including density-modulated clock signals sent to switches of the switched capacitor.Type: ApplicationFiled: March 16, 2021Publication date: December 2, 2021Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Publication number: 20210311604Abstract: Systems, methods, and devices improve the sensitivity of capacitive sensors. Devices may include an attenuator configured to receive an input from at least one sense electrode of a capacitive sensing device. The attenuator may be included in a sensing channel of a capacitive sensor. Devices may further include a signal generator coupled to an input of the attenuator. The signal generator may include one or more processors configured to generate a sinusoidal signal based, at least in part, on one or more noise characteristics of a scan sequence associated with one or more transmit electrodes of the capacitive sensing device, and provide the sinusoidal signal to the input of the attenuator.Type: ApplicationFiled: December 18, 2020Publication date: October 7, 2021Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Vadym Grygorenko, Jens Weber
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Publication number: 20210255727Abstract: Described herein are devices, methods, and systems that detect the presence of faults such as shorts and/or opens within a touch sensitive display panel. In one embodiment, a touch screen controller is disclosed, the touch screen controller comprising one or more receive channels, where each receive channel is configured to scan a corresponding group of sensors of a plurality of sensors. The touch screen controller may also comprise a plurality of multiplexers, each multiplexer configured to selectively couple a respective sensor of the plurality of sensors to a corresponding receive channel or a reference voltage. The touch screen controller may further comprise a processing device configured to detect one or more shorts based on DC current sensing. The touch screen controller may also detect one or more opens based on AC current sensing of each of the one or more receive channels.Type: ApplicationFiled: September 21, 2020Publication date: August 19, 2021Applicant: Cypress Semiconductor CorporationInventors: Oleksandr Pirogov, Viktor Kremin, Vadym Grygorenko, Jens Weber
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Publication number: 20210216168Abstract: Technology directed to low-emissions touch controller in in-cell touch display systems is described. One in-cell touch controller includes a signal generator circuit that is configured to generate a sense signal according to a sensing function, the sense signal including a windowed sinusoidal waveform. The controller generates a transition signal to transition the in-cell touch display between a display function and the sensing function. The controller drives the sense signal and the transition signal on common voltage (VCOM) layer of electrodes during a touch scanning interval. During a display function interval an integrated display driver is configured to drive a first signal on the VCOM layer of electrodes during a display function interval.Type: ApplicationFiled: September 18, 2020Publication date: July 15, 2021Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Oleksandr Pirogov, Jens Weber, Yarsolav Lek, Daniel O'Keeffe, Brendan Lawton, Khosrov D. Sadeghipour, Gaurav Panchanan, Andrew Kinane
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Patent number: 10599911Abstract: A method for detecting fingerprint spoof objects includes detecting a presence of the object at a fingerprint sensor and, in response to detecting the presence of the object, measuring a set of physical properties of the object based on one or more signals from a set of electrodes of the fingerprint sensor. The set of physical properties includes at least one of a subdermal compliance of the object and a surface adhesiveness of the object. The method further includes distinguishing the object as an actual finger or a spoof based on the one or more physical properties.Type: GrantFiled: March 22, 2017Date of Patent: March 24, 2020Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Viktor Kremin, Oleksandr Rohozin, Oleksandr Pirogov, Mykhaylo Krekhovetskyy, Volodymyr Bihday, Roman Ogirko
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Publication number: 20190179446Abstract: A capacitance sensing device includes a transmit (TX) generator for generating a sequence of receive (RX) signals by applying each TX signal pattern in a sequence of TX signal patterns to a set of sensor electrodes. For each TX signal pattern in the sequence of TX signal patterns, and for each subset of three or more contiguous sensor electrodes of the set of sensor electrodes, the TX generator applies to the subset one of a first excitation signal and a second excitation signal. The plurality of subsets includes at least half of the sensor electrodes in the set of sensor electrodes. The capacitance sensing device also includes a sequencer circuit coupled with the TX generator. For each TX signal pattern in the sequence of TX signal patterns, the sequencer circuit determines a next subsequent TX signal pattern in the sequence based on a circular rotation of the TX signal pattern. The capacitance sensing device also includes a processing block coupled with the TX generator.Type: ApplicationFiled: June 22, 2018Publication date: June 13, 2019Applicant: Cypress Semiconductor CorporationInventors: Viktor Kremin, Volodymyr Bihday, Ruslan Omelchuk, Oleksandr Pirogov, Vasyl Mandziy, Roman Ogirko, Ihor Musijchuk, Andriy Maharyta, Igor Kolych, Igor Kravets
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Publication number: 20180025202Abstract: A method for detecting fingerprint spoof objects includes detecting a presence of the object at a fingerprint sensor and, in response to detecting the presence of the object, measuring a set of physical properties of the object based on one or more signals from a set of electrodes of the fingerprint sensor. The set of physical properties includes at least one of a subdermal compliance of the object and a surface adhesiveness of the object. The method further includes distinguishing the object as an actual finger or a spoof based on the one or more physical properties.Type: ApplicationFiled: March 22, 2017Publication date: January 25, 2018Inventors: Andriy Ryshtun, Viktor Kremin, Oleksandr Rohozin, Oleksandr Pirogov, Mykhaylo Krekhovetskyy, Volodymyr Bihday, Roman Ogirko
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Patent number: 9658720Abstract: A system comprising a sensing device and a capacitive sense array configured to detect a presence of a passive touch object and a stylus where the capacitive sense array receives a transmit signal from the stylus via capacitive coupling. The system further comprising a processing device configured to determine the stylus location on the capacitive sense array based on the transmit signal and to synchronize the stylus to the capacitive sense array. A system further comprises a demodulation block to extract additional data that is modulated into the transmit signal by the stylus. The demodulation block is configured to extract the additional data by amplitude shift keying. The additional data comprises at least one of an applied force value of the stylus tip, a button status data, a battery status data, or a stylus acceleration data.Type: GrantFiled: August 19, 2011Date of Patent: May 23, 2017Assignee: PARADE TECHNOLOGIES, LTD.Inventors: Viktor Kremin, Roman Ogirko, Oleksandr Pirogov, Andriy Ryshtun, Darrin Vallis
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Patent number: 9645690Abstract: A method for improving noise immunity of capacitive sensing circuit associated with a touch sense array is disclosed. The capacitive sensing circuit receives a response signal from a touch sense array. The capacitive sensing circuit measures a noise component of the response signal. When a level of noise of the noise component within a passband of the capacitive sensing circuit is greater than a threshold, the capacitive sensing circuit changes at least one parameter of capacitive sensing circuit to move the passband substantially outside the frequency spectrum of the noise component.Type: GrantFiled: July 28, 2015Date of Patent: May 9, 2017Assignee: PARADE TECHNOLOGIES, LTD.Inventors: Anton Konovalov, Andriy Yarosh, Roman Ogirko, Oleksandr Pirogov, Roman Sharamaga, Andriy Maharyta, Viktor Kremin