Patents by Inventor ROMAN OGIRKO

ROMAN OGIRKO 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: 20210226626
    Abstract: Technology directed to capacitive touch-sensing channels, including a capacitive-sensing converter based on a sigma-delta modulator, is described. One sigma-delta modulator includes a comparator, a first integrator coupled to receive an incoming signal from the input node and to provide a first output signal, a second integrator, coupled in parallel to the first integrator, to receive the incoming signal and to provide a second output signal, and switching circuitry. The switching circuitry is configured to selectively couple the first integrator between the input node and the comparator to provide the first output signal to the comparator or selectively couple the second integrator between the input node and the comparator to provide the second output signal to the comparator.
    Type: Application
    Filed: June 25, 2020
    Publication date: July 22, 2021
    Applicant: Cypress Semiconductor Corporation
    Inventor: Roman Ogirko
  • Patent number: 11054938
    Abstract: A capacitance-sensing circuit may include a channel input associated with measuring a capacitance of a unit cell of a capacitive sense array. The capacitance-sensing circuit may also include a capacitive hardware baseliner that is coupled to the channel input. The capacitive hardware baseliner includes a programmable baseline resistor, and a buffer with an input coupled to the programmable baseline resistor and an output coupled to the channel input. The capacitive hardware baseliner generates a baseline current based on a time constant of the channel input associated with the measuring of the capacitance of the element of the capacitive sense array using the programmable baseline resistor. The capacitive hardware baseliner provides the baseline current at the channel input to provide a charge for a sense capacitor. A change in the charge of the sense capacitor is provided by the baseline current indicating a presence of a touch object proximate to the element.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 6, 2021
    Assignee: Cypress Semiconductor Corporation
    Inventors: Denis Ellis, Kaveh Hosseini, Timothy John Williams, Gabriel Rowe, Roman Ogirko, Brendan Lawton
  • Publication number: 20210150180
    Abstract: A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
    Type: Application
    Filed: October 22, 2020
    Publication date: May 20, 2021
    Applicant: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury, Oleksandr Karpin, Oleksandr Hoshtanar, Igor Kravets
  • Patent number: 10832029
    Abstract: A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 10, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury, Oleksandr Karpin, Oleksandr Hoshtanar, Igor Kravets
  • Patent number: 10599911
    Abstract: 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: Grant
    Filed: March 22, 2017
    Date of Patent: March 24, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Andriy Ryshtun, Viktor Kremin, Oleksandr Rohozin, Oleksandr Pirogov, Mykhaylo Krekhovetskyy, Volodymyr Bihday, Roman Ogirko
  • Patent number: 10579849
    Abstract: Techniques for multi-phase scanning based on pseudo-random sequences in capacitive fingerprint applications are described herein. In an example embodiment, a method performed by a processing device comprises: receiving measurements that are representative of a portion of a finger on a capacitive fingerprint sensor array, where the measurements are obtained from sensor elements of the capacitive fingerprint sensor array that are scanned in a multi-phase mode based on an excitation vector generated from a pseudo-random sequence; and generating a fingerprint image for the portion of the finger based on the measurements.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: March 3, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Viktor Kremin, Spartak Mankovskyy, Roman Ogirko
  • Patent number: 10540044
    Abstract: The sensing circuit includes including first input of a first electrode, a first set of inputs of a first set of two or more electrodes forming a first intersection and a second intersection, and a second set of inputs of a second set of two or more electrodes forming the second intersection and a third intersection. The sensing circuit includes a scan control circuit, coupled to the touch panel of electrodes, to concurrently select the sets of electrodes via a multiplexer. The touch sensing circuit includes an analog front end configured to generate digital values representative of mutual capacitances of a first and second unit cell, wherein the first unit cell comprises the first and second intersections and the second unit cell comprises the second and third intersections, and a channel engine configured to generate capacitance values corresponding to the unit cells.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: January 21, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Oleksandr Karpin, Mykhaylo Krekhovetskyy, Ruslan Omelchuk, Roman Ogirko, Victor Kremin
  • Publication number: 20200005011
    Abstract: Fingerprint detection circuits with common mode noise rejection are described. The Fingerprint detection circuit includes a half-bridge circuit coupled to a receive (RX) electrode of an array of fingerprint detection electrodes and to a buried capacitance that is unalterable by the presence of a conductive object on the array. The fingerprint detection circuit may also include a listener electrode configured to enable common mode noise rejection through a differential input stage of a low noise amplifier (LNA).
    Type: Application
    Filed: July 10, 2019
    Publication date: January 2, 2020
    Applicant: Cypress Semiconductor Corporation
    Inventors: Igor Kravets, Roman Ogirko, Hans Klein, Oleksandr Hoshtanar
  • Patent number: 10429998
    Abstract: A capacitance-sensing circuit may include a plurality of channel inputs associated with measuring a capacitance of a unit cell of a capacitive sense array. The capacitance-sensing circuit may also include a baseliner component that is coupled to the plurality of channel inputs. The baseliner component may generate a baseline compensation signal using a capacitive circuit and may provide the baseline compensation signal to each of the plurality of channel inputs of the capacitive sense array.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 1, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Denis Ellis, Kaveh Hosseini, Brendan Lawton
  • Publication number: 20190294855
    Abstract: A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
    Type: Application
    Filed: March 27, 2019
    Publication date: September 26, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury, Oleksandr Karpin, Oleksandr Hoshtanar, Igor Kravets
  • Patent number: 10380397
    Abstract: Fingerprint detection circuits with common mode noise rejection are described. The Fingerprint detection circuit includes a half-bridge circuit coupled to a receive (RX) electrode of an array of fingerprint detection electrodes and to a buried capacitance that is unalterable by the presence of a conductive object on the array. The fingerprint detection circuit may also include a listener electrode configured to enable common mode noise rejection through a differential input stage of a low noise amplifier (LNA).
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: August 13, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Igor Kravets, Roman Ogirko, Hans Klein, Oleksandr Hoshtanar
  • Publication number: 20190179446
    Abstract: 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: Application
    Filed: June 22, 2018
    Publication date: June 13, 2019
    Applicant: Cypress Semiconductor Corporation
    Inventors: Viktor Kremin, Volodymyr Bihday, Ruslan Omelchuk, Oleksandr Pirogov, Vasyl Mandziy, Roman Ogirko, Ihor Musijchuk, Andriy Maharyta, Igor Kolych, Igor Kravets
  • Patent number: 10282585
    Abstract: A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 7, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury, Oleksandr Karpin, Oleksandr Hoshtanar, Igor Kravets
  • Patent number: 10216314
    Abstract: A touch sensing apparatus includes a touch sensing surface having a plurality of TX electrodes and a plurality of RX electrodes. The touch sensing apparatus also includes capacitance sensing circuitry. The circuitry receives a plurality of drive signals. For each of a plurality of scanning stages, the circuitry applies a respective one of the plurality of drive signals to each of the plurality of TX electrodes substantially simultaneously according to a respective TX pattern. The respective TX pattern for each scanning stage is distinct. The circuitry receives sense signals from the plurality of RX electrodes. Each of the plurality of sense signals represents capacitance of a respective intersection of a respective TX electrode and a respective RX electrode. The circuitry then correlates the received sense signals for the plurality of scanning stages with the received drive signals to detect an object proximate to the touch panel.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 26, 2019
    Assignee: PARADE TECHNOLOGIES, LTD.
    Inventors: Viktor Kremin, Roman Ogirko
  • Publication number: 20180365476
    Abstract: A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Applicant: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury, Oleksandr Karpin, Oleksandr Hoshtanar, Igor Kravets
  • Patent number: 10146390
    Abstract: A capacitance sensing method includes generating a first set of currents by, for each transmit (TX) electrode of a set of TX electrodes, precharging a self capacitance of the TX electrode and a mutual capacitance between the TX electrode and a receive (RX) electrode of a set of RX electrodes by applying to the TX electrode a first excitation voltage corresponding to the TX electrode to induce a first current of the first set of currents, generating a second set of currents by, for each TX electrode, applying a reference voltage to the TX electrode to induce a second current of the second set of currents, and for each TX electrode, calculating a measure of the self capacitance of the TX electrode based on the second set of currents, and calculating a measure of the mutual capacitance between the TX electrode and each RX electrode based on the first set of currents.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 4, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Andriy Maharyta
  • Patent number: 10068121
    Abstract: A capacitance sensing circuit may include a charge to digital converter, coupled to a signal receiver channel, to receive a signal from a capacitive sense array. The capacitance sensing circuit may also include a baseline compensation signal generator, coupled to the signal receiver channel, to provide a baseline compensation signal in an opposite phase of the signal to the signal receiver channel.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: September 4, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Viktor Kremin, Kaveh Hosseini, Roman Ogirko, Andriy Maharyta
  • Patent number: 10061961
    Abstract: A sensor-compatible overlay is disclosed which uses anisotropic conductive material to increase capacitive coupling of a conductive object through the overlay material to a capacitive sensor. The anisotropic conductive material has increased conductivity in a direction orthogonal to the capacitive sensor. In one embodiment, the overlay is configured to enclose a device which includes a capacitive sensor. In another embodiment, the overlay is configured as a glove.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: August 28, 2018
    Assignee: Cypress Semiconductor Corporation
    Inventors: Roman Ogirko, Hans Klein, David G. Wright, Igor Kolych, Andriy Maharyta, Hassane El-Khoury
  • Publication number: 20180164915
    Abstract: The sensing circuit includes including first input of a first electrode, a first set of inputs of a first set of two or more electrodes forming a first intersection and a second intersection, and a second set of inputs of a second set of two or more electrodes forming the second intersection and a third intersection. The sensing circuit includes a scan control circuit, coupled to the touch panel of electrodes, to concurrently select the sets of electrodes via a multiplexer. The touch sensing circuit includes an analog front end configured to generate digital values representative of mutual capacitances of a first and second unit cell, wherein the first unit cell comprises the first and second intersections and the second unit cell comprises the second and third intersections, and a channel engine configured to generate capacitance values corresponding to the unit cells.
    Type: Application
    Filed: March 31, 2017
    Publication date: June 14, 2018
    Applicant: Cypress Semiconductor Corporation
    Inventors: Oleksandr Karpin, Mykhaylo Krekhovetskyy, Ruslan Omelchuk, Roman Ogirko, Victor Kremin
  • Publication number: 20180025202
    Abstract: 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: Application
    Filed: March 22, 2017
    Publication date: January 25, 2018
    Inventors: Andriy Ryshtun, Viktor Kremin, Oleksandr Rohozin, Oleksandr Pirogov, Mykhaylo Krekhovetskyy, Volodymyr Bihday, Roman Ogirko