Patents by Inventor Andriy Ryshtun
Andriy Ryshtun 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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Publication number: 20160282994Abstract: A capacitance sensing circuit may include a switching circuit configured to generate a sensor current by charging and discharging a capacitive sensor electrode, and a current mirror that generates a mirror current based on the sensor current. Based on the mirror current, a measurement circuit generates an output signal representative of a capacitance of the capacitive sensor electrode.Type: ApplicationFiled: March 31, 2016Publication date: September 29, 2016Inventors: Andriy Maharyta, Andriy Ryshtun
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Patent number: 9442144Abstract: A capacitive sensor includes a switching capacitor circuit, a comparator, and a charge dissipation circuit. The switching capacitor circuit reciprocally couples a sensing capacitor in series with a modulation capacitor during a first switching phase and discharges the sensing capacitor during a second switching phase. The comparator is coupled to compare a voltage potential on the modulation capacitor to a reference and to generate a modulation signal in response. The charge dissipation circuit is coupled to the modulation capacitor to selectively discharge the modulation capacitor in response to the modulation signal.Type: GrantFiled: October 21, 2013Date of Patent: September 13, 2016Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Victor Kremin
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Publication number: 20160224135Abstract: A system and method for synchronizing a stylus to a capacitive sense array. The system including a capacitive sense array which includes a plurality of electrodes. A synchronization signal is transmitted to the stylus using the plurality of electrodes. The synchronization signal is transmitted to the stylus by capacitively coupling the stylus to the capacitive sense array.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Inventors: Viktor Kremin, Andriy Ryshtun, David Wright, Jeff M. Boschee
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Publication number: 20160224136Abstract: A system and method for synchronizing a stylus to a capacitive sense array. The system including a capacitive sense array which includes a plurality of electrodes. A synchronization signal is transmitted to the stylus using the plurality of electrodes. The synchronization signal is transmitted to the stylus by capacitively coupling the stylus to the capacitive sense array.Type: ApplicationFiled: April 12, 2016Publication date: August 4, 2016Inventors: Viktor Kremin, Andriy Ryshtun, David Wright, Jeff M. Boschee
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Patent number: 9400298Abstract: A capacitive sensor includes a switching capacitor circuit, a comparator, and a charge dissipation circuit. The switching capacitor circuit reciprocally couples a sensing capacitor in series with a modulation capacitor during a first switching phase and discharges the sensing capacitor during a second switching phase. The comparator is coupled to compare a voltage potential on the modulation capacitor to a reference and to generate a modulation signal in response. The charge dissipation circuit is coupled to the modulation capacitor to selectively discharge the modulation capacitor in response to the modulation signal.Type: GrantFiled: January 3, 2012Date of Patent: July 26, 2016Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Andriy Ryshtun
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Patent number: 9250752Abstract: A method and apparatus for scanning a first set of electrodes of a capacitive sense array using a first sensing mode to identify a presence of an object in proximity to the capacitive sense array, where scanning using the first sensing mode identifies objects not in physical contact with the capacitive sense array. The first set of electrodes is scanned using a second sensing mode to determine a location of the object in relation to the capacitive sense array, where rescanning using the second sensing mode determines locations of objects in physical contact with the capacitive sense array.Type: GrantFiled: July 14, 2011Date of Patent: February 2, 2016Assignee: PARADE TECHNOLOGIES, LTD.Inventors: Oleksandr Karpin, Andriy Maharyta, Andriy Ryshtun, Victor Kremin, Volodymyr Hutnyk
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Patent number: 9218073Abstract: An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip. The force sensor may be an inductive sensor, a capacitive sensor, a piezo sensor, a force sensing resistor sensor, or an optical sensor.Type: GrantFiled: December 3, 2013Date of Patent: December 22, 2015Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Andriy Ryshtun, David G. Wright
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Patent number: 9019226Abstract: A method and apparatus for scanning a first set of electrodes of a capacitive sense array using a first sensing mode to identify a presence of an object in proximity to the capacitive sense array, where scanning using the first sensing mode identifies objects not in physical contact with the capacitive sense array. The first set of electrodes is scanned using a second sensing mode to determine a location of the object in relation to the capacitive sense array, where rescanning using the second sensing mode determines locations of objects in physical contact with the capacitive sense array.Type: GrantFiled: October 2, 2013Date of Patent: April 28, 2015Assignee: Cypress Semiconductor CorporationInventors: Oleksandr Karpin, Andriy Maharyta, Andriy Ryshtun, Victor Kremin, Volodymyr Hutnyk
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Patent number: 9013441Abstract: A method and apparatus scan a plurality of scan groups in a capacitive sense array to generate signals corresponding to a mutual capacitance between the electrodes. Each of the plurality of scan groups is formed from a subset of the plurality of electrodes. A processing device identifies a scan group where the generated signal is affected by a presence of a conductive object. The processing device individually scans the subset of the plurality of sense elements in the identified scan group to determine a location of the conductive object.Type: GrantFiled: February 25, 2011Date of Patent: April 21, 2015Assignee: Cypress Semiconductor CorporationInventors: Victor Kremin, Oleksandr Pirogov, Andriy Ryshtun
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Patent number: 8982090Abstract: Active stylus operation when there is no physical connection between the stylus and the touch array requires communication and synchronization. It is possible to use the touchscreen stack-up itself to communicate synchronization signals or other information optically by outfitting the active stylus with an optical receiver and transmitting signals either with additional diodes or by modulating the display clock itself.Type: GrantFiled: January 1, 2012Date of Patent: March 17, 2015Assignee: Cypress Semiconductor CorporationInventor: Andriy Ryshtun
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Publication number: 20150062094Abstract: Apparatus and methods of active stylus to host device data transmitting are described. One method receives, at a stylus, an indication that a host device is performing a first coordinate measurement operation to determine a coordinate of the stylus proximate to a capacitive sense array of the host device. The set of coordinate measurement operations includes a first measurement operation of a first set of electrodes of the capacitive sense array and a second measurement operation of a second set of electrodes of the capacitive sense array. While the host device is performing the set of coordinate measurement operations, the stylus transmits a data packet of stylus data to the host device. In particular, the stylus transmits a first bit of the data packet during the first measurement operation and transmits a second bit of the data packet during the second measurement operation.Type: ApplicationFiled: July 16, 2014Publication date: March 5, 2015Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Andriy Ryshtun, Jeff Boshee, Victor Kremin
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Patent number: 8922527Abstract: Methods and apparatuses of a multi-purpose stylus antenna are described. One device includes a processing device comprising a switch, an antenna circuit, and a capacitance sensor. The switch is configured to couple a conductive element between the antenna circuit and the capacitance sensor. The processing device is configured to communicate data to or from a stylus when the switch is coupled to the antenna circuit and to measure capacitance associated with the conductive element when the switch is coupled to the capacitance sensor.Type: GrantFiled: March 16, 2012Date of Patent: December 30, 2014Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Jeffrey M. Boschee
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Patent number: 8878823Abstract: An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip.Type: GrantFiled: March 27, 2012Date of Patent: November 4, 2014Assignee: Cypress Semiconductor CorporationInventors: Viktor Kremin, Andriy Ryshtun
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Patent number: 8866494Abstract: Apparatuses and methods of input attenuator circuits are described. One sensing circuit includes an attenuator circuit to receive a signal from an electrode of a sense array. The attenuator circuit is configured to attenuate input current of the signal. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The attenuation matrix is configured to split the input current into an output current of the attenuation signal on a first output terminal and a second output current on a second output terminal. The attenuation matrix is to output the attenuated signal on the first output terminal to an integrator of the sensing circuit. The attenuator circuit also includes a buffer coupled between the attenuation matrix and the integrator. The buffer is configured to maintain a substantially same voltage at the first output terminal and the second output terminal.Type: GrantFiled: December 4, 2013Date of Patent: October 21, 2014Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Victor Kremin, Mykhaylo Krekhovetskyy, Ruslan Omelchuk
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Publication number: 20140267151Abstract: Apparatuses and methods of input attenuator circuits are described. One sensing circuit includes an attenuator circuit to receive a signal from an electrode of a sense array. The attenuator circuit is configured to attenuate input current of the signal. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The attenuation matrix is configured to split the input current into an output current of the attenuation signal on a first output terminal and a second output current on a second output terminal. The attenuation matrix is to output the attenuated signal on the first output terminal to an integrator of the sensing circuit. The attenuator circuit also includes a buffer coupled between the attenuation matrix and the integrator. The buffer is configured to maintain a substantially same voltage at the first output terminal and the second output terminal.Type: ApplicationFiled: December 4, 2013Publication date: September 18, 2014Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Andriy Ryshtun, Victor Kremin, Mykhaylo Krekhovetskyy, Ruslan Omelchuk
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Patent number: 8797301Abstract: Apparatuses and methods of active stylus to host device data transmitting. One method receives, at a stylus, an indication that a host device is performing a first coordinate scan to determine coordinates of the stylus proximate to a capacitive sense array of the host device. While the host device is performing the first coordinate scan, the stylus transmits at least two bits of stylus data to the host device.Type: GrantFiled: March 16, 2012Date of Patent: August 5, 2014Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Jeffrey M. Boschee, Viktor Kremin
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Publication number: 20140192030Abstract: A device comprising a body comprising an elongated housing with at least a first conductive tip formed at a distal end and at least one sense electrode on the body; a capacitance sense circuit disposed within the housing and configured to sense a capacitance of the sense electrode to generate a proximity result in response to contact with a human body; and a signal generator circuit disposed within the housing and configured to activate a position signal in response to the proximity result, the position signal being driven at the tip of the deviceType: ApplicationFiled: September 24, 2013Publication date: July 10, 2014Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Andriy Ryshtun, Victor Kremin, David G. Wright
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Patent number: 8773405Abstract: A device comprising a body comprising an elongated housing with at least a first conductive tip formed at a distal end and at least one sense electrode on the body; a capacitance sense circuit disposed within the housing and configured to sense a capacitance of the sense electrode to generate a proximity result in response to contact with a human body; and a signal generator circuit disposed within the housing and configured to activate a position signal in response to the proximity result, the position signal being driven at the tip of the device.Type: GrantFiled: September 24, 2013Date of Patent: July 8, 2014Assignee: Cypress Semiconductor CorporationInventors: Andriy Ryshtun, Victor Kremin, David G. Wright
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Publication number: 20140035871Abstract: A method and apparatus for scanning a first set of electrodes of a capacitive sense array using a first sensing mode to identify a presence of an object in proximity to the capacitive sense array, where scanning using the first sensing mode identifies objects not in physical contact with the capacitive sense array. The first set of electrodes is scanned using a second sensing mode to determine a location of the object in relation to the capacitive sense array, where rescanning using the second sensing mode determines locations of objects in physical contact with the capacitive sense array.Type: ApplicationFiled: October 2, 2013Publication date: February 6, 2014Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Oleksandr Karpin, Andriy Maharyta, Andriy Ryshtun, Victor Kremin, Volodymyr Hutnyk
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Patent number: 8610443Abstract: Apparatuses and methods of input attenuator circuits are described. One sensing circuit includes an attenuator circuit to receive a signal from an electrode of a sense array. The attenuator circuit is configured to attenuate input current of the signal. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The attenuation matrix is configured to split the input current into an output current of the attenuation signal on a first output terminal and a second output current on a second output terminal. The attenuation matrix is to output the attenuated signal on the first output terminal to an integrator of the sensing circuit. The attenuator circuit also includes a buffer coupled between the attenuation matrix and the integrator. The buffer is configured to maintain a substantially same voltage at the first output terminal and the second output terminal.Type: GrantFiled: May 15, 2013Date of Patent: December 17, 2013Assignee: Cypress Semiconductor Corp.Inventors: Andriy Ryshtun, Viktor Kremin, Mykhaylo Krekhovetskyy, Ruslan Omelchuk