Patents by Inventor Pavel Kejik
Pavel Kejik 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: 11630167Abstract: A position sensing system has a trim unit to trim hall voltages generated by a first sensor and a second sensor in response to an excitation current, to compensate a non-orthogonality of the first sensor and the second sensor.Type: GrantFiled: January 19, 2022Date of Patent: April 18, 2023Assignee: Chengdu Monolithic Power Systems Co., Ltd.Inventors: Tianzhu Zhang, Serge Reymond, Pavel Kejik
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Patent number: 11549684Abstract: A controller for managing communication of a burner system. The controller may comprise a communication module to manage the exchange of messages between devices of the burner system. The controller may also incorporate a processing module to compose the messages that are exchanged between the devices, identify issues regarding the messages, determine that devices may not be operating properly, and lock-out the devices in response. The controller may also incorporate a timing module having a set of timing requirements and being configured to lock-out devices in response to violation of a timing requirement.Type: GrantFiled: August 27, 2018Date of Patent: January 10, 2023Assignee: HONEYWELL INTERNATIONAL INC.Inventor: Pavel Kejik
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Publication number: 20220236345Abstract: A position sensing system has a trim unit to trim hall voltages generated by a first sensor and a second sensor in response to an excitation current, to compensate a non-orthogonality of the first sensor and the second sensor.Type: ApplicationFiled: January 19, 2022Publication date: July 28, 2022Inventors: Tianzhu Zhang, Serge Reymond, Pavel Kejik
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Publication number: 20200063960Abstract: A controller for managing communication of a burner system. The controller may comprise a communication module to manage the exchange of messages between devices of the burner system. The controller may also incorporate a processing module to compose the messages that are exchanged between the devices, identify issues regarding the messages, determine that devices may not be operating properly, and lock-out the devices in response. The controller may also incorporate a timing module having a set of timing requirements and being configured to lock-out devices in response to violation of a timing requirement.Type: ApplicationFiled: August 27, 2018Publication date: February 27, 2020Inventor: Pavel Kejik
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Patent number: 10451657Abstract: A current sensing system uses a Hall effect device. A conductor carrying a target current is shaped in a way such that two regions with opposite magnetic field directions crossed there through are created at a silicon die which contains the Hall effect devices placed in a mirror way. The Hall effect devices react the magnetic field to generate a Hall voltage when a bias current is applied, which is then processed by a process circuit and an operational unit, so that a differential signal indicative of the target current is generated.Type: GrantFiled: August 14, 2017Date of Patent: October 22, 2019Assignee: Monolithic Power Systems, Inc.Inventors: Serge Reymond, Pavel Kejik
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Publication number: 20180246147Abstract: A current sensing system uses a Hall effect device. A conductor carrying a target current is shaped in a way such that two regions with opposite magnetic field directions crossed there through are created at a silicon die which contains the Hall effect devices placed in a mirror way. The Hall effect devices react the magnetic field to generate a Hall voltage when a bias current is applied, which is then processed by a process circuit and an operational unit, so that a differential signal indicative of the target current is generated.Type: ApplicationFiled: August 14, 2017Publication date: August 30, 2018Inventors: Serge Reymond, Pavel Kejik
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Patent number: 9880025Abstract: A sensor for sensing an angular orientation of a magnet producing a magnetic field includes a sensing unit having N?2 magnetic field sensing devices MFSD; a scanning circuit for repeatedly sequentially probing at least two of the MFSDs and concatenating signals outputted by the respective MFSDs for obtaining a magnetic signal; a magnet-signal output for outputting the magnetic signal; and a reference output for outputting a reference signal independent of the magnetic field. The sensor includes a first signal processing unit SPU1 and a second signal processing unit which are identically constructed, each having an input and an output; a phase detection unit PDU having a first input PDU1 and a second input PDU2, for deriving phase differences between inputted signals, and for outputting a signal related to the angular orientation.Type: GrantFiled: July 10, 2014Date of Patent: January 30, 2018Assignee: MPS TECH SWITZERLAND SARLInventors: Pavel Kejik, Serge Reymond
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Patent number: 9841122Abstract: Valve assemblies may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly. The valve assembly may include a valve body having a fluid path, first and second valves situated in the fluid path, first and second valve actuators, and a pressure sensor in fluid communication with an intermediate volume of the fluid path between the first and second valves. A valve controller may monitor a measure related to a pressure in the intermediate volume. The valve controller may then output a signal if the measure related to the pressure in the intermediate volume meets and/or exceeds a threshold value, where the threshold value is determined based on a measure related to an initial pressure in the intermediate volume and a known test duration.Type: GrantFiled: September 9, 2014Date of Patent: December 12, 2017Assignee: Honeywell International Inc.Inventors: David Kucera, Donald J. Kasprzyk, Gregory Young, Jos Praat, Pavel Kejik
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Patent number: 9453892Abstract: Integrated circuit Hall sensor system comprising a plurality of elementary blocks (EB), each elementary block including a Hall cell (4), a differential pair (8) of an input stage of a Differential Difference Amplifier (DDA), and terminals (12a, 12b), wherein the terminals (12a, 12b) are placed laterally on opposing outer sides of each elementary block parallel to a Y axis and the plurality of elementary blocks are arranged in a juxtaposed manner to form at least one row (6a, 6b) extending along an X axis orthogonal to the Y axis and interconnected by the terminals.Type: GrantFiled: July 1, 2011Date of Patent: September 27, 2016Assignee: LEM Intellectual Property SAInventors: Pavel Kejik, Serge Reymond
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Publication number: 20160169706Abstract: A sensor for sensing an angular orientation of a magnet producing a magnetic field includes a sensing unit having N?2 magnetic field sensing devices MFSD; a scanning circuit for repeatedly sequentially probing at least two of the MFSDs and concatenating signals outputted by the respective MFSDs for obtaining a magnetic signal; a magnet-signal output for outputting the magnetic signal; and a reference output for outputting a reference signal independent of the magnetic field. The sensor includes a first signal processing unit SPU1 and a second signal processing unit which are identically constructed, each having an input and an output; a phase detection unit PDU having a first input PDU1 and a second input PDU2, for deriving phase differences between inputted signals, and for outputting a signal related to the angular orientation.Type: ApplicationFiled: July 10, 2014Publication date: June 16, 2016Inventors: Pavel KEJIK, Serge REYMOND
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Publication number: 20160069473Abstract: Valve assemblies may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly. The valve assembly may include a valve body having a fluid path, first and second valves situated in the fluid path, first and second valve actuators, and a pressure sensor in fluid communication with an intermediate volume of the fluid path between the first and second valves. A valve controller may monitor a measure related to a pressure in the intermediate volume. The valve controller may then output a signal if the measure related to the pressure in the intermediate volume meets and/or exceeds a threshold value, where the threshold value is determined based on a measure related to an initial pressure in the intermediate volume and a known test duration.Type: ApplicationFiled: September 9, 2014Publication date: March 10, 2016Inventors: David Kucera, Donald J. Kasprzyk, Gregory Young, Jos Praat, Pavel Kejik
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Patent number: 8963540Abstract: A sensor for sensing an angular orientation of a magnetic field of a magnet includes: N?2 Hall effect devices (HD1, HD2, . . . ), each having a detection direction and including a first and a second pair of connectors, wherein, in presence of the magnetic field, a flow of an electric current between the connectors of the first pair allows to pick up a Hall voltage between the connectors of the second pair induced by the magnetic field, unless a magnetic field component of the magnetic field along the detection direction is zero, wherein the N Hall effect devices are aligned such that they have a common detection direction lying along an axis; a filtering-or-resonating unit (F) comprising an input and an output, wherein a signal outputted from the output is referred to as filtered signal.Type: GrantFiled: September 7, 2012Date of Patent: February 24, 2015Assignee: Sensima Technology SAInventors: Serge Reymond, Pavel Kejik
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Publication number: 20140070796Abstract: A sensor for sensing an angular orientation of a magnetic field of a magnet includes: N?2 Hall effect devices (HD1, HD2, . . . ), each having a detection direction and including a first and a second pair of connectors, wherein, in presence of the magnetic field, a flow of an electric current between the connectors of the first pair allows to pick up a Hall voltage between the connectors of the second pair induced by the magnetic field, unless a magnetic field component of the magnetic field along the detection direction is zero, wherein the N Hall effect devices are aligned such that they have a common detection direction lying along an axis; a filtering-or-resonating unit (F) comprising an input and an output, wherein a signal outputted from the output is referred to as filtered signal.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Inventors: Serge Reymond, Pavel Kejik
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Patent number: 8508218Abstract: A method for sensing an angular orientation of a magnetic field includes providing a set of N?2 Hall effect devices, each having a detection direction and including two pairs of connectors; providing at least one band pass filter having a fundamental frequency f=1/Tf; providing at least one current source for outputting an electrical current at its output; applying, during a first time period of a duration 0.5 Tf and in a specific sequence of the N Hall effect devices, to each of the N Hall effect devices a respective wiring scheme Wi+, during respective subsequent time periods of durations ti; and applying, during a second time period of a duration 0.5 Tf, subsequent to the first time period of a duration 0.5 Tf, and in the same specific sequence of the N Hall effect devices, to each of the N Hall effect devices a respective wiring scheme Wi?, during respective subsequent time periods of the same durations ti.Type: GrantFiled: May 11, 2011Date of Patent: August 13, 2013Assignee: Sensima Technology SAInventors: Serge Reymond, Pavel Kejik
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Publication number: 20130099782Abstract: Integrated circuit Hall sensor system comprising a plurality of elementary blocks (EB), each elementary block including a Hall cell (4), a differential pair (8) of an input stage of a Differential Difference Amplifier (DDA), and terminals (12a, 12b), wherein the terminals (12a, 12b) are placed laterally on opposing outer sides of each elementary block parallel to a Y axis and the plurality of elementary blocks are arranged in a juxtaposed manner to form at least one row (6a, 6b) extending along an X axis orthogonal to the Y axis and interconnected by the terminals.Type: ApplicationFiled: July 1, 2011Publication date: April 25, 2013Applicant: LEM INTELLECTUAL PROPERTY SAInventors: Pavel Kejik, Serge Reymond
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Patent number: 8358125Abstract: In a method for determining geometrical characteristics (d) of an anomaly (12) which changes the electrical conductivity in the region near the surface of an electrically conducting, in particular a metallic test object (10), a considerable simplification is achieved in that, in the region of the anomaly (12) in the test object (10), eddy currents (13, 14) of different frequencies are excited, and the magnetic field (By,0), which is produced by the excited eddy currents, is scanned in the vicinity of the anomaly (12) and the geometric characteristics of the anomaly are exclusively deduced from the distribution of the magnetic field (By,0).Type: GrantFiled: October 29, 2008Date of Patent: January 22, 2013Assignee: ALSTOM Technology Ltd.Inventors: Roland Richard Moser, Bernard Revaz, Serge Reymond, Pavel Kejik, Radivoje Popovic
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Patent number: 8324891Abstract: A magnetic field sensor includes a sensing structure having a ring-shaped well, a plurality of contacts of equal size disposed along the ring-shaped well, a circuit having a plurality of electronic switches associated with the contacts of the sensing structure, a logic block for controlling the electronic switches, at least one current source, a voltage measuring device, a timing circuit providing a control signal for controlling the logic and providing a reference signal, wherein the logic block is configured to switch the switches under the control of the control signal so that a predetermined number of contacts of the plurality of contacts form a vertical Hall element supplied with current from the at least one current source and having two contacts connected to the voltage measuring device and circuitry configured to measure a phase shift between the reference signal and an output signal of the voltage measuring device.Type: GrantFiled: May 28, 2008Date of Patent: December 4, 2012Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Pavel Kejik, Radivoje Popovic, Serge Reymond
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Publication number: 20120286773Abstract: The method for sensing an angular orientation of a magnetic field includes a) providing a set of N?2 Hall effect devices, each having a detection direction and comprising two pairs of connectors; b) providing at least one band pass filter having a fundamental frequency f=1/Tf; c) providing at least one current source for outputting an electrical current at its output; d1) applying, during a first time period of a duration 0.5 Tf and in a specific sequence of said N Hall effect devices, to each of said N Hall effect devices a respective wiring scheme Wi+, during respective subsequent time periods of durations ti; and d2) applying, during a second time period of a duration 0.5 Tf, subsequent to said first time period of a duration 0.5 Tf, and in the same specific sequence of said N Hall effect devices, to each of said N Hall effect devices a respective wiring scheme Wi?, during respective subsequent time periods of the same durations ti.Type: ApplicationFiled: May 11, 2011Publication date: November 15, 2012Applicant: SENSIMA TECHNOLOGY SAInventors: Serge Reymond, Pavel Kejik
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Patent number: 7834620Abstract: Orthogonal fluxgate sensor for measuring an external magnetic field Hext, comprising a conductor for carrying an excitation current lexc, a ferromagnetic material adapted to saturate in the presence of a magnetic field generated by the excitation current, and at least one pick-up coil adapted to detect variations in the magnetic field in the vicinity of the magnetic material. The excitation conductor comprises a substantially linear elongated portion of conductive, non-magnetic material, forming an excitation rod (6). The magnetic material surrounds the excitation rod in the form of a cladding (8).Type: GrantFiled: July 17, 2006Date of Patent: November 16, 2010Assignee: Liaisons Electroniques-Mecaniques Lem SAInventors: Pavel Kejik, Ozge Zorlu
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Publication number: 20100164491Abstract: A magnetic field sensor for measuring a direction of a magnetic field in a plane comprises a sensing structure comprising a ring-shaped well, a plurality of contacts of equal size placed at equal distance from each other along the ring-shaped well, and an electronic circuit comprising a plurality of electronic switches associated with the contacts of the sensing structure, a logic block for controlling the electronic switches, at least one current source, a means for measuring a difference between a first voltage and a second voltage, a timing circuit providing a control signal for controlling the logic block and providing a reference signal, wherein the logic block is adapted to close and open the electronic switches under the control of the control signal according to a predetermined scheme such that a predetermined number of contacts of the plurality of contacts form a vertical Hall element that is supplied with current from the at least one current source and that has two contacts connected to the means fType: ApplicationFiled: May 28, 2008Publication date: July 1, 2010Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Pavel Kejik, Radivoje Popovic, Serge Reymond