Patents by Inventor Dmitry Anatolyevich Rubtsov
Dmitry Anatolyevich Rubtsov 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: 11942948Abstract: An apparatus for forming wideband pseudo random noise signals includes a set of channels each comprising an NCO having a controlled frequency and phase and a PRN code generator, the NCO generating a strobe that is output to the PRN code generator. The PRN code generator forms a new sequence element of +1 or ?1 in response to the strobe. The apparatus also comprises a first modulator having a plurality of weight coefficients, a plurality of multipliers each multiplying one of the weight coefficients, an adder outputting a sum of the plurality of multipliers output signals, and a mixer with a quadrature output signal multiplying the adder's output by sine and cosine of a low intermediate frequency. The apparatus also includes a processor controlling the set of channels, a transceiver module to receive and/or transmit quadrature signals, and an interface connecting the output of the mixer and the transceiver module.Type: GrantFiled: October 8, 2021Date of Patent: March 26, 2024Assignee: TOPCON POSITIONING SYSTEMS, INC.Inventors: Leonid Victorovich Purto, Sergey Sayarovich Bogoutdinov, Dmitry Anatolyevich Rubtsov
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Publication number: 20240069215Abstract: A navigation receiver receives a global navigation satellite system signal and processes the signal in a manner that lowers the load on a processor used in the navigation receiver. The navigation receiver includes multiple components that are assembled and configured to detect and respond to events, such as the generation of signals, using a relaxed tick signal that lowers the load on the processor of the navigation receiver.Type: ApplicationFiled: January 11, 2022Publication date: February 29, 2024Applicant: Topcon Positioning Systems, Inc.Inventors: Dmitry Anatolyevich RUBTSOV, Alexey Stanislavovich LEBEDINSKY
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Publication number: 20240045078Abstract: A method and apparatus for processing global navigation satellite signals, or radar signals, specifies an arrival time of a signal having a shape similar to a known pseudo-random noise sequence (PRN) of rectangular pulses. Two quadrature signals are generated and six correlations are calculated and multiplied by a correlation coefficient. The results of one of quadrature signals are summed and a timing error is estimated. An improved signal arrival time is generated by adding the estimated timing error to the predicted signal arrival time is generated.Type: ApplicationFiled: December 10, 2021Publication date: February 8, 2024Applicant: Topcon Positioning Systems, Inc.Inventors: Leonid Victorovich PURTO, Dmitry Anatolyevich RUBTSOV, Andrey Vladimirovich VEITSEL
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Publication number: 20230384458Abstract: An apparatus includes an antenna, RF path, Analog to Digital convertor (ADC), filter, and navigation channel for processing a received GNSS signal based on a navigation clock. A communication modem is configured to receive the signal via a first antenna, RF path, and ADC and process the received signal in order to generate a signal based on a modem clock. The communication modem is further configured to transmit the signal based on the modem clock using a R+1 antenna via a R+1 RF path and a Digital to Analog Convertor (DAC). A multichannel synchronous signal analysis system (MSSAS) receives outputs of the ADCs and processes them using a plurality of decimators and plurality data receivers. Each of the decimators is configured to process the outputs of the ADCs and output data to one of a plurality of data receivers. A CPU is configured to control all of the devices.Type: ApplicationFiled: October 11, 2021Publication date: November 30, 2023Applicant: Topcon Positioning Systems, Inc.Inventors: Sergey Sayarovich BOGOUTDINOV, Fedor Borisovich SERKIN, Andrey Vladimirovich VEITSEL, Dmitry Yuryevich GOLDBERG, Dmitry Anatolyevich RUBTSOV
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Patent number: 11782168Abstract: A method of receiving two chip-by-chip multiplexed CSK signals (e.g., GNSS signals) and searching for a non-CSK signal with optimal performance at a given digit capacity of a sampling memory resided in parallel correlators. For CSK signals Prompt, Early and Late results for each of possible code shift are calculated as different sums of four punctured convolutions. Depending on configuration, the method allows to receive both multiplexed CSK signals with lesser quality or one of the CSK signals with better quality. The method can be implemented as an apparatus with four punctured correlators, a set of multipliers by 1 or 2N, another set of multipliers by 1 or 0, summers of four input to one result, a RAM, searchers of maximum, and conditional commutators.Type: GrantFiled: February 14, 2023Date of Patent: October 10, 2023Assignee: Topcon Positioning Systems, Inc.Inventors: Andrey Vladimirovich Veitsel, Leonid Victorovich Purto, Dmitry Anatolyevich Rubtsov
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Publication number: 20230305168Abstract: A method and apparatus for fast searching GNSS signals performed on a GNSS receiver includes the steps of receiving a signal having a known pseudo random noise code. State information of a code generator is stored when a pseudo random noise code is generated. Several NCO, including a Doppler NCO are used to search GNSS signal for several supposed Doppler’s simultaneously. A search window associated with the received signal is reviewed a first time to identify a source of the received signal. After it is determined if a source of the received signal can be identified, the state information is loaded into the code generator prior to reviewing the search window a second time etc. Search windows is shifting by all length PRN Code. The loading of state information allows sequential review of the search window without readjustment of a fast search module which speeds the process of analyzing the received signals.Type: ApplicationFiled: August 31, 2021Publication date: September 28, 2023Applicant: Topcon Positioning Systems, Inc.Inventors: Dmitry Anatolyevich RUBTSOV, Leonid Victorovich PURTO, Andrey Vladimirovich VEITSEL, Victor Andreevich PRASOLOV
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Publication number: 20230283267Abstract: An apparatus for forming wideband pseudo random noise signals includes a set of channels each comprising an NCO having a controlled frequency and phase and a PRN code generator, the NCO generating a strobe that is output to the PRN code generator. The PRN code generator forms a new sequence element of +1 or ?1 in response to the strobe. The apparatus also comprises a first modulator having a plurality of weight coefficients, a plurality of multipliers each multiplying one of the weight coefficients, an adder outputting a sum of the plurality of multipliers output signals, and a mixer with a quadrature output signal multiplying the adder's output by sine and cosine of a low intermediate frequency. The apparatus also includes a processor controlling the set of channels, a transceiver module to receive and/or transmit quadrature signals, and an interface connecting the output of the mixer and the transceiver module.Type: ApplicationFiled: October 8, 2021Publication date: September 7, 2023Applicant: TOPCON POSITIONING SYSTEMS, INC.Inventors: Leonid Victorovich PURTO, Sergey Sayarovich BOGOUTDINOV, Dmitry Anatolyevich RUBTSOV
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Publication number: 20230194730Abstract: A method of receiving two chip-by-chip multiplexed CSK signals (e.g., GNSS signals) and searching for a non-CSK signal with optimal performance at a given digit capacity of a sampling memory resided in parallel correlators. For CSK signals Prompt, Early and Late results for each of possible code shift are calculated as different sums of four punctured convolutions. Depending on configuration, the method allows to receive both multiplexed CSK signals with lesser quality or one of the CSK signals with better quality. The method can be implemented as an apparatus with four punctured correlators, a set of multipliers by 1 or 2N, another set of multipliers by 1 or 0, summers of four input to one result, a RAM, searchers of maximum, and conditional commutators.Type: ApplicationFiled: February 14, 2023Publication date: June 22, 2023Inventors: ANDREY VLADIMIROVICH VEITSEL, LEONID VICTOROVICH PURTO, DMITRY ANATOLYEVICH RUBTSOV
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Patent number: 11604285Abstract: A method of receiving two chip-by-chip multiplexed CSK signals (e.g., GNSS signals) and searching for a non-CSK signal with optimal performance at a given digit capacity of a sampling memory resided in parallel correlators. For CSK signals Prompt, Early and Late results for each of possible code shift are calculated as different sums of four punctured convolutions. Depending on configuration, the method allows to receive both multiplexed CSK signals with lesser quality or one of the CSK signals with better quality. The method can be implemented as an apparatus with four punctured correlators, a set of multipliers by 1 or 2N, another set of multipliers by 1 or 0, summers of four input to one result, a RAM, searchers of maximum, and conditional commutators.Type: GrantFiled: April 22, 2020Date of Patent: March 14, 2023Assignee: Topcon Positioning Systems, Inc.Inventors: Andrey Vladimirovich Veitsel, Leonid Victorovich Purto, Dmitry Anatolyevich Rubtsov
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Patent number: 11397265Abstract: A universal multi-channel receiver for receiving and processing signals from different navigation systems is provided. The universal receiver is implemented as an ASIC receiver with a number of universal channels. The receiver with universal channels is capable of receiving and processing signals from navigation satellites located within a direct access zone. The universal receiver has a plurality of channels that share the same memory. The universal receiver can determine its coordinates using any of the existing navigation systems (GPS, GLONASS, Beidou and GALILEO). The receiver can receive and process any (PN) signals.Type: GrantFiled: November 13, 2020Date of Patent: July 26, 2022Assignee: Topcon Positioning Systems, Inc.Inventors: Andrey Vladimirovich Veitsel, Dmitry Anatolyevich Rubtsov, Igor Anatolyevich Orlovsky, Sergey Sayarovich Bogoutdinov
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Publication number: 20220146690Abstract: A method of receiving two chip-by-chip multiplexed CSK signals (e.g., GNSS signals) and searching for a non-CSK signal with optimal performance at a given digit capacity of a sampling memory resided in parallel correlators. For CSK signals Prompt, Early and Late results for each of possible code shift are calculated as different sums of four punctured convolutions. Depending on configuration, the method allows to receive both multiplexed CSK signals with lesser quality or one of the CSK signals with better quality. The method can be implemented as an apparatus with four punctured correlators, a set of multipliers by 1 or 2N, another set of multipliers by 1 or 0, summers of four input to one result, a RAM, searchers of maximum, and conditional commutators.Type: ApplicationFiled: April 22, 2020Publication date: May 12, 2022Inventors: ANDREY VLADIMIROVICH VEITSEL, LEONID VICTOROVICH PURTO, DMITRY ANATOLYEVICH RUBTSOV
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Patent number: 11035960Abstract: Navigation receiver includes antennas receiving signals from different satellite constellations, Low Noise Amplifiers, a Block of Analog Filters, a Block of Quadrature mixers (BQM) translating in phase and quadrature signals to an intermediate frequency, analog converters digitizing the in phase and quadrature signals, a Block of Digital Quadrature Mixers (BDQM) shifting the digitized signals to zero frequency, a Set Block of Digital Filters (SBDF) band-pass filtering the shifted signals, and reducing a sampling rate, and a Block of Digital Processing (BDP) calculating coordinates, all series-connected; a Block of Digital Generators (BDG) for fine control of the BDQM; and a Block of Analog Generators (BAG) that defines which signal is processed by its corresponding BQM; SBDF including Blocks of Digital Filters (BDFs), each BDF including a chain of Blocks of MultiRate Filters for antialiasing filtering/down-sampling of shifted signals, programmable commutators for controlling decimation, and FIR-filters; eachType: GrantFiled: March 22, 2018Date of Patent: June 15, 2021Assignee: Topcon Positioning Systems, Inc.Inventors: Nikolay Afanasievich Vazhenin, Andrey Vladimirovich Veitsel, Vladimir Victorovich Veitsel, Igor Anatolievich Orlovsky, Leonid Victorovich Purto, Dmitry Anatolyevich Rubtsov, Fedor Borisovich Serkin
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Publication number: 20210157016Abstract: Navigation receiver includes antennas receiving signals from different satellite constellations, Low Noise Amplifiers, a Block of Analog Filters, a Block of Quadrature mixers (BQM) translating in phase and quadrature signals to an intermediate frequency, analog converters digitizing the in phase and quadrature signals, a Block of Digital Quadrature Mixers (BDQM) shifting the digitized signals to zero frequency, a Set Block of Digital Filters (SBDF) band-pass filtering the shifted signals, and reducing a sampling rate, and a Block of Digital Processing (BDP) calculating coordinates, all series-connected; a Block of Digital Generators (BDG) for fine control of the BDQM; and a Block of Analog Generators (BAG) that defines which signal is processed by its corresponding BQM; SBDF including Blocks of Digital Filters (BDFs), each BDF including a chain of Blocks of MultiRate Filters for antialiasing filtering/down-sampling of shifted signals, programmable commutators for controlling decimation, and FIR-filters; eachType: ApplicationFiled: March 22, 2018Publication date: May 27, 2021Inventors: NIKOLAY AFANASIEVICH VAZHENIN, ANDREY VLADIMIROVICH VEITSEL, VLADIMIR VICTOROVICH VEITSEL, IGOR ANATOLIEVICH ORLOVSKY, LEONID VICTOROVICH PURTO, DMITRY ANATOLYEVICH RUBTSOV, FEDOR BORISOVICH SERKIN
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Publication number: 20210063583Abstract: A universal multi-channel receiver for receiving and processing signals from different navigation systems is provided. The universal receiver is implemented as an ASIC receiver with a number of universal channels. The receiver with universal channels is capable of receiving and processing signals from navigation satellites located within a direct access zone. The universal receiver has a plurality of channels that share the same memory. The universal receiver can determine its coordinates using any of the existing navigation systems (GPS, GLONASS, Beidou and GALILEO). The receiver can receive and process any (PN) signals.Type: ApplicationFiled: November 13, 2020Publication date: March 4, 2021Inventors: Andrey Vladimirovich Veitsel, Dmitry Anatolyevich Rubtsov, Igor Anatolyevich Orlovsky, Sergey Sayarovich Bogoutdinov
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Patent number: 10845488Abstract: A universal multi-channel receiver for receiving and processing signals from different navigation systems is provided. The universal receiver is implemented as an ASIC receiver with a number of universal channels. The receiver with universal channels is capable of receiving and processing signals from navigation satellites located within a direct access zone. The universal receiver has a plurality of channels that share the same memory. The universal receiver can determine its coordinates using any of the existing navigation systems (GPS, GLONASS, Beidou and GALILEO). The receiver can receive and process any (PN) signals.Type: GrantFiled: September 27, 2018Date of Patent: November 24, 2020Assignee: Topcon Positioning Systems, Inc.Inventors: Andrey Vladimirovich Veitsel, Dmitry Anatolyevich Rubtsov, Igor Anatolyevich Orlovsky, Sergey Sayarovich Bogoutdinov
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Patent number: 10809385Abstract: A method for receiving and processing satellite navigation signals includes receiving the navigation signals; converting the navigation signals into digital signals; providing a clock signal to all channels that process the digital signals; generating frequency division signals; selecting a channel frequency division signal from the frequency division signals based on which ADC is used to convert the satellite navigation signals into digital signals; connecting the channel to the ADC; generating code frequency signal and base carrier frequency signal using a net accumulation signal; processing the digital signal in the channel to produce digital quadrature signal components of the digital signal based on the code frequency signal and the base carrier frequency signal; using a tick signal that represents 2N×clock signal as a temporary time scale for control of the channels for determining digital signal phase differences between the channels; and outputting coordinates based on the quadrature components.Type: GrantFiled: March 26, 2019Date of Patent: October 20, 2020Assignee: Topcon Positioning Systems, Inc.Inventors: Dmitry Anatolyevich Rubtsov, Andrey Vladimirovich Veitsel, Igor Anatolyevich Orlovsky
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Publication number: 20190219708Abstract: A method for receiving and processing satellite navigation signals includes receiving the navigation signals; converting the navigation signals into digital signals; providing a clock signal to all channels that process the digital signals; generating frequency division signals; selecting a channel frequency division signal from the frequency division signals based on which ADC is used to convert the satellite navigation signals into digital signals; connecting the channel to the ADC; generating code frequency signal and base carrier frequency signal using a net accumulation signal; processing the digital signal in the channel to produce digital quadrature signal components of the digital signal based on the code frequency signal and the base carrier frequency signal; using a tick signal that represents 2N×clock signal as a temporary time scale for control of the channels for determining digital signal phase differences between the channels; and outputting coordinates based on the quadrature components.Type: ApplicationFiled: March 26, 2019Publication date: July 18, 2019Inventors: Dmitry Anatolyevich Rubtsov, Andrey Vladimirovich Veitsel, Igor Anatolyevich Orlovsky
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Patent number: 10241212Abstract: A method for receiving and processing satellite navigation signals includes receiving the navigation signals; converting the navigation signals into digital signals; providing a clock signal to all channels that process the digital signals; generating frequency division signals; selecting a channel frequency division signal from the frequency division signals based on which ADC is used to convert the satellite navigation signals into digital signals; connecting the channel to the ADC; generating code frequency signal and base carrier frequency signal using a net accumulation signal; processing the digital signal in the channel to produce digital quadrature signal components of the digital signal based on the code frequency signal and the base carrier frequency signal; using a tick signal that represents 2N×clock signal as a temporary time scale for control of the channels for determining digital signal phase differences between the channels; and outputting coordinates based on the quadrature components.Type: GrantFiled: February 19, 2016Date of Patent: March 26, 2019Assignee: Topcon Positioning Systems, Inc.Inventors: Dmitry Anatolyevich Rubtsov, Andrey Vladimirovich Veitsel, Igor Anatolyevich Orlovsky
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Publication number: 20190041530Abstract: A universal multi-channel receiver for receiving and processing signals from different navigation systems is provided. The universal receiver is implemented as an ASIC receiver with a number of universal channels. The receiver with universal channels is capable of receiving and processing signals from navigation satellites located within a direct access zone. The universal receiver has a plurality of channels that share the same memory. The universal receiver can determine its coordinates using any of the existing navigation systems (GPS, GLONASS, Beidou and GALILEO). The receiver can receive and process any (PN) signals.Type: ApplicationFiled: September 27, 2018Publication date: February 7, 2019Applicant: Topcon Positioning Systems, Inc.Inventors: Andrey Vladimirovich Veitsel, Dmitry Anatolyevich Rubtsov, Igor Anatolyevich Orlovsky, Sergey Sayarovich Bogoutdinov
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Publication number: 20180038964Abstract: A method for receiving and processing satellite navigation signals includes receiving the navigation signals; converting the navigation signals into digital signals; providing a clock signal to all channels that process the digital signals; generating frequency division signals; selecting a channel frequency division signal from the frequency division signals based on which ADC is used to convert the satellite navigation signals into digital signals; connecting the channel to the ADC; generating code frequency signal and base carrier frequency signal using a net accumulation signal; processing the digital signal in the channel to produce digital quadrature signal components of the digital signal based on the code frequency signal and the base carrier frequency signal; using a tick signal that represents 2N×clock signal as a temporary time scale for control of the channels for determining digital signal phase differences between the channels; and outputting coordinates based on the quadrature components.Type: ApplicationFiled: February 19, 2016Publication date: February 8, 2018Inventors: Dmitry Anatolyevich Rubtsov, Andrey Vladimirovich Veitsel, Igor Anatolyevich Orlovsky