Patents by Inventor Yahya Mesgarpour Tousi
Yahya Mesgarpour Tousi 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).
-
Patent number: 11824272Abstract: An apparatus for calibrating a multi-antenna system includes an unmanned aerial vehicle (UAV). The UAV includes one or more millimeter-wave (mm-wave) single channel radios that can transmit and receive a mm-wave signal to or from a multi-antenna system under test; at least one directional antenna connected to the one or more radios; sensors that determine a position of the UAV; an omni-directional mobile or Wi-Fi transceiver that communicates with an operator; and a digital microprocessor unit connected to the one or more mm-wave single channel radios, the sensors, and the omni-directional mobile or Wi-Fi transceiver. The digital microprocessor unit can control motion of the UAV and analyze signals received from the one or more mm-wave single channel radios and the at least one directional antenna using position information received from the sensors.Type: GrantFiled: May 12, 2021Date of Patent: November 21, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Publication number: 20210328343Abstract: An apparatus for calibrating a multi-antenna system includes an unmanned aerial vehicle (UAV). The UAV includes one or more millimeter-wave (mm-wave) single channel radios that can transmit and receive a mm-wave signal to or from a multi-antenna system under test; at least one directional antenna connected to the one or more radios; sensors that determine a position of the UAV; an omni-directional mobile or Wi-Fi transceiver that communicates with an operator; and a digital microprocessor unit connected to the one or more mm-wave single channel radios, the sensors, and the omni-directional mobile or Wi-Fi transceiver. The digital microprocessor unit can control motion of the UAV and analyze signals received from the one or more min-wave single channel radios and the at least one directional antenna using position information received from the sensors.Type: ApplicationFiled: May 12, 2021Publication date: October 21, 2021Inventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Patent number: 11073610Abstract: Embodiments provide for a portable imager by capturing several radar readings related to an object in an environment over several times from several of Points of View (POV), wherein each radar reading indicates a distance to and reflectivity of the object relative to the imager; capturing several camera images of the environment over the several of times from the several POVs; determining positional shifts of the imager over the several times based on photogrammetrical differences between subsequent camera images of the several camera images; determining, based on accelerometer data, a trajectory that the imager moves in the environment over the several times; determining positions of the imager in the environment over the several times based on the positional shifts and the trajectory; combining the several radar readings based on the positions to produce a synthetic aperture radar image of the object; and outputting the synthetic aperture radar image.Type: GrantFiled: January 31, 2019Date of Patent: July 27, 2021Assignee: International Business Machines CorporationInventors: Alberto Valdes Garcia, Divya Gopinath, Yahya Mesgarpour Tousi, Daniel Joseph Friedman, Ismael Faro Sertage
-
Patent number: 11018747Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.Type: GrantFiled: August 2, 2019Date of Patent: May 25, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daniel J. Friedman, Joakim Hallin, Yahya Mesgarpour Tousi, Orjan Renstrom, Leonard Rexberg, Scott K. Reynolds, Bodhisatwa Sadhu, Stefan Sahl, Jan-Erik Thillberg, Alberto Valdes Garcia
-
Patent number: 10833781Abstract: An array of antenna elements are located in relation with a plurality of pre-characterized reference detectors. At baseband frequencies, a transmit radiation pattern of the array of antenna elements is sensed with the plurality of pre-characterized reference detectors, at a plurality of phase and gain settings, to detect mismatch among two or more elements of the array of antenna elements. Phase and gain settings for the array of antenna elements are updated to correct the mismatch.Type: GrantFiled: November 18, 2019Date of Patent: November 10, 2020Assignee: International Business Machines CorporationInventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Publication number: 20200249341Abstract: Embodiments provide for a portable imager by capturing several radar readings related to an object in an environment over several times from several of Points of View (POV), wherein each radar reading indicates a distance to and reflectivity of the object relative to the imager; capturing several camera images of the environment over the several of times from the several POVs; determining positional shifts of the imager over the several times based on photogrammetrical differences between subsequent camera images of the several camera images; determining, based on accelerometer data, a trajectory that the imager moves in the environment over the several times; determining positions of the imager in the environment over the several times based on the positional shifts and the trajectory; combining the several radar readings based on the positions to produce a synthetic aperture radar image of the object; and outputting the synthetic aperture radar image.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Inventors: Alberto Valdes Garcia, Divya GOPINATH, Yahya Mesgarpour TOUSI, Daniel Joseph FRIEDMAN, Ismael FARO SERTAGE
-
Publication number: 20200083967Abstract: An array of antenna elements are located in relation with a plurality of pre-characterized reference detectors. At baseband frequencies, a transmit radiation pattern of the array of antenna elements is sensed with the plurality of pre-characterized reference detectors, at a plurality of phase and gain settings, to detect mismatch among two or more elements of the array of antenna elements. Phase and gain settings for the array of antenna elements are updated to correct the mismatch.Type: ApplicationFiled: November 18, 2019Publication date: March 12, 2020Inventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Publication number: 20190356375Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.Type: ApplicationFiled: August 2, 2019Publication date: November 21, 2019Inventors: Daniel J. Friedman, Joakim Hallin, Yahya Mesgarpour Tousi, Orjan Renstrom, Leonard Rexberg, Scott K. Reynolds, Bodhisatwa Sadhu, Stefan Sahl, Jan-Erik Thillberg, Alberto Valdes Garcia
-
Patent number: 10484106Abstract: An array of antenna elements are located in relation with a plurality of pre-characterized reference detectors. At baseband frequencies, a transmit radiation pattern of the array of antenna elements is sensed with the plurality of pre-characterized reference detectors, at a plurality of phase and gain settings, to detect mismatch among two or more elements of the array of antenna elements. Phase and gain settings for the array of antenna elements are updated to correct the mismatch.Type: GrantFiled: May 5, 2016Date of Patent: November 19, 2019Assignee: International Business Machines CorporationInventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Patent number: 10425143Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.Type: GrantFiled: May 16, 2017Date of Patent: September 24, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daniel J. Friedman, Joakim Hallin, Yahya Mesgarpour Tousi, Örjan Renström, Leonard Rexberg, Scott K. Reynolds, Bodhisatwa Sadhu, Stefan Sahl, Jan-Erik Thillberg, Alberto Valdes Garcia
-
Patent number: 9917659Abstract: Transmit/receive switches and methods for radio control include connecting a first reactive impedance in parallel with a power amplifier on a transmit path during reception to neutralize a reactive impedance of the power amplifier and to prevent received signals from entering the transmit path. The first reactive impedance is disconnected during transmission.Type: GrantFiled: June 3, 2016Date of Patent: March 13, 2018Assignee: International Business Machines CorporationInventors: Alberto Valdes Garcia, Scott K. Reynolds, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Publication number: 20180069309Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.Type: ApplicationFiled: May 16, 2017Publication date: March 8, 2018Inventors: Daniel J. Friedman, Joakim Hallin, Yahya Mesgarpour Tousi, Örjan Renström, Leonard Rexberg, Scott K. Reynolds, Bodhisatwa Sadhu, Stefan Sahl, Jan-Erik Thillberg, Alberto Valdes Garcia
-
Publication number: 20170324486Abstract: An array of antenna elements are located in relation with a plurality of pre-characterized reference detectors. At baseband frequencies, a transmit radiation pattern of the array of antenna elements is sensed with the plurality of pre-characterized reference detectors, at a plurality of phase and gain settings, to detect mismatch among two or more elements of the array of antenna elements. Phase and gain settings for the array of antenna elements are updated to correct the mismatch.Type: ApplicationFiled: May 5, 2016Publication date: November 9, 2017Inventors: Alberto Valdes Garcia, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Publication number: 20170104548Abstract: Transmit/receive switches and methods for radio control include connecting a first reactive impedance in parallel with a power amplifier on a transmit path during reception to neutralize a reactive impedance of the power amplifier and to prevent received signals from entering the transmit path. The first reactive impedance is disconnected during transmission.Type: ApplicationFiled: June 3, 2016Publication date: April 13, 2017Inventors: Alberto Valdes Garcia, Scott K. Reynolds, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi
-
Patent number: 9559747Abstract: Transmit/receive switches and methods for radio control include connecting a first reactive impedance in parallel with a power amplifier on a transmit path during reception to neutralize a reactive impedance of the power amplifier and to prevent received signals from entering the transmit path. The first reactive impedance is disconnected during transmission.Type: GrantFiled: October 13, 2015Date of Patent: January 31, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Alberto Valdes Garcia, Scott K. Reynolds, Bodhisatwa Sadhu, Yahya Mesgarpour Tousi