Patents by Inventor Aydin Babakhani

Aydin Babakhani 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: 11442159
    Abstract: Systems and methods for modulation and demodulation using a micro-Doppler effect are described. In an embodiment, the method includes radiating, using a picosecond pulse generator with an antenna, a train of THz pulses that form a frequency comb, where the frequency comb is reflected from an object such that the frequency several tones in the frequency comb are shifted based on the speed of the object and demodulating the reflected frequency comb to recover a THz Doppler signature of the object.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: September 13, 2022
    Assignee: The Regents of the University of California
    Inventors: Aydin Babakhani, Seyedmohammadreza Razavian, Mahdi Assefzadeh, Mostafa Hosseini
  • Publication number: 20220264196
    Abstract: Systems and methods for remote sensing are described.
    Type: Application
    Filed: July 7, 2020
    Publication date: August 18, 2022
    Applicant: The Regents of the University of California
    Inventors: Hongming Lyu, Aydin Babakhani
  • Publication number: 20220252506
    Abstract: Systems and methods in accordance with embodiments of the invention implement wirelessly powered frequency-swept spectroscopy sensors. One embodiment includes a first antenna configured to receive an incoming signal; an energy-harvesting circuit configured to produce DC energy; a power management unit; an on-chip signal source configured to use the incoming signal as a locking signal; and a second antenna configured to transmit back a signal locked to the frequency of the incoming signal. In a further embodiment, the wirelessly powered frequency-swept spectroscopy sensor includes a third antenna, where the third antenna is on-chip.
    Type: Application
    Filed: June 30, 2020
    Publication date: August 11, 2022
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Yuxiang Sun
  • Publication number: 20220247437
    Abstract: Many embodiments provide a frequency comb receiver that includes a PIN diode, a THz pulse generator block that generates THz tones (LO) for coherent frequency comb detection, an on-chip antenna for broadband detection and a driver stage switched by a series of buffers, where a repetition rate of the LO tones are tunable over a range and determines a spacing between two adjacent tones in the corresponding frequency comb.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 4, 2022
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Seyedmohammadreza Razavian
  • Publication number: 20220187490
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for performing electron paramagnetic resonance (EPR) spectroscopy on a fluid from a flowing well, such as fluid from hydrocarbon recovery operations flowing in a downhole tubular, wellhead, or pipeline. One example method generally includes, for a first EPR iteration, performing a first frequency sweep of discrete electromagnetic frequencies on a cavity containing the fluid; determining first parameter values of reflected signals from the first frequency sweep; selecting a first discrete frequency corresponding to one of the first parameter values that is less than a threshold value; activating a first electromagnetic field in the fluid at the first discrete frequency; and while the first electromagnetic field is activated, performing a first DC magnetic field sweep to generate a first EPR spectrum.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 16, 2022
    Inventors: Manuel GODOY, Aydin BABAKHANI, Omar KULBRANDSTAD, John LOVELL
  • Publication number: 20220180080
    Abstract: Remote measuring and sensing. Some example embodiment related to optical energy harvesting by identification device, such as infrared identification device (IRID devices). Other embodiments relate to RFID device localization using low frequency source signals. Yet still other embodiments related to energy harvesting by RFID in electric fields in both conductive and non-conductive environments.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Aydin Babakhani, Seyed Mohammad Kazem Pour, Mahdi Forghani, Yuxiang Sun, Yaswanth Kumar Cherivirala
  • Publication number: 20220158497
    Abstract: Systems and methods for utilizing a small form-factor, wirelessly powered transceiver are disclosed. In one embodiment, a wireless powered transceiver includes a receive antenna configured to receive a receive signal, a transmit antenna configured to transmit a transmit signal, a power harvesting system including a rectifier circuit configured convert radio frequency energy from the receive signal into DC (direct current) voltage, and a power management unit (PMU) configured to set the operating mode and biasing condition of the receive and transmit circuitry blocks and provide DC voltage from the receive circuitry block to the transmit circuitry block to maintain a minimum voltage, a receiver circuitry block configured to provide energy from the receive signal to the power harvesting system, and a transmitter circuitry block including a data modulator circuit, the data modulator circuit configured to generate the transmit signal using DC voltage received from the power management unit.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 19, 2022
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Hamed Rahmani, Hidemasa Mitsui
  • Publication number: 20220103264
    Abstract: Systems and methods in accordance with embodiments of the invention implement electronic frequency-comb detector systems. One embodiment includes an electronic frequency-comb detector, where the electronic frequency-comb detector includes: a frequency-comb generator configured to generate a frequency comb reference signal, and a heterodyne mixer. In addition, the heterodyne mixer is configured to use the frequency comb reference signal to downconvert received millimeter wave (mm-wave) and terahertz (THZ) frequency tones into an intermediate frequency (IF) signal. In a further embodiment, the electronic frequency-comb detector includes an IF amplifier, where the IF amplifier is configured to feed a spectrum analyzer configured to detect a signature of a material under test (MUT).
    Type: Application
    Filed: January 28, 2020
    Publication date: March 31, 2022
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Babak Jamali
  • Patent number: 11263412
    Abstract: Remote measuring and sensing. Some example embodiment related to optical energy harvesting by identification device, such as infrared identification device GRID devices). Other embodiments relate to RFID device localization using low frequency source signals. Yet still other embodiments related to energy harvesting by RFID in electric fields in both conductive and non-conductive environments.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: March 1, 2022
    Assignee: William Marsh Rice University
    Inventors: Aydin Babakhani, Seyed Mohammad Kazem Pour, Mahdi Forghani, Yuxiang Sun, Yaswanth Kumar Cherivirala
  • Publication number: 20220022782
    Abstract: Wirelessly powered biosensors are described. In an embodiment, a wirelessly powered electrochemical sensor system includes: an external controller, an implantable microchip that includes an electrochemical sensor coupled to a target molecule, where the microchip communicates with the external controller and receives wireless power from the external controller, where the microchip measures at least one of current and voltage from the electrochemical sensor.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Applicant: The Regents of the University of California
    Inventor: Aydin Babakhani
  • Publication number: 20220008736
    Abstract: Systems and methods for heart stimulation in accordance with embodiments of the invention are illustrated.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 13, 2022
    Applicants: The Regents of the University of California, Texas Heart Institute
    Inventors: Aydin Babakhani, Hongming Lyu, Razavi Mehdi, Mathews M. John, Allison Post
  • Patent number: 11199514
    Abstract: An Electron Paramagnetic resonance (EPR) system and method allows the measurement paramagnetic characteristics of materials in real-time, such as heavy oil, hydrocarbons, asphaltenes, heptane, vanadium, resins, drilling fluid, mud, wax deposits or the like. The EPR systems and methods discussed herein are low cost, small and light weight, making them usable in flow-assurance or logging applications. The EPR sensor is capable of measuring paramagnetic properties of materials from a distance of several inches. In some embodiments, a window will be used to separate the EPR sensor from the materials in a pipeline or wellbore. Since the sensor does need to be in direct contact with the materials, it can operate at a lower temperature or pressure. In other embodiments, the EPR sensor may be placed in the materials.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: December 14, 2021
    Assignee: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Aydin Babakhani, Xuebei Yang
  • Patent number: 11181658
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for performing electron paramagnetic resonance (EPR) spectroscopy on a fluid from a flowing well, such as fluid from hydrocarbon recovery operations flowing in a downhole tubular, wellhead, or pipeline. One example method generally includes, for a first EPR iteration, performing a first frequency sweep of discrete electromagnetic frequencies on a cavity containing the fluid; determining first parameter values of reflected signals from the first frequency sweep; selecting a first discrete frequency corresponding to one of the first parameter values that is less than a threshold value; activating a first electromagnetic field in the fluid at the first discrete frequency; and while the first electromagnetic field is activated, performing a first DC magnetic field sweep to generate a first EPR spectrum.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 23, 2021
    Assignee: MICROSILICON INC.
    Inventors: Manuel Godoy, Aydin Babakhani, Omar Kulbrandstad, John Lovell
  • Publication number: 20210356417
    Abstract: Wirelessly powered dielectric sensor in accordance with embodiments of the invention are disclosed. In many embodiments, a wirelessly powered dielectric sensor includes an RF-power receiving antenna that receives electromagnetic power, a power management unit (PMU) including a capacitor to rectify and store the electromagnetic power, and a dielectric constant sensing sensor, where the PMU monitors harvested energy and operates the dielectric sensing sensor; and where the dielectric sensing sensor senses a dielectric constant of a material that is in close proximity.
    Type: Application
    Filed: November 4, 2019
    Publication date: November 18, 2021
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Yuxiang Sun
  • Publication number: 20210339017
    Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 4, 2021
    Applicants: WILLIAM MARSH RICE UNIVERSITY, TEXAS HEART INSTITUTE, BAYLOR COLLEGE OF MEDICINE
    Inventors: Yuxiang SUN, Aydin BABAKHANI, Mehdi RAZAVI, David BURKLAND, Brian GREET, Mathews JOHN, Hongming LYU
  • Publication number: 20210326545
    Abstract: Remote measuring and sensing. Some example embodiment related to optical energy harvesting by identification device, such as infrared identification device GRID devices). Other embodiments relate to RFID device localization using low frequency source signals. Yet still other embodiments related to energy harvesting by RFID in electric fields in both conductive and non-conductive environments.
    Type: Application
    Filed: May 17, 2021
    Publication date: October 21, 2021
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Aydin Babakhani, Seyed Mohammad Kazem Pour, Mahdi Forghani, Yuxiang Sun, Yaswanth Kumar Cherivirala
  • Patent number: 11071857
    Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 27, 2021
    Assignees: William Marsh Rice University, Baylor College of Medicine, Texas Heart Institute
    Inventors: Yuxiang Sun, Aydin Babakhani, Mehdi Razavi, David Burkland, Brian Greet, Mathews John, Hongming Lyu
  • Patent number: 11048893
    Abstract: Remote measuring and sensing. Some example embodiment related to optical energy harvesting by identification device, such as infrared identification device GRID devices). Other embodiments relate to RFID device localization using low frequency source signals. Yet still other embodiments related to energy harvesting by RFID in electric fields in both conductive and non-conductive environments.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 29, 2021
    Assignee: William Marsh Rice University
    Inventors: Aydin Babakhani, Seyed Mohammad Kazem Pour, Mahdi Forghani, Yuxiang Sun, Yaswanth Kumar Cherivirala
  • Publication number: 20210072209
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for closed-loop control of a system using one or more electron paramagnetic resonance (EPR) sensors located on-site. With such EPR sensors, a change can be applied to the system, the EPR sensors can measure the effect(s) of the change, and then adjustments can be made in real-time. This feedback process may be repeated continuously to control the system.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 11, 2021
    Inventors: Omar KULBRANDSTAD, Aydin BABAKHANI, Manuel GODOY, John LOVELL
  • Publication number: 20210018610
    Abstract: Systems and methods for modulation and demodulation using a micro-Doppler effect are described. In an embodiment, the method includes radiating, using a picosecond pulse generator with an antenna, a train of THz pulses that form a frequency comb, where the frequency comb is reflected from an object such that the frequency several tones in the frequency comb are shifted based on the speed of the object and demodulating the reflected frequency comb to recover a THz Doppler signature of the object.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 21, 2021
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Seyedmohammadreza Razavian, Mahdi Assefzadeh, Mostafa Hosseini