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).

  • Publication number: 20250055202
    Abstract: Systems and methods for fabricating a highly power efficient p-i-n diode-based THz radiating array in accordance with embodiments of the invention are illustrated. One embodiment includes a p-i-n diode-based intercoupled THz radiating array, including: a plurality of radiating array elements, wherein each array element comprises an oscillator core oscillating at a fundamental frequency, and where the oscillator core of each array element is locked to an adjacent oscillator core through a coupling network comprising T-lines; and a p-i-n diode coupled to the oscillator core of each array element and configured to produce harmonics of the fundamental frequency from a signal from the oscillator core.
    Type: Application
    Filed: December 8, 2022
    Publication date: February 13, 2025
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Seyedmohammadreza Razavian
  • Publication number: 20240399138
    Abstract: Systems and methods for biopotential recording integrated circuits are illustrated. One embodiment includes a wireless receiver configured to receive a first radio frequency (RF) signal; one or more wireless transmitters; and a processing circuitry, comprising: a power harvesting circuit configured to harvest energy from the first RF signal; a clock recovery circuit configured to extract a clock signal from the first RF signal; at least one sensing electrode configured to record an electric signal as at least one of a voltage, current, and electric charge; and an analog-to-digital converter (ADC) communicatively coupled to the clock recovery circuit.
    Type: Application
    Filed: October 4, 2022
    Publication date: December 5, 2024
    Applicant: The Regents of the University of California
    Inventors: Jaeeun Jang, Aydin Babakhani
  • Publication number: 20240364139
    Abstract: Wirelessly powered receiver system and sensors are described. In an embodiment, the power receiver system, includes an inductive coil that receives wireless power from an external transmitter, a capacitor bank that optimizes power transfer to an energy harvesting device, and a power-receiving frontend RF-DC rectifier with a periodically enabled closed feedback loop that adapts settings of the capacitor bank in real-time to adapt to changes on the inductive coil to maximize power transfer efficiency.
    Type: Application
    Filed: May 3, 2024
    Publication date: October 31, 2024
    Applicant: The Regents of the University of California
    Inventors: Hongming Lyu, Aydin Babakhani
  • Patent number: 12123938
    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: September 12, 2022
    Date of Patent: October 22, 2024
    Assignee: The Regents of the University of California
    Inventors: Aydin Babakhani, Seyedmohammadreza Razavian, Mahdi Assefzadeh, Mostafa Hosseini
  • Patent number: 12062926
    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: Grant
    Filed: September 6, 2022
    Date of Patent: August 13, 2024
    Assignee: The Regents of the University of California
    Inventors: Aydin Babakhani, Hamed Rahmani, Hidemasa Mitsui
  • Patent number: 12052533
    Abstract: Systems and methods for remote sensing are described. In an embodiment, an apparatus, includes: a radio frequency identification (RFID) tag; an electromagnetic transmitter configured to emit electromagnetic waves; an ultra-wideband (UWB) receiver; a computer system; where: the RFID tag is configured to be operated without a battery, and to be powered by the electromagnetic waves emitted by the electromagnetic transmitter; where the RFID tag is configured to send out UWB impulses based on an amount of electromagnetic power received from the electromagnetic transmitter, such that a repetition rate of the UWB impulses varies with the amount of electromagnetic power received from the electromagnetic transmitter.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 30, 2024
    Assignee: The Regents of the University of California
    Inventors: Hongming Lyu, Aydin Babakhani
  • Publication number: 20240238603
    Abstract: Systems and methods for a dual-input double-tuned transmitter (Tx) configured to wirelessly power and control a plurality of implantable stimulators using radio frequency (RF) signals in accordance with embodiments of the invention are illustrated. One embodiment includes a transmitter, where the transmitter includes a matching network configured to isolate two input signals of different frequencies, wherein the matching network includes a lumped element frequency trap comprising at least one inductor and a plurality of capacitors. The transmitter further includes a Tx coil, wherein the Tx coil is configured to transmit two RF signals at the frequencies of the input signals with a difference in frequency by a factor of 10% or more.
    Type: Application
    Filed: January 16, 2024
    Publication date: July 18, 2024
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Iman Habibagahi
  • Patent number: 12034491
    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: Grant
    Filed: January 28, 2020
    Date of Patent: July 9, 2024
    Assignee: The Regents of the University of California
    Inventors: Aydin Babakhani, Babak Jamali
  • Patent number: 12009675
    Abstract: Wirelessly powered receiver system and sensors are described. In an embodiment, the power receiver system, includes an inductive coil that receives wireless power from an external transmitter, a capacitor bank that optimizes power transfer to an energy harvesting device, and a power-receiving frontend RF-DC rectifier with a periodically enabled closed feedback loop that adapts settings of the capacitor bank in real-time to adapt to changes on the inductive coil to maximize power transfer efficiency.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: June 11, 2024
    Assignee: The Regents of the University of California
    Inventors: Hongming Lyu, Aydin Babakhani
  • Publication number: 20240173551
    Abstract: Systems and methods for wirelessly powered biomedical treatment systems with closed-loop wireless implantable treatment devices for recording and stimulation are described. In an embodiment, a treatment system, includes: at least one implantable treatment device implantable in a location with respect to a body part, where the at least one implantable treatment device includes: an energy harvesting circuit configured to harvest ambient energy, a sensing circuit configured to sense bioelectrical signals, an stimulator circuit coupled to a set of electrodes to deliver energy, and a communication circuit configured to control the stimulation delivery circuit to deliver energy via at least one electrode from the set of electrodes in response to wireless control signals received from an external controller.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 30, 2024
    Applicant: The Regents of the University of California
    Inventor: Aydin Babakhani
  • Publication number: 20240146115
    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: December 20, 2023
    Publication date: May 2, 2024
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Hamed Rahmani, Hidemasa Mitsui
  • Publication number: 20240115183
    Abstract: Systems and method for wireless recording system-on-chips for distributed neural interface systems with inductive power delivery and UWB data transmission are described. In an embodiment, the system includes an implantable neural interface including: an electrode array having several electrodes; front end circuitry including: one or more digital components, and at least one amplifier coupled to a first electrode and a second electrode of the electrode array, wherein the amplifier and the first electrode and the second electrode form a sensing channel configured to sense electrical activity; and a transceiver including: several digital components; a power harvesting system that receives RF energy through a wireless power link; and a wireless clock receiver that provides a clock signal to the one or more digital components of the front end circuitry and the several digital components of the transceiver.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 11, 2024
    Applicant: The Regents of the University of California
    Inventors: Hamed Rahmani, Aydin Babakhani
  • Patent number: 11911625
    Abstract: Systems and methods for heart stimulation in accordance with embodiments of the invention are illustrated.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: February 27, 2024
    Assignees: The Regents of the University of California, Texas Heart Institute
    Inventors: Aydin Babakhani, Hongming Lyu, Razavi Mehdi, Mathews M. John, Allison Post
  • Patent number: 11828899
    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: November 22, 2021
    Date of Patent: November 28, 2023
    Assignee: MICROSILICON, INC.
    Inventors: Manuel Godoy, Aydin Babakhani, Omar Kulbrandstad, John Lovell
  • Patent number: 11815501
    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: Grant
    Filed: September 6, 2022
    Date of Patent: November 14, 2023
    Assignee: MICROSILICON, INC.
    Inventors: Omar Kulbrandstad, Aydin Babakhani, Manuel Godoy, John Lovell
  • Patent number: 11712559
    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: May 14, 2021
    Date of Patent: August 1, 2023
    Assignees: 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: 20230218893
    Abstract: Wirelessly powered and controlled implantable stimulator system in accordance with embodiments of the invention are described. One embodiment includes: a transmitter (TX) coil wirelessly powering and controlling several implantable stimulators though electromagnetic waves that include modulated waveforms that include n-bit passcodes to individually control stimulation of each of the plurality of implantable stimulators; where an implantable stimulator of the several implantable stimulators includes: a receiver (RX) for receiving a modulated waveform from the TX coil, where the implantable stimulator is controlled based on the modulated waveform.
    Type: Application
    Filed: January 12, 2023
    Publication date: July 13, 2023
    Applicant: The Regents of the University of California
    Inventors: Aydin Babakhani, Iman Habibagahi
  • Publication number: 20230224682
    Abstract: Distributed wireless sensor networks are described. In an embodiment, a distributed wireless sensor network (WSN) system includes: a set of wirelessly powered microchips, and a radio frequency (RF) transceiver, wherein the RF transceiver is configured to transmit RF signals, several of the set of wirelessly powered microchips is configured to be activated when placed in proximity to the RF transceiver transmitting RF signals, each of the several sets of wirelessly powered microchips is configured to radiate back a signal, and the signals radiated by the set of wirelessly powered microchips is coherent in phase and frequency to the RF transceiver.
    Type: Application
    Filed: April 26, 2021
    Publication date: July 13, 2023
    Applicant: The Regents of the University of California
    Inventors: Hamed Rahmani, Aydin Babakhani
  • Publication number: 20230216347
    Abstract: Wirelessly powered receiver system and sensors are described. In an embodiment, the power receiver system, includes an inductive coil that receives wireless power from an external transmitter, a capacitor bank that optimizes power transfer to an energy harvesting device, and a power-receiving frontend RF-DC rectifier with a periodically enabled closed feedback loop that adapts settings of the capacitor bank in real-time to adapt to changes on the inductive coil to maximize power transfer efficiency.
    Type: Application
    Filed: October 20, 2022
    Publication date: July 6, 2023
    Applicant: The Regents of the University of California
    Inventors: Hongming Lyu, Aydin Babakhani
  • Publication number: 20230127803
    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: September 6, 2022
    Publication date: April 27, 2023
    Inventors: Omar KULBRANDSTAD, Aydin BABAKHANI, Manuel GODOY, John LOVELL