Patents by Inventor Ahmadreza Rofougaran
Ahmadreza Rofougaran 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: 11721906Abstract: An antenna system includes a first substrate, a plurality of chips, a system board having an upper and lower surface, and a beam forming phased array that includes a plurality of radiating waveguide antenna cells for millimeter wave communication. Each radiating waveguide antenna cell includes a plurality of pins where a first pin is connected with a body of a corresponding radiating waveguide antenna cell and the body corresponds to ground for the pins. A first end of the radiating waveguide antenna cells is mounted on the first substrate, where the upper surface of the system board comprises a plurality of electrically conductive connection points to connect the first end of the plurality of radiating waveguide antenna cells to the ground.Type: GrantFiled: September 16, 2022Date of Patent: August 8, 2023Assignee: Movandi CorporationInventors: Seunghwan Yoon, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran, Alfred Grau Besoli, Enver Adas
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Patent number: 11721910Abstract: A communication device includes a lens having a defined shape. A feeder array comprising a plurality of antenna elements that are positioned in a specified proximal distance from the lens to receive a lens-guided beam of input radio frequency (RF) signals through the lens. The specified proximal distance is less than a focal length of the lens. The lens covers the feeder array as a radome enclosure. A distribution of a gain from the received lens-guided beam of input RF signals is substantially equalized from a radiation surplus region to a radiation deficient region of the feeder array to increase at least a reception sensitivity of the plurality of antenna elements for at least the lens-guided beam of input RF signals, based on the defined shape of the lens and the specified proximal distance of the feeder array to the lens.Type: GrantFiled: August 23, 2021Date of Patent: August 8, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Alfred Grau Besoli, Seunghwan Yoon, Farid Shirinfar, Sam Gharavi, Michael Boers, Maryam Rofougaran, Enver Adas, Kartik Sridharan
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Patent number: 11721914Abstract: An antenna system that includes a plurality of chips and a beam forming phased array. The beam forming phased array includes a plurality of radiating waveguide antenna cells. Each radiating waveguide antenna cell includes a plurality of pins that are connected to ground. A body of each radiating waveguide antenna cell corresponds to the ground. The plurality of chips are electrically connected with the plurality of pins and the ground of each of the plurality of radiating waveguide antenna cells to control beamforming through a second end of the plurality of radiating waveguide antenna cells.Type: GrantFiled: November 1, 2022Date of Patent: August 8, 2023Assignee: Movandi CorporationInventors: Seunghwan Yoon, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran, Alfred Grau Besoli, Enver Adas, Zhihui Wang
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Patent number: 11715890Abstract: A wireless communications system includes a first transceiver with a first phased array antenna panel having horizontal-polarization receive antennas and vertical-polarization transmit antennas, where the horizontal-polarization receive antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip, the vertical-polarization transmit antennas form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip.Type: GrantFiled: May 12, 2022Date of Patent: August 1, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
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Patent number: 11715884Abstract: A communication device includes a system board that includes a plurality of chips. Each chip in plurality of chips includes a plurality of antennas. A system cover coupled to system board includes a plurality of lenses. Each lens is configured to cover an antenna of plurality of antennas as a radome enclosure. Each lens includes a base, and a first tubular membrane coupled to base. A second membrane coupled to first tubular membrane. First tubular membrane and Second membrane cause the lens to have a bell shape. A support structure coupled to first tubular membrane. Support structure facilitates coupling of plurality of lenses to system cover. Each chip comprises a feeder array that further comprises a plurality of antenna elements that are positioned at a proximal distance from base of a lens, A distribution of a gain of input RF signals is substantially equalized across plurality of antenna elements.Type: GrantFiled: August 23, 2021Date of Patent: August 1, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Alfred Grau Besoli, Seunghwan Yoon, Farid Shirinfar, Sam Gharavi, Michael Boers, Maryam Rofougaran, Enver Adas, Kartik Sridharan
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Patent number: 11711113Abstract: In a first radio frequency (RF) device, circuits determine a non-line-of-sight (NLOS) radio path, and select a first plurality of reflector devices associated with the NLOS radio path from a second plurality of reflector devices. The first plurality of reflector devices, are selected based on a first set of criteria, includes an active reflector device and a passive reflector device, and are controlled to transmit a plurality of RF signals to a second RF device based on a second set of criteria. The second RF device is associated with electronic devices. The first RF signal interferes with a second RF signal of the RF signals. A first type of signal associated with the plurality of RF signals is converted to a second type of signal at the second RF device, and the second type of signal is transmitted by the second RF device to the one or more electronic devices.Type: GrantFiled: March 22, 2021Date of Patent: July 25, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Seunghwan Yoon
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Patent number: 11705638Abstract: A communication device includes a first lens, a feeder array, and control circuitry communicatively coupled to the feeder array. The first lens is associated with a defined shape, which further exhibits a defined distribution of dielectric constant. The feeder array includes a plurality of antenna elements that are positioned in proximity to the first lens. The control circuitry equalizes a distribution of a gain from the received first lens-guided beam of input RF signals across the feeder array and different scan directions of the plurality of antenna elements. The equalized distribution of gain is based on the defined distribution of dielectric constant within the first lens and the proximity of the feeder array to the first lens.Type: GrantFiled: July 22, 2021Date of Patent: July 18, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Alfred Grau Besoli, Seunghwan Yoon, Farid Shirinfar, Sam Gharavi, Michael Boers, Maryam Rofougaran, Enver Adas, Kartik Sridharan
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Patent number: 11700585Abstract: A communication system that includes neural network system configured to learn from training examples of radio frequency (RF) signals, and circuitry configured to label a first set of fifth generation (5G) RF signals originated from a first type of source and a second set of 5G RF signals originated from a second type of source. At least one RF impairment is added randomly to each labelled example of the first set of 5G RF signals and the second set of 5G RF signals, wherein randomization of artificially added RF impairment to each labeled example corresponds to addition of different RF impairments randomly to different labeled examples. The neural network system is trained with a plurality of labelled examples. Each labelled example includes an artificially added RF impairment. The circuitry uses the trained neural network system to detect an input 5G RF signal having a new RF impairment.Type: GrantFiled: May 3, 2021Date of Patent: July 11, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Sam Gharavi, Xianfu Liu, Qiyue Zou
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Patent number: 11700052Abstract: A repeater device includes a first antenna array having a plurality of antenna configuration modes, where each mode defines a unique configuration of one or more sub-arrays of a plurality of different sub-arrays of the first antenna array. The repeater device further includes control circuitry configured to select one of the plurality of antenna configuration modes and based on the selected one of the plurality of antenna configuration modes, activate a first set of antenna elements of the first antenna array and deactivate a second set of antenna elements of the first antenna array. The first set of antenna elements corresponds to a first configuration of one or more sub-arrays of the first antenna array. A beam of RF signal is directed to a user equipment from the first configuration of the one or more sub-arrays of the first antenna array.Type: GrantFiled: August 15, 2022Date of Patent: July 11, 2023Assignee: Movandi CorporationInventors: Alfred Grau Besoli, Ahmadreza Rofougaran, Brima Ibrahim, Farid Shirinfar, Maryam Rofougaran, Nemat Dolatsha, Yifan Wang
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Patent number: 11695452Abstract: A system, in a radio frequency (RF) transmitter device, selects one or more reflector devices that comprises an active reflector device, along an optimized non-line-of-sight (NLOS) radio path based on a defined criteria. Further, the selected one or more reflector devices are controlled based on one or more conditions. The optimized NLOS radio path is determined from a plurality of NLOS radio paths. In an RF receiver device that communicates with the selected one or more reflector devices using the determined optimized NLOS path. The active reflector device comprises at least a first antenna array and a second antenna array. The first antenna array transmits a first set of beams of RF signals to at least the RF transmitter device and the RF receiver device. The second antenna array receives a second set of beams of RF signals from at least the RF transmitter device and the RF receiver device.Type: GrantFiled: November 29, 2021Date of Patent: July 4, 2023Assignee: Movandi CorporationInventors: Seunghwan Yoon, Ahmadreza Rofougaran
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Patent number: 11695467Abstract: A device includes a primary sector and secondary sectors communicatively coupled to the primary sector. The processor included in the primary sector is configured to down convert a Radio Frequency (RF) signals with a first frequency to an analog baseband (IQ) signal with a second frequency, and receive a second digital baseband signal that comprises a first digital baseband signal and a digital echo signal. The first digital baseband signal comprises a training sequence signal. Further, the processor estimates a plurality of filter taps of the FIR filter based on the digital echo signal and estimate the digital echo signal in the received second digital baseband signal based on the first digital baseband signal and the plurality of filter taps of the FIR filter. The estimated digital echo signal is removed from at least one current digital baseband signal based on the down conversion of the RF signals.Type: GrantFiled: July 13, 2022Date of Patent: July 4, 2023Assignee: Movandi CorporationInventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
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Publication number: 20230208487Abstract: A system including a plurality of circuits in a first radio frequency (RF) device which are configured to control a plurality of reflector devices based on a set of criteria. The controlled plurality of reflector devices transmit a plurality of RF signals in a specified direction and a specified location of a second RF device within transmission range of the controlled plurality of reflector devices. The plurality of RF signals are transmitted in the specified direction and the specified location of a second RF device based on a request for signal cancellation. The request for the signal cancellation is based on a noise from the second RF device and the plurality of RF signals are cancelled in the specified direction and the specified location of the second RF device.Type: ApplicationFiled: February 27, 2023Publication date: June 29, 2023Inventors: Kartik SRIDHARAN, Ahmadreza ROFOUGARAN, Michael BOERS, Seunghwan YOON, Sam GHARAVI, Donghyup SHIN, Farid SHIRINFAR, Stephen WU, Maryam ROFOUGARAN
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Patent number: 11689276Abstract: An active repeater device including a first antenna array, a controller, and one or more secondary sectors receives or transmits a first beam of input RF signals from or to, respectively, a first base station operated by a first service provider and a second beam of input RF signals from or to, respectively, a second base station operated by a second service provider. A controller assigns a first beam setting to a first group of customer premises equipment (CPEs) and a second beam setting to a second group of CPEs, based on one or more corresponding signal parameters associated with the each corresponding group of CPEs. A second antenna array of the second RH unit concurrently transmits or received a first beam of output RF signals to or from the first group of CPEs and a second beam of output RF signals to the second group of CPEs.Type: GrantFiled: March 22, 2021Date of Patent: June 27, 2023Assignee: Movandi CorporationInventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
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Patent number: 11682843Abstract: A communication device includes a lens having a defined shape. A feeder array comprising a plurality of antenna elements that are positioned in a specified proximal distance from the lens to receive a lens-guided beam of input radio frequency (RF) signals through the lens. The specified proximal distance is less than a focal length of the lens. The lens covers the feeder array as a radome enclosure. A distribution of a gain from the received lens-guided beam of input RF signals is substantially equalized from a radiation surplus region to a radiation deficient region of the feeder array to increase at least a reception sensitivity of the plurality of antenna elements for at least the lens-guided beam of input RF signals, based on the defined shape of the lens and the specified proximal distance of the feeder array to the lens.Type: GrantFiled: August 23, 2021Date of Patent: June 20, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Alfred Grau Besoli, Seunghwan Yoon, Farid Shirinfar, Sam Gharavi, Michael Boers, Maryam Rofougaran, Enver Adas, Kartik Sridharan
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Patent number: 11682846Abstract: An antenna device includes a first patch radiator and a second patch radiator arranged over the first patch radiator. The antenna device further includes a central ground pin connected substantially at a center portion of the first patch radiator. The antenna device further includes a plurality of conductive feeding pins connected to the first patch radiator and separated by at least one slot of a plurality of slots provides in the first patch radiator. The antenna device further includes a cell structure having a cavity that includes a polygonal-shaped base and a metallic fence arranged at four or more side walls of the cavity. The first patch radiator and the second patch radiators are arranged in the cavity of the cell structure and are at least partially surrounded by the metallic fence such that a plurality of antenna control parameters are decoupled from each other.Type: GrantFiled: October 5, 2021Date of Patent: June 20, 2023Assignee: Movandi CorporationInventors: Nemat Dolatsha, Alfred Grau Besoli, Yifan Wang, Maryam Rofougaran, Ahmadreza Rofougaran
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Patent number: 11677157Abstract: An antenna system includes a first substrate, a plurality of chips, a system board having an upper and lower surface, and a beam forming phased array that includes a plurality of radiating waveguide antenna cells for millimeter wave communication. Each radiating waveguide antenna cell includes a plurality of pins where a first pin is connected with a body of a corresponding radiating waveguide antenna cell and the body corresponds to ground for the pins. A first end of the radiating waveguide antenna cells is mounted on the first substrate, where the upper surface of the system board comprises a plurality of electrically conductive connection points to connect the first end of the plurality of radiating waveguide antenna cells to the ground.Type: GrantFiled: September 16, 2022Date of Patent: June 13, 2023Assignee: Movandi CorporationInventors: Seunghwan Yoon, Ahmadreza Rofougaran, Sam Gharavi, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran, Alfred Grau Besoli, Enver Adas
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Patent number: 11677450Abstract: A system, in a programmable active reflector (AR) device associated with a first radio frequency (RF) device and a second RF device, receives a request and associated metadata from the second RF device via a first antenna array. Based on the received request and associated metadata, one or more antenna control signals are received from the first RF device. The programmable AR device is dynamically selected and controlled by the first RF device based on a set of criteria. A controlled plurality of RF signals is transmitted, via a second antenna array, to the second RF device within a transmission range of the programmable AR device based on the associated metadata. The controlled plurality of RF signals are cancelled at the second RF device based on the associated metadata.Type: GrantFiled: July 13, 2020Date of Patent: June 13, 2023Assignee: Movandi CorporationInventors: Kartik Sridharan, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Sam Gharavi, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran
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Patent number: 11677355Abstract: A circuit includes a transformer having a primary coil coupled to a first power amplifier (PA) and a second PA, and a secondary coil. The secondary coil supplies a current to an antenna based on a first direction of a first phase of a first amplified constant-envelope signal in the primary coil with respect to a second phase of a second amplified constant-envelope signal in the primary coil. The circuit further includes load impedance coupled between a median point of the primary coil and ground. The load impedance is adjusted to match one of an impedance of the differential antenna, an impedance of the first PA, and an impedance of the second PA, based on the ripples detected by the ripple detector.Type: GrantFiled: March 22, 2022Date of Patent: June 13, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Sam Gharavi
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Patent number: 11670873Abstract: A wireless communications system includes a first transceiver with a first phased array antenna panel having horizontal-polarization receive antennas and vertical-polarization transmit antennas, where the horizontal-polarization receive antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip, the vertical-polarization transmit antennas form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip.Type: GrantFiled: May 12, 2022Date of Patent: June 6, 2023Assignee: Movandi CorporationInventors: Ahmadreza Rofougaran, Farid Shirinfar, Sam Gharavi, Michael Boers, Seunghwan Yoon, Alfred Grau Besoli, Maryam Rofougaran
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Patent number: 11664884Abstract: A device includes a primary sector and secondary sectors communicatively coupled to the primary sector. The processor included in the primary sector is configured to down convert a Radio Frequency (RF) signals with a first frequency to an analog baseband (IQ) signal with a second frequency, and receive a second digital baseband signal that comprises a first digital baseband signal and a digital echo signal. The first digital baseband signal comprises a training sequence signal. Further, the processor estimates a plurality of filter taps of the FIR filter based on the digital echo signal and estimate the digital echo signal in the received second digital baseband signal based on the first digital baseband signal and the plurality of filter taps of the FIR filter. The estimated digital echo signal is removed from at least one current digital baseband signal based on the down conversion of the RF signals.Type: GrantFiled: July 13, 2022Date of Patent: May 30, 2023Assignee: Movandi CorporationInventors: Sam Gharavi, Ahmadreza Rofougaran, Michael Boers, Seunghwan Yoon, Kartik Sridharan, Donghyup Shin, Farid Shirinfar, Stephen Wu, Maryam Rofougaran