Patents by Inventor Ahmad Mirzaei
Ahmad Mirzaei 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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Publication number: 20240079774Abstract: In an embodiment, an apparatus includes a first digital beamformer (DBF) associated with a first subset of antennas of a phased array antenna, the first DBF including a transmit section associated with transmission of a first signal at a first frequency in a transmit mode and a receive section associated with receiving of a second signal at a second frequency in a receive mode, the second frequency being different from the first frequency. The apparatus includes a second DBF associated with a second subset of antennas of the phased array antenna. The first and second DBFs are configured to receive a local oscillator signal having the first frequency from a common local oscillator in the transmit mode and receive the local oscillator signal having the second frequency from the common local oscillator in the receive mode.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
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Publication number: 20240039568Abstract: In an embodiment, a receiver included in a communications system is configured to receive a radio frequency (RF) signal from a phased array antenna, the RF signal comprising at least a portion of a plurality of data beams included in a single channel, generate a plurality of channel signals based on the RF signal. Generating the plurality of channel signals includes separating the RF signal into a plurality of channels in which each channel of the plurality of channels includes at least a portion of a respective subset of the plurality of data beams. The receiver is further configured to decode each data beam of the plurality of channel signals with a respective phase and a respective time delay. The receiver is further configured to output the plurality of data beams of the plurality of channels.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Publication number: 20240039594Abstract: In an embodiment, an apparatus includes one or more electrical components. The one or more electrical components are configured to encode each data beam of a first plurality of data beams of a first channel to generate an encoded first plurality of data beams. The one or more electrical components are configured to encode each data beam of a second plurality of data beams of a second channel to generate an encoded second plurality of data beams. The one or more electrical components are configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.Type: ApplicationFiled: October 9, 2023Publication date: February 1, 2024Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Patent number: 11855362Abstract: In an embodiment, a device is included in a communications system, the device including a plurality of antenna elements configured in a phased array antenna; a plurality of integrated circuit (IC) chips, wherein each IC chip of the plurality of IC chips is associated with a respective subset of antenna elements of the plurality of antenna elements, and wherein, for each IC chip of the plurality of IC chips, the associated subset of antenna elements is used for transmitting and receiving radio frequency (RF) signals by the IC chip; and a local oscillator configured to generate a common local oscillator signal and provide the common local oscillator signal to each IC chip of the plurality of IC chips.Type: GrantFiled: May 3, 2020Date of Patent: December 26, 2023Assignee: Space Exploration Technologies Corp.Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
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Patent number: 11817894Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.Type: GrantFiled: September 13, 2022Date of Patent: November 14, 2023Assignee: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Patent number: 11811476Abstract: In an embodiment, an apparatus includes a digital beamforming section. The digital beamforming section is configured to encode each data beam of a first plurality of data beams of a first channel with a first plurality of respective time delays and phases to generate an encoded first plurality of data beams and encode each data beam of a second plurality of data beams of a second channel with a second plurality of respective time delays and phases to generate an encoded second plurality of data beams. The second plurality of data beams is different from the first plurality of data beams. The apparatus includes a channel combiner, electrically coupled to the digital beamforming section, and configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.Type: GrantFiled: September 9, 2022Date of Patent: November 7, 2023Assignee: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Publication number: 20230008670Abstract: In an embodiment, an apparatus includes a digital beamforming section. The digital beamforming section is configured to encode each data beam of a first plurality of data beams of a first channel with a first plurality of respective time delays and phases to generate an encoded first plurality of data beams and encode each data beam of a second plurality of data beams of a second channel with a second plurality of respective time delays and phases to generate an encoded second plurality of data beams. The second plurality of data beams is different from the first plurality of data beams. The apparatus includes a channel combiner, electrically coupled to the digital beamforming section, and configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.Type: ApplicationFiled: September 9, 2022Publication date: January 12, 2023Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Publication number: 20230006706Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.Type: ApplicationFiled: September 13, 2022Publication date: January 5, 2023Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Patent number: 11483021Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.Type: GrantFiled: March 5, 2021Date of Patent: October 25, 2022Assignee: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Patent number: 11469802Abstract: In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel, the first plurality of digital beamformers configured to encode each data beam of a first plurality of data beams of the first channel to generate an encoded first plurality of data beams; a second plurality of digital beamformers associated with a second channel different from the first channel, the second plurality of digital beamformers configured to encode each data beam of a second plurality of data beams of the second channel to generate an encoded second plurality of data beams; and a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.Type: GrantFiled: February 26, 2021Date of Patent: October 11, 2022Assignee: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Publication number: 20210194524Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; and a plurality of decoders electrically coupled to the channel extractor and configured to decode each of the plurality of channel signals into a respective plurality of decoded data beam portions.Type: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Applicant: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Publication number: 20210184741Abstract: In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel, the first plurality of digital beamformers configured to encode each data beam of a first plurality of data beams of the first channel to generate an encoded first plurality of data beams; a second plurality of digital beamformers associated with a second channel different from the first channel, the second plurality of digital beamformers configured to encode each data beam of a second plurality of data beams of the second channel to generate an encoded second plurality of data beams; and a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.Type: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Applicant: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Patent number: 10944442Abstract: In an embodiment, a receiver included in a communications system includes a channel extractor configured to segregate a received signal into a plurality of channel signals, wherein the plurality of channel signals includes a plurality of data signals; a plurality of phase shifters electrically coupled to the channel extractor and configured to decode each data signal of the plurality of data signals with a respective phase; and a plurality of time delay filters electrically coupled to the plurality of phase shifters and configured to decode each data signal of the plurality of data signals with a respective time delay, wherein the plurality of time delay filters outputs each subset of the plurality of data signals in a respective channel of the plurality of channels.Type: GrantFiled: May 3, 2020Date of Patent: March 9, 2021Assignee: Space Exploration Technologies Corp.Inventors: Alireza Mehrnia, Masoud Kahrizi, Alex Ahmad Mirzaei, Bagher Afshar, Ali Sajjadi, Bernd Pregardier, Ka Shun Carson Pun, Omid Nasiby, Igor Elgorriaga
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Patent number: 10938465Abstract: In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel; a second plurality of digital beamformers associated with a second channel different from the first channel; a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of the encoded first plurality of data beams and the encoded second plurality of data beams, wherein the combined channel has a bandwidth that is a function of a bandwidth of one or both of the first or second channel; and a radio frequency (RF) transmission section, electrically coupled to the channel combiner, and configured to generate an output signal to be provided to a transmitting antenna based on the combined channel, wherein the RF transmission section includes a digital-to-analog converter (DAC) and a mixer.Type: GrantFiled: May 3, 2020Date of Patent: March 2, 2021Assignee: SPACE EXPLORATION TECHNOLOGIES CORP.Inventors: Alireza Mehrnia, Masoud Kahrizi, Ka Shun Carson Pun, Omid Nasiby, Alex Ahmad Mirzaei
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Publication number: 20200388916Abstract: In an embodiment, a device is included in a communications system, the device including a plurality of antenna elements configured in a phased array antenna; a plurality of integrated circuit (IC) chips, wherein each IC chip of the plurality of IC chips is associated with a respective subset of antenna elements of the plurality of antenna elements, and wherein, for each IC chip of the plurality of IC chips, the associated subset of antenna elements is used for transmitting and receiving radio frequency (RF) signals by the IC chip; and a local oscillator configured to generate a common local oscillator signal and provide the common local oscillator signal to each IC chip of the plurality of IC chips.Type: ApplicationFiled: May 3, 2020Publication date: December 10, 2020Applicant: Space Exploration Technologies Corp.Inventors: Masoud Kahrizi, Alex Ahmad Mirzaei, Ali Sajjadi, Bagher Afshar, Babak Vakili-Amini, Alireza Mehrnia, Behzad Nourani, Bernd Pregardier
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Patent number: 9742367Abstract: The present disclosure is directed to a system and method for performing the outphasing technique without using a combiner at the output of two power amplifiers to reduce loss and distortions.Type: GrantFiled: July 29, 2015Date of Patent: August 22, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Alex Ahmad Mirzaei, Hooman Darabi
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Patent number: 9629093Abstract: A programmable transmitter circuit may be coupled to a controller circuit. The controller circuit may be configured to generate control signals based at least on a signal. The transmitter circuit may include a plurality of unit cells. Each unit cell may include a respective first current source and a respective second current source. Each unit cell may be configured to be set in an activated state or a deactivated state based at least on the control signals. For a unit cell of the plurality of unit cells, when the unit cell is set in the activated state, the respective first current source or the respective second current source may be configured to generate a current to be applied to a load.Type: GrantFiled: July 20, 2015Date of Patent: April 18, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Alex Ahmad Mirzaei, Hooman Darabi, Masoud Kahrizi, Behnam Mohammadi
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Patent number: 9577685Abstract: A system includes baseband circuitry and a transmitter. The electrical behavior of the transmitter may cause distortion effects in the transmit output of the transmitter during transmissions based on input signals from the baseband circuitry. The baseband circuitry may reference a calibration evaluation function for multiple transmit variables to pre-distort the input signal to compensate for the distortion effect. Pre-distortion calibration logic may generate the evaluation function using a one-dimensional calibration technique. The evaluation function may facilitate the baseband accessing calibration data without necessarily relying on a look-up table. In some cases, a one-dimensional calibration for multiple transmit variables may use fewer calibration points than a similarly accurate multi-dimensional calibration.Type: GrantFiled: February 16, 2016Date of Patent: February 21, 2017Assignee: BROADCOM CORPORATIONInventors: Alex Ahmad Mirzaei, Hooman Darabi, Masoud Kahrizi
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Publication number: 20170033743Abstract: The present disclosure is directed to a system and method for performing the outphasing technique without using a combiner at the output of two power amplifiers to reduce loss and distortions.Type: ApplicationFiled: July 29, 2015Publication date: February 2, 2017Applicant: Broadcom CorporationInventors: Alex Ahmad MIRZAEI, Hooman DARABI
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Publication number: 20160381632Abstract: A programmable transmitter circuit may be coupled to a controller circuit. The controller circuit may be configured to generate control signals based at least on a signal. The transmitter circuit may include a plurality of unit cells. Each unit cell may include a respective first current source and a respective second current source. Each unit cell may be configured to be set in an activated state or a deactivated state based at least on the control signals. For a unit cell of the plurality of unit cells, when the unit cell is set in the activated state, the respective first current source or the respective second current source may be configured to generate a current to be applied to a load.Type: ApplicationFiled: July 20, 2015Publication date: December 29, 2016Inventors: Alex Ahmad MIRZAEI, Hooman Darabi, Masoud Kahrizi, Behnam Mohammadi