Patents by Inventor Farhad Farzami
Farhad Farzami 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: 11967760Abstract: An example method performed by a wireless-power-transmitting device including an antenna array is provided. The method includes, based on a location of the wireless-power-receiving device, selecting a first value for a first transmission characteristic that is used for transmission of electromagnetic waves by a first antenna group, and a second value, distinct from the first value, for the first transmission characteristic that is used for transmission of electromagnetic waves by a second antenna group. The method also includes transmitting to the location of the wireless-power-receiving device, by the first antenna group, first electromagnetic waves with the first value for the first transmission characteristic, and transmitting to a focal point that is further from the wireless-power-transmitting device than the location of the wireless-power-receiving device, by the second antenna group, second electromagnetic waves with the second value for the first transmission characteristic.Type: GrantFiled: May 16, 2023Date of Patent: April 23, 2024Assignee: ENERGOUS CORPORATIONInventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami
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Publication number: 20230291094Abstract: An example method performed by a wireless-power-transmitting device including an antenna array is provided. The method includes, based on a location of the wireless-power-receiving device, selecting a first value for a first transmission characteristic that is used for transmission of electromagnetic waves by a first antenna group, and a second value, distinct from the first value, for the first transmission characteristic that is used for transmission of electromagnetic waves by a second antenna group. The method also includes transmitting to the location of the wireless-power-receiving device, by the first antenna group, first electromagnetic waves with the first value for the first transmission characteristic, and transmitting to a focal point that is further from the wireless-power-transmitting device than the location of the wireless-power-receiving device, by the second antenna group, second electromagnetic waves with the second value for the first transmission characteristic.Type: ApplicationFiled: May 16, 2023Publication date: September 14, 2023Inventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami
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Patent number: 11699847Abstract: An example method performed by a wireless-power-transmitting device that includes an antenna array is provided. The method includes radiating electromagnetic waves that form a maximum power level at a first distance away from the antenna array. Moreover, a power level of the radiated electromagnetic waves decreases, relative to the maximum power level, by at least a predefined amount at a predefined radial distance away from the maximum power level. In some embodiments, the method also includes detecting a location of a wireless-power-receiving device, whereby the location of the wireless-power-receiving device is further from the antenna array than a location of the maximum power level.Type: GrantFiled: October 12, 2022Date of Patent: July 11, 2023Assignee: Energous CorporationInventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami
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Patent number: 11605896Abstract: A communication device is made with a metallic frame having an interior mounting surface for receiving one or more functional components. The metallic frame includes a first frame member having a first portion extending uninterrupted across one lateral side of the metallic frame. The first portion provides structural support to the communication device. A T-shaped slot antenna is formed in a second portion of the first frame member adjacent to the first portion. The T-shaped slot antenna has first and second arms separated at a gap and partially encompassing a slot. The second portion of the first frame member enables radio frequency communication by at least one of the functional components via the T-shaped slot antenna of the communication device.Type: GrantFiled: April 16, 2020Date of Patent: March 14, 2023Assignee: Motorola Mobility LLCInventors: Seiran Khaledian, Farhad Farzami
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Patent number: 11605897Abstract: A communication device is made with a metallic frame having an interior mounting surface for receiving one or more functional components. The metallic frame includes a first frame member having a first portion extending uninterrupted across one lateral side of the metallic frame. The first portion provides structural support to the communication device. A T-shaped slot antenna is formed in a second portion of the first frame member adjacent to the first portion. The T-shaped slot antenna has first and second arms separated at a gap and partially encompassing a slot. The second portion of the first frame member enables radio frequency communication by at least one of the functional components via the T-shaped slot antenna of the communication device.Type: GrantFiled: January 3, 2022Date of Patent: March 14, 2023Assignee: Motorola Mobility LLCInventors: Seiran Khaledian, Farhad Farzami
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Publication number: 20230034005Abstract: An example method performed by a wireless-power-transmitting device that includes an antenna array is provided. The method includes radiating electromagnetic waves that form a maximum power level at a first distance away from the antenna array. Moreover, a power level of the radiated electromagnetic waves decreases, relative to the maximum power level, by at least a predefined amount at a predefined radial distance away from the maximum power level. In some embodiments, the method also includes detecting a location of a wireless-power-receiving device, whereby the location of the wireless-power-receiving device is further from the antenna array than a location of the maximum power level.Type: ApplicationFiled: October 12, 2022Publication date: February 2, 2023Inventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami
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Patent number: 11515732Abstract: An example method performed by a wireless-power-transmitting device that includes an antenna array is provided. The method includes radiating electromagnetic waves that form a maximum power level at a first distance away from the antenna array. Moreover, a power level of the radiated electromagnetic waves decreases, relative to the maximum power level, by at least a predefined amount at a predefined radial distance away from the maximum power level. In some embodiments, the method also includes detecting a location of a wireless-power-receiving device, whereby the location of the wireless-power-receiving device is further from the antenna array than a location of the maximum power level.Type: GrantFiled: May 7, 2019Date of Patent: November 29, 2022Assignee: Energous CorporationInventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami
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Patent number: 11356235Abstract: An analog self-interference cancellation technique for In-Band Full-Duplex (IBFD) systems generates an inherent secondary self-interference (SI) signal of a circulator and uses that signal to cancel a primary SI signal leaked from a transmitter port within a communication device. The communication device manipulates the phase and angle of this secondary SI, using an adjustable Impedance Mismatch Terminal (IMT) circuit. The result is an efficient SI cancellation technique in the analog domain, which uses the circulator inherent SI signals.Type: GrantFiled: May 24, 2018Date of Patent: June 7, 2022Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISInventors: Besma Smida, Danilo Erricolo, Seiran Khaledian, Farhad Farzami
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Publication number: 20220140490Abstract: A communication device is made with a metallic frame having an interior mounting surface for receiving one or more functional components. The metallic frame includes a first frame member having a first portion extending uninterrupted across one lateral side of the metallic frame. The first portion provides structural support to the communication device. A T-shaped slot antenna is formed in a second portion of the first frame member adjacent to the first portion. The T-shaped slot antenna has first and second arms separated at a gap and partially encompassing a slot. The second portion of the first frame member enables radio frequency communication by at least one of the functional components via the T-shaped slot antenna of the communication device.Type: ApplicationFiled: January 3, 2022Publication date: May 5, 2022Inventors: SEIRAN KHALEDIAN, FARHAD FARZAMI
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Patent number: 11172060Abstract: A communication device, method and computer program product enable improved communication performance by switching or tuning antennas based on detecting touches on edge display(s) of the communication device that has at least one antenna positioned along edges of a housing assembly. A controller monitors edge display(s) of the communication device to determine portions of the edge display(s) that are touched and associates the at least one antenna that is proximate to the portions of the edge display(s) that are touched The controller configures a radio frequency front end of the communication device to switch or tune the at least one antenna in order to provide at least one of: mitigating detrimental effects to antenna performance by the at least one antenna or remaining within regulatory limits for RF transmission exposure.Type: GrantFiled: February 13, 2021Date of Patent: November 9, 2021Assignee: Motorola Mobility LLCInventors: Farhad Farzami, Seiran Khaledian, Armin Klomsdorf
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Publication number: 20210328354Abstract: A communication device is made with a metallic frame having an interior mounting surface for receiving one or more functional components. The metallic frame includes a first frame member having a first portion extending uninterrupted across one lateral side of the metallic frame. The first portion provides structural support to the communication device. A T-shaped slot antenna is formed in a second portion of the first frame member adjacent to the first portion. The T-shaped slot antenna has first and second arms separated at a gap and partially encompassing a slot. The second portion of the first frame member enables radio frequency communication by at least one of the functional components via the T-shaped slot antenna of the communication device.Type: ApplicationFiled: April 16, 2020Publication date: October 21, 2021Inventors: SEIRAN KHALEDIAN, FARHAD FARZAMI
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Publication number: 20210218428Abstract: A communication device, method, and computer program product provide an antenna subsystem including a first antenna positioned proximate to a second antenna. A radio frequency (RF) frontend includes a transmitter, a receiver, and an antenna tuning module coupled to the antenna(s). A controller is communicatively coupled to the RF frontend and a memory containing a proximal antenna association tuning (PAAT) application. The controller executes the PAAT application to enable the communication device to: (i) transmit a reference signal by the transmitter using the first antenna of the more than one antenna; (ii) measure an impedance value of the first antenna based on the transmission of the reference signal; (iii) identify a second antenna of the more than one antenna that is proximate to the first antenna; and (iv) tune, via the antenna tuning module, the first and the second antenna based on the impedance value of the first antenna.Type: ApplicationFiled: January 9, 2020Publication date: July 15, 2021Inventors: ARMIN KLOMSDORF, FARHAD FARZAMI, JOHN P. VITALE
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Patent number: 11063619Abstract: A communication device, method, and computer program product provide an antenna subsystem including a first antenna positioned proximate to a second antenna. A radio frequency (RF) frontend includes a transmitter, a receiver, and an antenna tuning module coupled to the antenna(s). A controller is communicatively coupled to the RF frontend and a memory containing a proximal antenna association tuning (PAAT) application. The controller executes the PAAT application to enable the communication device to: (i) transmit a reference signal by the transmitter using the first antenna of the more than one antenna; (ii) measure an impedance value of the first antenna based on the transmission of the reference signal; (iii) identify a second antenna of the more than one antenna that is proximate to the first antenna; and (iv) tune, via the antenna tuning module, the first and the second antenna based on the impedance value of the first antenna.Type: GrantFiled: January 9, 2020Date of Patent: July 13, 2021Assignee: Motorola Mobility LLCInventors: Armin Klomsdorf, Farhad Farzami, John P. Vitale
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Publication number: 20200099504Abstract: An analog self-interference cancellation technique for In-Band Full-Duplex (IBFD) systems generates an inherent secondary self-interference (SI) signal of a circulator and uses that signal to cancel a primary SI signal leaked from a transmitter port within a communication device. The communication device manipulates the phase and angle of this secondary SI, using an adjustable Impedance Mismatch Terminal (IMT) circuit. The result is an efficient SI cancellation technique in the analog domain, which uses the circulator inherent SI signals.Type: ApplicationFiled: May 24, 2018Publication date: March 26, 2020Inventors: Danilo Erricolo, Besma Smida, Seiran Khaledian, Farhad Farzami
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Publication number: 20190393729Abstract: An example method performed by a wireless-power-transmitting device that includes an antenna array is provided. The method includes radiating electromagnetic waves that form a maximum power level at a first distance away from the antenna array. Moreover, a power level of the radiated electromagnetic waves decreases, relative to the maximum power level, by at least a predefined amount at a predefined radial distance away from the maximum power level. In some embodiments, the method also includes detecting a location of a wireless-power-receiving device, whereby the location of the wireless-power-receiving device is further from the antenna array than a location of the maximum power level.Type: ApplicationFiled: May 7, 2019Publication date: December 26, 2019Inventors: Charalampos (Harry) Contopanagos, Chryssoula (Sissy) Kyriazidou, Anna Papio-Toda, Sohini Sengupta, Farhad Farzami