Patents by Inventor Georgios Atmatzakis
Georgios Atmatzakis 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: 11853015Abstract: A wrist-worn electronic device comprises a bezel, an antenna, and an aperture tuning network. The bezel is formed at least partially from electrically conductive material and positioned along a side wall of a housing of the device. The antenna includes a first aperture and a second aperture which are formed by various portions of the bezel. The antenna is configured to operate in one of two operating modes including a dual band mode in which the first aperture receives a first global navigation satellite system (GNSS) wireless signal at a first frequency band and the second aperture receives a second GNSS wireless signal at a second frequency band, and a single band mode in which the first aperture and the second aperture each receive the first GNSS wireless signal. The aperture tuning network has an adjustable configuration wherein adjustment of the adjustable configuration changes the operating mode of the antenna.Type: GrantFiled: March 8, 2021Date of Patent: December 26, 2023Inventors: Georgios Atmatzakis, Abu T. Sayem, Juhi H. Godhwani
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Publication number: 20230187822Abstract: An electronic device comprises a housing, a display stack, a bezel, a solar cell, and a first antenna. The housing includes a bottom wall and a side wall coupled to the bottom wall, the side wall and the bottom wall define a portion of an internal cavity. The display stack includes a display cover and a solar cell configured to output an electric power having a power level corresponding to an intensity of light received by the solar cell. The bezel is coupled to an upper edge of the side wall of the housing, the bezel enclosing the display cover. The solar cell includes a substrate and a photovoltaic layer, the photovoltaic layer including a mesh of electrically conductive material positioned on the substrate and a first opening. The first antenna is formed by the first opening of the photovoltaic layer.Type: ApplicationFiled: January 25, 2022Publication date: June 15, 2023Inventors: Abu T. Sayem, Juhi H. Godhwani, Mohamed Bouchoucha, Jacob T. Zeller, John M. Kenkel, Oliver R. F. Gagliano, Georgios Atmatzakis, Lionel J. Dupuy
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Patent number: 11592577Abstract: A wrist-worn electronic device comprises a housing, a bezel, a location determining element, a communication element, and four antennas. The housing includes a bottom wall contacting a wearer's wrist and a side wall coupled to the bottom wall. The bezel is formed at least partially from electrically conductive material and positioned along an upper edge of the side wall. Two antennas receive a first global navigation satellite system (GNSS) location signals at a first frequency and a second frequency that are used by the location determining element, each antenna including a radiating element formed by a portion of the circumference of the bezel. Two antennas transmit or receive communication protocol wireless signals at a third frequency and a fourth frequency output by or communicated to the communication element, each antenna including a radiating element formed by a portion of the circumference of the bezel.Type: GrantFiled: August 23, 2022Date of Patent: February 28, 2023Inventors: Abu T. Sayem, Juhi H. Godhwani, Georgios Atmatzakis
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Publication number: 20220413163Abstract: A wrist-worn electronic device comprises a housing, a bezel, a location determining element, a communication element, and four antennas. The housing includes a bottom wall contacting a wearer's wrist and a side wall coupled to the bottom wall. The bezel is formed at least partially from electrically conductive material and positioned along an upper edge of the side wall. Two antennas receive a first global navigation satellite system (GNSS) location signals at a first frequency and a second frequency that are used by the location determining element, each antenna including a radiating element formed by a portion of the circumference of the bezel. Two antennas transmit or receive communication protocol wireless signals at a third frequency and a fourth frequency output by or communicated to the communication element, each antenna including a radiating element formed by a portion of the circumference of the bezel.Type: ApplicationFiled: August 23, 2022Publication date: December 29, 2022Inventors: Abu T. Sayem, Juhi H. Godhwani, Georgios Atmatzakis
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Patent number: 11460587Abstract: A wrist-worn electronic device comprises a housing, a bezel, a first frequency band antenna, a second frequency band antenna, and a location determining element. The housing includes a bottom wall contacting a wearer's wrist and a side wall coupled to the bottom wall. The bezel is formed at least partially from electrically conductive material and positioned along an upper edge of the side wall. The first frequency band antenna receives a first global navigation satellite system (GNSS) location signal at a first frequency and includes a radiating element formed by a first portion of a circumference of the bezel. The second frequency band antenna receives a second GNSS location signal at a second frequency and includes a radiating element formed by a second portion of the circumference of the bezel. The location determining element determines a current geolocation of the wrist-worn electronic device based on the first and second GNSS location signals.Type: GrantFiled: February 4, 2020Date of Patent: October 4, 2022Inventors: Abu T. Sayem, Juhi H. Godhwani, Georgios Atmatzakis
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Publication number: 20220283551Abstract: A wrist-worn electronic device comprises a bezel, an antenna, and an aperture tuning network. The bezel is formed at least partially from electrically conductive material and positioned along a side wall of a housing of the device. The antenna includes a first aperture and a second aperture which are formed by various portions of the bezel. The antenna is configured to operate in one of two operating modes including a dual band mode in which the first aperture receives a first global navigation satellite system (GNSS) wireless signal at a first frequency band and the second aperture receives a second GNSS wireless signal at a second frequency band, and a single band mode in which the first aperture and the second aperture each receive the first GNSS wireless signal. The aperture tuning network has an adjustable configuration wherein adjustment of the adjustable configuration changes the operating mode of the antenna.Type: ApplicationFiled: March 8, 2021Publication date: September 8, 2022Inventors: Georgios Atmatzakis, Abu T. Sayem, Juhi H. Godhwani
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Publication number: 20210239847Abstract: A wrist-worn electronic device comprises a housing, a bezel, a first frequency band antenna, a second frequency band antenna, and a location determining element. The housing includes a bottom wall contacting a wearer's wrist and a side wall coupled to the bottom wall. The bezel is formed at least partially from electrically conductive material and positioned along an upper edge of the side wall. The first frequency band antenna receives a first global navigation satellite system (GNSS) location signal at a first frequency and includes a radiating element formed by a first portion of a circumference of the bezel. The second frequency band antenna receives a second GNSS location signal at a second frequency and includes a radiating element formed by a second portion of the circumference of the bezel. The location determining element determines a current geolocation of the wrist-worn electronic device based on the first and second GNSS location signals.Type: ApplicationFiled: February 4, 2020Publication date: August 5, 2021Inventors: Abu T. Sayem, Juhi H. Godhwani, Georgios Atmatzakis
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Publication number: 20200412001Abstract: An electronic device may include ground structures and peripheral conductive housing structures defining opposing edges of a slot element. A monopole element may overlap the slot element. The monopole element may be directly fed radio-frequency signals by an antenna feed coupled to the monopole element. The monopole element may radiate the radio-frequency signals in a first frequency band while indirectly feeding the radio-frequency signals to the slot element via near-field electromagnetic coupling. The slot element may radiate the radio-frequency signals in a second frequency band that is lower than the first frequency band. The monopole element and the slot element may collectively form a multi-band antenna that exhibits a relatively wide bandwidth.Type: ApplicationFiled: June 28, 2019Publication date: December 31, 2020Inventors: Enrique Ayala Vazquez, Erdinc Irci, Georgios Atmatzakis, Hongfei Hu
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Patent number: 10862216Abstract: An electronic device may include ground structures and peripheral conductive housing structures defining opposing edges of a slot element. A monopole element may overlap the slot element. The monopole element may be directly fed radio-frequency signals by an antenna feed coupled to the monopole element. The monopole element may radiate the radio-frequency signals in a first frequency band while indirectly feeding the radio-frequency signals to the slot element via near-field electromagnetic coupling. The slot element may radiate the radio-frequency signals in a second frequency band that is lower than the first frequency band. The monopole element and the slot element may collectively form a multi-band antenna that exhibits a relatively wide bandwidth.Type: GrantFiled: June 28, 2019Date of Patent: December 8, 2020Assignee: Apple Inc.Inventors: Enrique Ayala Vazquez, Erdinc Irci, Georgios Atmatzakis, Hongfei Hu
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Patent number: 10727580Abstract: An electronic device may be provided with antenna structures that convey radio-frequency signals greater than 10 GHz. The antenna structures may include overlapping first and second patches. The first patch may include a hole. A transmission line for the second patch may include a conductive via extending through the hole. The via may be coupled to a first end of a trace. A second end of the trace may be coupled to a feed terminal on the second patch over an additional via. The hole may be located within a central region of the first patch to allow the via to pass through the hole without electromagnetically coupling to the first patch. If desired, adjustable impedance matching circuits may be used to couple selected impedances to the antenna feeds that help ensure that the first and second patch antennas are sufficiently isolated from each other.Type: GrantFiled: July 16, 2018Date of Patent: July 28, 2020Assignee: Apple Inc.Inventors: Harish Rajagopalan, Jennifer M. Edwards, Simone Paulotto, Bilgehan Avser, Hao Xu, Rodney A. Gomez Angulo, Travis A. Barbieri, Georgios Atmatzakis, Matthew A. Mow
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Patent number: 10644758Abstract: An electronic device may include a peripheral conductive wall. A gap in the wall may divide the wall into first and second segments. The device may include a first antenna having a first resonating element arm formed from the first segment and a second antenna having a second resonating element arm formed from the second segment. A non-near-field communications transceiver may perform multiple-input and multiple-output (MIMO) operations using the first and second antennas. The gap may provide satisfactory isolation between the first and second antennas while the first and second antennas perform MIMO operations. Near-field communications circuitry may convey near-field communications signals over a conductive loop path that includes portions of the first and second segments and the antenna ground. The volume of the conductive loop path may extend across substantially all of a width of the electronic device.Type: GrantFiled: February 1, 2019Date of Patent: May 5, 2020Assignee: Apple Inc.Inventors: Erdinc Irci, Han Wang, Georgios Atmatzakis, Enrique Ayala Vazquez, Erica J. Tong, Xu Gao, Hongfei Hu, Nanbo Jin, Mattia Pascolini
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Publication number: 20200021019Abstract: An electronic device may be provided with antenna structures that convey radio-frequency signals greater than 10 GHz. The antenna structures may include overlapping first and second patches. The first patch may include a hole. A transmission line for the second patch may include a conductive via extending through the hole. The via may be coupled to a first end of a trace. A second end of the trace may be coupled to a feed terminal on the second patch over an additional via. The hole may be located within a central region of the first patch to allow the via to pass through the hole without electromagnetically coupling to the first patch. If desired, adjustable impedance matching circuits may be used to couple selected impedances to the antenna feeds that help ensure that the first and second patch antennas are sufficiently isolated from each other.Type: ApplicationFiled: July 16, 2018Publication date: January 16, 2020Inventors: Harish Rajagopalan, Jennifer M. Edwards, Simone Paulotto, Bilgehan Avser, Hao Xu, Rodney A. Gomez Angulo, Travis A. Barbieri, Georgios Atmatzakis, Matthew A. Mow
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Patent number: 10530042Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. The antennas may include antenna structures at opposing first and second ends of the electronic device. The antenna structures at a given end of the device may include antenna structures that are shared between multiple antennas. The electronic device may include a first antenna with an inverted-F antenna resonating element formed from portions of a peripheral conductive housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. A return path may bridge the gap. The electronic device may also include a second antenna that includes the antenna ground and an additional antenna resonating element. The antenna resonating element of the second antenna may be parasitically coupled to the return path of the inverted-F antenna at given frequencies.Type: GrantFiled: September 8, 2017Date of Patent: January 7, 2020Assignee: Apple Inc.Inventors: Bilgehan Avser, Georgios Atmatzakis, Hao Xu, Mattia Pascolini, Salih Yarga, Xu Gao, Xu Han, Yijun Zhou
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Patent number: 10476167Abstract: An electronic device may include antennas, a ground, and a housing. First and second gaps in the housing may define a segment that forms a resonating element for a first antenna. First, second, third, and fourth antenna feeds may be coupled between the segment and ground. Control circuitry may control adjustable components to place the device in first, second, third, or fourth modes. In the first and second modes, the first and fourth feeds convey signals at the same frequency using a multiple-input and multiple-output scheme while the second and third feeds are inactive. In the third mode, the second feed is active and the first, third, and fourth feeds are inactive. In the fourth mode, the third feed is active and the first, second, and fourth antenna feeds are inactive. Isolating return paths may be coupled between the segment and ground in the first and second modes.Type: GrantFiled: July 20, 2017Date of Patent: November 12, 2019Assignee: Apple Inc.Inventors: Enrique Ayala Vazquez, Nanbo Jin, Hongfei Hu, Han Wang, Erdinc Irci, Erica J. Tong, Matthew A. Mow, Ming-Ju Tsai, Liang Han, Georgios Atmatzakis, Mattia Pascolini
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Publication number: 20190165836Abstract: An electronic device may include a peripheral conductive wall. A gap in the wall may divide the wall into first and second segments. The device may include a first antenna having a first resonating element arm formed from the first segment and a second antenna having a second resonating element arm formed from the second segment. A non-near-field communications transceiver may perform multiple-input and multiple-output (MIMO) operations using the first and second antennas. The gap may provide satisfactory isolation between the first and second antennas while the first and second antennas perform MIMO operations. Near-field communications circuitry may convey near-field communications signals over a conductive loop path that includes portions of the first and second segments and the antenna ground. The volume of the conductive loop path may extend across substantially all of a width of the electronic device.Type: ApplicationFiled: February 1, 2019Publication date: May 30, 2019Inventors: Erdinc Irci, Han Wang, Georgios Atmatzakis, Enrique Ayala Vazquez, Erica J. Tong, Xu Gao, Hongfei Hu, Nanbo Jin, Mattia Pascolini
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Publication number: 20190081385Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. The antennas may include antenna structures at opposing first and second ends of the electronic device. The antenna structures at a given end of the device may include antenna structures that are shared between multiple antennas. The electronic device may include a first antenna with an inverted-F antenna resonating element formed from portions of a peripheral conductive housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. A return path may bridge the gap. The electronic device may also include a second antenna that includes the antenna ground and an additional antenna resonating element. The antenna resonating element of the second antenna may be parasitically coupled to the return path of the inverted-F antenna at given frequencies.Type: ApplicationFiled: September 8, 2017Publication date: March 14, 2019Inventors: Bilgehan Avser, Georgios Atmatzakis, Hao Xu, Mattia Pascolini, Salih Yarga, Xu Gao, Xu Han, Yijun Zhou
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Patent number: 10200092Abstract: An electronic device may include a peripheral conductive wall. A gap in the wall may divide the wall into first and second segments. The device may include a first antenna having a first resonating element arm formed from the first segment and a second antenna having a second resonating element arm formed from the second segment. A non-near-field communications transceiver may perform multiple-input and multiple-output (MIMO) operations using the first and second antennas. The gap may provide satisfactory isolation between the first and second antennas while the first and second antennas perform MIMO operations. Near-field communications circuitry may convey near-field communications signals over a conductive loop path that includes portions of the first and second segments and the antenna ground. The volume of the conductive loop path may extend across substantially all of a width of the electronic device.Type: GrantFiled: September 28, 2017Date of Patent: February 5, 2019Assignee: Apple Inc.Inventors: Erdinc Irci, Han Wang, Georgios Atmatzakis, Enrique Ayala Vazquez, Erica J. Tong, Xu Gao, Hongfei Hu, Nanbo Jin, Mattia Pascolini
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Patent number: 10193597Abstract: An electronic device may be provided with a conductive wall. A gap in the wall may divide the wall into first and second segments. A ground may be separated from the wall by first, second, and third slots that form radiating elements for first, second, and third non-near-field communications antennas. First and second conductive structures may be coupled between the wall and the ground. A near-field communications antenna may include a first feed terminal coupled to the first segment and a second feed terminal coupled to the second segment. The antenna may convey signals over a conductive loop path that includes portions of the first and second segments, the antenna ground, and the first and second conductive structures. A differential or single-ended signal transmission line may be coupled to the terminals. Phase shifters may configure the signals to be out of phase at the feed terminals.Type: GrantFiled: February 20, 2018Date of Patent: January 29, 2019Assignee: Apple Inc.Inventors: David Garrido Lopez, Umar Azad, Harish Rajagopalan, Georgios Atmatzakis, Rodney A. Gomez Angulo, Mattia Pascolini
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Publication number: 20190027833Abstract: An electronic device may include antennas, a ground, and a housing. First and second gaps in the housing may define a segment that forms a resonating element for a first antenna. First, second, third, and fourth antenna feeds may be coupled between the segment and ground. Control circuitry may control adjustable components to place the device in first, second, third, or fourth modes. In the first and second modes, the first and fourth feeds convey signals at the same frequency using a multiple-input and multiple-output scheme while the second and third feeds are inactive. In the third mode, the second feed is active and the first, third, and fourth feeds are inactive. In the fourth mode, the third feed is active and the first, second, and fourth antenna feeds are inactive. Isolating return paths may be coupled between the segment and ground in the first and second modes.Type: ApplicationFiled: July 20, 2017Publication date: January 24, 2019Inventors: Enrique Ayala Vazquez, Nanbo Jin, Hongfei Hu, Han Wang, Erdinc Irci, Erica J. Tong, Matthew A. Mow, Ming-Ju Tsai, Liang Han, Georgios Atmatzakis, Mattia Pascolini
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Patent number: 10158384Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. An antenna in the electronic device may have an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna may also include an indirectly-fed antenna resonating element that is indirectly fed by a harmonic mode of the inverted-F antenna resonating element via near field electromagnetic coupling. The indirectly-fed antenna resonating element may be a slot. The antenna ground may define at least three edges of the slot and the slot may be aligned with a dielectric-filled gap in the peripheral conductive housing structures. An adjustable circuit may be coupled across the slot to tune the indirectly-fed antenna resonating element.Type: GrantFiled: September 8, 2017Date of Patent: December 18, 2018Assignee: Apple Inc.Inventors: Salih Yarga, Xu Gao, Georgios Atmatzakis, Xu Han, Bilgehan Avser, Hao Xu, Yijun Zhou, Mattia Pascolini