Patents by Inventor Yuancheng Xu
Yuancheng Xu 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: 20250087869Abstract: An electronic device may be provided with sidewalls and a conductive plate. A segment of the sidewalls may form a radiating arm of an antenna. A display may be mounted to the sidewalls. The display may include a conductive frame and a flexible printed circuit. The flexible circuit may have a bend. Conductive foam may short a conductive trace on the flexible circuit to the conductive frame near the bend. Low injection pressure overmolding (LIPO) may be molded over the flexible circuit, the foam, and the frame. A conductive spring may short the frame to the conductive plate. The spring may include a wider and/or thinner portion that optionally includes one or more notches for reducing its inductance. The conductive plate, the spring, the frame, the foam, and the conductive trace may form part of the antenna ground for the antenna.Type: ApplicationFiled: September 11, 2023Publication date: March 13, 2025Inventors: Ming Chen, Enrique Ayala Vazquez, Joel Ravi, Woonyong Bae, Laura M Burke, Yuancheng Xu, Bhaskara R Rupakula, Haozhan Tian, Salih Yarga, Erdinc Irci, Tiejun Yu, Seyed Mohammad Amjadi, Ahmed Ali Abdelhaliem Nafe, Hongfei Hu, Carlo Di Nallo, Mattia Pascolini
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Patent number: 12062858Abstract: An electronic device may be provided with peripheral conductive housing structures having first and second segments. The device may include an antenna having a resonating arm formed from the first segment, an antenna ground, and a tuning element. The tuning element may have first, second, and third terminals. The first terminal may be coupled to the second segment. The antenna may have a switchable loop path that includes a first path from the second terminal to the first segment, a second path from first segment to a first point on the antenna ground, a portion of the antenna ground from the first point to a second point, and a third path from the second point to the third terminal. The tuning element may selectively activate the switchable loop path to boost performance of the antenna in a frequency band between 3300 MHz and 5000 MHz when needed.Type: GrantFiled: June 24, 2022Date of Patent: August 13, 2024Assignee: Apple Inc.Inventors: Enrique Ayala Vazquez, Yuancheng Xu, Hongfei Hu, Hao Xu, Yiren Wang, Han Wang, Sidharath Jain, Nikolaj Peter Iversen Kammersgaard, Haozhan Tian, Yuan Tao, Carlo Di Nallo, Mattia Pascolini
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Publication number: 20240097324Abstract: An electronic device may be provided with a first antenna fed by a first path and a second antenna fed by a second path. A first coupler may be disposed on the first path, a second coupler may be disposed on the second path, and a feedback path may couple the couplers to a receiver. A low-pass filter may be disposed on the second path. The first antenna may transmit signals in a low band. Some of the signals may couple onto the second antenna. The second coupler may pass the coupled signals to the receiver. Control circuitry may generate a scattering parameter value characterizing the coupling of the signals from the first antenna onto the second antenna. The scattering parameter value may be used to determine when to switch the first antenna out of use and the second antenna into use for covering the low band.Type: ApplicationFiled: September 16, 2022Publication date: March 21, 2024Inventors: Yuancheng Xu, Thomas E Biedka, Jingni Zhong, Hongfei Hu, Simran Singh, Allen S Kwon, Carlo Di Nallo, Jayesh Nath, Mattia Pascolini
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Publication number: 20240079786Abstract: An electronic device may be provided with peripheral conductive housing structures, a first antenna, and a second antenna. A gap may divide the housing structures into a first segment forming an arm of the first antenna and a second segment forming an arm of the second antenna. A first feed terminal may be coupled to the first segment and a second feed terminal may be coupled to the second segment. Switchable components may be coupled in parallel between the first and second feed terminals across the gap. The switchable components may be adjusted to tune the frequency response of the first and/or second antenna. The switchable components may have a first state in which only the first feed terminal feeds the first antenna and may have a second state in which both the first and second feed terminals feed the first antenna.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Han Wang, Aobo Li, Victor C Lee, Yuancheng Xu, Ahmed Ali Abdelhaliem Nafe, Enrique Ayala Vazquez, Yiren Wang, Yuan Tao, Christopher Q Ma, Zhiheng Zhou, Sherry Cao, Dale T Morgan, Timothy L Stickles, Hao Xu, Hongfei Hu, Mattia Pascolini
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Publication number: 20240079777Abstract: An electronic device may be provided with an antenna having a resonating element formed from a segment of peripheral conductive housing structures. A speaker may be aligned with first openings in the segment. A vent may be aligned with second openings in the segment. A connector may protrude through the segment. A trace combiner for the antenna may be patterned onto the speaker and may be coupled to the segment. Tuners for the antenna may be disposed on first and second flexible printed circuits that extend along opposing sides of the connector. The tuners may be controlled through the speaker. The second flexible printed circuit may extend along the vent. The vent may have a vent cowling with a cut-out region next to the tuner on the second flexible printed circuit.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Yiren Wang, Yuan Tao, Hao Xu, Hongfei Hu, Enrique Ayala Vazquez, Ming-Ju Tsai, Sidharath Jain, Haozhan Tian, Yuancheng Xu, Harlan S Dannenberg, Eric W Bates, Peter A Dvorak, Nicole E Cazares, Obinna O Onyemepu, Victor C Lee, Han Wang
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Publication number: 20240079785Abstract: An electronic device may be provided with an antenna having a resonating element formed from a segment of peripheral conductive housing structures. A speaker may be aligned with first openings in the segment. A vent may be aligned with second openings in the segment. A connector may protrude through the segment. A trace combiner for the antenna may be patterned onto the speaker and may be coupled to the segment. Tuners for the antenna may be disposed on first and second flexible printed circuits that extend along opposing sides of the connector. The tuners may be controlled through the speaker. The second flexible printed circuit may extend along the vent. The vent may have a vent cowling with a cut-out region next to the tuner on the second flexible printed circuit.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Yiren Wang, Yuan Tao, Hao Xu, Yuancheng Xu, Enrique Ayala Vazquez, Nikolaj P. Kammersgaard, Eric W. Bates, Peter A. Dvorak, Victor C. Lee, Han Wang
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Publication number: 20240079757Abstract: An electronic device may be provided with peripheral conductive housing structures having first and second segments. A flexible printed circuit may have a first tail that extends along the first and second segments and a second tail that extends along the first segment. A conductive trace on the first tail may be coupled to an antenna feed terminal on the second segment. A conductive trace on the second tail may couple the conductive trace on the first tail to the first segment. A tuner and filters may be disposed on the flexible printed circuit and may be coupled to the conductive traces. The conductive trace on the second tail may have a tapered width. An antenna in the device may have a resonating element that includes both the first and second segments, thereby allowing the antenna to exhibit a wide bandwidth from 1.1-5 GHz.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Seyed Mohammad Amjadi, Yuan Tao, Hao Xu, Yiren Wang, Xue Yang, Mattia Pascolini, Hongfei Hu, Enrique Ayala Vazquez, Ming-Ju Tsai, Ana Papio Toda, Yuancheng Xu, Jingni Zhong, Nikolaj P Kammersgaard, Sidharath Jain, Haozhan Tian, Ming Chen, Linqiang Zou
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Publication number: 20240079766Abstract: An electronic device may be provided with peripheral conductive housing structures having a first segment and a second segment. First and second antenna feeds may be coupled between the first segment and the ground structures. The first feed may convey signals in a first band and the second feed may convey signals in a second band. The first segment may be near-field coupled to a slot between the second segment and the ground structures. A first tuner may be coupled between the second segment and the ground structures and may adjust a resonance of the first segment in the first and second bands. A second tuner coupled to the first feed may perform impedance matching in the first band and aperture tuning in the second band. A third tuner coupled to the second feed may perform impedance matching in the second band and aperture tuning in the first band.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Yuancheng Xu, Enrique Ayala Vazquez, Nikolaj P Kammersgaard, Yiren Wang, Yuan Tao, Han Wang, Haozhan Tian, Hao Xu, Hongfei Hu, Mattia Pascolini
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Publication number: 20240079778Abstract: An electronic device may be provided with an antenna having a resonating element formed from a segment of peripheral conductive housing structures. A speaker may be aligned with first openings in the segment. A vent may be aligned with second openings in the segment. A connector may protrude through the segment. A trace combiner for the antenna may be patterned onto the speaker and may be coupled to the segment. Tuners for the antenna may be disposed on first and second flexible printed circuits that extend along opposing sides of the connector. The tuners may be controlled through the speaker. The second flexible printed circuit may extend along the vent. The vent may have a vent cowling with a cut-out region next to the tuner on the second flexible printed circuit.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Enrique Ayala Vazquez, Ming-Ju Tsai, Yiren Wang, Yuan Tao, Hao Xu, Sidharath Jain, Haozhan Tian, Yuancheng Xu, Eric W. Bates, Peter A. Dvorak, Harlan S. Dannenberg, Rees S. Parker, Obinna O. Onyemepu, Victor C. Lee, Han Wang, Hongfei Hu
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Publication number: 20230420840Abstract: An electronic device may be provided with peripheral conductive housing structures having first and second segments. The device may include an antenna having a resonating arm formed from the first segment, an antenna ground, and a tuning element. The tuning element may have first, second, and third terminals. The first terminal may be coupled to the second segment. The antenna may have a switchable loop path that includes a first path from the second terminal to the first segment, a second path from first segment to a first point on the antenna ground, a portion of the antenna ground from the first point to a second point, and a third path from the second point to the third terminal. The tuning element may selectively activate the switchable loop path to boost performance of the antenna in a frequency band between 3300 MHz and 5000 MHz when needed.Type: ApplicationFiled: June 24, 2022Publication date: December 28, 2023Inventors: Enrique Ayala Vazquez, Yuancheng Xu, Hongfei Hu, Hao Xu, Yiren Wang, Han Wang, Sidharath Jain, Nikolaj Peter Iversen Kammersgaard, Haozhan Tian, Yuan Tao, Carlo Di Nallo, Mattia Pascolini
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Publication number: 20230170927Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.Type: ApplicationFiled: January 23, 2023Publication date: June 1, 2023Inventors: Liang Han, Enrique Ayala Vazquez, Thomas E. Biedka, Hongfei Hu, Erdinc Irci, Nanbo Jin, James G. Judkins, Victor C. Lee, Matthew A. Mow, Mattia Pascolini, Ming-Ju Tsai, Yiren Wang, Yuancheng Xu, Yijun Zhou
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Patent number: 11569858Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.Type: GrantFiled: June 10, 2020Date of Patent: January 31, 2023Assignee: Apple Inc.Inventors: Liang Han, Enrique Ayala Vazquez, Thomas E. Biedka, Hongfei Hu, Erdinc Irci, Nanbo Jin, James G. Judkins, Victor C. Lee, Matthew A. Mow, Mattia Pascolini, Ming-Ju Tsai, Yiren Wang, Yuancheng Xu, Yijun Zhou
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Patent number: 11456768Abstract: An electronic device may include control circuitry, sensors, and wireless circuitry having antennas. The sensors may generate sensor data that is used by the control circuitry to identify an operating environment for the device. The sensor data may include a grip map generated by a touch-sensitive display, infrared facial recognition image signals or other image signals, an angle of arrival of sound received by a set of microphones, impedance data from an impedance sensor, and any other desired sensor data. The control circuitry may use the sensor data, radio-frequency spatial ranging data, information about whether audio is being played over an ear speaker, and/or information about communications protocols in use to identify the operating environment. The control circuitry may adjust antenna settings for the wireless circuitry based on the identified operating environment to ensure that the antennas operate with satisfactory antenna efficiency regardless of operating conditions.Type: GrantFiled: May 12, 2020Date of Patent: September 27, 2022Assignee: Apple Inc.Inventors: Liang Han, Matthew A. Mow, Mattia Pascolini, Ruben Caballero, Thomas E. Biedka, Yuancheng Xu, Iyappan Ramachandran
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Patent number: 11322840Abstract: An electronic device may be provided with wireless circuitry and a housing with upper and lower ends. The lower end may include first and second open slot antennas that are directly fed by respective feeds and that radiate in a cellular ultra-high band. The lower end may also include first and second inverted-F antennas. The upper end may include third and fourth inverted-F antennas. The first inverted-F antenna may have a first feed that conveys currents below 2700 MHz and a second feed that conveys antenna currents in the cellular ultra-high band, a wireless local area network band, and/or ultra-wideband frequency bands. If desired, the upper end may include a third open slot antenna that is directly fed by a corresponding antenna feed and that radiates in the cellular ultra-high band and/or in the ultra-wideband frequency bands.Type: GrantFiled: September 18, 2020Date of Patent: May 3, 2022Assignee: Apple Inc.Inventors: Yiren Wang, Daisong Zhang, Erdinc Irci, Han Wang, Hongfei Hu, Jingni Zhong, Liang Han, Mattia Pascolini, Ming Chen, Nanbo Jin, Tiejun Yu, Yijun Zhou, Yuan Tao, Yuancheng Xu
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Publication number: 20220094059Abstract: An electronic device may be provided with wireless circuitry and a housing with upper and lower ends. The lower end may include first and second open slot antennas that are directly fed by respective feeds and that radiate in a cellular ultra-high band. The lower end may also include first and second inverted-F antennas. The upper end may include third and fourth inverted-F antennas. The first inverted-F antenna may have a first feed that conveys currents below 2700 MHz and a second feed that conveys antenna currents in the cellular ultra-high band, a wireless local area network band, and/or ultra-wideband frequency bands. If desired, the upper end may include a third open slot antenna that is directly fed by a corresponding antenna feed and that radiates in the cellular ultra-high band and/or in the ultra-wideband frequency bands.Type: ApplicationFiled: September 18, 2020Publication date: March 24, 2022Inventors: Yiren Wang, Daisong Zhang, Erdinc Irci, Han Wang, Hongfei Hu, Jingni Zhong, Liang Han, Mattia Pascolini, Ming Chen, Nanbo Jin, Tiejun Yu, Yijun Zhou, Yuan Tao, Yuancheng Xu
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Patent number: 11228345Abstract: A device with near-field communications (NFC) capabilities is provided. A housing may include first and second segments and a support plate separated from the segments by a slot. A first inductor may be coupled between the first segment and the plate. A second inductor may be coupled between the second segment and the plate. A transceiver may have a first signal terminal coupled to the first segment over a first path and a second signal terminal coupled to the second segment over a second path. The transceiver may convey differential signals in an NFC band over a loop path for an NFC antenna that includes the first conductive path, the first segment, the first inductor, a portion of the plate between the first and second inductors, the second inductor, the second segment, and the second conductive path. This may optimize wireless performance and volume for the NFC antenna.Type: GrantFiled: September 22, 2020Date of Patent: January 18, 2022Assignee: Apple Inc.Inventors: Yiren Wang, Daisong Zhang, Erdinc Irci, Han Wang, Hongfei Hu, Jingni Zhong, Liang Han, Mattia Pascolini, Ming Chen, Nanbo Jin, Tiejun Yu, Yijun Zhou, Yuan Tao, Yuancheng Xu
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Publication number: 20210218430Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.Type: ApplicationFiled: June 10, 2020Publication date: July 15, 2021Inventors: Liang Han, Enrique Ayala Vazquez, Thomas E. Biedka, Hongfei Hu, Erdinc Irci, Nanbo Jin, James G. Judkins, Victor C. Lee, Matthew A. Mow, Mattia Pascolini, Ming-Ju Tsai, Yiren Wang, Yuancheng Xu, Yijun Zhou
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Publication number: 20200274570Abstract: An electronic device may include control circuitry, sensors, and wireless circuitry having antennas. The sensors may generate sensor data that is used by the control circuitry to identify an operating environment for the device. The sensor data may include a grip map generated by a touch-sensitive display, infrared facial recognition image signals or other image signals, an angle of arrival of sound received by a set of microphones, impedance data from an impedance sensor, and any other desired sensor data. The control circuitry may use the sensor data, radio-frequency spatial ranging data, information about whether audio is being played over an ear speaker, and/or information about communications protocols in use to identify the operating environment. The control circuitry may adjust antenna settings for the wireless circuitry based on the identified operating environment to ensure that the antennas operate with satisfactory antenna efficiency regardless of operating conditions.Type: ApplicationFiled: May 12, 2020Publication date: August 27, 2020Inventors: Liang Han, Matthew A. Mow, Mattia Pascolini, Ruben Caballero, Thomas E. Biedka, Yuancheng Xu, Iyappan Ramachandran
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Patent number: 10693516Abstract: An electronic device may include control circuitry, sensors, and wireless circuitry having antennas. The sensors may generate sensor data that is used by the control circuitry to identify an operating environment for the device. The sensor data may include a grip map generated by a touch-sensitive display, infrared facial recognition image signals or other image signals, an angle of arrival of sound received by a set of microphones, impedance data from an impedance sensor, and any other desired sensor data. The control circuitry may use the sensor data, radio-frequency spatial ranging data, information about whether audio is being played over an ear speaker, and/or information about communications protocols in use to identify the operating environment. The control circuitry may adjust antenna settings for the wireless circuitry based on the identified operating environment to ensure that the antennas operate with satisfactory antenna efficiency regardless of operating conditions.Type: GrantFiled: June 25, 2018Date of Patent: June 23, 2020Assignee: Apple Inc.Inventors: Liang Han, Matthew A. Mow, Mattia Pascolini, Ruben Caballero, Thomas E. Biedka, Yuancheng Xu, Iyappan Ramachandran
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Publication number: 20190393918Abstract: An electronic device may include control circuitry, sensors, and wireless circuitry having antennas. The sensors may generate sensor data that is used by the control circuitry to identify an operating environment for the device. The sensor data may include a grip map generated by a touch-sensitive display, infrared facial recognition image signals or other image signals, an angle of arrival of sound received by a set of microphones, impedance data from an impedance sensor, and any other desired sensor data. The control circuitry may use the sensor data, radio-frequency spatial ranging data, information about whether audio is being played over an ear speaker, and/or information about communications protocols in use to identify the operating environment. The control circuitry may adjust antenna settings for the wireless circuitry based on the identified operating environment to ensure that the antennas operate with satisfactory antenna efficiency regardless of operating conditions.Type: ApplicationFiled: June 25, 2018Publication date: December 26, 2019Inventors: Liang Han, Matthew A. Mow, Mattia Pascolini, Ruben Caballero, Thomas E. Biedka, Yuancheng Xu, Iyappan Ramachandran