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Ming-ju Tsai patents

Recent patents with Ming-ju Tsai listed as an inventor - additional entries may be under other spellings.


Ming-ju Tsai - Related organizations: Apple Inc. patents, Apple Inc patents

Electronic device antenna with switchable return paths

02/02/17 - 20170033460 - An electronic device may have wireless circuitry with antennas. An antenna resonating element arm for an antenna may be formed from conductive housing structures running along the edges of a device. The antenna may have a pair of switchable return paths that bridge a slot between the antenna resonating element
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Nanbo Jin, Matthew A. Mow, Liang Han, Ming-ju Tsai, Erica J. Tong, Erdinc Irci, Salih Yarga, Mattia Pascolini, Benjamin Shane Bustle, Ruben Caballero

Electronic device with tunable hybrid antennas

11/17/16 - 20160336643 - An electronic device may have hybrid antennas that include slot antenna resonating elements formed from slots in a ground plane and planar inverted-F antenna resonating elements. The planar inverted-F antenna resonating elements may each have a planar metal member that overlaps one of the slots. The slot of each slot
Inventors: Mattia Pascolini, Umar Azad, Rodney A. Gomez Angulo, Erdinc Irci, Qingxiang Li, Matthew A. Mow, Harish Rajagopalan, Miroslav Samardzija, Ming-ju Tsai

Electronic device with configurable symmetric antennas

11/03/16 - 20160322699 - An electronic device may have wireless circuitry with antennas. An antenna resonating element arm for an antenna may be formed from peripheral conductive structures running along the edges of a device housing that are separated from a round by an elongated opening. The electronic device may have a central longitudinal
Inventors: Matthew A. Mow, Xu Han, James G. Judkins, Liang Han, Mattia Pascolini, Ming-ju Tsai, Nanbo Jin, Thomas E. Biedka, Victor C. Lee, Yuehui Ouyang

Electronic device with peripheral hybrid antenna

10/20/16 - 20160308271 - An electronic device may have wireless circuitry with antennas. An antenna resonating element arm for an antenna may be formed from peripheral conductive structures running along the edges of a device housing. Elongated conductive members may longitudinally divide openings between the peripheral conductive housing structures and the ground. The elongated
Inventors: Nanbo Jin, Anand Lakshmanan, Enrique Ayala Vazquez, Erica J. Tong, Hongfei Hu, Matthew A. Mow, Mattia Pascolini, Ming-ju Tsai

Electronic device with impedance measurement circuitry

07/14/16 - 20160204821 - An electronic device may be provided with wireless circuitry. The wireless circuitry may include wireless transceiver circuitry that transmits signals towards an antenna. A signal path may carry the transmitted signals to the antenna. Reflected signals from the antenna may be carried along the signal path towards the transceiver circuitry.
Inventors: Liang Han, Matthew A. Mow, Thomas E. Biedka, Ming-ju Tsai, James G. Judkins, Victor C. Lee, Mattia Pascolini

Electronic device having antenna tuning integrated circuits with sensors

07/14/16 - 20160204820 - An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. An antenna may have an antenna feed that is coupled to a radio-frequency transceiver with a transmission line. An impedance matching circuit may be coupled to the antenna feed to match the
Inventors: Matthew A. Mow, Liang Han, Ming-ju Tsai, Thomas E. Biedka, Victor Lee, James G. Judkins, Mattia Pascolini

Electronic device with shared antenna structures and balun

07/07/16 - 20160197401 - An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-F antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or
Inventors: Yuehui Ouyang, Dean F. Darnell, Enrique Ayala Vazquez, Erica J. Tong, Hongfei Hu, Matthew A. Mow, Mattia Pascolini, Ming-ju Tsai, Nanbo Jin, Robert W. Schlub

Wireless electronic device with multiradio controller integrated circuit

06/16/16 - 20160174293 - An electronic device may be provided with wireless circuitry. An application processor may generate wireless data that is to be transmitted using the wireless circuitry and may process wireless data that has been received using the wireless circuitry. The wireless circuitry may include multiple baseband processors, multiple associated radios, and
Inventors: Matthew A. Mow, Mattia Pascolini, Thomas E. Biedka, Liang Han, Ming-ju Tsai, Victor Lee, James G. Judkins

Wireless electronic device with calibrated reflectometer

04/07/16 - 20160097833 - An electronic device may have control circuitry that uses a reflectometer to measure antenna impedance during operation. The reflectometer may have a directional coupler that is coupled between radio-frequency transceiver circuitry and an antenna. A calibration circuit may be coupled between the directional coupler and the antenna. The calibration circuit
Inventors: Liang Han, Matthew A. Mow, Thomas E. Biedka, Mattia Pascolini, Ming-ju Tsai, James G. Judkins, Victor Lee, Robert W. Schlub

Electronic device antenna with interference mitigation circuitry

03/03/16 - 20160064812 - An electronic device may be provided with an antenna. The antenna may have an antenna resonating element and an antenna ground. The antenna resonating element may be formed from peripheral conductive housing structures. An audio jack or other connector may be mounted in an opening in the peripheral conductive housing
Inventors: Liang Han, Ming-ju Tsai, Matthew A. Mow, Yijun Zhou, Mattia Pascolini, Salih Yarga, Enrique Ayala Vazquez, Hongfei Hu, Xu Han, Robert W. Schlub

Electronic device antenna with reduced lossy mode

03/03/16 - 20160064801 - An electronic device may be provided with an antenna. The antenna may have an antenna resonating element and an antenna ground. An adjustable inductor may be coupled between the antenna resonating element and the antenna ground. An antenna feed may have a positive feed terminal coupled to the antenna resonating
Inventors: Liang Han, Matthew A. Mow, Ming-ju Tsai, Yijun Zhou, Hongfei Hu, Salih Yarga, Mattia Pascolini, Yuehui Ouyang, Erdinc Irci, Enrique Ayala Vazquez, Robert W. Schlub

Electronic device with adjustable wireless circuitry

12/24/15 - 20150372656 - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include antennas that are tuned, adjustable impedance matching circuitry, antenna port selection circuitry, and adjustable transceiver circuitry. Wireless circuit adjustments may be made by ascertaining a current
Inventors: Matthew A. Mow, Thomas E. Biedka, Liang Han, Ming-ju Tsai, James G. Judkins, Enrique Ayala Vazquez, Jayesh Nath, Hongfei Hu, Nanbo Jin, Hao Xu, Yijun Zhou, Yuehui Ouyang, Victor Lee, Mattia Pascolini, Ruben Caballero

Electronic device having sensors and antenna monitor for controlling wireless operation

11/26/15 - 20150341073 - An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include an antenna that is tuned using tunable components. The control circuitry may gather information on the current operating mode of the. electronic device, sensor data from
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Mattia Pascolini, Yuehui Ouyang, Salih Yarga, Yijun Zhou, Erdinc Lrci, Jayesh Nath, Ming-ju Tsai, Matthew A. Mow, Liang Han, James G. Judkins, Robert W. Schlub

Electronic device with shared antenna structures and balun

09/03/15 - 20150249292 - An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-F antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or
Inventors: Yuehui Ouyang, Dean F. Darnell, Enrique Ayala Vazquez, Erica J. Tong, Hongfei Hu, Matthew A. Mow, Mattia Pascolini, Ming-ju Tsai, Nanbo Jin, Robert W. Schlub

Antenna with tunable high band parasitic element

11/13/14 - 20140333496 - Electronic devices may be provided that include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element and an antenna ground. The antenna resonating element may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower
Inventors: Hongfei Hu, Mattia Pascolini, Enrique Ayala Vazquez, Matthew A. Mow, Dean F. Darnell, Ming-ju Tsai, Robert W. Schlub, Nanbo Jin, Yuehui Ouyang, Liang Han, David Pratt

Electronic device antenna with multiple feeds for covering three communications bands

11/13/14 - 20140333495 - Electronic devices may be provided that include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element and an antenna ground. The antenna resonating element may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Mattia Pascolini, Matthew A. Mow, Ming-ju Tsai, Robert W. Schlub, Dean F. Darnell, Yuehui Ouyang, Nanbo Jin, Liang Han, David Pratt

Electronic device with multiple antenna feeds and adjustable filter and matching circuitry

11/06/14 - 20140329558 - Electronic devices may include antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. A first transceiver may be coupled to the first feed using a first circuit. A second transceiver may be coupled to the second feed using a second circuit. The
Inventors: Dean F. Darnell, Enrique Ayala Vazquez, Hongfei Hu, Yuehui Ouyang, Mattia Pascolini, Robert W. Schlub, Peter Bevelacqua, Hao Xu, Jayesh Nath, Yijun Zhou, Nanbo Jin, David Pratt, Matthew A. Mow, Ming-ju Tsai, Liang Han, Thomas E. Biedka

Methods and apparatus for testing electronic devices under specified radio-frequency voltage and current stress

10/09/14 - 20140302797 - Test systems for characterizing devices under test (DUTs) are provided. A test system for testing a DUT in a shunt configuration may include a signal generator and a matching network that is coupled between the signal generator and the DUT and that is optimized to apply desired voltage/current stress to
Inventors: Liang Han, Matthew A. Mow, James G. Judkins, Thomas E. Biedka, Ming-ju Tsai, Robert W. Schlub

Electronic device with hybrid inverted-f slot antenna

09/18/14 - 20140266941 - An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member. A segment of the peripheral metal member may be separated from a ground by a slot. An antenna feed may have
Inventors: Enrique Ayala Vazquez, Hongfei Hu, Mattia Pascolini, Yuehui Ouyang, Yijun Zhou, Matthew A. Mow, Robert W. Schlub, Erdinc Irci, Salih Yarga, Ming-ju Tsai, Liang Han, Thomas E. Biedka, Nicholas S. Reimnitz

Methods for validating radio-frequency test stations

06/19/14 - 20140167794 - A manufacturing system for assembling wireless electronic devices is provided. The manufacturing system may include test stations for testing the radio-frequency performance of components that are to be assembled within the electronic devices. A reference test station may be calibrated using calibration coupons having known radio-frequency characteristics. The calibration coupons
Inventors: Jayesh Nath, Liang Han, Matthew A. Mow, Ming-ju Tsai, Joshua G. Nickel, Hao Xu, Peter Bevelacqua, Mattia Pascolini, Robert W. Schiub, Ruben Caballero

Methods and apparatus for performing coexistence testing for multi-antenna electronic devices

03/27/14 - 20140087668 - Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to
Inventors: Matthew A. Mow, Thomas E. Biedka, Ming-ju Tsai, Liang Han, Xu Han, Anand Lakshmanan, Nanbo Jin, Hongfei Hu, Dean F. Darnell, Joshua G. Nickel, Jayesh Nath, Yijun Zhou, Hao Xu, Yuehui Ouyang, Nirali Shah, Mattia Pascolini, Robert W. Schlub, Ruben Caballero


### Ming-ju Tsai patent invention listings

The bibliographic references displayed about Ming-ju Tsai's patents are for a recent sample of Ming-ju Tsai's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Ming-ju Tsai filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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