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Xiangdong Zhang
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Westford, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Waveform-tailored average power tracking
Patent number
11,824,500
Issue date
Nov 21, 2023
QUALCOMM Incorporated
Xiangdong Zhang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Radio frequency (RF) amplifier bias circuit
Patent number
11,509,269
Issue date
Nov 22, 2022
QUALCOMM Incorporated
Jisun Ryu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Stability improvement circuit for radio frequency (RF) power amplif...
Patent number
11,323,079
Issue date
May 3, 2022
QUALCOMM Incorporated
Jing-Hwa Chen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
In-situ measurement of the delay between the envelope and the RF si...
Patent number
10,992,308
Issue date
Apr 27, 2021
QUALCOMM Incorporated
Chirag Sthalekar
G04 - HOROLOGY
Information
Patent Grant
Current-limiting circuit for a power amplifier
Patent number
10,979,002
Issue date
Apr 13, 2021
QUALCOMM Incorporated
Jing-Hwa Chen
G05 - CONTROLLING REGULATING
Information
Patent Grant
Switch linearizer
Patent number
10,491,209
Issue date
Nov 26, 2019
QUALCOMM Incorporated
Marc Gerald Dicicco
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Systems and methods providing a matching circuit that bypasses a pa...
Patent number
10,491,172
Issue date
Nov 26, 2019
QUALCOMM Incorporated
Tianzuo Xi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Methods and apparatuses for ruggedizing a power amplifier against b...
Patent number
10,381,988
Issue date
Aug 13, 2019
QUALCOMM Incorporated
Yanjie Sun
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Varying thickness inductor
Patent number
10,354,795
Issue date
Jul 16, 2019
QUALCOMM Incorporated
Daeik Daniel Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Step attenuator with constant input capacitance
Patent number
9,985,601
Issue date
May 29, 2018
QUALCOMM Incorporated
Xinwei Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency multiplexer
Patent number
9,906,318
Issue date
Feb 27, 2018
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Tunable diplexers in three-dimensional (3D) integrated circuits (IC...
Patent number
9,813,043
Issue date
Nov 7, 2017
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Tunable diplexers in three-dimensional (3D) integrated circuits (IC...
Patent number
9,634,640
Issue date
Apr 25, 2017
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Quadrature current-combining linearizing circuit for generating arb...
Patent number
9,467,196
Issue date
Oct 11, 2016
QUALCOMM Incorporated
James Francis Imbornone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Varying thickness inductor
Patent number
9,449,753
Issue date
Sep 20, 2016
QUALCOMM Incorporated
Daeik Daniel Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Tunable diplexers in three-dimensional (3D) integrated circuits (IC...
Patent number
9,401,689
Issue date
Jul 26, 2016
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Control of transmit power and adjustment of antenna tuning network...
Patent number
9,392,558
Issue date
Jul 12, 2016
QUALCOMM Incorporated
Puay Hoe See
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tunable diplexers in three-dimensional (3D) integrated circuits (IC...
Patent number
9,331,665
Issue date
May 3, 2016
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Diplexer design using through glass via technology
Patent number
9,203,373
Issue date
Dec 1, 2015
QUALCOMM Incorporated
Chengjie Zuo
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Analog switch for RF front end
Patent number
9,128,502
Issue date
Sep 8, 2015
QUALCOMM Incorporated
James Francis Imbornone
G05 - CONTROLLING REGULATING
Information
Patent Grant
Adaptive tuning of an impedance matching circuit in a wireless device
Patent number
9,054,756
Issue date
Jun 9, 2015
QUALCOMM Incorporated
Puay Hoe See
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Impedance matching circuits with multiple configurations
Patent number
8,975,981
Issue date
Mar 10, 2015
QUALCOMM Incorporated
Puay Hoe See
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power detector with temperature compensation
Patent number
8,897,727
Issue date
Nov 25, 2014
QUALCOMM Incorporated
Xinwei Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for antenna tuning and transmit path selection
Patent number
8,761,296
Issue date
Jun 24, 2014
QUALCOMM Incorporated
Xiangdong Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Remote front-end for a multi-antenna station
Patent number
8,509,708
Issue date
Aug 13, 2013
QUALCOMM Incorporated
Xiangdong Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stepped gain mixer
Patent number
8,229,043
Issue date
Jul 24, 2012
QUALCOMM Incorporated
Xinwei Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
I/Q imbalance estimation and correction in a communication system
Patent number
8,000,382
Issue date
Aug 16, 2011
QUALCOMM Incorporated
Hakan Inanoglu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radiated power control for a multi-antenna transmission
Patent number
7,747,271
Issue date
Jun 29, 2010
QUALCOMM Incorporated
Jay Rodney Walton
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Active bias network circuit for radio frequency amplifier
Patent number
6,373,339
Issue date
Apr 16, 2002
International Business Machines Corporation
Phillip Antognetti
G05 - CONTROLLING REGULATING
Information
Patent Grant
Active bias network circuit for radio frequency amplifier
Patent number
6,259,324
Issue date
Jul 10, 2001
International Business Machines Corporation
Phillip Antognetti
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
WAVEFORM-TAILORED AVERAGE POWER TRACKING
Publication number
20240039480
Publication date
Feb 1, 2024
QUALCOMM Incorporated
Xiangdong Zhang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
POWER AMPLIFIER WITH OVERVOLTAGE PROTECTION IN INPUT MATCHING STAGE
Publication number
20230034531
Publication date
Feb 2, 2023
QUALCOMM Incorporated
Zhenying LUO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Waveform-Tailored Average Power Tracking
Publication number
20220200535
Publication date
Jun 23, 2022
QUALCOMM Incorporated
Xiangdong Zhang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
RADIO FREQUENCY (RF) AMPLIFIER BIAS CIRCUIT
Publication number
20220052656
Publication date
Feb 17, 2022
QUALCOMM Incorporated
Jisun RYU
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
STABILITY IMPROVEMENT CIRCUIT FOR RADIO FREQUENCY (RF) POWER AMPLIF...
Publication number
20210273615
Publication date
Sep 2, 2021
QUALCOMM Incorporated
Jing-Hwa CHEN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MULTI-MODE HYBRID RADIO FREQUENCY (RF) POWER AMPLIFIER WITH DRIVER...
Publication number
20200099342
Publication date
Mar 26, 2020
QUALCOMM Incorporated
Yan Kit Gary HAU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHODS AND APPARATUSES FOR RUGGEDIZING A POWER AMPLIFIER AGAINST B...
Publication number
20190089314
Publication date
Mar 21, 2019
QUALCOMM Incorporated
Yanjie SUN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CURRENT-LIMITING CIRCUIT FOR A POWER AMPLIFIER
Publication number
20190020317
Publication date
Jan 17, 2019
QUALCOMM Incorporated
Jing-Hwa CHEN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Systems and Methods Providing a Matching Circuit that Bypasses a Pa...
Publication number
20180048270
Publication date
Feb 15, 2018
QUALCOMM Incorporated
Tianzuo Xi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
VARYING THICKNESS INDUCTOR
Publication number
20160358709
Publication date
Dec 8, 2016
QUALCOMM Incorporated
Daeik Daniel Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TUNABLE DIPLEXERS IN THREE-DIMENSIONAL (3D) INTEGRATED CIRCUITS (IC...
Publication number
20160204758
Publication date
Jul 14, 2016
QUALCOMM Incorporated
Chengjie Zuo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
FREQUENCY MULTIPLEXER
Publication number
20150304059
Publication date
Oct 22, 2015
QUALCOMM Incorporated
Chengjie Zuo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
QUADRATURE CURRENT-COMBINING LINEARIZING CIRCUIT FOR GENERATING ARB...
Publication number
20150222319
Publication date
Aug 6, 2015
QUALCOMM Incorporated
James Francis Imbornone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DYNAMIC BIAS TO IMPROVE SWITCH LINEARITY
Publication number
20150105032
Publication date
Apr 16, 2015
QUALCOMM Incorporated
Xinwei WANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VARYING THICKNESS INDUCTOR
Publication number
20150061813
Publication date
Mar 5, 2015
QUALCOMM Incorporated
Daeik Daniel Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ANALOG SWITCH FOR RF FRONT END
Publication number
20150042399
Publication date
Feb 12, 2015
QUALCOMM Incorporated
James Francis Imbornone
G05 - CONTROLLING REGULATING
Information
Patent Application
SWITCH LINEARIZER
Publication number
20150022024
Publication date
Jan 22, 2015
QUALCOMM Incorporated
Marc Gerald Dicicco
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TUNABLE DIPLEXERS IN THREE-DIMENSIONAL (3D) INTEGRATED CIRCUITS (IC...
Publication number
20140327496
Publication date
Nov 6, 2014
QUALCOMM Incorporated
Chengjie Zuo
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Step Attenuator with Constant Input Capacitance
Publication number
20140266518
Publication date
Sep 18, 2014
QUALCOMM Incorporated
Xinwei Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DIPLEXER DESIGN USING THROUGH GLASS VIA TECHNOLOGY
Publication number
20140197902
Publication date
Jul 17, 2014
QUALCOMM Incorporated
Chengjie Zuo
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CONTROL OF TRANSMIT POWER AND ADJUSTMENT OF ANTENNA TUNING NETWORK...
Publication number
20130331042
Publication date
Dec 12, 2013
QUALCOMM Incorporated
Puay Hoe See
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ANTENNA TUNING AND TRANSMIT PATH SELECTION
Publication number
20130322562
Publication date
Dec 5, 2013
QUALCOMM Incorporated
Xiangdong ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POWER DETECTOR WITH TEMPERATURE COMPENSTATION
Publication number
20130324062
Publication date
Dec 5, 2013
QUALCOMM Incorporated
Xinwei Wang
G01 - MEASURING TESTING
Information
Patent Application
DETERMINING A DELIVERED POWER ESTIMATE AND A LOAD IMPEDANCE ESTIMAT...
Publication number
20130324057
Publication date
Dec 5, 2013
QUALCOMM Incorporated
Xiangdong Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ADAPTIVE TUNING OF AN IMPEDANCE MATCHING CIRCUIT IN A WIRELESS DEVICE
Publication number
20130069737
Publication date
Mar 21, 2013
QUALCOMM Incorporated
Puay Hoe See
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMPEDANCE MATCHING CIRCUITS WITH MULTIPLE CONFIGURATIONS
Publication number
20130063223
Publication date
Mar 14, 2013
QUALCOMM Incorporated
Puay Hoe See
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
I/Q IMBALANCE ESTIMATION AND COMPENSATION FOR A TRANSMITTER AND A R...
Publication number
20110013724
Publication date
Jan 20, 2011
QUALCOMM Incorporated
Leon Teruo Metreaud
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIATED POWER CONTROL FOR A MULTI-ANTENNA TRANSMISSION
Publication number
20100222017
Publication date
Sep 2, 2010
QUALCOMM Incorporated
J. Rodney Walton
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STEPPED GAIN MIXER
Publication number
20090238313
Publication date
Sep 24, 2009
QUALCOMM Incorporated
Xinwei Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
I/Q IMBALANCE ESTIMATION AND CORRECTION IN A COMMUNICATION SYSTEM
Publication number
20090175398
Publication date
Jul 9, 2009
QUALCOMM Incorporated
Hakan Inanoglu
H04 - ELECTRIC COMMUNICATION TECHNIQUE