Patents by Inventor Ethan CHANG
Ethan CHANG 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).
-
Publication number: 20240100181Abstract: The present disclosure provides anti-CD19 antibody drug conjugates (ADCs), including compositions and methods of using such ADCs.Type: ApplicationFiled: June 15, 2023Publication date: March 28, 2024Inventors: Chewei A. Chang, Ethan D. Emberley, Adrian D. Hobson, Christopher C. Marvin, James W. Purcell
-
Patent number: 11933941Abstract: The invention is related to contact lenses that not only comprise the much desired water gradient structural configurations, but also have a minimized uptakes of polycationic antimicrobials and a long-lasting surface hydrophilicity and wettability even after going through a 30-days lens care regime. Because of the water gradient structural configuration and a relatively-thick, extremely-soft and water-rich hydrogel surface layer, a contact lens of the invention can provide superior wearing comfort. Further, a contact lens of the invention is compatible with multipurpose lens care solutions present in the market and can endure the harsh lens care handling conditions (e.g., digital rubbings, accidental inversion of contact lenses, etc.) encountered in a daily lens care regime. As such, they are suitable to be used as weekly- or monthly-disposable water gradient contact lenses.Type: GrantFiled: January 11, 2022Date of Patent: March 19, 2024Assignee: Alcon Inc.Inventors: Yongxing Qiu, John Dallas Pruitt, Newton T. Samuel, Chung-Yuan Chiang, Robert Carey Tucker, Yuan Chang, Ethan Leveillee
-
Publication number: 20230387944Abstract: Circuitry, modules, devices, and methods for integrating front-end carrier aggregation architecture are disclosed. In some embodiments, a method can include providing a packaging substrate configured to receive a plurality of components. The method can also include providing a front-end architecture implemented on the packaging substrate, the front-end architecture including a switching assembly configured to provide switching for two or more frequency bands, the switching assembly including at least one coupler configured to couple a signal associated with the switching assembly, and a diplexer circuit including a first filter configured to pass a first frequency band, a second filter configured to pass a second frequency band, and a first electrostatic discharge network configured to dissipate electrostatic energy associated with the first and second frequency bands from the front-end architecture.Type: ApplicationFiled: April 21, 2023Publication date: November 30, 2023Inventors: Srivatsan JAYARAMAN, Omar MUSTAFA, Yalin JIN, Ethan CHANG, Ying SHI, Reza KASNAVI, Philip H. THOMPSON, Kenneth Norman WARREN
-
Patent number: 11664963Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a method for performing carrier aggregation (CA) can include providing a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The method can further include providing a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: GrantFiled: July 16, 2021Date of Patent: May 30, 2023Assignee: Skyworks Solutions, Inc.Inventors: Ethan Chang, Roman Zbigniew Arkiszewski, John G. Freed, Edward James Anthony, Reza Kasnavi
-
Patent number: 11664829Abstract: Circuitry, modules and devices for integrating front-end carrier aggregation architecture, are disclosed. In some embodiments, a front-end architecture includes a switching assembly configured to provide switching for two or more frequency bands. In some embodiments, the switching assembly includes at least one coupler configured to couple a signal associated with the switching assembly. The front-end architecture can also include a diplexer circuit including a first filter configured to pass a first frequency band, a second filter configured to pass a second frequency band, and a first electrostatic discharge network configured to dissipate electrostatic energy associated with the first and second frequency bands from the front-end architecture.Type: GrantFiled: November 24, 2020Date of Patent: May 30, 2023Assignee: Skyworks Solutions, Inc.Inventors: Srivatsan Jayaraman, Omar Mustafa, Yalin Jin, Ethan Chang, Ying Shi, Reza Kasnavi, Philip H. Thompson, Kenneth Norman Warren
-
Publication number: 20220045833Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a method for performing carrier aggregation (CA) can include providing a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The method can further include providing a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: ApplicationFiled: July 16, 2021Publication date: February 10, 2022Inventors: Ethan CHANG, Roman Zbigniew ARKISZEWSKI, John G. FREED, Edward James ANTHONY, Reza KASNAVI
-
Patent number: 11070347Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: GrantFiled: October 10, 2019Date of Patent: July 20, 2021Assignee: Skyworks Solutions, Inc.Inventors: Ethan Chang, Roman Zbigniew Arkiszewski, John G. Freed, Edward James Anthony, Reza Kasnavi
-
Publication number: 20210175910Abstract: Circuitry, modules and devices for integrating front-end carrier aggregation architecture, are disclosed. In some embodiments, a front-end architecture includes a switching assembly configured to provide switching for two or more frequency bands. In some embodiments, the switching assembly includes at least one coupler configured to couple a signal associated with the switching assembly. The front-end architecture can also include a diplexer circuit including a first filter configured to pass a first frequency band, a second filter configured to pass a second frequency band, and a first electrostatic discharge network configured to dissipate electrostatic energy associated with the first and second frequency bands from the front-end architecture.Type: ApplicationFiled: November 24, 2020Publication date: June 10, 2021Inventors: Srivatsan JAYARAMAN, Omar MUSTAFA, Yalin JIN, Ethan CHANG, Ying SHI, Reza KASNAVI, Philip H. THOMPSON, Kenneth Norman WARREN
-
Patent number: 10727893Abstract: Reconfigurable front-end module for carrier aggregation. In some embodiments, a front-end module can include a plurality of signal ports and a plurality of antenna ports. The front-end module can further include a switch assembly configured to route signals along one or more of a plurality of filtering paths between the signal ports and the antenna ports. Each of the filtering paths can include a filter, and the filtering paths can be configured to allow the antenna ports to be combined outside of the front-end module to accommodate a corresponding antenna configuration. The filtering paths can be further configured to maintain desirable filtering performance levels for different combinations of the antenna ports outside of the front-end module corresponding to the different antenna configurations.Type: GrantFiled: April 16, 2018Date of Patent: July 28, 2020Assignee: Skyworks Solutions, Inc.Inventors: Yaxing Zhang, Shaun Bryce Chamberlain, Srivatsan Jayaraman, Ethan Chang, Roman Zbigniew Arkiszewski, Reza Kasnavi, John C. Baldwin
-
Publication number: 20200162229Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: ApplicationFiled: October 10, 2019Publication date: May 21, 2020Inventors: Ethan CHANG, Roman Zbigniew ARKISZEWSKI, John G. FREED, Edward James ANTHONY, Reza KASNAVI
-
Patent number: 10447458Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: GrantFiled: August 12, 2015Date of Patent: October 15, 2019Assignee: Skyworks Solutions, Inc.Inventors: Ethan Chang, Roman Zbigniew Arkiszewski, John G Freed, Edward James Anthony, Reza Kasnavi
-
Publication number: 20190028136Abstract: Reconfigurable front-end module for carrier aggregation. In some embodiments, a front-end module can include a plurality of signal ports and a plurality of antenna ports. The front-end module can further include a switch assembly configured to route signals along one or more of a plurality of filtering paths between the signal ports and the antenna ports. Each of the filtering paths can include a filter, and the filtering paths can be configured to allow the antenna ports to be combined outside of the front-end module to accommodate a corresponding antenna configuration. The filtering paths can be further configured to maintain desirable filtering performance levels for different combinations of the antenna ports outside of the front-end module corresponding to the different antenna configurations.Type: ApplicationFiled: April 16, 2018Publication date: January 24, 2019Inventors: Yaxing ZHANG, Shaun Bryce CHAMBERLAIN, Srivatsan JAYARAMAN, Ethan CHANG, Roman Zbigniew ARKISZEWSKI, Reza KASNAVI, John C. BALDWIN
-
Publication number: 20170093442Abstract: Circuitry, modules and devices for integrating front-end carrier aggregation architecture, are disclosed. In some embodiments, a front-end architecture includes a switching assembly configured to provide switching for two or more frequency bands. In some embodiments, the switching assembly includes at least one coupler configured to couple a signal associated with the switching assembly. The front-end architecture can also include a diplexer circuit including a first filter configured to pass a first frequency band, a second filter configured to pass a second frequency band, and a first electrostatic discharge network configured to dissipate electrostatic energy associated with the first and second frequency bands from the front-end architecture.Type: ApplicationFiled: September 26, 2016Publication date: March 30, 2017Inventors: Srivatsan JAYARAMAN, Omar MUSTAFA, Yalin JIN, Ethan CHANG, Ying SHI, Reza KASNAVI, Philip H. THOMPSON, Kenneth Norman WARREN
-
Publication number: 20160191085Abstract: Circuits, devices and modules for supporting dual or multi-antenna applications, are disclosed. In some embodiments, a front-end module includes a packaging substrate configured to receive a plurality of components, a first input port and a second input port configured to receive respective radio-frequency (RF) signals for amplification, a first antenna port and a second antenna port configured to output the amplified RF signals to respective antennas, and a front-end circuit. The front-end circuit can be implemented between the input ports and the antenna ports. The front-end circuit can include a power amplifier (PA) for each of the first and second input ports, an antenna switch configured to route the amplified RF signals from the PAs to their respective antenna ports, and a coupler implemented between the antenna switch and the antenna ports, the coupler configured to detect output power of the amplified RF signals.Type: ApplicationFiled: August 12, 2015Publication date: June 30, 2016Inventors: Reza KASNAVI, Ying SHI, Ethan CHANG
-
Publication number: 20160050665Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.Type: ApplicationFiled: August 12, 2015Publication date: February 18, 2016Inventors: Ethan CHANG, Roman Zbigniew ARKISZEWSKI, John G. FREED, Edward James ANTHONY, Reza KASNAVI
-
Patent number: 8421556Abstract: A switched capacitor includes a capacitor and a switch. The capacitor is coupled between a p-node and an n-node and includes interleaved p-fingers and n-fingers. A number of the p-fingers is greater than a number of the n-fingers. The switch is coupled between the n-node and ground.Type: GrantFiled: October 16, 2009Date of Patent: April 16, 2013Assignee: Broadcom CorporationInventors: Calvin (Shr-Lung) Chen, Ethan Chang
-
Publication number: 20120047296Abstract: A control module for controlling a communication network includes a master control unit generating a master control signal and a master pulse signal, a slave control unit generating a slave control signal; and a switch unit electrically connected to the master control unit, the slave control unit, and the communication network. The switch unit includes a timer and a multiplexer. The timer receives the master pulse signal, generates a first selecting signal when the master pulse signal exists, or generates a second selecting signal when the master pulse signal stops. The multiplexer receives the master control signal, the slave control signal, and the first/second selecting signal, transmits the master control signal to the communication network when receiving the first selecting signal, or transmits the slave control signal to the communication network when receiving the second selecting signal.Type: ApplicationFiled: September 21, 2010Publication date: February 23, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: JO-YU CHANG, ETHAN CHANG
-
Publication number: 20110090024Abstract: A switched capacitor includes a capacitor and a switch. The capacitor is coupled between a p-node and an n-node and includes interleaved p-fingers and n-fingers. A number of the p-fingers is greater than a number of the n-fingers. The switch is coupled between the n-node and ground.Type: ApplicationFiled: October 16, 2009Publication date: April 21, 2011Applicant: Broadcom CorporationInventors: Calvin (Shr-Lung) CHEN, Ethan CHANG