Patents by Inventor Peter Phu Tran
Peter Phu Tran 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).
-
Patent number: 10340961Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: GrantFiled: May 17, 2018Date of Patent: July 2, 2019Assignee: Skyworks Solutions, Inc.Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Publication number: 20180367173Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: ApplicationFiled: May 17, 2018Publication date: December 20, 2018Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Patent number: 10063200Abstract: Feedback circuit for power amplifier. In some embodiments, a radio-frequency amplifier can include a bipolar junction transistor configured to amplify a signal, and having an input and an output. The radio-frequency amplifier can further include a feedback circuit implemented between the output and input of the bipolar junction transistor. The feedback circuit can include a parallel assembly of a field-effect transistor and a resistive element such that the resistive element is bypassed when the field-effect transistor is ON and an overall resistance of the feedback circuit includes the resistive element when the field-effect transistor is OFF. Such a feedback circuit can be configured to be capable of providing a plurality of resistance values between the output and input of the bipolar junction transistor to facilitate different gains of the bipolar junction transistor.Type: GrantFiled: March 21, 2017Date of Patent: August 28, 2018Assignee: Skyworks Solutions, Inc.Inventors: Andy Cheng Pang Wu, Yu-Jui Lin, Peter Phu Tran
-
Patent number: 10014889Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: GrantFiled: December 27, 2016Date of Patent: July 3, 2018Assignee: Skyworks Solutions, Inc.Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Patent number: 9991918Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: GrantFiled: December 27, 2016Date of Patent: June 5, 2018Assignee: Skyworks Solutions, Inc.Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Publication number: 20170302239Abstract: Feedback circuit for power amplifier. In some embodiments, a radio-frequency amplifier can include a bipolar junction transistor configured to amplify a signal, and having an input and an output. The radio-frequency amplifier can further include a feedback circuit implemented between the output and input of the bipolar junction transistor. The feedback circuit can include a parallel assembly of a field-effect transistor and a resistive element such that the resistive element is bypassed when the field-effect transistor is ON and an overall resistance of the feedback circuit includes the resistive element when the field-effect transistor is OFF. Such a feedback circuit can be configured to be capable of providing a plurality of resistance values between the output and input of the bipolar junction transistor to facilitate different gains of the bipolar junction transistor.Type: ApplicationFiled: March 21, 2017Publication date: October 19, 2017Inventors: Andy Cheng Pang WU, Yu-Jui LIN, Peter Phu TRAN
-
Patent number: 9698740Abstract: Aspects of this disclosure relate to a mode linearization switch circuit that can adjust an effective impedance provided to an output of an amplifier. In an embodiment, an apparatus includes an amplifier configured to amplify a radio frequency (RF) signal and a mode linearization switch circuit electrically coupled to an output of the amplifier. The mode linearization switch circuit can include a capacitor, a switch in series with the capacitor, and a series LC circuit in parallel with the switch.Type: GrantFiled: July 6, 2015Date of Patent: July 4, 2017Assignee: Skyworks Solutions, Inc.Inventors: Yu-Jui Lin, Andy Cheng Pang Wu, Peter Phu Tran
-
Publication number: 20170111074Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: ApplicationFiled: December 27, 2016Publication date: April 20, 2017Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Publication number: 20170111066Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: ApplicationFiled: December 27, 2016Publication date: April 20, 2017Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Patent number: 9602064Abstract: Switchable feedback circuit for radio-frequency (RF) power amplifiers. In some embodiments, an RF power amplifier (PA) circuit can include a transistor having a base, a collector, and an emitter. The transistor can be configured to amplify an RF signal. The RF PA circuit can further include a switchable feedback circuit implemented between the collector and the base. The switchable feedback circuit can be configured to provide a plurality of resistance values between the collector and the base. Such a PA circuit can be implemented in products such as a die, a module, and a wireless device.Type: GrantFiled: June 28, 2014Date of Patent: March 21, 2017Assignee: Skyworks Solutions, Inc.Inventors: Andy Cheng Pang Wu, Yu-Jui Lin, Peter Phu Tran
-
Patent number: 9572052Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: GrantFiled: August 7, 2015Date of Patent: February 14, 2017Assignee: Skyworks Solutions, Inc.Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Publication number: 20160044677Abstract: In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.Type: ApplicationFiled: August 7, 2015Publication date: February 11, 2016Inventors: Joel Richard King, Peter Phu Tran, Nick Cheng, David Richard Pehlke
-
Publication number: 20160013767Abstract: Aspects of this disclosure relate to a mode linearization switch circuit that can adjust an effective impedance provided to an output of an amplifier. In an embodiment, an apparatus includes an amplifier configured to amplify a radio frequency (RF) signal and a mode linearization switch circuit electrically coupled to an output of the amplifier. The mode linearization switch circuit can include a capacitor, a switch in series with the capacitor, and a series LC circuit in parallel with the switch.Type: ApplicationFiled: July 6, 2015Publication date: January 14, 2016Inventors: Yu-Jui Lin, Andy Cheng Pang Wu, Peter Phu Tran
-
Publication number: 20150381123Abstract: Switchable feedback circuit for radio-frequency (RF) power amplifiers. In some embodiments, an RF power amplifier (PA) circuit can include a transistor having a base, a collector, and an emitter. The transistor can be configured to amplify an RF signal. The RF PA circuit can further include a switchable feedback circuit implemented between the collector and the base. The switchable feedback circuit can be configured to provide a plurality of resistance values between the collector and the base. Such a PA circuit can be implemented in products such as a die, a module, and a wireless device.Type: ApplicationFiled: June 28, 2014Publication date: December 31, 2015Inventors: Andy Cheng Pang WU, Yu-Jui LIN, Peter Phu TRAN
-
Patent number: 8350418Abstract: A circuit for generating a reference voltage includes a first transistor configured to receive a reference system voltage, the first transistor configured as a current source, the first transistor configured to provide a current independent of the system voltage, a plurality of diode devices configured to receive the current provided by the first transistor, and a second transistor associated with the plurality of diode devices, the second transistor configured to compensate for process variations in the first transistor, such that the plurality of diode devices provides a reference voltage that is at least partially compensated for the process variations.Type: GrantFiled: October 2, 2009Date of Patent: January 8, 2013Assignee: Skyworks Solutions, Inc.Inventors: Andre G. Metzger, Anise M. Azizad, Aleksey Lyalin, Peter Phu Tran
-
Publication number: 20110080153Abstract: A circuit for generating a reference voltage includes a first transistor configured to receive a reference system voltage, the first transistor configured as a current source, the first transistor configured to provide a current independent of the system voltage, a plurality of diode devices configured to receive the current provided by the first transistor, and a second transistor associated with the plurality of diode devices, the second transistor configured to compensate for process variations in the first transistor, such that the plurality of diode devices provides a reference voltage that is at least partially compensated for the process variations.Type: ApplicationFiled: October 2, 2009Publication date: April 7, 2011Inventors: Andre G. Metzger, Anise M. Azizad, Aleksey Lyalin, Peter Phu Tran