Patents by Inventor Peihua Ye

Peihua Ye 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: 10812030
    Abstract: Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. A bypass path including a fixed attenuator is coupled in parallel with the variable gain amplifier between the signal input and the signal output to selectively couple the signal input to the signal output through the fixed attenuator during a bypass mode.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 20, 2020
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Peihua Ye, Patrick Marcus Naraine, Adrian John Bergsma, Peter Harris Robert Popplewell, Thomas Obkircher
  • Patent number: 10560202
    Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: February 11, 2020
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Adrian John Bergsma, Peihua Ye, Thomas Obkircher, Peter Harris Robert Popplewell, Gregory Edward Babcock, William J. Domino
  • Patent number: 10554188
    Abstract: Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. The level of the bias signal is ramped from an initial bias level to a final bias level over numerous steps. The steps include at least one step in which the level of the bias signal is between the initial bias level and the final bias level. An amplifier system having multiple stages may be controlled to enable each stage and selectively couple each stage in a sequence that couples an output stage to an output terminal at the completion of the sequence.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: February 4, 2020
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Adrian John Bergsma, Thomas Obkircher, Peihua Ye, Bang Li Liang, Peter Harris Robert Popplewell, William J. Domino
  • Publication number: 20190386624
    Abstract: Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. A bypass path including a fixed attenuator is coupled in parallel with the variable gain amplifier between the signal input and the signal output to selectively couple the signal input to the signal output through the fixed attenuator during a bypass mode.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventors: Peihua Ye, Patrick Marcus Naraine, Adrian John Bergsma, Peter Harris Robert Popplewell, Thomas Obkircher
  • Publication number: 20190334493
    Abstract: Amplifier systems and methods are provided that include a fixed gain amplification stage coupled to an adjustable attenuation stage further coupled to a variable gain amplification stage. A controller controls an amount of attenuation provided by the adjustable attenuation stage and an amount of gain provided by the variable gain amplification stage to maintain any of various noise, efficiency, and/or linearity requirements of the amplifier system.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Inventors: William J. Domino, Thomas Obkircher, Adrian John Bergsma, Peihua Ye
  • Patent number: 10439576
    Abstract: Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. A bypass path including a fixed attenuator is coupled in parallel with the variable gain amplifier between the signal input and the signal output to selectively couple the signal input to the signal output through the fixed attenuator during a bypass mode.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 8, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Peihua Ye, Patrick Marcus Naraine, Adrian John Bergsma, Peter Harris Robert Popplewell, Thomas Obkircher
  • Publication number: 20190273475
    Abstract: Apparatus and methods for low noise amplifiers (LNAs) are provided herein. In certain configurations, an LNA includes a mode control circuit that operates the LNA in one of a plurality of modes including a gain mode and a bypass mode, a gain circuit electrically connected between an input terminal and an output terminal and operable to amplify a radio frequency signal received from the input terminal in the gain mode, and a bypass circuit electrically connected between the input terminal and the output terminal and operable to bypass the gain circuit in the bypass mode. The bypass circuit includes a balun that provides a first amount of compensation for a difference in phase delay between the bypass circuit and the gain circuit, and the LNA further includes a phase compensation circuit operable to provide a second amount of compensation for the difference in phase delay.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventors: Peihua Ye, Engin Ibrahim Pehlivanoglu, Eric J. Marsan
  • Patent number: 10396737
    Abstract: Amplifier systems and methods are provided that include a fixed gain amplification stage coupled to an adjustable attenuation stage further coupled to a variable gain amplification stage. A controller controls an amount of attenuation provided by the adjustable attenuation stage and an amount of gain provided by the variable gain amplification stage to maintain any of various noise, efficiency, and/or linearity requirements of the amplifier system.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: August 27, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: William J. Domino, Thomas Obkircher, Adrian John Bergsma, Peihua Ye
  • Patent number: 10340861
    Abstract: Apparatus and methods for low noise amplifiers (LNAs) are provided herein. In certain configurations, an LNA includes a gain stage and a bypass stage electrically connected in parallel with one another between an input and an output. The bypass stage and the gain stage are selectively activated based on a mode of the LNA. For example, the gain stage provides inverting amplification to an input signal received at the input in a gain mode. Additionally, the bypass stage provides a low gain path from the input to the output in a bypass mode. Additionally, the bypass stage includes a balun that provides inversion to the bypass stage such that a phase delay through the bypass stage is similar to a phase delay of the gain stage.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 2, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Peihua Ye, Engin Ibrahim Pehlivanoglu, Eric J. Marsan
  • Publication number: 20190190623
    Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Adrian John Bergsma, Peihua Ye, Thomas Obkircher, Peter Harris Robert Popplewell, Gregory Edward Babcock, William J. Domino
  • Patent number: 10256921
    Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 9, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Adrian John Bergsma, Peihua Ye, Thomas Obkircher, Peter Harris Robert Popplewell, Gregory Edward Babcock, William J. Domino
  • Publication number: 20180145648
    Abstract: Apparatus and methods for low noise amplifiers (LNAs) are provided herein. In certain configurations, an LNA includes a gain stage and a bypass stage electrically connected in parallel with one another between an input and an output. The bypass stage and the gain stage are selectively activated based on a mode of the LNA. For example, the gain stage provides inverting amplification to an input signal received at the input in a gain mode. Additionally, the bypass stage provides a low gain path from the input to the output in a bypass mode. Additionally, the bypass stage includes a balun that provides inversion to the bypass stage such that a phase delay through the bypass stage is similar to a phase delay of the gain stage.
    Type: Application
    Filed: October 12, 2017
    Publication date: May 24, 2018
    Inventors: Peihua Ye, Engin Ibrahim Pehlivanoglu, Eric Marsan
  • Publication number: 20180138878
    Abstract: Amplifier systems and methods are provided that include a fixed gain amplification stage coupled to an adjustable attenuation stage further coupled to a variable gain amplification stage. A controller controls an amount of attenuation provided by the adjustable attenuation stage and an amount of gain provided by the variable gain amplification stage to maintain any of various noise, efficiency, and/or linearity requirements of the amplifier system.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: William J. Domino, Thomas Obkircher, Adrian John Bergsma, Peihua Ye
  • Publication number: 20180138990
    Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: Adrian John Bergsma, Peihua Ye, Thomas Obkircher, Peter Harris Robert Popplewell, Gregory Edward Babcock, William J. Domino
  • Publication number: 20180138877
    Abstract: Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. The level of the bias signal is ramped from an initial bias level to a final bias level over numerous steps. The steps include at least one step in which the level of the bias signal is between the initial bias level and the final bias level. An amplifier system having multiple stages may be controlled to enable each stage and selectively couple each stage in a sequence that couples an output stage to an output terminal at the completion of the sequence.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: Adrian John Bergsma, Thomas Obkircher, Peihua Ye, Bang Li Liang, Peter Harris Robert Popplewell, William J. Domino
  • Publication number: 20180131339
    Abstract: Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. A bypass path including a fixed attenuator is coupled in parallel with the variable gain amplifier between the signal input and the signal output to selectively couple the signal input to the signal output through the fixed attenuator during a bypass mode.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 10, 2018
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Peihua Ye, Patrick Marcus Naraine, Adrian John Bergsma, Peter Harris Robert Popplewell, Thomas Obkircher
  • Patent number: 7512393
    Abstract: A downconverter is provided. The downconverter includes a I mixer and a Q mixer. Each mixer includes a transconductance stage and a mixer core stage. The outputs of the transconductance stages of the mixers are shorted together, and a resistors are arranged in series with an input of the mixer core stages.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: March 31, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Raja Pullela, Peihua Ye, Tirdad Sowlati
  • Publication number: 20070087720
    Abstract: A downconverter is provided. The downconverter includes a I mixer and a Q mixer. Each mixer includes a transconductance stage and a mixer core stage. The outputs of the transconductance stages of the mixers are shorted together, and a resistors are arranged in series with an input of the mixer core stages.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 19, 2007
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Raja Pullela, Peihua Ye, Tirdad Sowlati
  • Patent number: 6867477
    Abstract: According to one exemplary embodiment, a bipolar transistor comprises a base having a top surface. The bipolar transistor might be a lateral PNP bipolar transistor and the base may comprise, for example, N type single crystal silicon. The bipolar transistor further comprises an emitter having a top surface, where the emitter is situated on the top surface of the base. The emitter may comprise P+ type single crystal silicon-germanium, for example. The bipolar transistor further comprises an electron barrier layer situated directly on the top surface of the emitter. The electron barrier layer will cause an increase in the gain, or beta, of the bipolar transistor. The electron barrier layer may be a dielectric such as, for example, silicon oxide. In another embodiment, a floating N+ region, instead of the electron barrier layer, is utilized to increase the gain of the bipolar transistor.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 15, 2005
    Assignee: Newport Fab, LLC
    Inventors: Jie Zheng, Peihua Ye, Marco Racanelli
  • Publication number: 20040089877
    Abstract: According to one exemplary embodiment, a bipolar transistor comprises a base having a top surface. The bipolar transistor might be a lateral PNP bipolar transistor and the base may comprise, for example, N type single crystal silicon. The bipolar transistor further comprises an emitter having a top surface, where the emitter is situated on the top surface of the base. The emitter may comprise P+ type single crystal silicon-germanium, for example. The bipolar transistor further comprises an electron barrier layer situated directly on the top surface of the emitter. The electron barrier layer will cause an increase in the gain, or beta, of the bipolar transistor. The electron barrier layer may be a dielectric such as, for example, silicon oxide. In another embodiment, a floating N+ region, instead of the electron barrier layer, is utilized to increase the gain of the bipolar transistor.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Applicant: Newport Fab, LLC dba Jazz Semiconductor.
    Inventors: Jie Zheng, Peihua Ye, Marco Racanelli