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Peter J. Frith

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  • Edinburgh, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,811,312
    • Issue date Nov 7, 2023
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,722,057
    • Issue date Aug 8, 2023
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 11,652,405
    • Issue date May 16, 2023
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,652,406
    • Issue date May 16, 2023
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Data transfer
    • Patent number 11,417,349
    • Issue date Aug 16, 2022
    • Cirrus Logic, Inc.
    • John Paul Lesso
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,398,777
    • Issue date Jul 26, 2022
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,146,171
    • Issue date Oct 12, 2021
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Charge pump circuit
    • Patent number 11,043,894
    • Issue date Jun 22, 2021
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 11,031,863
    • Issue date Jun 8, 2021
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 10,819,229
    • Issue date Oct 27, 2020
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Data transfer
    • Patent number 10,636,431
    • Issue date Apr 28, 2020
    • Cirrus Logic, Inc.
    • John Paul Lesso
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 10,587,187
    • Issue date Mar 10, 2020
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 10,312,802
    • Issue date Jun 4, 2019
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 10,014,769
    • Issue date Jul 3, 2018
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Charge pump circuit
    • Patent number 9,735,672
    • Issue date Aug 15, 2017
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 9,685,855
    • Issue date Jun 20, 2017
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Charge pump circuit
    • Patent number 9,685,856
    • Issue date Jun 20, 2017
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 9,673,700
    • Issue date Jun 6, 2017
    • Cirrus Logic, Inc.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Data transfer
    • Patent number 9,424,849
    • Issue date Aug 23, 2016
    • Cirrus Logic, Inc.
    • John Paul Lesso
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Charge pump circuit
    • Patent number 9,391,508
    • Issue date Jul 12, 2016
    • Cirrus Logic Inc.
    • John Paul Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 9,306,448
    • Issue date Apr 5, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 9,136,755
    • Issue date Sep 15, 2015
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit
    • Patent number 8,890,604
    • Issue date Nov 18, 2014
    • Wolfson Microelectronics Ltd.
    • John Paul Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 8,660,277
    • Issue date Feb 25, 2014
    • Wolfson Microelectronics plc
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 8,373,506
    • Issue date Feb 12, 2013
    • Wolfson Microelectronics plc
    • John Paul Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Audio amplifier circuit and electronic apparatus including the same
    • Patent number 8,363,856
    • Issue date Jan 29, 2013
    • Wolfson Microelectronics ple
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 8,279,012
    • Issue date Oct 2, 2012
    • Wolfson Microelectronics plc
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 8,183,931
    • Issue date May 22, 2012
    • Wolfson Microelectronics plc
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Amplifier circuit and methods of operation thereof
    • Patent number 7,714,660
    • Issue date May 11, 2010
    • Wolfson Microelectronics plc
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Charge pump circuit and methods of operation thereof
    • Patent number 7,626,445
    • Issue date Dec 1, 2009
    • Wolfson Microelectronics plc
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    DATA TRANSFER
    • Publication number 20220383882
    • Publication date Dec 1, 2022
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20220321003
    • Publication date Oct 6, 2022
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20220029532
    • Publication date Jan 27, 2022
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20220029533
    • Publication date Jan 27, 2022
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20210313878
    • Publication date Oct 7, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20210297762
    • Publication date Sep 23, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20210281168
    • Publication date Sep 9, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20200373833
    • Publication date Nov 26, 2020
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DATA TRANSFER
    • Publication number 20200219522
    • Publication date Jul 9, 2020
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20200052582
    • Publication date Feb 13, 2020
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20190379282
    • Publication date Dec 12, 2019
    • Circus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20190379283
    • Publication date Dec 12, 2019
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20190356222
    • Publication date Nov 21, 2019
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20180323705
    • Publication date Nov 8, 2018
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20170288534
    • Publication date Oct 5, 2017
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20170250601
    • Publication date Aug 31, 2017
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20170250600
    • Publication date Aug 31, 2017
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DATA TRANSFER
    • Publication number 20160358617
    • Publication date Dec 8, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20160336850
    • Publication date Nov 17, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20160322895
    • Publication date Nov 3, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20160211816
    • Publication date Jul 21, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20160028306
    • Publication date Jan 28, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20150070082
    • Publication date Mar 12, 2015
    • Wolfson Microelectronics Ltd.
    • John Paul Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20140152388
    • Publication date Jun 5, 2014
    • WOLFSON MICROELECTRONICS PLC
    • John P. Lesso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DATA TRANSFER
    • Publication number 20130197920
    • Publication date Aug 1, 2013
    • WOLFSON MICROELECTRONICS PLC
    • John Paul Lesso
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20120170770
    • Publication date Jul 5, 2012
    • John Paul Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CHARGE PUMP CIRCUIT
    • Publication number 20120163632
    • Publication date Jun 28, 2012
    • John Paul Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AUDIO DEVICE
    • Publication number 20110276975
    • Publication date Nov 10, 2011
    • Niall Brown
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20110235827
    • Publication date Sep 29, 2011
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AMPLIFIER CIRCUIT AND METHODS OF OPERATION THEREOF
    • Publication number 20110115563
    • Publication date May 19, 2011
    • John P. Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY