Inventor

John Paul Lesso

Inventor

Edinburgh, GB

Overview

2007–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 150 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Fprimary

H03FAmplifiers14%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers13%

G10LSpeech analysis techniques or speech synthesis11%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems10%

H03GControl of amplification10%

G06FElectric digital data processing7%

H03MCoding7%

H03KPulse technique4%

B81BMicrostructural devices or systems, e.g. micromechanical devices3%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses2%

PatentTitleYear

11,134,354Wear detection2021 11,134,324Microphone device and system comprising the microphone device2021 11,121,690Class D amplifier circuit2021 11,122,350Method and apparatus for on ear detect2021 11,101,778Class D amplifiers2021 11,089,415On-ear transition detection2021 11,081,115Speaker recognition2021 11,074,917Speaker identification2021 11,051,117Detection of loudspeaker playback2021 11,042,617Methods, apparatus and systems for biometric processes2021 11,042,616Detection of replay attack2021 11,042,618Methods, apparatus and systems for biometric processes2021 11,043,894Charge pump circuit2021 11,037,574Speaker recognition and speaker change detection2021 11,031,940Sensing circuits2021 11,031,863Amplifier circuit and methods of operation thereof2021 11,024,317Microphone authentication2021 11,023,755Detection of liveness2021 11,024,318Speaker verification2021 11,017,252Detection of liveness2021 11,018,186Multi-level memristor elements2021 11,012,799Detection of loudspeaker playback2021 11,003,751Methods, apparatus and systems for biometric processes2021 10,997,981Speaker recognition and speaker change detection2021 10,984,269Detection of liveness2021 10,984,268Detection of liveness2021 10,984,083Authentication of user using ear biometric data2021 10,956,546Methods, apparatus and computer-readable mediums related to biometric authentication2021 10,950,245Generating prompts for user vocalisation for biometric speaker recognition2021 10,945,069Loudspeaker driver systems2021 10,935,439Temperature monitoring2021 10,923,128Speech recognition2021 10,915,614Biometric authentication2021 10,904,684Activity detection2021 10,878,825Biometric processes2020 10,863,284Methods and apparatuses for driving audio and ultrasonic signals from the same transducer2020 10,853,464Detection of replay attack2020 10,847,165Detection of liveness2020 10,839,808Detection of replay attack2020 10,832,702Robustness of speech processing system against ultrasound and dolphin attacks2020 10,818,298Audio processing2020 10,820,096Audio circuitry2020 10,819,229Charge pump circuit2020 10,819,363Modulators2020 10,810,291Ear proximity detection2020 10,771,047Modulators2020 10,770,076Magnetic detection of replay attack2020 10,726,829Performing speaker change detection and speaker recognition on a trigger phrase2020 10,726,849Speaker recognition with assessment of audio frame contribution2020 10,720,171Audio processing2020 10,714,109Methods and apparatus for buffering and compression of data2020 10,700,648Audio amplifiers2020 10,692,490Detection of replay attack2020 10,674,253Apparatus and methods for monitoring a microphone2020 10,649,732Processing circuitry2020 10,645,495Digital microphones2020 10,644,660Transducer driver circuitry2020 10,636,431Data transfer2020 10,616,701Detection of loudspeaker playback2020 10,601,430Clock generator2020 10,587,232Class D amplifiers2020 10,587,187Amplifier circuit and methods of operation thereof2020 10,574,256Modulators2020 10,566,992Modulators2020 10,567,896Apparatus and methods for monitoring a microphone2020 10,554,189Analogue signal paths2020 10,540,978Speaker verification2020 10,506,336Audio circuitry2019 10,461,714Class D amplifier circuit2019 10,431,212Speech recognition2019 10,432,151Audio amplifiers2019 10,375,493Audio test mode2019 10,368,178Apparatus and methods for monitoring a microphone2019 10,361,709Clock generator2019 10,348,282Modulators2019 10,333,395Charge pump circuit2019 10,312,802Charge pump circuit2019 10,313,792Digital microphones2019 10,297,258Microphone unit comprising integrated speech analysis2019 10,263,633Modulators2019 10,257,612Digital microphones2019 10,256,837Modulators2019 10,244,331MEMs devices2019 10,237,668Apparatus and methods for monitoring a microphone2019 10,193,561Phase locked loops2019 10,187,021DC offset compensation2019 10,177,718Amplifiers2019 10,171,049Class-D amplifier circuits2019 10,149,050Temperature monitoring for loudspeakers2018 10,070,223Signal processing for MEMS capacitive transducers2018 10,045,124Crosstalk mitigation2018 10,014,769Charge pump circuit2018 10,003,344Clock generator2018 9,923,574'Analogue-to-digital converter'2018 9,917,508'Charge pump circuit and methods of operation thereof'2018 9,899,978'Class D amplifier circuit'2018 9,866,180'Amplifiers'2018 9,787,261'Class-D amplifier circuits'2017 9,748,971'Analogue-to-digital converter'2017 9,735,672'Charge pump circuit'2017 9,716,945'Signal processing for MEMS capacitive transducers'2017 9,716,476'DC offset compensation'2017 9,697,831'Speech recognition'2017 9,685,856'Charge pump circuit'2017 9,685,855'Amplifier circuit and methods of operation thereof'2017 9,673,700'Amplifier circuit and methods of operation thereof'2017 9,628,040'Class D amplifier circuit'2017 9,571,927'Digital/analogue conversion'2017 9,515,626'Digital/analogue conversion'2016 9,473,098'Amplifier circuit'2016 9,473,087'Class-D amplifier circuits'2016 9,425,813'Analogue-to-digital converter'2016 9,424,849'Data transfer'2016 9,391,508'Charge pump circuit'2016 9,306,448'Amplifier circuit and methods of operation thereof'2016 9,281,827'Clock generator'2016 9,252,729'Amplifier circuit and method of amplifying a signal in an amplifier circuit'2016 9,236,794'Charge pump circuit and methods of operations thereof'2016 9,136,755'Charge pump circuit'2015 9,019,012'Amplifier circuit with offset control'2015 8,988,149'Amplifier circuit and method of amplifying a signal in an amplifier circuit'2015 8,957,731'Amplifier circuit with offset control'2015 8,913,762'Capacitive transducer circuit and method'2014 8,890,604'Charge pump circuit'2014 8,854,132'Amplifier circuit'2014 8,824,703'Amplifier circuit'2014 8,742,970'Analogue-to-digital converter'2014 8,687,826'Amplifier circuit'2014 8,660,277'Amplifier circuit and methods of operation thereof'2014 8,624,669'DC offset compensation'2014 8,514,025'Amplifier circuit and method of amplifying a signal in an amplifier circuit'2013 8,427,851'Charge pump circuit and methods of operation thereof'2013 8,373,506'Amplifier circuit and methods of operation thereof'2013 8,363,856'Audio amplifier circuit and electronic apparatus including the same'2013 8,279,012'Amplifier circuit and methods of operation thereof'2012 8,198,941'Amplifier circuit and method of amplifying a signal in an amplifier circuit'2012 8,183,931'Amplifier circuit and methods of operation thereof'2012 8,159,200'DC-DC converter circuits, and methods and apparatus including such circuits'2012 8,068,623'Capacitive transducer circuit and method'2011 7,994,763'DC-DC converter circuits, and methods and apparatus including such circuits'2011 7,994,954'Calibration circuit and associated method'2011 7,990,742'Charge pump circuit and methods of operation thereof'2011 7,723,965'DC-DC converter circuits, and methods and apparatus including such circuits'2010 7,724,048'Locked loop circuit'2010 7,714,660'Amplifier circuit and methods of operation thereof'2010 7,667,508'Frequency synthesizer'2010 7,649,480'Calibration circuit and associated method'2010 7,626,445'Charge pump circuit and methods of operation thereof'2009 7,622,984'Charge pump circuit and methods of operation thereof'2009 7,295,053'Delay-locked loop circuits'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2017Patents assigned to WOLFSON MICROELECTRONICS PLC (31)· patent assignee history

2007–2021Based in Edinburgh, GB· patent location history

2011–2015Patents assigned to LESSO JOHN PAUL (12)· patent assignee history

2012–2014Patents assigned to LESSO JOHN P (5)· patent assignee history

2015–2021Patents assigned to CIRRUS LOGIC INT SEMICONDUCTOR LTD (108)· patent assignee history

2016–2021Patents assigned to CIRRUS LOGIC INC (103)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CIRRUS LOGIC INT SEMICONDUCTOR LTD	108	2015–2021
CIRRUS LOGIC INC	103	2016–2021
WOLFSON MICROELECTRONICS PLC	31	2007–2017
LESSO JOHN PAULself	12	2011–2015
LESSO JOHN Pself	5	2012–2014

Locations

Location	Patents	Span
Edinburgh, GB	150	2007–2021